From patchwork Fri Nov  4 03:16:30 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031240
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id C442CC433FE
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:16:54 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S230209AbiKDDQw (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:16:52 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51580 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S229952AbiKDDQu (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:16:50 -0400
Received: from mail-pg1-x532.google.com (mail-pg1-x532.google.com
 [IPv6:2607:f8b0:4864:20::532])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A01D822BE9;
        Thu,  3 Nov 2022 20:16:49 -0700 (PDT)
Received: by mail-pg1-x532.google.com with SMTP id v3so3330883pgh.4;
        Thu, 03 Nov 2022 20:16:49 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=kVkDO2KOif2frQeCzecIa3Ot4mR/23B4wTbE/ilmNLI=;
        b=ISodEXugjsGq/3voQK8yKgdkqR315OB/AgxmhqVqPbmkoX6tYVJxq4Qe1LyWQeOTCL
         pOXwJlIJrbTSTw52Tmg+tM6gVo9rCHjHV4bniO/FsZX1yHZo68/hRy8G3GP51UZ54w3p
         YbgidRg7v11OIVoiBVF2BNhAbCSbrPqrSvxocMRm8usjN8IeI27KLtJKKTtcFCtKgrL7
         cv8eVSOH+881aWk7/zvyHPjeR6tPC3Rf9YaUFcFEs25De4bia3On/TvBgtGWmvVYAecN
         U/hJqDZ6J7Ql0/YllMRZczid+nCLjwuJkxJhWyAQP9cEXxaop0I1zTMAiDAxy8EB0iWd
         ekoQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=kVkDO2KOif2frQeCzecIa3Ot4mR/23B4wTbE/ilmNLI=;
        b=5VobFBQTWf+LwZDEGU7EqWIFR4G+xhCjn7dGQ0zsIFz9qE3hGplC2Kze2vI0NHUD/Q
         QnYNBAnDzPDn3RGHYA+DQDjN3qOjDGPISrkydbtHh2x3e+FnPM54OpPSGLUOGu6W1MFf
         7uYy1CBP8h3GKZUi05zhA1yva/Vx+YK+dAstCoyTcZnk+Eszej06ve4WynxNzQWY8D5h
         h8ve9os2qNBssilxVYIpJsdhISrbqFLHlQ1K7XcuUSvRFc4T4MguTCONLI5AsfhLwbHr
         hYj6W+NQQ7n03Ve1nRZr9mhvR6aqlfiqi8+j2N1BhDE3jtF2br0fR3GpGjBgivH2cCAD
         neHQ==
X-Gm-Message-State: ACrzQf2ol3+d6fBPxYmglQrhkZK5Y1kAwTI/EP0LE9Fr+ZeKqTtjPZ8Q
        o8EziVF0EHZ/w8fWKEZSUf3vooe0ZEA=
X-Google-Smtp-Source: 
 AMsMyM4gv9FFTkU3yc/kdYQAO0x9NhjY7M4+LxVPeUm9AG5lgYFwiLS9RSw36HZtBQOwFasZ85l0LQ==
X-Received: by 2002:a63:2215:0:b0:43b:e00f:7c7b with SMTP id
 i21-20020a632215000000b0043be00f7c7bmr28818221pgi.511.1667531808949;
        Thu, 03 Nov 2022 20:16:48 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.16.47
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:16:48 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 01/13] omapfb: connector-hdmi: switch to using gpiod
 API
Date: Thu,  3 Nov 2022 20:16:30 -0700
Message-Id: <20221103-omapfb-gpiod-v1-1-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../fbdev/omap2/omapfb/displays/connector-hdmi.c   | 49 +++++++---------------
 1 file changed, 14 insertions(+), 35 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/connector-hdmi.c b/drivers/video/fbdev/omap2/omapfb/displays/connector-hdmi.c
index 670b9c6eb5a9..8f9ff9fb4ca4 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/connector-hdmi.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/connector-hdmi.c
@@ -6,11 +6,12 @@
  * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
  */
 
+#include <linux/err.h>
+#include <linux/gpio/consumer.h>
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 
 #include <drm/drm_edid.h>
 
@@ -41,7 +42,7 @@ struct panel_drv_data {
 
 	struct omap_video_timings timings;
 
-	int hpd_gpio;
+	struct gpio_desc *hpd_gpio;
 };
 
 #define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
@@ -155,8 +156,8 @@ static bool hdmic_detect(struct omap_dss_device *dssdev)
 	struct panel_drv_data *ddata = to_panel_data(dssdev);
 	struct omap_dss_device *in = ddata->in;
 
-	if (gpio_is_valid(ddata->hpd_gpio))
-		return gpio_get_value_cansleep(ddata->hpd_gpio);
+	if (ddata->hpd_gpio)
+		return gpiod_get_value_cansleep(ddata->hpd_gpio);
 	else
 		return in->ops.hdmi->detect(in);
 }
@@ -197,31 +198,6 @@ static struct omap_dss_driver hdmic_driver = {
 	.set_hdmi_infoframe	= hdmic_set_infoframe,
 };
 
-static int hdmic_probe_of(struct platform_device *pdev)
-{
-	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
-	struct device_node *node = pdev->dev.of_node;
-	struct omap_dss_device *in;
-	int gpio;
-
-	/* HPD GPIO */
-	gpio = of_get_named_gpio(node, "hpd-gpios", 0);
-	if (gpio_is_valid(gpio))
-		ddata->hpd_gpio = gpio;
-	else
-		ddata->hpd_gpio = -ENODEV;
-
-	in = omapdss_of_find_source_for_first_ep(node);
-	if (IS_ERR(in)) {
-		dev_err(&pdev->dev, "failed to find video source\n");
-		return PTR_ERR(in);
-	}
-
-	ddata->in = in;
-
-	return 0;
-}
-
 static int hdmic_probe(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata;
@@ -238,15 +214,18 @@ static int hdmic_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, ddata);
 	ddata->dev = &pdev->dev;
 
-	r = hdmic_probe_of(pdev);
+	ddata->hpd_gpio = devm_gpiod_get_optional(&pdev->dev, "hpd", GPIOD_IN);
+	r = PTR_ERR_OR_ZERO(ddata->hpd_gpio);
 	if (r)
 		return r;
 
-	if (gpio_is_valid(ddata->hpd_gpio)) {
-		r = devm_gpio_request_one(&pdev->dev, ddata->hpd_gpio,
-				GPIOF_DIR_IN, "hdmi_hpd");
-		if (r)
-			goto err_reg;
+	gpiod_set_consumer_name(ddata->hpd_gpio, "hdmi_hpd");
+
+	ddata->in = omapdss_of_find_source_for_first_ep(pdev->dev.of_node);
+	r = PTR_ERR_OR_ZERO(ddata->in);
+	if (r) {
+		dev_err(&pdev->dev, "failed to find video source\n");
+		return r;
 	}
 
 	ddata->timings = hdmic_default_timings;

From patchwork Fri Nov  4 03:16:31 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031241
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id 210C4C4321E
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:16:59 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S229485AbiKDDQz (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:16:55 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51592 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S230199AbiKDDQw (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:16:52 -0400
Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com
 [IPv6:2607:f8b0:4864:20::535])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D41A2409D;
        Thu,  3 Nov 2022 20:16:51 -0700 (PDT)
Received: by mail-pg1-x535.google.com with SMTP id g129so3322113pgc.7;
        Thu, 03 Nov 2022 20:16:51 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=3MRMByNf7k1ZHiaI3QTdRSrBekgD40L2iROgUZ5uSwA=;
        b=kn5gvq2nrh87nFzuFuY6dVbazF8Hi8NdRiuOx4gRYg9AQWQQHCKmg+d0zVIAOTZV2A
         K7AKz09rqNSqWIMCmU9oocVnb68WUSypRUQhJfemiQNjXhT00i8PQSXHoOnIJlo2uzYf
         Ifn2y6n0eh+yAEanl9UptTp1Y9fSPPL0YAhl4LxY+93uCHhp3s6DJievO+da7EDk54KA
         MUpqT5vgqe05BVh7cg5iKndCll1rguGwXw18OU6EW5xx16j5nkvSh+heZFd4oUpXz59Q
         t96KnAs1iGJ8wn4UEyJEJQb0x1PQ5FSGCNP5LYLtvbn6g+tsaFkxaJD+qKPATtrtYCSB
         NJNw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=3MRMByNf7k1ZHiaI3QTdRSrBekgD40L2iROgUZ5uSwA=;
        b=C4YIaz/zUH2AoATGv0G0k2hH3akSjG7ceMg+vUmyVX3VjDhod/v7cMRoCCCVYrQjsV
         V44T6OFAm6BR2YphVQEj9qlPxr+ewWx+Jh7tg/I9ldL9UlqfXuMT6Xl97SalIReHzr5u
         rBIYM8V9AHoGH/9u8jSlmS6AcLeNlPnK6mHmkaEQaMg0tdSUp3SNtr6VReI2p+1fi08U
         FC0MYsYb3iIoEl6Cb7XV/DsLDLYsWQHDSJoet4N8vVnRq3DnoMknpBrH3t5yPkzPTkMM
         eWUYlz1lM/x9VRHJysVfNCJTASuyktlIMPdB571ekjIDPq3fTV2cReb6QuRPRoL2b3PF
         3zEw==
X-Gm-Message-State: ACrzQf2mcAS9MliBhiBxk9zrIkkFI9/ikaNymIYVK1YGRi7gm4pNYTZZ
        40r5bZz4OL0SE++0nNmOLd4=
X-Google-Smtp-Source: 
 AMsMyM7IsmRWsIkspiRm/ltGOwN2ChryJ7mWpUG6msavi3or+BuI5Jqj9A8llaVwXjJZ7/vvZz65eA==
X-Received: by 2002:a63:5b5c:0:b0:440:8531:d3f6 with SMTP id
 l28-20020a635b5c000000b004408531d3f6mr29507088pgm.114.1667531810656;
        Thu, 03 Nov 2022 20:16:50 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.16.49
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:16:50 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 02/13] omapfb: panel-sony-acx565akm: remove support for
 platform data
Date: Thu,  3 Nov 2022 20:16:31 -0700
Message-Id: <20221103-omapfb-gpiod-v1-2-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

There are no users of panel_acx565akm_platform_data in the mainline
kernel so support for it can be removed from the panel driver.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../omap2/omapfb/displays/panel-sony-acx565akm.c   | 45 +++-------------------
 include/video/omap-panel-data.h                    | 16 --------
 2 files changed, 6 insertions(+), 55 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
index c0965bee12c5..0c81d3ff4197 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
@@ -23,7 +23,6 @@
 #include <linux/of_gpio.h>
 
 #include <video/omapfb_dss.h>
-#include <video/omap-panel-data.h>
 
 #define MIPID_CMD_READ_DISP_ID		0x04
 #define MIPID_CMD_READ_RED		0x06
@@ -688,32 +687,6 @@ static struct omap_dss_driver acx565akm_ops = {
 	.get_resolution	= omapdss_default_get_resolution,
 };
 
-static int acx565akm_probe_pdata(struct spi_device *spi)
-{
-	const struct panel_acx565akm_platform_data *pdata;
-	struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
-	struct omap_dss_device *dssdev, *in;
-
-	pdata = dev_get_platdata(&spi->dev);
-
-	ddata->reset_gpio = pdata->reset_gpio;
-
-	in = omap_dss_find_output(pdata->source);
-	if (in == NULL) {
-		dev_err(&spi->dev, "failed to find video source '%s'\n",
-				pdata->source);
-		return -EPROBE_DEFER;
-	}
-	ddata->in = in;
-
-	ddata->datapairs = pdata->datapairs;
-
-	dssdev = &ddata->dssdev;
-	dssdev->name = pdata->name;
-
-	return 0;
-}
-
 static int acx565akm_probe_of(struct spi_device *spi)
 {
 	struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
@@ -741,6 +714,9 @@ static int acx565akm_probe(struct spi_device *spi)
 
 	dev_dbg(&spi->dev, "%s\n", __func__);
 
+	if (!spi->dev.of_node)
+		return -ENODEV;
+
 	spi->mode = SPI_MODE_3;
 
 	ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL);
@@ -753,18 +729,9 @@ static int acx565akm_probe(struct spi_device *spi)
 
 	mutex_init(&ddata->mutex);
 
-	if (dev_get_platdata(&spi->dev)) {
-		r = acx565akm_probe_pdata(spi);
-		if (r)
-			return r;
-	} else if (spi->dev.of_node) {
-		r = acx565akm_probe_of(spi);
-		if (r)
-			return r;
-	} else {
-		dev_err(&spi->dev, "platform data missing!\n");
-		return -ENODEV;
-	}
+	r = acx565akm_probe_of(spi);
+	if (r)
+		return r;
 
 	if (gpio_is_valid(ddata->reset_gpio)) {
 		r = devm_gpio_request_one(&spi->dev, ddata->reset_gpio,
diff --git a/include/video/omap-panel-data.h b/include/video/omap-panel-data.h
index 42b77249ee14..b7733150b55c 100644
--- a/include/video/omap-panel-data.h
+++ b/include/video/omap-panel-data.h
@@ -52,20 +52,4 @@ struct panel_dpi_platform_data {
 	int enable_gpio;
 };
 
-/**
- * panel_acx565akm platform data
- * @name: name for this display entity
- * @source: name of the display entity used as a video source
- * @reset_gpio: gpio to reset the panel (or -1)
- * @datapairs: number of SDI datapairs
- */
-struct panel_acx565akm_platform_data {
-	const char *name;
-	const char *source;
-
-	int reset_gpio;
-
-	int datapairs;
-};
-
 #endif /* __OMAP_PANEL_DATA_H */

From patchwork Fri Nov  4 03:16:32 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031243
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id 262FFC4167B
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:17:04 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S230504AbiKDDRB (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:17:01 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51640 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S230333AbiKDDQz (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:16:55 -0400
Received: from mail-pf1-x42a.google.com (mail-pf1-x42a.google.com
 [IPv6:2607:f8b0:4864:20::42a])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4CC8C20186;
        Thu,  3 Nov 2022 20:16:53 -0700 (PDT)
Received: by mail-pf1-x42a.google.com with SMTP id b185so3388870pfb.9;
        Thu, 03 Nov 2022 20:16:53 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=WJ4K4KM6k2CEMbYDdflp8ef3L5pfloTxSXh3e5bS5/U=;
        b=mMQlwS66ofHJZcvmNsBsP56KBfkZqf7bHVWZj5b3L3LwPXH3euCSEKqDgemjDI3qS5
         XduOuI6an41I1Ag8zzdIcXbKvpf2RtApKU5PUvblvfHX3aTGe/SSkLkeA6ZgpkxfYst2
         809l5GzXUbv7o55qkWSmaYv3GcrGlR7XDDh5vU8pnAhgPdRky6olkW4az16LiKYx2STM
         GOgbyXjP988tOfK7Ln7OTkwtW6wvCKxHphVZ1FN1SinsF0ao2rl60Zbz8Brg3gzkumuk
         3q4jY+FC1EbOO3SYcJ1q/whOJcTSWe3VIKoVKSwt5/5wG/xxjUYneEJSqxgbMpq4TfWR
         7ebg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=WJ4K4KM6k2CEMbYDdflp8ef3L5pfloTxSXh3e5bS5/U=;
        b=jmXVh6BGHyl4BYPW+SNVWNCW2uEzBTwL3bWs2B0bCltaBQGD5BlRu3McHEnFof6wEB
         nH+tzB/pGedD25wmM95eaTmJPtUXgUU+CytusfyvgusoqgN3eOMvXva5xG6e7r4FdfUx
         NS5EZRA9kGIgJRqRYf8sASULllzuPe40ruR/St2yOQ/HpcxDEflwQIZxK82g2vIqL8eR
         W5bu1oB0PrhMMZ939hvCoZYIUhLBCuH2y5Cti+mvTWDYnCpQf1oFwwpaR0JceVsgU5Oe
         ssmC0o5JccL0feSd3OphzydVkqQtwnx8Cd8gUMftNv513AyMv994/fEDL8dfZkucOOGz
         Ptxg==
X-Gm-Message-State: ACrzQf0CDHWZyDOxw4CyD4URhmnjS5YvduIv2Q7OoHyKGmP/fQRbOYed
        qpEDbB/Zw6Xh8GeS418UnwY=
X-Google-Smtp-Source: 
 AMsMyM4tchCPdVlZQyBRBeNJnG09oNWvtbTca0XeFQFyyUv2O+/6FdhrdvkLkDekDvUuATI77sSEdQ==
X-Received: by 2002:a63:354e:0:b0:439:837:692f with SMTP id
 c75-20020a63354e000000b004390837692fmr29007595pga.74.1667531812631;
        Thu, 03 Nov 2022 20:16:52 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.16.50
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:16:51 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 03/13] omapfb: panel-sony-acx565akm: switch to using
 gpiod API
Date: Thu,  3 Nov 2022 20:16:32 -0700
Message-Id: <20221103-omapfb-gpiod-v1-3-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.

Note that because existing DTSes specify incorrect polarity of reset
lines (active high) and GPU drivers have adopted to this, we follow
the suit and use inverted values when controlling reset lines.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../omap2/omapfb/displays/panel-sony-acx565akm.c   | 66 ++++++++++------------
 1 file changed, 31 insertions(+), 35 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
index 0c81d3ff4197..685c63aa4e03 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
@@ -18,9 +18,8 @@
 #include <linux/sched.h>
 #include <linux/backlight.h>
 #include <linux/fb.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 
 #include <video/omapfb_dss.h>
 
@@ -56,7 +55,8 @@ struct panel_drv_data {
 	struct omap_dss_device	dssdev;
 	struct omap_dss_device *in;
 
-	int reset_gpio;
+	struct gpio_desc *reset_gpio;
+
 	int datapairs;
 
 	struct omap_video_timings videomode;
@@ -545,8 +545,13 @@ static int acx565akm_panel_power_on(struct omap_dss_device *dssdev)
 	/*FIXME tweak me */
 	msleep(50);
 
-	if (gpio_is_valid(ddata->reset_gpio))
-		gpio_set_value(ddata->reset_gpio, 1);
+	/*
+	 * Note that we appear to activate the reset line here. However
+	 * existing DTSes specified incorrect polarity for it (active high),
+	 * so in fact this deasserts the reset line.
+	 */
+	if (ddata->reset_gpio)
+		gpiod_set_value_cansleep(ddata->reset_gpio, 1);
 
 	if (ddata->enabled) {
 		dev_dbg(&ddata->spi->dev, "panel already enabled\n");
@@ -595,8 +600,9 @@ static void acx565akm_panel_power_off(struct omap_dss_device *dssdev)
 	 */
 	msleep(50);
 
-	if (gpio_is_valid(ddata->reset_gpio))
-		gpio_set_value(ddata->reset_gpio, 0);
+	/* see comment in acx565akm_panel_power_on() */
+	if (ddata->reset_gpio)
+		gpiod_set_value_cansleep(ddata->reset_gpio, 0);
 
 	/* FIXME need to tweak this delay */
 	msleep(100);
@@ -687,22 +693,6 @@ static struct omap_dss_driver acx565akm_ops = {
 	.get_resolution	= omapdss_default_get_resolution,
 };
 
-static int acx565akm_probe_of(struct spi_device *spi)
-{
-	struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
-	struct device_node *np = spi->dev.of_node;
-
-	ddata->reset_gpio = of_get_named_gpio(np, "reset-gpios", 0);
-
-	ddata->in = omapdss_of_find_source_for_first_ep(np);
-	if (IS_ERR(ddata->in)) {
-		dev_err(&spi->dev, "failed to find video source\n");
-		return PTR_ERR(ddata->in);
-	}
-
-	return 0;
-}
-
 static int acx565akm_probe(struct spi_device *spi)
 {
 	struct panel_drv_data *ddata;
@@ -729,19 +719,25 @@ static int acx565akm_probe(struct spi_device *spi)
 
 	mutex_init(&ddata->mutex);
 
-	r = acx565akm_probe_of(spi);
-	if (r)
+	ddata->in = omapdss_of_find_source_for_first_ep(spi->dev.of_node);
+	r = PTR_ERR_OR_ZERO(ddata->in);
+	if (r) {
+		dev_err(&spi->dev, "failed to find video source\n");
 		return r;
-
-	if (gpio_is_valid(ddata->reset_gpio)) {
-		r = devm_gpio_request_one(&spi->dev, ddata->reset_gpio,
-				GPIOF_OUT_INIT_LOW, "lcd reset");
-		if (r)
-			goto err_gpio;
 	}
 
-	if (gpio_is_valid(ddata->reset_gpio))
-		gpio_set_value(ddata->reset_gpio, 1);
+	ddata->reset_gpio = devm_gpiod_get_optional(&spi->dev, "reset",
+						    GPIOD_OUT_LOW);
+	r = PTR_ERR_OR_ZERO(ddata->reset_gpio);
+	if (r)
+		goto err_gpio;
+
+	if (ddata->reset_gpio) {
+		gpiod_set_consumer_name(ddata->reset_gpio, "lcd reset");
+
+		/* release the reset line */
+		gpiod_set_value_cansleep(ddata->reset_gpio, 1);
+	}
 
 	/*
 	 * After reset we have to wait 5 msec before the first
@@ -753,8 +749,8 @@ static int acx565akm_probe(struct spi_device *spi)
 
 	r = panel_detect(ddata);
 
-	if (!ddata->enabled && gpio_is_valid(ddata->reset_gpio))
-		gpio_set_value(ddata->reset_gpio, 0);
+	if (!ddata->enabled && ddata->reset_gpio)
+		gpiod_set_value_cansleep(ddata->reset_gpio, 0);
 
 	if (r) {
 		dev_err(&spi->dev, "%s panel detect error\n", __func__);

From patchwork Fri Nov  4 03:16:33 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031242
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id A8DD0C43217
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:17:02 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S229523AbiKDDQ7 (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:16:59 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51642 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S229481AbiKDDQz (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:16:55 -0400
Received: from mail-pf1-x430.google.com (mail-pf1-x430.google.com
 [IPv6:2607:f8b0:4864:20::430])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04C3125E81;
        Thu,  3 Nov 2022 20:16:55 -0700 (PDT)
Received: by mail-pf1-x430.google.com with SMTP id q9so3401351pfg.5;
        Thu, 03 Nov 2022 20:16:54 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=vESVsop4ZB+nxJMme9WqcQCG5NESqBZw6q6kC1WMIIw=;
        b=PZKdhoMLbT0Q3wcy5njb/+FOYlfWcqBjMzdoeLUeT8U5lV7KYOXsQiPt9Wj03zExMH
         vtBa9/PDAvfkik0KWRk0NEISIji91MpaRtHCekvMaGIlmVk05bBQr/cu6yb5HPZNCtAo
         y9vmjpRjg6PqjyBXReyMeKa4P6I1jVx397kWHUBrpfXeHPCVBOfnayoqjV9PsO4pKyvV
         nSN1Ey2unqmR25h5BAk2DwUdIWJwK0UpSKScksxLWI/JJUA+gtLONsgY9dh5ug91AgBl
         kUYqPZ4aKoUGvIZw0CJ7Wam9Yv2BgpWicqW0UvaTDXO5yf1+77D1R79HAZtM/lub/zpH
         Dihg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=vESVsop4ZB+nxJMme9WqcQCG5NESqBZw6q6kC1WMIIw=;
        b=uaNGuv0kCueUDyzXQZehYBzfpTnPi8wqe0Ey1AjFQPsvgtZe/oyu9Kv/bCXdpCDTq5
         HNDuv5pjeIEiBtiFvJle4y5X5CzmyRqw/lm2Ubj6i1bJtsJHCPhZndLOyNE1iFMM2qCS
         P5S2wnspocCc1s1m0qM7bEf/VNpph898nxSGN02oU1OPPpq9t9kc+uJxHvCUbtq5Fh3l
         03ENcSC7hze7cEB/IJriPgLwSfNLoB9IIjwoaNiWBsAHwpF3vcA/M5vblVhoZw+YH7K1
         uEQTAsxABflJ7eDZoAluqYzv6LZkb6HJBinJ9fv7GxLRa0p1yAV3EkUbq5hYBsKF/M+3
         B7VQ==
X-Gm-Message-State: ACrzQf3PTmgdlqAMd/SbVffsTBkIe+erRT24Km2/JjZTtSVNhJRT2sCR
        2cdWvCqMZU2OtLeSVLiypIs=
X-Google-Smtp-Source: 
 AMsMyM6WTIZNRWCJ/EFiNOK59q4zh1HTLYptlZ44M+of4zld3TkEXXJt5pFrkW6rUJ77EohOyw+8pg==
X-Received: by 2002:a63:fc0b:0:b0:46f:87a8:97aa with SMTP id
 j11-20020a63fc0b000000b0046f87a897aamr27223139pgi.234.1667531814293;
        Thu, 03 Nov 2022 20:16:54 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.16.52
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:16:53 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 04/13] omapfb: encoder-tfp410: switch to using gpiod
 API
Date: Thu,  3 Nov 2022 20:16:33 -0700
Message-Id: <20221103-omapfb-gpiod-v1-4-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../fbdev/omap2/omapfb/displays/encoder-tfp410.c   | 67 +++++++---------------
 1 file changed, 22 insertions(+), 45 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/encoder-tfp410.c b/drivers/video/fbdev/omap2/omapfb/displays/encoder-tfp410.c
index 09a59bd93d61..7bac420169a6 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/encoder-tfp410.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/encoder-tfp410.c
@@ -6,11 +6,12 @@
  * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
  */
 
-#include <linux/gpio.h>
+#include <linux/err.h>
+#include <linux/gpio/consumer.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
-#include <linux/of_gpio.h>
 
 #include <video/omapfb_dss.h>
 
@@ -18,7 +19,8 @@ struct panel_drv_data {
 	struct omap_dss_device dssdev;
 	struct omap_dss_device *in;
 
-	int pd_gpio;
+	struct gpio_desc *pd_gpio;
+
 	int data_lines;
 
 	struct omap_video_timings timings;
@@ -86,8 +88,8 @@ static int tfp410_enable(struct omap_dss_device *dssdev)
 	if (r)
 		return r;
 
-	if (gpio_is_valid(ddata->pd_gpio))
-		gpio_set_value_cansleep(ddata->pd_gpio, 1);
+	if (ddata->pd_gpio)
+		gpiod_set_value_cansleep(ddata->pd_gpio, 0);
 
 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 
@@ -102,8 +104,8 @@ static void tfp410_disable(struct omap_dss_device *dssdev)
 	if (!omapdss_device_is_enabled(dssdev))
 		return;
 
-	if (gpio_is_valid(ddata->pd_gpio))
-		gpio_set_value_cansleep(ddata->pd_gpio, 0);
+	if (ddata->pd_gpio)
+		gpiod_set_value_cansleep(ddata->pd_gpio, 1);
 
 	in->ops.dpi->disable(in);
 
@@ -162,33 +164,6 @@ static const struct omapdss_dvi_ops tfp410_dvi_ops = {
 	.get_timings	= tfp410_get_timings,
 };
 
-static int tfp410_probe_of(struct platform_device *pdev)
-{
-	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
-	struct device_node *node = pdev->dev.of_node;
-	struct omap_dss_device *in;
-	int gpio;
-
-	gpio = of_get_named_gpio(node, "powerdown-gpios", 0);
-
-	if (gpio_is_valid(gpio) || gpio == -ENOENT) {
-		ddata->pd_gpio = gpio;
-	} else {
-		dev_err(&pdev->dev, "failed to parse PD gpio\n");
-		return gpio;
-	}
-
-	in = omapdss_of_find_source_for_first_ep(node);
-	if (IS_ERR(in)) {
-		dev_err(&pdev->dev, "failed to find video source\n");
-		return PTR_ERR(in);
-	}
-
-	ddata->in = in;
-
-	return 0;
-}
-
 static int tfp410_probe(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata;
@@ -204,18 +179,21 @@ static int tfp410_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, ddata);
 
-	r = tfp410_probe_of(pdev);
-	if (r)
+	ddata->pd_gpio = devm_gpiod_get_optional(&pdev->dev, "powerdown",
+						 GPIOD_OUT_HIGH);
+	r = PTR_ERR_OR_ZERO(ddata->pd_gpio);
+	if (r) {
+		dev_err(&pdev->dev, "Failed to request PD GPIO: %d\n", r);
 		return r;
+	}
+
+	gpiod_set_consumer_name(ddata->pd_gpio, "tfp410 PD");
 
-	if (gpio_is_valid(ddata->pd_gpio)) {
-		r = devm_gpio_request_one(&pdev->dev, ddata->pd_gpio,
-				GPIOF_OUT_INIT_LOW, "tfp410 PD");
-		if (r) {
-			dev_err(&pdev->dev, "Failed to request PD GPIO %d\n",
-					ddata->pd_gpio);
-			goto err_gpio;
-		}
+	ddata->in = omapdss_of_find_source_for_first_ep(pdev->dev.of_node);
+	r = PTR_ERR_OR_ZERO(ddata->in);
+	if (r) {
+		dev_err(&pdev->dev, "failed to find video source: %d\n", r);
+		return r;
 	}
 
 	dssdev = &ddata->dssdev;
@@ -235,7 +213,6 @@ static int tfp410_probe(struct platform_device *pdev)
 
 	return 0;
 err_reg:
-err_gpio:
 	omap_dss_put_device(ddata->in);
 	return r;
 }

From patchwork Fri Nov  4 03:16:34 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031244
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id 95913C4332F
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:17:05 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S230324AbiKDDRD (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:17:03 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51678 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S230454AbiKDDQ5 (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:16:57 -0400
Received: from mail-pf1-x429.google.com (mail-pf1-x429.google.com
 [IPv6:2607:f8b0:4864:20::429])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B0DD425E81;
        Thu,  3 Nov 2022 20:16:56 -0700 (PDT)
Received: by mail-pf1-x429.google.com with SMTP id m6so3438504pfb.0;
        Thu, 03 Nov 2022 20:16:56 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=UItxGURK2IWBPodZslO/5iOxzR4E/6ECTXeRpXj97vc=;
        b=iDakzKYz+aWZYq0N74jKELocugR9OvbSUEKD0dbYXCmoGzGAjgcd/X9sADn9VX/Dgu
         atSBHdnI1zjuM8ccj0Lwf6bXqsPmzD24XUzNIonUjLZC9vXKBzFZs4JjcmmFYNWVWkoh
         BkYz0On3kCRw8I7Q8ggFbyxdO5AY/9zeF0OMKZEkM+JAF39J3pxxZdBImvTMPl9IDb/M
         tej/8AjSa9gk91J4i+rGwcUtged+I2aOKdqiBkoy7w1drg1iBE9ixeAG3nrEoAOelAS4
         CgY+7zc5aifHWxNh+JRuAkiKE52wm3BpceM7HZhZ/E8nt1hrziloo03bk2Y2ZIfKnKU9
         zcYw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=UItxGURK2IWBPodZslO/5iOxzR4E/6ECTXeRpXj97vc=;
        b=EeqyZ7jJ8TgKhk3CGOlI5n+oAIisvH/1zxkMseJwNINsX9ruA69CxN9tVKirIyRNKw
         UrKu2A7HICGRlThlwIlfV9OxuYnIEDwzMpIU/jGKyVd1u3y3SbXRya+gjNvpB9FdcxgN
         6Zw0JltldLWZWF0rUFKM0zEwPtd7B6ymYNrQgPlWrTFx7ys4YvdjKXSFzcpzI1j2gntT
         krnla+UMB/HealgeK17Y5HmG02VqKylG4t/0FzxR/rGc4X/mLPYAQlELShT2SmbrejbU
         I9YniqLs7VHogg+5Um85W055f9+INGvlGaq0r1fCgEHna1o/4ulgBHW0BqxvqbsShtQ7
         zzug==
X-Gm-Message-State: ACrzQf1UOAvfIIsQrbL6f3WfFrWKezILmGm1NBzK4zG3x2sWBYJ20T5f
        C79HRWRrryJkX+c3hzpf30s=
X-Google-Smtp-Source: 
 AMsMyM6bE29ZIw4j5NSem5ZSWRJazSteEBF8mWl97xkNqMaBnn9xFJXKKPCjm4AP9Jw0kGIhkl6FHw==
X-Received: by 2002:a65:6951:0:b0:42b:b13:b253 with SMTP id
 w17-20020a656951000000b0042b0b13b253mr29642379pgq.555.1667531816013;
        Thu, 03 Nov 2022 20:16:56 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.16.54
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:16:55 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 05/13] omapfb: panel-dsi-cm: switch to using gpiod API
Date: Thu,  3 Nov 2022 20:16:34 -0700
Message-Id: <20221103-omapfb-gpiod-v1-5-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.

Note that because existing DTSes specify incorrect polarity of reset
lines (active high) and GPU drivers have adopted to this, we follow
the suit and use inverted values when controlling reset lines.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../fbdev/omap2/omapfb/displays/panel-dsi-cm.c     | 116 ++++++++-------------
 1 file changed, 45 insertions(+), 71 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
index a2c7c5cb1523..4fc4b26a8d30 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
@@ -10,8 +10,9 @@
 
 #include <linux/backlight.h>
 #include <linux/delay.h>
+#include <linux/err.h>
 #include <linux/fb.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/interrupt.h>
 #include <linux/jiffies.h>
 #include <linux/module.h>
@@ -20,7 +21,6 @@
 #include <linux/slab.h>
 #include <linux/workqueue.h>
 #include <linux/of_device.h>
-#include <linux/of_gpio.h>
 
 #include <video/omapfb_dss.h>
 #include <video/mipi_display.h>
@@ -53,8 +53,8 @@ struct panel_drv_data {
 	unsigned long	hw_guard_wait;	/* max guard time in jiffies */
 
 	/* panel HW configuration from DT or platform data */
-	int reset_gpio;
-	int ext_te_gpio;
+	struct gpio_desc *reset_gpio;
+	struct gpio_desc *ext_te_gpio;
 
 	bool use_dsi_backlight;
 
@@ -250,8 +250,8 @@ static int dsicm_enter_ulps(struct panel_drv_data *ddata)
 	if (r)
 		goto err;
 
-	if (gpio_is_valid(ddata->ext_te_gpio))
-		disable_irq(gpio_to_irq(ddata->ext_te_gpio));
+	if (ddata->ext_te_gpio)
+		disable_irq(gpiod_to_irq(ddata->ext_te_gpio));
 
 	in->ops.dsi->disable(in, false, true);
 
@@ -292,8 +292,8 @@ static int dsicm_exit_ulps(struct panel_drv_data *ddata)
 		goto err2;
 	}
 
-	if (gpio_is_valid(ddata->ext_te_gpio))
-		enable_irq(gpio_to_irq(ddata->ext_te_gpio));
+	if (ddata->ext_te_gpio)
+		enable_irq(gpiod_to_irq(ddata->ext_te_gpio));
 
 	dsicm_queue_ulps_work(ddata);
 
@@ -306,8 +306,8 @@ static int dsicm_exit_ulps(struct panel_drv_data *ddata)
 
 	r = dsicm_panel_reset(ddata);
 	if (!r) {
-		if (gpio_is_valid(ddata->ext_te_gpio))
-			enable_irq(gpio_to_irq(ddata->ext_te_gpio));
+		if (ddata->ext_te_gpio)
+			enable_irq(gpiod_to_irq(ddata->ext_te_gpio));
 		ddata->ulps_enabled = false;
 	}
 err1:
@@ -556,16 +556,19 @@ static const struct attribute_group dsicm_attr_group = {
 
 static void dsicm_hw_reset(struct panel_drv_data *ddata)
 {
-	if (!gpio_is_valid(ddata->reset_gpio))
-		return;
-
-	gpio_set_value(ddata->reset_gpio, 1);
+	/*
+	 * Note that we appear to activate the reset line here. However
+	 * existing DTSes specified incorrect polarity for it (active high),
+	 * so in fact this deasserts the reset line.
+	 */
+	gpiod_set_value_cansleep(ddata->reset_gpio, 1);
 	udelay(10);
 	/* reset the panel */
-	gpio_set_value(ddata->reset_gpio, 0);
-	/* assert reset */
+	gpiod_set_value_cansleep(ddata->reset_gpio, 0);
+	/* keep reset asserted */
 	udelay(10);
-	gpio_set_value(ddata->reset_gpio, 1);
+	/* release reset line */
+	gpiod_set_value_cansleep(ddata->reset_gpio, 1);
 	/* wait after releasing reset */
 	usleep_range(5000, 10000);
 }
@@ -886,7 +889,7 @@ static int dsicm_update(struct omap_dss_device *dssdev,
 	if (r)
 		goto err;
 
-	if (ddata->te_enabled && gpio_is_valid(ddata->ext_te_gpio)) {
+	if (ddata->te_enabled && ddata->ext_te_gpio) {
 		schedule_delayed_work(&ddata->te_timeout_work,
 				msecs_to_jiffies(250));
 		atomic_set(&ddata->do_update, 1);
@@ -933,7 +936,7 @@ static int _dsicm_enable_te(struct panel_drv_data *ddata, bool enable)
 	else
 		r = dsicm_dcs_write_0(ddata, MIPI_DCS_SET_TEAR_OFF);
 
-	if (!gpio_is_valid(ddata->ext_te_gpio))
+	if (!ddata->ext_te_gpio)
 		in->ops.dsi->enable_te(in, enable);
 
 	/* possible panel bug */
@@ -1115,41 +1118,6 @@ static struct omap_dss_driver dsicm_ops = {
 	.memory_read	= dsicm_memory_read,
 };
 
-static int dsicm_probe_of(struct platform_device *pdev)
-{
-	struct device_node *node = pdev->dev.of_node;
-	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
-	struct omap_dss_device *in;
-	int gpio;
-
-	gpio = of_get_named_gpio(node, "reset-gpios", 0);
-	if (!gpio_is_valid(gpio)) {
-		dev_err(&pdev->dev, "failed to parse reset gpio\n");
-		return gpio;
-	}
-	ddata->reset_gpio = gpio;
-
-	gpio = of_get_named_gpio(node, "te-gpios", 0);
-	if (gpio_is_valid(gpio) || gpio == -ENOENT) {
-		ddata->ext_te_gpio = gpio;
-	} else {
-		dev_err(&pdev->dev, "failed to parse TE gpio\n");
-		return gpio;
-	}
-
-	in = omapdss_of_find_source_for_first_ep(node);
-	if (IS_ERR(in)) {
-		dev_err(&pdev->dev, "failed to find video source\n");
-		return PTR_ERR(in);
-	}
-
-	ddata->in = in;
-
-	/* TODO: ulps, backlight */
-
-	return 0;
-}
-
 static int dsicm_probe(struct platform_device *pdev)
 {
 	struct backlight_properties props;
@@ -1171,9 +1139,12 @@ static int dsicm_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, ddata);
 	ddata->pdev = pdev;
 
-	r = dsicm_probe_of(pdev);
-	if (r)
+	ddata->in = omapdss_of_find_source_for_first_ep(pdev->dev.of_node);
+	r = PTR_ERR_OR_ZERO(ddata->in);
+	if (r) {
+		dev_err(&pdev->dev, "failed to find video source: %d\n", r);
 		return r;
+	}
 
 	ddata->timings.x_res = 864;
 	ddata->timings.y_res = 480;
@@ -1200,24 +1171,27 @@ static int dsicm_probe(struct platform_device *pdev)
 
 	atomic_set(&ddata->do_update, 0);
 
-	if (gpio_is_valid(ddata->reset_gpio)) {
-		r = devm_gpio_request_one(dev, ddata->reset_gpio,
-				GPIOF_OUT_INIT_LOW, "taal rst");
-		if (r) {
-			dev_err(dev, "failed to request reset gpio\n");
-			return r;
-		}
+	ddata->reset_gpio = devm_gpiod_get(&pdev->dev, "reset", GPIOD_OUT_LOW);
+	r = PTR_ERR_OR_ZERO(ddata->reset_gpio);
+	if (r) {
+		dev_err(&pdev->dev, "Failed to request reset gpio: %d\n", r);
+		return r;
 	}
 
-	if (gpio_is_valid(ddata->ext_te_gpio)) {
-		r = devm_gpio_request_one(dev, ddata->ext_te_gpio,
-				GPIOF_IN, "taal irq");
-		if (r) {
-			dev_err(dev, "GPIO request failed\n");
-			return r;
-		}
+	gpiod_set_consumer_name(ddata->reset_gpio, "taal rst");
+
+	ddata->ext_te_gpio = devm_gpiod_get_optional(&pdev->dev, "te",
+						     GPIOD_IN);
+	r = PTR_ERR_OR_ZERO(ddata->ext_te_gpio);
+	if (r) {
+		dev_err(&pdev->dev, "Failed to request TE gpio: %d\n", r);
+		return r;
+	}
+
+	if (ddata->ext_te_gpio) {
+		gpiod_set_consumer_name(ddata->ext_te_gpio, "taal irq");
 
-		r = devm_request_irq(dev, gpio_to_irq(ddata->ext_te_gpio),
+		r = devm_request_irq(dev, gpiod_to_irq(ddata->ext_te_gpio),
 				dsicm_te_isr,
 				IRQF_TRIGGER_RISING,
 				"taal vsync", ddata);

From patchwork Fri Nov  4 03:16:35 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031245
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id B7D3EC4332F
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:17:32 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S231238AbiKDDR3 (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:17:29 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51662 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S229750AbiKDDQ7 (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:16:59 -0400
Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com
 [IPv6:2607:f8b0:4864:20::1031])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E02025E80;
        Thu,  3 Nov 2022 20:16:58 -0700 (PDT)
Received: by mail-pj1-x1031.google.com with SMTP id
 m6-20020a17090a5a4600b00212f8dffec9so3596204pji.0;
        Thu, 03 Nov 2022 20:16:58 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=4mrkRiLGHBiE1WHjFsF1gLPe7uFBZgJGqIAjNRZoVoo=;
        b=HkmrYXxWTyDe3g96JnmaUm43+QWhwNHxqNuW1/I53yJBWjfdFg6tvChe11ViISD+th
         f1KD1mHiHtzeyY0SGYHVkgByA9Qu1wk55aU7XIWLX997wlvb8NBYn/SZfPA5x64+uAVK
         TJ6JYA+U6KssA4iXGyYmMqurbDZ6xxe3LMFsk4Bd6DvCihdgHjz6EnTGR/RvHpvHAYhj
         tm3vYT3jGj7/Klj85cVy6nxUHh+KkIFNz/52yLVZQz88FmX8Fj/8nSarRF6Hyw9GmPe/
         UBtmgLM+/K2ONJDypvCkOcGSZlaXwytal9/UdjA/sdmPrpHgju/Zs5MhvBDchAbrqZ2t
         63+Q==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=4mrkRiLGHBiE1WHjFsF1gLPe7uFBZgJGqIAjNRZoVoo=;
        b=pdLzrPaWOylAthwj1BVgEFxNoxEO8Zr5O7S6mpXavfvPJx25ISumcifbus4a9z2+62
         rUjx1g4pVyxHSixAvBVF9Lx94Y7snVTVpKo1M5rKn9t7/sxJ3c7AaG/UUBw0EXTM2WWk
         7FfnNZ3MNGZ47PJlKT2VA1DWRxQNCH6KAJXjAEtC+rW8K0KLIPJah1bQSPtIjousMFtY
         7SQy3pXBKkhWwi218U3f1anxTxSjME0sjhuQGZcgfvR1U1oqFN6+MAE7ZwbYeMlR2Pha
         ktf1utV4WUSZDh0CRneksiN/zTemGRWRDT4+ekAYyHZItBy2mIaaiV8a05KTRYQ+w+OD
         ALyQ==
X-Gm-Message-State: ACrzQf3Hh3JFjj3/v1+2aXdDVCuGEpGfroc7+TtoFtaGqk8TDkG2fjkx
        5VFibTcbFM2H6C62U5McL0fkoG2QATs=
X-Google-Smtp-Source: 
 AMsMyM4n8mGr5V6pgTAUmvZgtgumGTiK5TrIBLSBz3rNrwlVjJVeDMKcZ7Lsb7T8Nmu6uvOpV2jXDQ==
X-Received: by 2002:a17:90b:1982:b0:212:fe7f:4a49 with SMTP id
 mv2-20020a17090b198200b00212fe7f4a49mr52155514pjb.156.1667531817811;
        Thu, 03 Nov 2022 20:16:57 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.16.56
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:16:57 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 06/13] omapfb: panel-tpo-td043mtea1: switch to using
 gpiod API
Date: Thu,  3 Nov 2022 20:16:35 -0700
Message-Id: <20221103-omapfb-gpiod-v1-6-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../omap2/omapfb/displays/panel-tpo-td043mtea1.c   | 59 ++++++----------------
 1 file changed, 16 insertions(+), 43 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
index c0e4e0315b6b..1eaa35c27835 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
@@ -10,10 +10,9 @@
 #include <linux/delay.h>
 #include <linux/spi/spi.h>
 #include <linux/regulator/consumer.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/err.h>
 #include <linux/slab.h>
-#include <linux/of_gpio.h>
 
 #include <video/omapfb_dss.h>
 
@@ -58,7 +57,7 @@ struct panel_drv_data {
 
 	struct spi_device *spi;
 	struct regulator *vcc_reg;
-	int nreset_gpio;
+	struct gpio_desc *reset_gpio;
 	u16 gamma[12];
 	u32 mode;
 	u32 hmirror:1;
@@ -296,8 +295,7 @@ static int tpo_td043_power_on(struct panel_drv_data *ddata)
 	/* wait for panel to stabilize */
 	msleep(160);
 
-	if (gpio_is_valid(ddata->nreset_gpio))
-		gpio_set_value(ddata->nreset_gpio, 1);
+	gpiod_set_value_cansleep(ddata->reset_gpio, 0);
 
 	tpo_td043_write(ddata->spi, 2,
 			TPO_R02_MODE(ddata->mode) | TPO_R02_NCLK_RISING);
@@ -320,8 +318,7 @@ static void tpo_td043_power_off(struct panel_drv_data *ddata)
 	tpo_td043_write(ddata->spi, 3,
 			TPO_R03_VAL_STANDBY | TPO_R03_EN_PWM);
 
-	if (gpio_is_valid(ddata->nreset_gpio))
-		gpio_set_value(ddata->nreset_gpio, 0);
+	gpiod_set_value_cansleep(ddata->reset_gpio, 1);
 
 	/* wait for at least 2 vsyncs before cutting off power */
 	msleep(50);
@@ -454,32 +451,6 @@ static struct omap_dss_driver tpo_td043_ops = {
 	.get_resolution	= omapdss_default_get_resolution,
 };
 
-
-static int tpo_td043_probe_of(struct spi_device *spi)
-{
-	struct device_node *node = spi->dev.of_node;
-	struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
-	struct omap_dss_device *in;
-	int gpio;
-
-	gpio = of_get_named_gpio(node, "reset-gpios", 0);
-	if (!gpio_is_valid(gpio)) {
-		dev_err(&spi->dev, "failed to parse enable gpio\n");
-		return gpio;
-	}
-	ddata->nreset_gpio = gpio;
-
-	in = omapdss_of_find_source_for_first_ep(node);
-	if (IS_ERR(in)) {
-		dev_err(&spi->dev, "failed to find video source\n");
-		return PTR_ERR(in);
-	}
-
-	ddata->in = in;
-
-	return 0;
-}
-
 static int tpo_td043_probe(struct spi_device *spi)
 {
 	struct panel_drv_data *ddata;
@@ -508,9 +479,12 @@ static int tpo_td043_probe(struct spi_device *spi)
 
 	ddata->spi = spi;
 
-	r = tpo_td043_probe_of(spi);
-	if (r)
+	ddata->in = omapdss_of_find_source_for_first_ep(spi->dev.of_node);
+	r = PTR_ERR_OR_ZERO(ddata->in);
+	if (r) {
+		dev_err(&spi->dev, "failed to find video source: %d\n", r);
 		return r;
+	}
 
 	ddata->mode = TPO_R02_MODE_800x480;
 	memcpy(ddata->gamma, tpo_td043_def_gamma, sizeof(ddata->gamma));
@@ -521,16 +495,15 @@ static int tpo_td043_probe(struct spi_device *spi)
 		goto err_regulator;
 	}
 
-	if (gpio_is_valid(ddata->nreset_gpio)) {
-		r = devm_gpio_request_one(&spi->dev,
-				ddata->nreset_gpio, GPIOF_OUT_INIT_LOW,
-				"lcd reset");
-		if (r < 0) {
-			dev_err(&spi->dev, "couldn't request reset GPIO\n");
-			goto err_gpio_req;
-		}
+	ddata->reset_gpio = devm_gpiod_get(&spi->dev, "reset", GPIOD_OUT_HIGH);
+	r = PTR_ERR_OR_ZERO(ddata->reset_gpio);
+	if (r) {
+		dev_err(&spi->dev, "couldn't request reset GPIO\n");
+		goto err_gpio_req;
 	}
 
+	gpiod_set_consumer_name(ddata->reset_gpio, "lcd reset");
+
 	r = sysfs_create_group(&spi->dev.kobj, &tpo_td043_attr_group);
 	if (r) {
 		dev_err(&spi->dev, "failed to create sysfs files\n");

From patchwork Fri Nov  4 03:16:36 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031246
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id A9028C4332F
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:17:35 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S230005AbiKDDRc (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:17:32 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51768 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S230511AbiKDDRB (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:17:01 -0400
Received: from mail-pf1-x42b.google.com (mail-pf1-x42b.google.com
 [IPv6:2607:f8b0:4864:20::42b])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 392B725E91;
        Thu,  3 Nov 2022 20:17:00 -0700 (PDT)
Received: by mail-pf1-x42b.google.com with SMTP id i3so3376327pfc.11;
        Thu, 03 Nov 2022 20:17:00 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=nekMKek88OrPUkYJ4VB8OmAAcdm9+OSYr1boF1eblE0=;
        b=oPYniO1MtADtJtuw4q4+C20hdzvodf6jSrPaX3J9tWE9wbkPGVDQeExemFb+FhE0/x
         h86dPAwa3MqkgKsCjfvra8knhjsbtHsa1EVMrFS+egrOi/ZYv0A/Zeorm40BXXHsfgyo
         MFifWX4YicxVyj6KbftzPWM9+gwEpnLd++s1w5jKCSVvQSIXC0dMAnl7P/xDanNHcJon
         Lhfwx1syQS+XZY1CBvg4E9HkddvJvXPO4f9aoZF4RB2PY/lV+eiQaO9k1hnWiA2ldYhQ
         g102yHZvQ5Ff8Ptv7Xwb0pZdS8hBWUrX4TuSMDQ4dcEOEIfrqkWCWRF2hd365tHI7Kte
         CSqQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=nekMKek88OrPUkYJ4VB8OmAAcdm9+OSYr1boF1eblE0=;
        b=l7OUjsEZPhsuq9FMWrVKLPle6GfAx1wWWDvwFXqPbGp1ZA3HIoKSKok+7xvzXGfu7z
         JXWwVj7hDAROaIFu8lySiIvKPJzBCYNHUANAS2FWo3HpJBHIe0UkXgc1skVtd+spiLBt
         T6Fe2bzQIhB7preRhps+cwjd0wgJeY40c9BoszSd8INZuoMDm06LN30l7sW1v3ZzOMQ9
         FXCspZxKaxXNDY4Hok1hgkEqSgUXEyO1T3NlSiprCodm1Sk91fHQ3eGbmVSva8fMaxnL
         t+L+OKRVvmucRqUv8v2q5qIKfthPo7kONinzOhVW7wG6mZEY2/IaBzUh9bM9TZHq/STc
         nsgQ==
X-Gm-Message-State: ACrzQf0WXC+oHvQGeIYCv9Toxaw5gwX7K/uh08rOK5o4sfjzVts78sh2
        v7ytAcWf14qraC8Rksa8Btw=
X-Google-Smtp-Source: 
 AMsMyM4tjxDH3I9/SGWnHbcfvNSs5puflv1f7cQrHpZ3l9cFk2LAz69U4h06qmIKaA9OS3B/R5EUpg==
X-Received: by 2002:aa7:9624:0:b0:56c:8c13:27bf with SMTP id
 r4-20020aa79624000000b0056c8c1327bfmr33745147pfg.20.1667531819540;
        Thu, 03 Nov 2022 20:16:59 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.16.57
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:16:58 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 07/13] omapfb: panel-nec-nl8048hl11: switch to using
 gpiod API
Date: Thu,  3 Nov 2022 20:16:36 -0700
Message-Id: <20221103-omapfb-gpiod-v1-7-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.

Note that because existing DTSes specify incorrect polarity of reset
lines (active high) and GPU drivers have adopted to this, we follow
the suit and use inverted values when controlling reset lines.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../omap2/omapfb/displays/panel-nec-nl8048hl11.c   | 72 ++++++----------------
 1 file changed, 20 insertions(+), 52 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-nec-nl8048hl11.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-nec-nl8048hl11.c
index b407173e27b1..33563953b2ff 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-nec-nl8048hl11.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-nec-nl8048hl11.c
@@ -7,12 +7,12 @@
  * Converted to new DSS device model: Tomi Valkeinen <tomi.valkeinen@ti.com>
  */
 
-#include <linux/module.h>
 #include <linux/delay.h>
-#include <linux/spi/spi.h>
+#include <linux/err.h>
 #include <linux/fb.h>
-#include <linux/gpio.h>
-#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
 
 #include <video/omapfb_dss.h>
 
@@ -24,8 +24,7 @@ struct panel_drv_data {
 
 	int data_lines;
 
-	int res_gpio;
-	int qvga_gpio;
+	struct gpio_desc *res_gpio;
 
 	struct spi_device *spi;
 };
@@ -155,8 +154,8 @@ static int nec_8048_enable(struct omap_dss_device *dssdev)
 	if (r)
 		return r;
 
-	if (gpio_is_valid(ddata->res_gpio))
-		gpio_set_value_cansleep(ddata->res_gpio, 1);
+	/* Apparently existing DTSes use incorrect polarity (active high) */
+	gpiod_set_value_cansleep(ddata->res_gpio, 1);
 
 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 
@@ -171,8 +170,8 @@ static void nec_8048_disable(struct omap_dss_device *dssdev)
 	if (!omapdss_device_is_enabled(dssdev))
 		return;
 
-	if (gpio_is_valid(ddata->res_gpio))
-		gpio_set_value_cansleep(ddata->res_gpio, 0);
+	/* Apparently existing DTSes use incorrect polarity (active high) */
+	gpiod_set_value_cansleep(ddata->res_gpio, 0);
 
 	in->ops.dpi->disable(in);
 
@@ -222,35 +221,6 @@ static struct omap_dss_driver nec_8048_ops = {
 	.get_resolution	= omapdss_default_get_resolution,
 };
 
-
-static int nec_8048_probe_of(struct spi_device *spi)
-{
-	struct device_node *node = spi->dev.of_node;
-	struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
-	struct omap_dss_device *in;
-	int gpio;
-
-	gpio = of_get_named_gpio(node, "reset-gpios", 0);
-	if (!gpio_is_valid(gpio)) {
-		dev_err(&spi->dev, "failed to parse enable gpio\n");
-		return gpio;
-	}
-	ddata->res_gpio = gpio;
-
-	/* XXX the panel spec doesn't mention any QVGA pin?? */
-	ddata->qvga_gpio = -ENOENT;
-
-	in = omapdss_of_find_source_for_first_ep(node);
-	if (IS_ERR(in)) {
-		dev_err(&spi->dev, "failed to find video source\n");
-		return PTR_ERR(in);
-	}
-
-	ddata->in = in;
-
-	return 0;
-}
-
 static int nec_8048_probe(struct spi_device *spi)
 {
 	struct panel_drv_data *ddata;
@@ -281,24 +251,22 @@ static int nec_8048_probe(struct spi_device *spi)
 
 	ddata->spi = spi;
 
-	r = nec_8048_probe_of(spi);
-	if (r)
+	ddata->in = omapdss_of_find_source_for_first_ep(spi->dev.of_node);
+	r = PTR_ERR_OR_ZERO(ddata->in);
+	if (r) {
+		dev_err(&spi->dev, "failed to find video source: %d\n", r);
 		return r;
-
-	if (gpio_is_valid(ddata->qvga_gpio)) {
-		r = devm_gpio_request_one(&spi->dev, ddata->qvga_gpio,
-				GPIOF_OUT_INIT_HIGH, "lcd QVGA");
-		if (r)
-			goto err_gpio;
 	}
 
-	if (gpio_is_valid(ddata->res_gpio)) {
-		r = devm_gpio_request_one(&spi->dev, ddata->res_gpio,
-				GPIOF_OUT_INIT_LOW, "lcd RES");
-		if (r)
-			goto err_gpio;
+	ddata->res_gpio = devm_gpiod_get(&spi->dev, "reset", GPIOD_OUT_LOW);
+	r = PTR_ERR_OR_ZERO(ddata->res_gpio);
+	if (r) {
+		dev_err(&spi->dev, "failed to request reset gpio: %d\n", r);
+		goto err_gpio;
 	}
 
+	gpiod_set_consumer_name(ddata->res_gpio, "lcd RES");
+
 	ddata->videomode = nec_8048_panel_timings;
 
 	dssdev = &ddata->dssdev;

From patchwork Fri Nov  4 03:16:37 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031247
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id D264FC4321E
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:17:46 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S231180AbiKDDRo (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:17:44 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51716 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S231205AbiKDDR3 (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:17:29 -0400
Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com
 [IPv6:2607:f8b0:4864:20::1035])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F0B8425E9D;
        Thu,  3 Nov 2022 20:17:01 -0700 (PDT)
Received: by mail-pj1-x1035.google.com with SMTP id
 r61-20020a17090a43c300b00212f4e9cccdso7021314pjg.5;
        Thu, 03 Nov 2022 20:17:01 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=zrQmz6cJVqY/H9BfK/o+0dkaKbv8JCR1T0NvHoya8JA=;
        b=KMSJDgxFq1tY4jP2/++fZNe/D4/bncEPZSFY1/QeJqIqeDvK8p7XL22NdlHkO8+CEh
         gOezBO3bjIahYJkfRsGJNGoWh51A1HAQxFJHnQsm5m9B5VWGJYTVz5bwzhlt3g59+IoT
         CunmQTZ5fOSGNl6azO9SCS4x5qSW7puoWGiMUrvplVPe/9MbyYPrKmElyXtnUIlYAJyY
         K1BaqxxIOPXKwL3cAtuUc8n9Vonz3qwMOa8WQAf2sr8XmSGXM2flPBypFj6/STW3D4pa
         TP1pyFuhjmDnFZcW94rS7OMf1QJMlV4iqp5Mig15fFhTWOott2M3ZwXAk+ZZWxD5PmIY
         Thzw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=zrQmz6cJVqY/H9BfK/o+0dkaKbv8JCR1T0NvHoya8JA=;
        b=sl9JH2jZUR1hhrdtQOPOjFdDEdd88AybvgxU3A/FGYofMypnRT/JUvi7k6tz7tpYyR
         gB+4GvahVSNJc18fmzgHRIy13KBE9DUVLgUWc0MKioK+QdhhWR1hNn6v5y7XlnjASS+d
         N7t8BOfAVbCUgdv69oeebVkH7LZ90nhTEfqYKGe4pV9kzo6IeVgO8XACMLBuqmpvwuoN
         pcmdmKIfVxYHHv4OZZTr1Qy4OAm8HcjQ4hmZq9BdAFfZ7ZcEj83ZFuovByx4qjs+Jaxr
         L8jcOJQkbECjMaM70UirPeHuLc5KjQSqdgoLS/GwBxzwCe53S9vXWA3GCaa1Q6rlg8dN
         ZMow==
X-Gm-Message-State: ACrzQf2IGeS+DBtIvJ3bTNMY6I3fiK5xAXFj6k5sVfV6d2AX2voSyOss
        EByB8eqeYb6wfT/ogsXB0hM=
X-Google-Smtp-Source: 
 AMsMyM7j+GKismZ1Aj2+yOnap1TmWUP2Ww4Xc3hFpTrs6VKlzeGB4aRksFTNQcUwDzL/dmDGvPX7YA==
X-Received: by 2002:a17:902:7d87:b0:17f:9cd0:2e03 with SMTP id
 a7-20020a1709027d8700b0017f9cd02e03mr33241589plm.164.1667531821303;
        Thu, 03 Nov 2022 20:17:01 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.16.59
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:17:00 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 08/13] omapfb: panel-dpi: remove support for platform
 data
Date: Thu,  3 Nov 2022 20:16:37 -0700
Message-Id: <20221103-omapfb-gpiod-v1-8-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

There are no users of panel_dpi_platform_data in the mainline
kernel so support for it can be removed from the panel driver.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../video/fbdev/omap2/omapfb/displays/panel-dpi.c  | 83 ++--------------------
 include/video/omap-panel-data.h                    | 21 ------
 2 files changed, 7 insertions(+), 97 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-dpi.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-dpi.c
index ff3d1e8e1e7b..9790053c5877 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-dpi.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-dpi.c
@@ -6,15 +6,13 @@
  * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
  */
 
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 
 #include <video/omapfb_dss.h>
-#include <video/omap-panel-data.h>
 #include <video/of_display_timing.h>
 
 struct panel_drv_data {
@@ -25,9 +23,6 @@ struct panel_drv_data {
 
 	struct omap_video_timings videomode;
 
-	/* used for non-DT boot, to be removed */
-	int backlight_gpio;
-
 	struct gpio_desc *enable_gpio;
 };
 
@@ -77,9 +72,6 @@ static int panel_dpi_enable(struct omap_dss_device *dssdev)
 
 	gpiod_set_value_cansleep(ddata->enable_gpio, 1);
 
-	if (gpio_is_valid(ddata->backlight_gpio))
-		gpio_set_value_cansleep(ddata->backlight_gpio, 1);
-
 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 
 	return 0;
@@ -93,9 +85,6 @@ static void panel_dpi_disable(struct omap_dss_device *dssdev)
 	if (!omapdss_device_is_enabled(dssdev))
 		return;
 
-	if (gpio_is_valid(ddata->backlight_gpio))
-		gpio_set_value_cansleep(ddata->backlight_gpio, 0);
-
 	gpiod_set_value_cansleep(ddata->enable_gpio, 0);
 
 	in->ops.dpi->disable(in);
@@ -146,49 +135,6 @@ static struct omap_dss_driver panel_dpi_ops = {
 	.get_resolution	= omapdss_default_get_resolution,
 };
 
-static int panel_dpi_probe_pdata(struct platform_device *pdev)
-{
-	const struct panel_dpi_platform_data *pdata;
-	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
-	struct omap_dss_device *dssdev, *in;
-	struct videomode vm;
-	int r;
-
-	pdata = dev_get_platdata(&pdev->dev);
-
-	in = omap_dss_find_output(pdata->source);
-	if (in == NULL) {
-		dev_err(&pdev->dev, "failed to find video source '%s'\n",
-				pdata->source);
-		return -EPROBE_DEFER;
-	}
-
-	ddata->in = in;
-
-	ddata->data_lines = pdata->data_lines;
-
-	videomode_from_timing(pdata->display_timing, &vm);
-	videomode_to_omap_video_timings(&vm, &ddata->videomode);
-
-	dssdev = &ddata->dssdev;
-	dssdev->name = pdata->name;
-
-	r = devm_gpio_request_one(&pdev->dev, pdata->enable_gpio,
-					GPIOF_OUT_INIT_LOW, "panel enable");
-	if (r)
-		goto err_gpio;
-
-	ddata->enable_gpio = gpio_to_desc(pdata->enable_gpio);
-
-	ddata->backlight_gpio = pdata->backlight_gpio;
-
-	return 0;
-
-err_gpio:
-	omap_dss_put_device(ddata->in);
-	return r;
-}
-
 static int panel_dpi_probe_of(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
@@ -205,8 +151,6 @@ static int panel_dpi_probe_of(struct platform_device *pdev)
 
 	ddata->enable_gpio = gpio;
 
-	ddata->backlight_gpio = -ENOENT;
-
 	r = of_get_display_timing(node, "panel-timing", &timing);
 	if (r) {
 		dev_err(&pdev->dev, "failed to get video timing\n");
@@ -233,30 +177,18 @@ static int panel_dpi_probe(struct platform_device *pdev)
 	struct omap_dss_device *dssdev;
 	int r;
 
+	if (!pdev->dev.of_node)
+		return -ENODEV;
+
 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
 	if (ddata == NULL)
 		return -ENOMEM;
 
 	platform_set_drvdata(pdev, ddata);
 
-	if (dev_get_platdata(&pdev->dev)) {
-		r = panel_dpi_probe_pdata(pdev);
-		if (r)
-			return r;
-	} else if (pdev->dev.of_node) {
-		r = panel_dpi_probe_of(pdev);
-		if (r)
-			return r;
-	} else {
-		return -ENODEV;
-	}
-
-	if (gpio_is_valid(ddata->backlight_gpio)) {
-		r = devm_gpio_request_one(&pdev->dev, ddata->backlight_gpio,
-				GPIOF_OUT_INIT_LOW, "panel backlight");
-		if (r)
-			goto err_gpio;
-	}
+	r = panel_dpi_probe_of(pdev);
+	if (r)
+		return r;
 
 	dssdev = &ddata->dssdev;
 	dssdev->dev = &pdev->dev;
@@ -275,7 +207,6 @@ static int panel_dpi_probe(struct platform_device *pdev)
 	return 0;
 
 err_reg:
-err_gpio:
 	omap_dss_put_device(ddata->in);
 	return r;
 }
diff --git a/include/video/omap-panel-data.h b/include/video/omap-panel-data.h
index b7733150b55c..18172d7b97d0 100644
--- a/include/video/omap-panel-data.h
+++ b/include/video/omap-panel-data.h
@@ -31,25 +31,4 @@ struct connector_atv_platform_data {
 	bool invert_polarity;
 };
 
-/**
- * panel_dpi platform data
- * @name: name for this display entity
- * @source: name of the display entity used as a video source
- * @data_lines: number of DPI datalines
- * @display_timing: timings for this panel
- * @backlight_gpio: gpio to enable/disable the backlight (or -1)
- * @enable_gpio: gpio to enable/disable the panel (or -1)
- */
-struct panel_dpi_platform_data {
-	const char *name;
-	const char *source;
-
-	int data_lines;
-
-	const struct display_timing *display_timing;
-
-	int backlight_gpio;
-	int enable_gpio;
-};
-
 #endif /* __OMAP_PANEL_DATA_H */

From patchwork Fri Nov  4 03:16:38 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031248
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id 1A606C4332F
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:18:09 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S231260AbiKDDSG (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:18:06 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51990 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S230381AbiKDDRb (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:17:31 -0400
Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com
 [IPv6:2607:f8b0:4864:20::1029])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B537C20186;
        Thu,  3 Nov 2022 20:17:03 -0700 (PDT)
Received: by mail-pj1-x1029.google.com with SMTP id l6so3453032pjj.0;
        Thu, 03 Nov 2022 20:17:03 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=i3N39HNFiqYnjEtTIzF8MdLuTkDRvn84ONCWXTbY+Sc=;
        b=ZfixGSIH/mZRzcotLRCWziaYgI6pQe4HhPfxoaOcrlUVe6q4KuY6B/cmG83Vn0rQJW
         qPrvtysuEYTHQcjaD8j3ZuQZerWYCxN6Od3wHqNyAJbXyhjJ+3Xv56v24tqpKvIUWZ/y
         RmGovEz+53FQm/hnL27uqjRQrf7s0t7e2NcSB08424ngTrv7jNpsMRIkTZfeRSfFhreq
         2VpzeQbc5TV+h0gdqioeRjUcFKgZo+6IPYZo4CqA+F6rmpTk+t1Zyet2jtE6Z91/Pfcg
         7SGPjYk6Rs4gymMy6xOj20l+FcQKAWf4dHiPx4FxXgcOEqMC3qPUYTrky/HgHoaeP70p
         NZRQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=i3N39HNFiqYnjEtTIzF8MdLuTkDRvn84ONCWXTbY+Sc=;
        b=wud01rNWcN8qkhFw9NQ39pvgK1TqO7ZoUtS6BmemtDLAzI92I4cBZzURpH9aQIY5J0
         gIbGSW5L45xB/oS5eNP9fqPxSLimstedVtPBKQJsoXUxvnn5Oveu9FTkt4lbQ8cM1SUw
         acc/aC6p0iGxwo4hvmCw6Zk2dUgwfrIRWvN+55rxTg0qkuE/8Qcfz5zXtUvxLFzL58AA
         odpLaDa+aMWj5ISQ5ioTSaP3N4uSNPfTZINtbu4uWWbcYaz3voKrfPC2iFCvk2Weppb8
         WEN7NTXbQcVLmhPXog8aP0zA3OFshFd+QZNBgcfpa5xHCNt7q6uezY1y1/56/bAANVgM
         jDCw==
X-Gm-Message-State: ACrzQf2xQhXaDd2m81UAGwLwVG+j0W6mW/5jP/cyW20jwIDaQ4Bj6fXS
        qKjpZ3jaACfEOIrmVF50fSA=
X-Google-Smtp-Source: 
 AMsMyM7nrXImeyb+ka66vCt4Wt9iNDazA7HU2R3RzyPG8uayeoYSEucx8fEc3LM91bjy4udG/2+J7g==
X-Received: by 2002:a17:902:7849:b0:186:68b9:e1ae with SMTP id
 e9-20020a170902784900b0018668b9e1aemr33322333pln.139.1667531823059;
        Thu, 03 Nov 2022 20:17:03 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.17.01
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:17:02 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 09/13] omapfb: connector-analog-tv: remove support for
 platform data
Date: Thu,  3 Nov 2022 20:16:38 -0700
Message-Id: <20221103-omapfb-gpiod-v1-9-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

There are no users of connector_atv_platform_data in the mainline
kernel so support for it can be removed from the panel driver.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../omap2/omapfb/displays/connector-analog-tv.c    | 60 +++-------------------
 include/video/omap-panel-data.h                    | 34 ------------
 2 files changed, 8 insertions(+), 86 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/connector-analog-tv.c b/drivers/video/fbdev/omap2/omapfb/displays/connector-analog-tv.c
index a9fd732f8103..0daaf9f89bab 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/connector-analog-tv.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/connector-analog-tv.c
@@ -12,7 +12,6 @@
 #include <linux/of.h>
 
 #include <video/omapfb_dss.h>
-#include <video/omap-panel-data.h>
 
 struct panel_drv_data {
 	struct omap_dss_device dssdev;
@@ -178,53 +177,15 @@ static struct omap_dss_driver tvc_driver = {
 	.set_wss		= tvc_set_wss,
 };
 
-static int tvc_probe_pdata(struct platform_device *pdev)
-{
-	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
-	struct connector_atv_platform_data *pdata;
-	struct omap_dss_device *in, *dssdev;
-
-	pdata = dev_get_platdata(&pdev->dev);
-
-	in = omap_dss_find_output(pdata->source);
-	if (in == NULL) {
-		dev_err(&pdev->dev, "Failed to find video source\n");
-		return -EPROBE_DEFER;
-	}
-
-	ddata->in = in;
-
-	ddata->invert_polarity = pdata->invert_polarity;
-
-	dssdev = &ddata->dssdev;
-	dssdev->name = pdata->name;
-
-	return 0;
-}
-
-static int tvc_probe_of(struct platform_device *pdev)
-{
-	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
-	struct device_node *node = pdev->dev.of_node;
-	struct omap_dss_device *in;
-
-	in = omapdss_of_find_source_for_first_ep(node);
-	if (IS_ERR(in)) {
-		dev_err(&pdev->dev, "failed to find video source\n");
-		return PTR_ERR(in);
-	}
-
-	ddata->in = in;
-
-	return 0;
-}
-
 static int tvc_probe(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata;
 	struct omap_dss_device *dssdev;
 	int r;
 
+	if (!pdev->dev.of_node)
+		return -ENODEV;
+
 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
 	if (!ddata)
 		return -ENOMEM;
@@ -232,16 +193,11 @@ static int tvc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, ddata);
 	ddata->dev = &pdev->dev;
 
-	if (dev_get_platdata(&pdev->dev)) {
-		r = tvc_probe_pdata(pdev);
-		if (r)
-			return r;
-	} else if (pdev->dev.of_node) {
-		r = tvc_probe_of(pdev);
-		if (r)
-			return r;
-	} else {
-		return -ENODEV;
+	ddata->in = omapdss_of_find_source_for_first_ep(pdev->dev.of_node);
+	r = PTR_ERR_OR_ZERO(ddata->in);
+	if (r) {
+		dev_err(&pdev->dev, "failed to find video source\n");
+		return r;
 	}
 
 	ddata->timings = tvc_pal_timings;
diff --git a/include/video/omap-panel-data.h b/include/video/omap-panel-data.h
deleted file mode 100644
index 18172d7b97d0..000000000000
--- a/include/video/omap-panel-data.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Header containing platform_data structs for omap panels
- *
- * Copyright (C) 2013 Texas Instruments
- * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
- *	   Archit Taneja <archit@ti.com>
- *
- * Copyright (C) 2011 Texas Instruments
- * Author: Mayuresh Janorkar <mayur@ti.com>
- *
- * Copyright (C) 2010 Canonical Ltd.
- * Author: Bryan Wu <bryan.wu@canonical.com>
- */
-
-#ifndef __OMAP_PANEL_DATA_H
-#define __OMAP_PANEL_DATA_H
-
-#include <video/display_timing.h>
-
-/**
- * connector_atv platform data
- * @name: name for this display entity
- * @source: name of the display entity used as a video source
- * @invert_polarity: invert signal polarity
- */
-struct connector_atv_platform_data {
-	const char *name;
-	const char *source;
-
-	bool invert_polarity;
-};
-
-#endif /* __OMAP_PANEL_DATA_H */

From patchwork Fri Nov  4 03:16:39 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031249
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id 021FAC4332F
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:18:15 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S231296AbiKDDSO (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:18:14 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52520 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S231294AbiKDDRc (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:17:32 -0400
Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com
 [IPv6:2607:f8b0:4864:20::102c])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 51DF125EBE;
        Thu,  3 Nov 2022 20:17:05 -0700 (PDT)
Received: by mail-pj1-x102c.google.com with SMTP id
 f5-20020a17090a4a8500b002131bb59d61so6684444pjh.1;
        Thu, 03 Nov 2022 20:17:05 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=22K6PkYhm2RTgFl8J7eI0rFuhmRuZ1tgOi7SiCNakIU=;
        b=eCUOSzJCGIv89jR1mrjL7outaakI25Tfv5DG+xELHqaVFDajR9BBxrQLXp9RBSmKXy
         Ixw/o+mGYF+ZInI6aCXyDRge9uu33VVsSqvs8H0RBfFM/jUAq9ih9eX4B5Z+smJI9O78
         k3c/H1slom/nShXbnwzM1FbPx4c7mNrYL6cNobaeNe/ZkeZLThr+oqiiG9FyB9tNKsFF
         GZfQD7OASvy1erHQLfIYNewZMaBuFwYzoSuvOSD1ulpfmvmaQR9FcqPhtzjjNUs2ICWX
         vE+jqIVVe5+dp+lJqwfkruannQ/ulK8THJw6XMtscb7zyi8dRFyw0iSihoqu1F1FBvRy
         Ubxw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=22K6PkYhm2RTgFl8J7eI0rFuhmRuZ1tgOi7SiCNakIU=;
        b=eSnqOMo0hl/IYnp0vnuO528mQseL7L7XDtU02kXI9M1McfRD3O+m+OBhLkUVnl+7AK
         X4SHP+HnjQh9F1I9o+1sh8LSg82PJaC31zj70y7scafAWDDGmeQOwrDImlS/sUbmybtg
         6tgf4Af1quftK/czK2AmkBV/wmYdt/imx3ILyP+IxIYQDiqIGsERsVN2rPh1lkiUf98f
         A0qjkWCF9mtZCXFsiHyTNMJwSVAgwA6YFwSiWSYoHsQauq9vK1M59ubLA3bPjoHrqD1j
         mISvORVhTcETR/PWQMUPL+wprMLdz2olEFHI70hhzlOMLgRUI/6Ebhf90FYTimutdmQA
         g+AQ==
X-Gm-Message-State: ACrzQf2AuYqEVUagGsqQpGY31Zy+zJsL4zx5pQ2AMkW53IQ6kpxQE96W
        lqRRNA6uTDFm0kNM9gLIbaM=
X-Google-Smtp-Source: 
 AMsMyM4BKDnmdDnVIBnM5t1dlqUEKtvhnqWawAxs0BxXUqP/I9bG/L8n6ywXzspcW7BulLUaxFHoBA==
X-Received: by 2002:a17:902:e9cc:b0:186:8816:88d4 with SMTP id
 12-20020a170902e9cc00b00186881688d4mr33455050plk.59.1667531824632;
        Thu, 03 Nov 2022 20:17:04 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.17.03
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:17:04 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 10/13] omapfb: encoder-opa362: fix included headers
Date: Thu,  3 Nov 2022 20:16:39 -0700
Message-Id: <20221103-omapfb-gpiod-v1-10-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

The driver has been switched to gpiod API, so it should include
gpio/consumer.h instead of gpio.h and of_gpio.h.

With of_gpio.h no longer included we need mod_devicetable.h for
of_device_id definition.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/video/fbdev/omap2/omapfb/displays/encoder-opa362.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/encoder-opa362.c b/drivers/video/fbdev/omap2/omapfb/displays/encoder-opa362.c
index ba7ed4039f8a..dd29dc5c77ec 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/encoder-opa362.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/encoder-opa362.c
@@ -11,11 +11,11 @@
  * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
  */
 
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
-#include <linux/of_gpio.h>
 
 #include <video/omapfb_dss.h>
 

From patchwork Fri Nov  4 03:16:40 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031250
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id CA4C5C43217
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:18:20 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S231315AbiKDDSS (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:18:18 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51676 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S231316AbiKDDRe (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:17:34 -0400
Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com
 [IPv6:2607:f8b0:4864:20::62c])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 327C22610C;
        Thu,  3 Nov 2022 20:17:07 -0700 (PDT)
Received: by mail-pl1-x62c.google.com with SMTP id u6so3717140plq.12;
        Thu, 03 Nov 2022 20:17:07 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=BM/ZgUkpWv+s7vwzn/eT6S3wXaI2KYDcFcJls+ba05w=;
        b=HsxPuUdQwSnFQ64iRXaUt75qhUeJUOAmxgZvyMl3cSVcnxcHQPOh4HffyPqWb8e5n9
         7xil5xom0quAf5cGKdYEDu1NxOHsppOF4OtKd9AkfJKAI+XTs3vAt9mEooP1dZJiz1EF
         QwNspeCRYO4R86HE44lD4ny/BGwZD2Yim4jffZ1JIQe0L33LaV4b/a4F5lqcPkqN82AH
         3WQvRgiNhXMmaasIawBbU2JmGhhGh26ct44UwZHlVAT2YGn/nCBYVz/tjKzMEj7K+T0e
         AKFsPIG7jB7vT2gBjhmEyu/xOhePc/jJmprnoRbsoiRoBNBrHCKunpkkKAg5BVMq3/hE
         mbxA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=BM/ZgUkpWv+s7vwzn/eT6S3wXaI2KYDcFcJls+ba05w=;
        b=jhI1KPRu9YO+bSw+lXsLZlHYj6+znbkXKmX8Luq6num/o/SyS12ykz6iFbUAJgh3ag
         bAucdoGuLunSbBTtw6pE8xIaOuSqQzu+ICFXOxDNHwTiUS+owG2C7nMHD+s2Rfy5hIGc
         zT292pCQ0F3GrikHvEyb6jUCqveZ9WVSBmbX0aMHjX7uzU0ddLlXcbZnTq0FV8gaJihy
         rGXEY8TcbcKGfvf3oHEuMCzIeRZJPV/F7rdHjyOhwcGzrTM3fqYD/9Dq8DliQm13NKbG
         BlhjmVEZxuZ7MkA0X3AMu5UizN/IxBYX+kYURnAWhMg5CwMRgS46VRuh20c3KfmKNltl
         J+sg==
X-Gm-Message-State: ACrzQf1ffMtqtkTo2lVtsz4BGMzuToTjpzbNRA0cC3eFQrMRIK2vWoG4
        72UMg+k8MV7iCnOSR98ALzs=
X-Google-Smtp-Source: 
 AMsMyM6VLQ54CW2tu0iKULrkzQCWmsEnj5G7SB7ozCUYWTrPKrSsyNNhp3eu/M0HRnEgAa85rKqfCg==
X-Received: by 2002:a17:902:c14d:b0:187:337b:ad9c with SMTP id
 13-20020a170902c14d00b00187337bad9cmr18884743plj.35.1667531826511;
        Thu, 03 Nov 2022 20:17:06 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.17.04
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:17:05 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 11/13] omapfb: panel-lgphilips-lb035q02: remove
 backlight GPIO handling
Date: Thu,  3 Nov 2022 20:16:40 -0700
Message-Id: <20221103-omapfb-gpiod-v1-11-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

With f048e8c1d169 ("omapfb: panel-lgphilips-lb035q02: Remove legacy boot
support") it is no longer possible to specify GPIO to control the
backlight. Remove code trying to request and toggle it.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../omapfb/displays/panel-lgphilips-lb035q02.c      | 21 +--------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
index 3ce1f9d2e7c4..e69856cb62d5 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
@@ -11,7 +11,7 @@
 #include <linux/delay.h>
 #include <linux/spi/spi.h>
 #include <linux/mutex.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 
 #include <video/omapfb_dss.h>
 
@@ -46,9 +46,6 @@ struct panel_drv_data {
 
 	struct omap_video_timings videomode;
 
-	/* used for non-DT boot, to be removed */
-	int backlight_gpio;
-
 	struct gpio_desc *enable_gpio;
 };
 
@@ -166,9 +163,6 @@ static int lb035q02_enable(struct omap_dss_device *dssdev)
 	if (ddata->enable_gpio)
 		gpiod_set_value_cansleep(ddata->enable_gpio, 1);
 
-	if (gpio_is_valid(ddata->backlight_gpio))
-		gpio_set_value_cansleep(ddata->backlight_gpio, 1);
-
 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 
 	return 0;
@@ -185,9 +179,6 @@ static void lb035q02_disable(struct omap_dss_device *dssdev)
 	if (ddata->enable_gpio)
 		gpiod_set_value_cansleep(ddata->enable_gpio, 0);
 
-	if (gpio_is_valid(ddata->backlight_gpio))
-		gpio_set_value_cansleep(ddata->backlight_gpio, 0);
-
 	in->ops.dpi->disable(in);
 
 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
@@ -250,8 +241,6 @@ static int lb035q02_probe_of(struct spi_device *spi)
 
 	ddata->enable_gpio = gpio;
 
-	ddata->backlight_gpio = -ENOENT;
-
 	in = omapdss_of_find_source_for_first_ep(node);
 	if (IS_ERR(in)) {
 		dev_err(&spi->dev, "failed to find video source\n");
@@ -284,13 +273,6 @@ static int lb035q02_panel_spi_probe(struct spi_device *spi)
 	if (r)
 		return r;
 
-	if (gpio_is_valid(ddata->backlight_gpio)) {
-		r = devm_gpio_request_one(&spi->dev, ddata->backlight_gpio,
-				GPIOF_OUT_INIT_LOW, "panel backlight");
-		if (r)
-			goto err_gpio;
-	}
-
 	ddata->videomode = lb035q02_timings;
 
 	dssdev = &ddata->dssdev;
@@ -310,7 +292,6 @@ static int lb035q02_panel_spi_probe(struct spi_device *spi)
 	return 0;
 
 err_reg:
-err_gpio:
 	omap_dss_put_device(ddata->in);
 	return r;
 }

From patchwork Fri Nov  4 03:16:41 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031251
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id F1898C4332F
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:18:53 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S231205AbiKDDSv (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:18:51 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52874 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S231201AbiKDDRw (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:17:52 -0400
Received: from mail-pl1-x630.google.com (mail-pl1-x630.google.com
 [IPv6:2607:f8b0:4864:20::630])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3B9A2611E;
        Thu,  3 Nov 2022 20:17:08 -0700 (PDT)
Received: by mail-pl1-x630.google.com with SMTP id l2so3709049pld.13;
        Thu, 03 Nov 2022 20:17:08 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=rqxToHgUhXx5zVzMpfDkvTdc32yI7QdTCdmYmbj1mWo=;
        b=j1eELCK3rXz3s3bVoQnv3Vu0BMdZY+jObv7KwIQDVrR/E4D0UEyFceL4GQlw1xzjy7
         vR2S08jcyzZtY/FzzMOPNKL/mC6V5S/GDhUPCemBf/0pIl5V7bpIUoChLzdo5Psuh0em
         j6+SBf0d2qJgAfDSlw+wEoaYR/gQptqt6n+L9+o6IcfgkO40Qw3gvLemyJlbT5q5jCRX
         22D+sHrmOok5bNY3Cd50+Phy4Tleu4e2HwFMk5mcpaOKOHgs7MXiLCyF26TbMxjZRPDF
         evKOy7Ibuht885xVqnYRnUzL3tequdDqUUXVsJIbb6M7tlHz4dWFMT/KzEhrJNoDWsLr
         EHsg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=rqxToHgUhXx5zVzMpfDkvTdc32yI7QdTCdmYmbj1mWo=;
        b=0r+8AD2GP2OA/7zqdtpo22VwTqNMy6+5kMRYnflnzEq7du3oD2S3mNzm62bMEiwlmj
         d6KmkFsXSFVis5Vt19y7BjrMlx8DSGJRxrQ2kObQgfsMJPJ8Mu2hUwK49p+0E5eAIx18
         J5j0EfCMaOe2lCC95IC2TYPiNHkXvB6TCtZT7rfzxjDVew8O5c85kMinEvLzJW9FVEHn
         6mQ/o2vcRSRylRJPr1J3MUY80kgACGdxzglmZc1YFj6v9KSs2pYXWdghuKFTXxtT1Wvz
         GMgmbdy4vr9278OSsfWwUTxLmAk7spjdBRxTvP8gr0URfB+VKlnRN+AAVQfqLKYxYccs
         h65A==
X-Gm-Message-State: ACrzQf1qSnQY4oNqGKe2fG3+S2YJ8celz8ZkBfV3evZikbb4/ihhMCmK
        K3ckTImRKotbKzHsTLl3AiI=
X-Google-Smtp-Source: 
 AMsMyM4PVCPU2yHDYVCuNekAeB+5DTpKg+DXH2Jw0NlIlDE7xSaEuoTpI1qXSN4RrNFJ8SJoMNzKvw==
X-Received: by 2002:a17:90a:8c7:b0:214:e1:cad0 with SMTP id
 7-20020a17090a08c700b0021400e1cad0mr20381543pjn.3.1667531828266;
        Thu, 03 Nov 2022 20:17:08 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.17.06
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:17:07 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 12/13] omapfb: panel-tpo-td028ttec1: stop including
 gpio.h
Date: Thu,  3 Nov 2022 20:16:41 -0700
Message-Id: <20221103-omapfb-gpiod-v1-12-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

The driver does not use gpios, so there is no need to include gpio.h.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td028ttec1.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td028ttec1.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td028ttec1.c
index 3c0f887d3092..c18d290693c1 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td028ttec1.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td028ttec1.c
@@ -16,7 +16,6 @@
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/spi/spi.h>
-#include <linux/gpio.h>
 #include <video/omapfb_dss.h>
 
 struct panel_drv_data {

From patchwork Fri Nov  4 03:16:42 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Torokhov <dmitry.torokhov@gmail.com>
X-Patchwork-Id: 13031252
Return-Path: <linux-fbdev-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id 68C31C4321E
	for <linux-fbdev@archiver.kernel.org>; Fri,  4 Nov 2022 03:18:55 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S231546AbiKDDSx (ORCPT <rfc822;linux-fbdev@archiver.kernel.org>);
        Thu, 3 Nov 2022 23:18:53 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51768 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S231255AbiKDDSD (ORCPT
        <rfc822;linux-fbdev@vger.kernel.org>); Thu, 3 Nov 2022 23:18:03 -0400
Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com
 [IPv6:2607:f8b0:4864:20::1033])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2018B26133;
        Thu,  3 Nov 2022 20:17:11 -0700 (PDT)
Received: by mail-pj1-x1033.google.com with SMTP id
 d59-20020a17090a6f4100b00213202d77e1so7052205pjk.2;
        Thu, 03 Nov 2022 20:17:11 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:from:to:cc:subject:date
         :message-id:reply-to;
        bh=g6PAgha9awLqLasM2SZBLhBWQgufb9o8aM2Y2mLLZh0=;
        b=Yc66T/C43UfEpUcqxFl5/KtvvWxdKjjseUpHDw3Zky+25MC+fBsWw2ozPEZuES4kvK
         HKE67+vkfo9MYjWn+7/ot3l9RHt6HWq1g7/9WytwbtBrriBjNEViAnnsvPwvnyQgrP/N
         KF9Ob5cfsOPDPIsbZdBcjxjKdFE1q5m1hx1Va8lO9Am8eqiLwFDmIXE6upHp94Bcl9TJ
         gjrtAeuLLuAXpjO/5XengO2wiWYdw4kMLpOTWdEOoNIxUgAy+y8VRp9cioPjm/5A96oS
         Sir2Y38f9lQg6EjePLvvUIGCq6iF/dPvghZWbisu+x0NDR0CZe2gB1mIjjYxowyYTbOe
         DSNQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
         :subject:date:message-id:reply-to;
        bh=g6PAgha9awLqLasM2SZBLhBWQgufb9o8aM2Y2mLLZh0=;
        b=4HWBcsXBCOTfqmpFLLVTmSPM1DU5fTC0yUOljRHlSJ/CpLN0QZxZm4lGv7QWTzSG1A
         VxRZexK2Mm/0O/q4WqfAaY5uV3GtsKrjuMUwygpcUiGKlJmBMdQpzJyim6le64pREz+i
         V04DvPkfcqLhf7XhAtECm11uog1uKxDhGLTa4j4U7HGSwQ5KC9hyraWVKIueqUSsFVIu
         Jk9HGjYUDwHPCi/+B+Rq1LGhIMN55d00mJyLTYgcv4EBT2njFcwiSmoZdIrV9tWMRDaf
         OZcTEX9jBoQfgaWxEJrjPfPgPZ/NcKGcR1KkOBP4r4Nm3NbwvzehOyh5n5ced3qQLCs9
         omBA==
X-Gm-Message-State: ACrzQf2a4veNfdFWpf9gxKv9ekRHyXlqM81sXagEoJGGPWZtwqmNQO5R
        wWftkIDqwEnJHuuViUzYM6w=
X-Google-Smtp-Source: 
 AMsMyM64tXvt/mZih/5xOGONanOKPX+R66cULAJlCmjnRjUYkHYQrQu4rLsZLjxE/l1ilhdz95A/NA==
X-Received: by 2002:a17:90b:4d07:b0:1ef:521c:f051 with SMTP id
 mw7-20020a17090b4d0700b001ef521cf051mr52794390pjb.164.1667531830375;
        Thu, 03 Nov 2022 20:17:10 -0700 (PDT)
Received: from dtor-ws.mtv.corp.google.com
 ([2620:15c:9d:2:a6ae:11ff:fe11:fcc3])
        by smtp.gmail.com with ESMTPSA id
 s3-20020a63ff43000000b004702eca61fcsm1078655pgk.36.2022.11.03.20.17.08
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 03 Nov 2022 20:17:09 -0700 (PDT)
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Helge Deller <deller@gmx.de>, Tony Lindgren <tony@atomide.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: [PATCH RESEND 13/13] omapfb: panel-sharp-ls037v7dw01: fix included
 headers
Date: Thu,  3 Nov 2022 20:16:42 -0700
Message-Id: <20221103-omapfb-gpiod-v1-13-cba1fae5a77c@gmail.com>
X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog
In-Reply-To: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
References: <20221103-omapfb-gpiod-v1-0-cba1fae5a77c@gmail.com>
MIME-Version: 1.0
X-Mailer: b4 0.11.0-dev-28747
Precedence: bulk
List-ID: <linux-fbdev.vger.kernel.org>
X-Mailing-List: linux-fbdev@vger.kernel.org

The driver is using gpiod API so it should include gpio/consumer.h and
not gpio.gh or of_gpio.h.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
index f1072c319de8..cc30758300e2 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
@@ -7,10 +7,9 @@
  */
 
 #include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/regulator/consumer.h>