From patchwork Tue Jul 18 16:54:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 13317506 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 39D72C04A94 for ; Tue, 18 Jul 2023 16:55:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2D12F10E383; Tue, 18 Jul 2023 16:55:07 +0000 (UTC) Received: from laurent.telenet-ops.be (laurent.telenet-ops.be [IPv6:2a02:1800:110:4::f00:19]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2C4D910E385 for ; Tue, 18 Jul 2023 16:54:54 +0000 (UTC) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed40:5803:2d6d:5bbc:e252]) by laurent.telenet-ops.be with bizsmtp id Ngur2A0040ucMBo01gurj5; Tue, 18 Jul 2023 18:54:53 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtp (Exim 4.95) (envelope-from ) id 1qLnyD-001nYC-8E; Tue, 18 Jul 2023 18:54:51 +0200 Received: from geert by rox.of.borg with local (Exim 4.95) (envelope-from ) id 1qLnyN-000gc4-9Q; Tue, 18 Jul 2023 18:54:51 +0200 From: Geert Uytterhoeven To: Laurent Pinchart , Kieran Bingham , David Airlie , Daniel Vetter , Thomas Zimmermann , Magnus Damm Subject: [PATCH v2 12/41] drm: renesas: shmobile: Remove backlight support Date: Tue, 18 Jul 2023 18:54:17 +0200 Message-Id: <1577826904a186d982fe001fdc211397f7dddedf.1689698048.git.geert+renesas@glider.be> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-renesas-soc@vger.kernel.org, Geert Uytterhoeven , Laurent Pinchart , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Laurent Pinchart Backlight support should be implemented by panels, not by the LCDC driver. As the feature is currently unused anyway, remove it. Signed-off-by: Laurent Pinchart [geert: Cleanups] Signed-off-by: Geert Uytterhoeven Reviewed-by: Laurent Pinchart --- v2: - Add Reviewed-by. Changes compared to Laurent's original: - Rebase, - Remove unused variable ‘scon’, - Remove now unused to_shmob_encoder() macro, - Remove now empty shmob_drm_encoder wrapper. --- drivers/gpu/drm/renesas/shmobile/Makefile | 3 +- .../renesas/shmobile/shmob_drm_backlight.c | 82 ------------------- .../renesas/shmobile/shmob_drm_backlight.h | 19 ----- .../gpu/drm/renesas/shmobile/shmob_drm_crtc.c | 33 +------- .../gpu/drm/renesas/shmobile/shmob_drm_crtc.h | 8 -- .../gpu/drm/renesas/shmobile/shmob_drm_drv.h | 2 +- .../gpu/drm/renesas/shmobile/shmob_drm_kms.c | 2 +- include/linux/platform_data/shmob_drm.h | 8 -- 8 files changed, 7 insertions(+), 150 deletions(-) delete mode 100644 drivers/gpu/drm/renesas/shmobile/shmob_drm_backlight.c delete mode 100644 drivers/gpu/drm/renesas/shmobile/shmob_drm_backlight.h diff --git a/drivers/gpu/drm/renesas/shmobile/Makefile b/drivers/gpu/drm/renesas/shmobile/Makefile index 861edafed8562c87..2679555d61a70207 100644 --- a/drivers/gpu/drm/renesas/shmobile/Makefile +++ b/drivers/gpu/drm/renesas/shmobile/Makefile @@ -1,6 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -shmob-drm-y := shmob_drm_backlight.o \ - shmob_drm_crtc.o \ +shmob-drm-y := shmob_drm_crtc.o \ shmob_drm_drv.o \ shmob_drm_kms.o \ shmob_drm_plane.o diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_backlight.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_backlight.c deleted file mode 100644 index 794573badfe86076..0000000000000000 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_backlight.c +++ /dev/null @@ -1,82 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * shmob_drm_backlight.c -- SH Mobile DRM Backlight - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#include - -#include "shmob_drm_backlight.h" -#include "shmob_drm_crtc.h" -#include "shmob_drm_drv.h" - -static int shmob_drm_backlight_update(struct backlight_device *bdev) -{ - struct shmob_drm_connector *scon = bl_get_data(bdev); - struct shmob_drm_device *sdev = scon->connector.dev->dev_private; - const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight; - int brightness = backlight_get_brightness(bdev); - - return bdata->set_brightness(brightness); -} - -static int shmob_drm_backlight_get_brightness(struct backlight_device *bdev) -{ - struct shmob_drm_connector *scon = bl_get_data(bdev); - struct shmob_drm_device *sdev = scon->connector.dev->dev_private; - const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight; - - return bdata->get_brightness(); -} - -static const struct backlight_ops shmob_drm_backlight_ops = { - .options = BL_CORE_SUSPENDRESUME, - .update_status = shmob_drm_backlight_update, - .get_brightness = shmob_drm_backlight_get_brightness, -}; - -void shmob_drm_backlight_dpms(struct shmob_drm_connector *scon, int mode) -{ - if (scon->backlight == NULL) - return; - - scon->backlight->props.power = mode == DRM_MODE_DPMS_ON - ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; - backlight_update_status(scon->backlight); -} - -int shmob_drm_backlight_init(struct shmob_drm_connector *scon) -{ - struct shmob_drm_device *sdev = scon->connector.dev->dev_private; - const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight; - struct drm_connector *connector = &scon->connector; - struct drm_device *dev = connector->dev; - struct backlight_device *backlight; - - if (!bdata->max_brightness) - return 0; - - backlight = backlight_device_register(bdata->name, dev->dev, scon, - &shmob_drm_backlight_ops, NULL); - if (IS_ERR(backlight)) { - dev_err(dev->dev, "unable to register backlight device: %ld\n", - PTR_ERR(backlight)); - return PTR_ERR(backlight); - } - - backlight->props.max_brightness = bdata->max_brightness; - backlight->props.brightness = bdata->max_brightness; - backlight->props.power = FB_BLANK_POWERDOWN; - backlight_update_status(backlight); - - scon->backlight = backlight; - return 0; -} - -void shmob_drm_backlight_exit(struct shmob_drm_connector *scon) -{ - backlight_device_unregister(scon->backlight); -} diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_backlight.h b/drivers/gpu/drm/renesas/shmobile/shmob_drm_backlight.h deleted file mode 100644 index d9abb7a60be5c414..0000000000000000 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_backlight.h +++ /dev/null @@ -1,19 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * shmob_drm_backlight.h -- SH Mobile DRM Backlight - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#ifndef __SHMOB_DRM_BACKLIGHT_H__ -#define __SHMOB_DRM_BACKLIGHT_H__ - -struct shmob_drm_connector; - -void shmob_drm_backlight_dpms(struct shmob_drm_connector *scon, int mode); -int shmob_drm_backlight_init(struct shmob_drm_connector *scon); -void shmob_drm_backlight_exit(struct shmob_drm_connector *scon); - -#endif /* __SHMOB_DRM_BACKLIGHT_H__ */ diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c index 2cdf8f9b06e5feb8..db9d8d440144db36 100644 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c @@ -7,7 +7,6 @@ * Laurent Pinchart (laurent.pinchart@ideasonboard.com) */ -#include #include #include @@ -24,7 +23,6 @@ #include #include -#include "shmob_drm_backlight.h" #include "shmob_drm_crtc.h" #include "shmob_drm_drv.h" #include "shmob_drm_kms.h" @@ -487,21 +485,9 @@ int shmob_drm_crtc_create(struct shmob_drm_device *sdev) * Encoder */ -#define to_shmob_encoder(e) \ - container_of(e, struct shmob_drm_encoder, encoder) - static void shmob_drm_encoder_dpms(struct drm_encoder *encoder, int mode) { - struct shmob_drm_encoder *senc = to_shmob_encoder(encoder); - struct shmob_drm_device *sdev = encoder->dev->dev_private; - struct shmob_drm_connector *scon = &sdev->connector; - - if (senc->dpms == mode) - return; - - shmob_drm_backlight_dpms(scon, mode); - - senc->dpms = mode; + /* No-op, everything is handled in the CRTC code. */ } static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder, @@ -553,11 +539,9 @@ static const struct drm_encoder_helper_funcs encoder_helper_funcs = { int shmob_drm_encoder_create(struct shmob_drm_device *sdev) { - struct drm_encoder *encoder = &sdev->encoder.encoder; + struct drm_encoder *encoder = &sdev->encoder; int ret; - sdev->encoder.dpms = DRM_MODE_DPMS_OFF; - encoder->possible_crtcs = 1; ret = drm_simple_encoder_init(sdev->ddev, encoder, @@ -622,9 +606,6 @@ static const struct drm_connector_helper_funcs connector_helper_funcs = { static void shmob_drm_connector_destroy(struct drm_connector *connector) { - struct shmob_drm_connector *scon = to_shmob_connector(connector); - - shmob_drm_backlight_exit(scon); drm_connector_unregister(connector); drm_connector_cleanup(connector); } @@ -653,13 +634,9 @@ int shmob_drm_connector_create(struct shmob_drm_device *sdev, drm_connector_helper_add(connector, &connector_helper_funcs); - ret = shmob_drm_backlight_init(&sdev->connector); - if (ret < 0) - goto err_cleanup; - ret = drm_connector_attach_encoder(connector, encoder); if (ret < 0) - goto err_backlight; + goto error; drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); drm_object_property_set_value(&connector->base, @@ -667,9 +644,7 @@ int shmob_drm_connector_create(struct shmob_drm_device *sdev, return 0; -err_backlight: - shmob_drm_backlight_exit(&sdev->connector); -err_cleanup: +error: drm_connector_cleanup(connector); return ret; } diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h index 21718843f46d3d19..bce6926269453b77 100644 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h @@ -14,7 +14,6 @@ #include #include -struct backlight_device; struct drm_pending_vblank_event; struct shmob_drm_device; struct shmob_drm_format_info; @@ -31,16 +30,9 @@ struct shmob_drm_crtc { bool started; }; -struct shmob_drm_encoder { - struct drm_encoder encoder; - int dpms; -}; - struct shmob_drm_connector { struct drm_connector connector; struct drm_encoder *encoder; - - struct backlight_device *backlight; }; int shmob_drm_crtc_create(struct shmob_drm_device *sdev); diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.h b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.h index 4964ddd5ab7472b0..16d830168b2ada21 100644 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.h +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.h @@ -35,7 +35,7 @@ struct shmob_drm_device { struct drm_device *ddev; struct shmob_drm_crtc crtc; - struct shmob_drm_encoder encoder; + struct drm_encoder encoder; struct shmob_drm_connector connector; }; diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c index 8fd360149743f8e2..3051318ddc7999bc 100644 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c @@ -159,7 +159,7 @@ int shmob_drm_modeset_init(struct shmob_drm_device *sdev) shmob_drm_crtc_create(sdev); shmob_drm_encoder_create(sdev); - shmob_drm_connector_create(sdev, &sdev->encoder.encoder); + shmob_drm_connector_create(sdev, &sdev->encoder); drm_kms_helper_poll_init(sdev->ddev); diff --git a/include/linux/platform_data/shmob_drm.h b/include/linux/platform_data/shmob_drm.h index d661399b217dfc4b..b6b5b6607fb5e52c 100644 --- a/include/linux/platform_data/shmob_drm.h +++ b/include/linux/platform_data/shmob_drm.h @@ -40,13 +40,6 @@ enum shmob_drm_interface { SHMOB_DRM_IFACE_SYS24, /* 24bpp */ }; -struct shmob_drm_backlight_data { - const char *name; - int max_brightness; - int (*get_brightness)(void); - int (*set_brightness)(int brightness); -}; - struct shmob_drm_panel_data { unsigned int width_mm; /* Panel width in mm */ unsigned int height_mm; /* Panel height in mm */ @@ -83,7 +76,6 @@ struct shmob_drm_platform_data { enum shmob_drm_clk_source clk_source; struct shmob_drm_interface_data iface; struct shmob_drm_panel_data panel; - struct shmob_drm_backlight_data backlight; }; #endif /* __SHMOB_DRM_H__ */