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[158.248.194.18]) by smtp.gmail.com with ESMTPSA id w17sm5644188lfn.22.2019.12.07.06.04.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Dec 2019 06:04:43 -0800 (PST) From: Sam Ravnborg To: dri-devel@lists.freedesktop.org, Thierry Reding , Laurent Pinchart , Linus Walleij , Sam Ravnborg Subject: [PATCH v2 19/25] drm/panel: seiko-43wvf1g: use drm_panel backlight support Date: Sat, 7 Dec 2019 15:03:47 +0100 Message-Id: <20191207140353.23967-20-sam@ravnborg.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191207140353.23967-1-sam@ravnborg.org> References: <20191207140353.23967-1-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=e7mwo6xIwy/U2XO5N1RPHN+wQVnB1gT7AErUd+pEX6s=; b=msAonKM+50sxoUWm6s+q2esLV9oiyaLLag111TzDTz8SQ+I/uiTt4rgjySC6KQ24ZP fXT8q42NVcWNBBOldzoyC2oxgwuojTx+oMy8sGrVOxFJc+sIFep2xsKxiGPLGuvCUOQb +DehKKaI9EjFDPgvxBfkGTlkJ6+EeOEQ26qQrsfCpTK5BlwPzwkP21+KBhAIynRdYqh0 Jw7CBJeqjUi/cNctV7ufzixPmO4vWRS6LCKWGG3X/IuYWOWD+ogcWxss+SUNRHoQhGxd rb3/XNYedJL3zRiwMkBCAYztTMbOApa0sT+M+ObavSMPtvRbjj3Ie40+20QGBlMIpb2P +9bQ== 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 , 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 Reviewed-by: Laurent Pinchart Cc: Thierry Reding Cc: Sam Ravnborg --- drivers/gpu/drm/panel/panel-seiko-43wvf1g.c | 36 ++++----------------- 1 file changed, 6 insertions(+), 30 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c index 18e745104aaf..40fcbbbacb2c 100644 --- a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c +++ b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c @@ -6,7 +6,6 @@ * Based on Panel Simple driver by Thierry Reding */ -#include #include #include #include @@ -46,7 +45,6 @@ struct seiko_panel { bool prepared; bool enabled; const struct seiko_panel_desc *desc; - struct backlight_device *backlight; struct regulator *dvdd; struct regulator *avdd; }; @@ -127,12 +125,6 @@ static int seiko_panel_disable(struct drm_panel *panel) if (!p->enabled) return 0; - if (p->backlight) { - p->backlight->props.power = FB_BLANK_POWERDOWN; - p->backlight->props.state |= BL_CORE_FBBLANK; - backlight_update_status(p->backlight); - } - p->enabled = false; return 0; @@ -196,12 +188,6 @@ static int seiko_panel_enable(struct drm_panel *panel) if (p->enabled) return 0; - if (p->backlight) { - p->backlight->props.state &= ~BL_CORE_FBBLANK; - p->backlight->props.power = FB_BLANK_UNBLANK; - backlight_update_status(p->backlight); - } - p->enabled = true; return 0; @@ -245,7 +231,6 @@ static const struct drm_panel_funcs seiko_panel_funcs = { static int seiko_panel_probe(struct device *dev, const struct seiko_panel_desc *desc) { - struct device_node *backlight; struct seiko_panel *panel; int err; @@ -265,18 +250,13 @@ static int seiko_panel_probe(struct device *dev, if (IS_ERR(panel->avdd)) return PTR_ERR(panel->avdd); - backlight = of_parse_phandle(dev->of_node, "backlight", 0); - if (backlight) { - panel->backlight = of_find_backlight_by_node(backlight); - of_node_put(backlight); - - if (!panel->backlight) - return -EPROBE_DEFER; - } - drm_panel_init(&panel->base, dev, &seiko_panel_funcs, DRM_MODE_CONNECTOR_DPI); + err = drm_panel_of_backlight(&panel->base); + if (err) + return err; + err = drm_panel_add(&panel->base); if (err < 0) return err; @@ -291,11 +271,7 @@ static int seiko_panel_remove(struct platform_device *pdev) struct seiko_panel *panel = dev_get_drvdata(&pdev->dev); drm_panel_remove(&panel->base); - - seiko_panel_disable(&panel->base); - - if (panel->backlight) - put_device(&panel->backlight->dev); + drm_panel_disable(&panel->base); return 0; } @@ -304,7 +280,7 @@ static void seiko_panel_shutdown(struct platform_device *pdev) { struct seiko_panel *panel = dev_get_drvdata(&pdev->dev); - seiko_panel_disable(&panel->base); + drm_panel_disable(&panel->base); } static const struct display_timing seiko_43wvf1g_timing = {