From patchwork Mon Dec 2 19:32:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sam Ravnborg X-Patchwork-Id: 11269615 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 84DCA109A for ; Mon, 2 Dec 2019 19:33:40 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6C69920833 for ; Mon, 2 Dec 2019 19:33:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6C69920833 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ravnborg.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D09886E2E5; Mon, 2 Dec 2019 19:33:38 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-lj1-x243.google.com (mail-lj1-x243.google.com [IPv6:2a00:1450:4864:20::243]) by gabe.freedesktop.org (Postfix) with ESMTPS id E24C36E2DE for ; Mon, 2 Dec 2019 19:33:36 +0000 (UTC) Received: by mail-lj1-x243.google.com with SMTP id e28so800025ljo.9 for ; Mon, 02 Dec 2019 11:33:36 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=1cwcVlQTSPEpvvTt7npXTAeRNecjJ4sL2WdE6IowvJo=; b=i9zx3n10LT69l4xGHfvIdtxJkgp840niaPHs5v714FA8Rw5SWqHiWmZCv2FbMbPipZ 3cVBXFSCls824ql1R269nupKi71JTyshsC7d4M1uYRhAaidNb9NtNXlC7mg12japS3qz Lz1Oi7QU4OAI1MoKBNmudcrbcsxBo+3iLZe52evEILsza3yxrtrHBUy4/FD+X3DR4lqc OB3mcoQFtVk5hFwojmKUgRi4oIzKWtVi/SWUbYot+F1iCDv8Rxr1ywcHYzxus40vF92h k0GFQ/zyMHmQvxrOqnH4Va9k5OvXAWoK8mvoAZSIujKTHBFqpS3ebKbuvJ0O3Y+rvxUc XH1g== X-Gm-Message-State: APjAAAVEG4Q90eHM7civHmVEuianF27sLmPyIMHLo1g+5AmO6E5FvDMX QdljaCs/ocTIPHSd2TGPeHrEKqw53OnMfw== X-Google-Smtp-Source: APXvYqxuD4DYzYut6ry4UElFe4ZjLh8rR23KZMh/GwY0agg4mlfI8UchY6oM0rWOK2lXFt8pu36fCg== X-Received: by 2002:a2e:999a:: with SMTP id w26mr287454lji.142.1575315215038; Mon, 02 Dec 2019 11:33:35 -0800 (PST) Received: from saturn.lan (18.158-248-194.customer.lyse.net. [158.248.194.18]) by smtp.gmail.com with ESMTPSA id g13sm79482lfb.74.2019.12.02.11.33.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Dec 2019 11:33:34 -0800 (PST) From: Sam Ravnborg To: dri-devel@lists.freedesktop.org, Thierry Reding , Laurent Pinchart Subject: [PATCH v1 16/26] drm/panel: panasonic-vvx10f034n00: use drm_panel backlight support Date: Mon, 2 Dec 2019 20:32:20 +0100 Message-Id: <20191202193230.21310-17-sam@ravnborg.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191202193230.21310-1-sam@ravnborg.org> References: <20191202193230.21310-1-sam@ravnborg.org> MIME-Version: 1.0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=1cwcVlQTSPEpvvTt7npXTAeRNecjJ4sL2WdE6IowvJo=; b=imCcVCQmdfVtejivHQ8KZ3aZd/wGiv7mSMxF8P61gBPk8JEEOnM5aBUs/RUQ/BM+Zs TZU5zBsnpML9NGpyS7AV6m4mryUxW3RdK/e9BhFtQolln8KI2MFdjwbNCEHgFDffbSEQ UjyRVShfamjiTe1VMJKsraIoBmzT5zYXchzx/cMKm+RKSDDy/7yuBZZmlKPnr9kFFV1s uhFD7Vjj5Rl80xoiyiU2KTIZs2jPm1h+3WusBF3g6jrXO/BIEGD2xe79Kr21fOZ0Hk+N 4cjdXLPmyBe9NWlJkOp0RvKlxnnEK+fOQ4pI38kQ0QEBBpF8I+Y4f2FVFn3Euq+UYigc 0brA== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Neil Armstrong , David Airlie , Sam Ravnborg , linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Tomi Valkeinen , Jagan Teki , NXP Linux Team , Jitao Shi , Pengutronix Kernel Team , linux-mediatek@lists.infradead.org, Abhinav Kumar , linux-tegra@vger.kernel.org, Sean Paul , linux-arm-kernel@lists.infradead.org, Purism Kernel Team , linux-renesas-soc@vger.kernel.org, Boris Brezillon Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Use the backlight support in drm_panel to simplify the driver Signed-off-by: Sam Ravnborg Cc: Thierry Reding Cc: Sam Ravnborg --- .../drm/panel/panel-panasonic-vvx10f034n00.c | 45 +++---------------- 1 file changed, 6 insertions(+), 39 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c b/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c index 579ac0d86ea4..4e15bff5a1b5 100644 --- a/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c +++ b/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c @@ -7,7 +7,6 @@ * Based on AUO panel driver by Rob Clark */ -#include #include #include #include @@ -31,7 +30,6 @@ struct wuxga_nt_panel { struct drm_panel base; struct mipi_dsi_device *dsi; - struct backlight_device *backlight; struct regulator *supply; bool prepared; @@ -62,12 +60,6 @@ static int wuxga_nt_panel_disable(struct drm_panel *panel) mipi_ret = mipi_dsi_shutdown_peripheral(wuxga_nt->dsi); - if (wuxga_nt->backlight) { - wuxga_nt->backlight->props.power = FB_BLANK_POWERDOWN; - wuxga_nt->backlight->props.state |= BL_CORE_FBBLANK; - bl_ret = backlight_update_status(wuxga_nt->backlight); - } - wuxga_nt->enabled = false; return mipi_ret ? mipi_ret : bl_ret; @@ -142,12 +134,6 @@ static int wuxga_nt_panel_enable(struct drm_panel *panel) if (wuxga_nt->enabled) return 0; - if (wuxga_nt->backlight) { - wuxga_nt->backlight->props.power = FB_BLANK_UNBLANK; - wuxga_nt->backlight->props.state &= ~BL_CORE_FBBLANK; - backlight_update_status(wuxga_nt->backlight); - } - wuxga_nt->enabled = true; return 0; @@ -206,7 +192,6 @@ MODULE_DEVICE_TABLE(of, wuxga_nt_of_match); static int wuxga_nt_panel_add(struct wuxga_nt_panel *wuxga_nt) { struct device *dev = &wuxga_nt->dsi->dev; - struct device_node *np; int ret; wuxga_nt->mode = &default_mode; @@ -215,38 +200,20 @@ static int wuxga_nt_panel_add(struct wuxga_nt_panel *wuxga_nt) if (IS_ERR(wuxga_nt->supply)) return PTR_ERR(wuxga_nt->supply); - np = of_parse_phandle(dev->of_node, "backlight", 0); - if (np) { - wuxga_nt->backlight = of_find_backlight_by_node(np); - of_node_put(np); - - if (!wuxga_nt->backlight) - return -EPROBE_DEFER; - } - drm_panel_init(&wuxga_nt->base, &wuxga_nt->dsi->dev, &wuxga_nt_panel_funcs, DRM_MODE_CONNECTOR_DSI); - ret = drm_panel_add(&wuxga_nt->base); - if (ret < 0) - goto put_backlight; - - return 0; - -put_backlight: - if (wuxga_nt->backlight) - put_device(&wuxga_nt->backlight->dev); + ret = drm_panel_of_backlight(&wuxga_nt->base); + if (ret) + return ret; - return ret; + return drm_panel_add(&wuxga_nt->base); } static void wuxga_nt_panel_del(struct wuxga_nt_panel *wuxga_nt) { if (wuxga_nt->base.dev) drm_panel_remove(&wuxga_nt->base); - - if (wuxga_nt->backlight) - put_device(&wuxga_nt->backlight->dev); } static int wuxga_nt_panel_probe(struct mipi_dsi_device *dsi) @@ -281,7 +248,7 @@ static int wuxga_nt_panel_remove(struct mipi_dsi_device *dsi) struct wuxga_nt_panel *wuxga_nt = mipi_dsi_get_drvdata(dsi); int ret; - ret = wuxga_nt_panel_disable(&wuxga_nt->base); + ret = drm_panel_disable(&wuxga_nt->base); if (ret < 0) dev_err(&dsi->dev, "failed to disable panel: %d\n", ret); @@ -298,7 +265,7 @@ static void wuxga_nt_panel_shutdown(struct mipi_dsi_device *dsi) { struct wuxga_nt_panel *wuxga_nt = mipi_dsi_get_drvdata(dsi); - wuxga_nt_panel_disable(&wuxga_nt->base); + drm_panel_disable(&wuxga_nt->base); } static struct mipi_dsi_driver wuxga_nt_panel_driver = {