From: Sam Ravnborg <sam@ravnborg.org> To: dri-devel@lists.freedesktop.org, Thierry Reding <thierry.reding@gmail.com> Cc: Neil Armstrong <narmstrong@baylibre.com>, David Airlie <airlied@linux.ie>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, Marek Vasut <marex@denx.de>, Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>, Sam Ravnborg <sam@ravnborg.org>, Krzysztof Kozlowski <krzk@kernel.org>, Jonathan Hunter <jonathanh@nvidia.com>, Maxime Ripard <maxime.ripard@bootlin.com>, Kukjin Kim <kgene@kernel.org>, Allison Randal <allison@lohutok.net>, NXP Linux Team <linux-imx@nxp.com>, Pengutronix Kernel Team <kernel@pengutronix.de>, Jonas Karlman <jonas@kwiboo.se>, Alison Wang <alison.wang@nxp.com>, Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>, Alexios Zavras <alexios.zavras@intel.com>, linux-samsung-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>, Sean Paul <sean@poorly.run>, linux-arm-kernel@lists.infradead.org, Jernej Skrabec <jernej.skrab> Subject: [PATCH v1 16/16] drm/panel: simple: use drm_panel infrastructure Date: Sun, 4 Aug 2019 22:16:37 +0200 [thread overview] Message-ID: <20190804201637.1240-17-sam@ravnborg.org> (raw) In-Reply-To: <20190804201637.1240-1-sam@ravnborg.org> Use drm_panel infrastrucute: - drm_panel has guards for calling disable/enable twice - drm_panel has backlight support To use the drm_panel infrastructure use the drm_panel_* variants for prepare/enable/disable/unprepare. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> --- drivers/gpu/drm/panel/panel-simple.c | 73 +++++----------------------- 1 file changed, 11 insertions(+), 62 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index bff7578f84dd..c7eed34f2c9c 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -21,7 +21,6 @@ * DEALINGS IN THE SOFTWARE. */ -#include <linux/backlight.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/module.h> @@ -98,13 +97,10 @@ struct panel_desc { struct panel_simple { struct drm_panel base; - bool prepared; - bool enabled; bool no_hpd; const struct panel_desc *desc; - struct backlight_device *backlight; struct regulator *supply; struct i2c_adapter *ddc; @@ -232,20 +228,9 @@ static int panel_simple_disable(struct drm_panel *panel) { struct panel_simple *p = to_panel_simple(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); - } - if (p->desc->delay.disable) msleep(p->desc->delay.disable); - p->enabled = false; - return 0; } @@ -253,9 +238,6 @@ static int panel_simple_unprepare(struct drm_panel *panel) { struct panel_simple *p = to_panel_simple(panel); - if (!p->prepared) - return 0; - gpiod_set_value_cansleep(p->enable_gpio, 0); regulator_disable(p->supply); @@ -263,8 +245,6 @@ static int panel_simple_unprepare(struct drm_panel *panel) if (p->desc->delay.unprepare) msleep(p->desc->delay.unprepare); - p->prepared = false; - return 0; } @@ -274,9 +254,6 @@ static int panel_simple_prepare(struct drm_panel *panel) unsigned int delay; int err; - if (p->prepared) - return 0; - err = regulator_enable(p->supply); if (err < 0) { dev_err(panel->dev, "failed to enable supply: %d\n", err); @@ -291,8 +268,6 @@ static int panel_simple_prepare(struct drm_panel *panel) if (delay) msleep(delay); - p->prepared = true; - return 0; } @@ -300,20 +275,9 @@ static int panel_simple_enable(struct drm_panel *panel) { struct panel_simple *p = to_panel_simple(panel); - if (p->enabled) - return 0; - if (p->desc->delay.enable) msleep(p->desc->delay.enable); - 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; } @@ -413,7 +377,7 @@ static void panel_simple_parse_panel_timing_node(struct device *dev, static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) { - struct device_node *backlight, *ddc; + struct device_node *ddc; struct panel_simple *panel; struct display_timing dt; int err; @@ -422,8 +386,6 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) if (!panel) return -ENOMEM; - panel->enabled = false; - panel->prepared = false; panel->desc = desc; panel->no_hpd = of_property_read_bool(dev->of_node, "no-hpd"); @@ -441,24 +403,13 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) return err; } - 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; - } - ddc = of_parse_phandle(dev->of_node, "ddc-i2c-bus", 0); if (ddc) { panel->ddc = of_find_i2c_adapter_by_node(ddc); of_node_put(ddc); - if (!panel->ddc) { - err = -EPROBE_DEFER; - goto free_backlight; - } + if (!panel->ddc) + return -EPROBE_DEFER; } if (!of_get_display_timing(dev->of_node, "panel-timing", &dt)) @@ -468,6 +419,10 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) panel->base.dev = dev; panel->base.funcs = &panel_simple_funcs; + err = drm_panel_of_backlight(&panel->base); + if (err) + goto free_ddc; + err = drm_panel_add(&panel->base); if (err < 0) goto free_ddc; @@ -479,9 +434,6 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) free_ddc: if (panel->ddc) put_device(&panel->ddc->dev); -free_backlight: - if (panel->backlight) - put_device(&panel->backlight->dev); return err; } @@ -492,15 +444,12 @@ static int panel_simple_remove(struct device *dev) drm_panel_remove(&panel->base); - panel_simple_disable(&panel->base); - panel_simple_unprepare(&panel->base); + drm_panel_disable(&panel->base); + drm_panel_unprepare(&panel->base); if (panel->ddc) put_device(&panel->ddc->dev); - if (panel->backlight) - put_device(&panel->backlight->dev); - return 0; } @@ -508,8 +457,8 @@ static void panel_simple_shutdown(struct device *dev) { struct panel_simple *panel = dev_get_drvdata(dev); - panel_simple_disable(&panel->base); - panel_simple_unprepare(&panel->base); + drm_panel_disable(&panel->base); + drm_panel_unprepare(&panel->base); } static const struct drm_display_mode ampire_am_480272h3tmqw_t01h_mode = { -- 2.20.1 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
WARNING: multiple messages have this Message-ID (diff)
From: Sam Ravnborg <sam@ravnborg.org> To: dri-devel@lists.freedesktop.org, Thierry Reding <thierry.reding@gmail.com> Cc: Neil Armstrong <narmstrong@baylibre.com>, David Airlie <airlied@linux.ie>, Linus Walleij <linus.walleij@linaro.org>, Stefan Agner <stefan@agner.ch>, Andrzej Hajda <a.hajda@samsung.com>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, Benjamin Gaignard <benjamin.gaignard@linaro.org>, Fabio Estevam <festevam@gmail.com>, Marek Vasut <marex@denx.de>, Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>, Joonyoung Shim <jy0922.shim@samsung.com>, Sam Ravnborg <sam@ravnborg.org>, Krzysztof Kozlowski <krzk@kernel.org>, Jonathan Hunter <jonathanh@nvidia.com>, Maxime Ripard <maxime.ripard@bootlin.com>, Kukjin Kim <kgene@kernel.org>, Allison Randal <allison@lohutok.net>, Philipp Zabel <p.zabel@pengutronix.de>, NXP Linux Team <linux-imx@nxp.com>, Pengutronix Kernel Team <kernel@pengutronix.de>, Jonas Karlman <jonas@kwiboo.se>, Sascha Hauer <s.hauer@pengutronix.de>, Alison Wang <alison.wang@nxp.com>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>, Inki Dae <inki.dae@samsung.com>, Alexios Zavras <alexios.zavras@intel.com>, linux-samsung-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>, Sean Paul <sean@poorly.run>, linux-arm-kernel@lists.infradead.org, Jernej Skrabec <jernej.skrabec@siol.net>, Shawn Guo <shawnguo@kernel.org>, Seung-Woo Kim <sw0312.kim@samsung.com>, Vincent Abriou <vincent.abriou@st.com>, Kyungmin Park <kyungmin.park@samsung.com>, Daniel Vetter <daniel@ffwll.ch>, Enrico Weigelt <info@metux.net> Subject: [PATCH v1 16/16] drm/panel: simple: use drm_panel infrastructure Date: Sun, 4 Aug 2019 22:16:37 +0200 [thread overview] Message-ID: <20190804201637.1240-17-sam@ravnborg.org> (raw) In-Reply-To: <20190804201637.1240-1-sam@ravnborg.org> Use drm_panel infrastrucute: - drm_panel has guards for calling disable/enable twice - drm_panel has backlight support To use the drm_panel infrastructure use the drm_panel_* variants for prepare/enable/disable/unprepare. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> --- drivers/gpu/drm/panel/panel-simple.c | 73 +++++----------------------- 1 file changed, 11 insertions(+), 62 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index bff7578f84dd..c7eed34f2c9c 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -21,7 +21,6 @@ * DEALINGS IN THE SOFTWARE. */ -#include <linux/backlight.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/module.h> @@ -98,13 +97,10 @@ struct panel_desc { struct panel_simple { struct drm_panel base; - bool prepared; - bool enabled; bool no_hpd; const struct panel_desc *desc; - struct backlight_device *backlight; struct regulator *supply; struct i2c_adapter *ddc; @@ -232,20 +228,9 @@ static int panel_simple_disable(struct drm_panel *panel) { struct panel_simple *p = to_panel_simple(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); - } - if (p->desc->delay.disable) msleep(p->desc->delay.disable); - p->enabled = false; - return 0; } @@ -253,9 +238,6 @@ static int panel_simple_unprepare(struct drm_panel *panel) { struct panel_simple *p = to_panel_simple(panel); - if (!p->prepared) - return 0; - gpiod_set_value_cansleep(p->enable_gpio, 0); regulator_disable(p->supply); @@ -263,8 +245,6 @@ static int panel_simple_unprepare(struct drm_panel *panel) if (p->desc->delay.unprepare) msleep(p->desc->delay.unprepare); - p->prepared = false; - return 0; } @@ -274,9 +254,6 @@ static int panel_simple_prepare(struct drm_panel *panel) unsigned int delay; int err; - if (p->prepared) - return 0; - err = regulator_enable(p->supply); if (err < 0) { dev_err(panel->dev, "failed to enable supply: %d\n", err); @@ -291,8 +268,6 @@ static int panel_simple_prepare(struct drm_panel *panel) if (delay) msleep(delay); - p->prepared = true; - return 0; } @@ -300,20 +275,9 @@ static int panel_simple_enable(struct drm_panel *panel) { struct panel_simple *p = to_panel_simple(panel); - if (p->enabled) - return 0; - if (p->desc->delay.enable) msleep(p->desc->delay.enable); - 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; } @@ -413,7 +377,7 @@ static void panel_simple_parse_panel_timing_node(struct device *dev, static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) { - struct device_node *backlight, *ddc; + struct device_node *ddc; struct panel_simple *panel; struct display_timing dt; int err; @@ -422,8 +386,6 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) if (!panel) return -ENOMEM; - panel->enabled = false; - panel->prepared = false; panel->desc = desc; panel->no_hpd = of_property_read_bool(dev->of_node, "no-hpd"); @@ -441,24 +403,13 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) return err; } - 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; - } - ddc = of_parse_phandle(dev->of_node, "ddc-i2c-bus", 0); if (ddc) { panel->ddc = of_find_i2c_adapter_by_node(ddc); of_node_put(ddc); - if (!panel->ddc) { - err = -EPROBE_DEFER; - goto free_backlight; - } + if (!panel->ddc) + return -EPROBE_DEFER; } if (!of_get_display_timing(dev->of_node, "panel-timing", &dt)) @@ -468,6 +419,10 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) panel->base.dev = dev; panel->base.funcs = &panel_simple_funcs; + err = drm_panel_of_backlight(&panel->base); + if (err) + goto free_ddc; + err = drm_panel_add(&panel->base); if (err < 0) goto free_ddc; @@ -479,9 +434,6 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) free_ddc: if (panel->ddc) put_device(&panel->ddc->dev); -free_backlight: - if (panel->backlight) - put_device(&panel->backlight->dev); return err; } @@ -492,15 +444,12 @@ static int panel_simple_remove(struct device *dev) drm_panel_remove(&panel->base); - panel_simple_disable(&panel->base); - panel_simple_unprepare(&panel->base); + drm_panel_disable(&panel->base); + drm_panel_unprepare(&panel->base); if (panel->ddc) put_device(&panel->ddc->dev); - if (panel->backlight) - put_device(&panel->backlight->dev); - return 0; } @@ -508,8 +457,8 @@ static void panel_simple_shutdown(struct device *dev) { struct panel_simple *panel = dev_get_drvdata(dev); - panel_simple_disable(&panel->base); - panel_simple_unprepare(&panel->base); + drm_panel_disable(&panel->base); + drm_panel_unprepare(&panel->base); } static const struct drm_display_mode ampire_am_480272h3tmqw_t01h_mode = { -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-08-04 20:16 UTC|newest] Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-04 20:16 [PATCH v1 0/16] drm: panel related updates Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-04 20:16 ` [PATCH v1 01/16] drm/bridge: tc358767: fix opencoded use of drm_panel_* Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-05 9:35 ` Philipp Zabel 2019-08-05 9:35 ` Philipp Zabel 2019-08-05 11:53 ` Sam Ravnborg 2019-08-05 11:53 ` Sam Ravnborg 2019-08-04 20:16 ` [PATCH v1 02/16] drm/exynos: " Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-12-01 11:32 ` Sam Ravnborg 2019-12-01 11:32 ` Sam Ravnborg 2019-12-01 11:32 ` Sam Ravnborg 2019-12-01 11:32 ` Sam Ravnborg 2019-08-04 20:16 ` [PATCH v1 03/16] " Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-12-01 11:32 ` Sam Ravnborg 2019-12-01 11:32 ` Sam Ravnborg 2019-12-01 11:32 ` Sam Ravnborg 2019-12-01 11:32 ` Sam Ravnborg 2019-08-04 20:16 ` [PATCH v1 04/16] drm/imx: " Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-05 9:34 ` Philipp Zabel 2019-08-05 9:34 ` Philipp Zabel 2019-08-04 20:16 ` [PATCH v1 05/16] drm/fsl-dcu: " Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-05 9:16 ` Stefan Agner 2019-08-05 9:16 ` Stefan Agner 2019-08-05 11:54 ` Sam Ravnborg 2019-08-05 11:54 ` Sam Ravnborg 2019-08-04 20:16 ` [PATCH v1 06/16] drm/msm: " Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-12-01 11:33 ` Sam Ravnborg 2019-12-01 11:33 ` Sam Ravnborg 2019-12-01 11:33 ` Sam Ravnborg 2019-12-01 11:33 ` Sam Ravnborg 2019-08-04 20:16 ` [PATCH v1 07/16] drm/mxsfb: " Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-05 9:20 ` Stefan Agner 2019-08-05 9:20 ` Stefan Agner 2019-08-04 20:16 ` [PATCH v1 08/16] drm/sti: " Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-07 11:55 ` Benjamin Gaignard 2019-08-07 11:55 ` Benjamin Gaignard 2019-08-04 20:16 ` [PATCH v1 09/16] drm/tegra: " Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-12-01 11:33 ` Sam Ravnborg 2019-12-01 11:33 ` Sam Ravnborg 2019-12-01 11:33 ` Sam Ravnborg 2019-12-01 11:33 ` Sam Ravnborg 2019-08-04 20:16 ` [PATCH v1 10/16] drm/panel: ili9322: move bus_flags to get_modes() Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-06 12:56 ` Linus Walleij 2019-08-06 12:56 ` Linus Walleij 2019-08-04 20:16 ` [PATCH v1 11/16] drm/panel: move drm_panel functions to .c file Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-05 10:45 ` Laurent Pinchart 2019-08-05 10:45 ` Laurent Pinchart 2019-08-04 20:16 ` [PATCH v1 12/16] drm/panel: use inline comments in drm_panel.h Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-05 10:54 ` Laurent Pinchart 2019-08-05 10:54 ` Laurent Pinchart 2019-08-04 20:16 ` [PATCH v1 13/16] drm/panel: drop return code from drm_panel_detach() Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-05 10:56 ` Laurent Pinchart 2019-08-05 10:56 ` Laurent Pinchart 2019-08-04 20:16 ` [PATCH v1 14/16] drm/panel: call prepare/enable only once Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-05 10:59 ` Laurent Pinchart 2019-08-05 10:59 ` Laurent Pinchart 2019-08-05 13:15 ` Emil Velikov 2019-08-05 13:15 ` Emil Velikov 2019-08-05 16:51 ` Sam Ravnborg 2019-08-05 16:51 ` Sam Ravnborg 2019-12-02 15:22 ` Laurent Pinchart 2019-12-02 15:22 ` Laurent Pinchart 2019-12-02 15:22 ` Laurent Pinchart 2019-12-02 15:22 ` Laurent Pinchart 2019-08-05 17:01 ` Sean Paul 2019-08-05 17:01 ` Sean Paul 2019-12-02 15:15 ` Laurent Pinchart 2019-12-02 15:15 ` Laurent Pinchart 2019-12-02 15:15 ` Laurent Pinchart 2019-12-02 15:15 ` Laurent Pinchart 2019-08-04 20:16 ` [PATCH v1 15/16] drm/panel: add backlight support Sam Ravnborg 2019-08-04 20:16 ` Sam Ravnborg 2019-08-05 11:04 ` Laurent Pinchart 2019-08-05 11:04 ` Laurent Pinchart 2019-08-04 20:16 ` Sam Ravnborg [this message] 2019-08-04 20:16 ` [PATCH v1 16/16] drm/panel: simple: use drm_panel infrastructure Sam Ravnborg 2019-08-05 11:12 ` Laurent Pinchart 2019-08-05 11:12 ` Laurent Pinchart 2019-08-05 13:18 ` [PATCH v1 0/16] drm: panel related updates Emil Velikov 2019-08-05 13:18 ` Emil Velikov
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