All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jitao Shi <jitao.shi@mediatek.com>
To: Sam Ravnborg <sam@ravnborg.org>, David Airlie <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	<dri-devel@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>
Cc: <srv_heupstream@mediatek.com>, <yingjoe.chen@mediatek.com>,
	<eddie.huang@mediatek.com>, <cawa.cheng@mediatek.com>,
	<bibby.hsieh@mediatek.com>, <ck.hu@mediatek.com>,
	<stonea168@163.com>, "Jitao Shi" <jitao.shi@mediatek.com>
Subject: [PATCH 1/3] drm/panel: panel-innolux: Allow 2 reset pins for panel
Date: Thu, 12 Sep 2019 17:04:02 +0800	[thread overview]
Message-ID: <20190912090404.89822-2-jitao.shi@mediatek.com> (raw)
In-Reply-To: <20190912090404.89822-1-jitao.shi@mediatek.com>

This is useful when there is a bridge between the SoC and the
panel.

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
 drivers/gpu/drm/panel/panel-innolux-p079zca.c | 39 ++++++++++++-------
 1 file changed, 24 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
index d92d1c98878c..8db404fb5eeb 100644
--- a/drivers/gpu/drm/panel/panel-innolux-p079zca.c
+++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
@@ -54,7 +54,7 @@ struct innolux_panel {
 
 	struct backlight_device *backlight;
 	struct regulator_bulk_data *supplies;
-	struct gpio_desc *enable_gpio;
+	struct gpio_desc *enable_gpio[2];
 
 	bool prepared;
 	bool enabled;
@@ -82,7 +82,7 @@ static int innolux_panel_disable(struct drm_panel *panel)
 static int innolux_panel_unprepare(struct drm_panel *panel)
 {
 	struct innolux_panel *innolux = to_innolux_panel(panel);
-	int err;
+	int err, i;
 
 	if (!innolux->prepared)
 		return 0;
@@ -102,7 +102,8 @@ static int innolux_panel_unprepare(struct drm_panel *panel)
 	if (innolux->desc->sleep_mode_delay)
 		msleep(innolux->desc->sleep_mode_delay);
 
-	gpiod_set_value_cansleep(innolux->enable_gpio, 0);
+	for (i = 0; i < ARRAY_SIZE(innolux->enable_gpio); i++)
+		gpiod_set_value_cansleep(innolux->enable_gpio[i], 0);
 
 	if (innolux->desc->power_down_delay)
 		msleep(innolux->desc->power_down_delay);
@@ -120,22 +121,27 @@ static int innolux_panel_unprepare(struct drm_panel *panel)
 static int innolux_panel_prepare(struct drm_panel *panel)
 {
 	struct innolux_panel *innolux = to_innolux_panel(panel);
-	int err;
+	int err, i;
 
 	if (innolux->prepared)
 		return 0;
 
-	gpiod_set_value_cansleep(innolux->enable_gpio, 0);
+	for (i = 0; i < ARRAY_SIZE(innolux->enable_gpio); i++)
+		gpiod_set_value_cansleep(innolux->enable_gpio[i], 0);
 
 	err = regulator_bulk_enable(innolux->desc->num_supplies,
 				    innolux->supplies);
 	if (err < 0)
 		return err;
 
-	/* p079zca: t2 (20ms), p097pfg: t4 (15ms) */
-	usleep_range(20000, 21000);
+	for (i = 0; i < ARRAY_SIZE(innolux->enable_gpio); i++) {
+		if (!innolux->enable_gpio[i])
+			break;
 
-	gpiod_set_value_cansleep(innolux->enable_gpio, 1);
+		/* p079zca: t2 (20ms), p097pfg: t4 (15ms) */
+		usleep_range(20000, 21000);
+		gpiod_set_value_cansleep(innolux->enable_gpio[i], 1);
+	}
 
 	/* p079zca: t4, p097pfg: t5 */
 	usleep_range(20000, 21000);
@@ -195,7 +201,8 @@ static int innolux_panel_prepare(struct drm_panel *panel)
 	return 0;
 
 poweroff:
-	gpiod_set_value_cansleep(innolux->enable_gpio, 0);
+	for (i = 0; i < ARRAY_SIZE(innolux->enable_gpio); i++)
+		gpiod_set_value_cansleep(innolux->enable_gpio[i], 0);
 	regulator_bulk_disable(innolux->desc->num_supplies, innolux->supplies);
 
 	return err;
@@ -475,12 +482,14 @@ static int innolux_panel_add(struct mipi_dsi_device *dsi,
 	if (err < 0)
 		return err;
 
-	innolux->enable_gpio = devm_gpiod_get_optional(dev, "enable",
-						       GPIOD_OUT_HIGH);
-	if (IS_ERR(innolux->enable_gpio)) {
-		err = PTR_ERR(innolux->enable_gpio);
-		dev_dbg(dev, "failed to get enable gpio: %d\n", err);
-		innolux->enable_gpio = NULL;
+	for (i = 0; i < ARRAY_SIZE(innolux->enable_gpio); i++) {
+		innolux->enable_gpio[i] = devm_gpiod_get_index_optional(dev,
+						"enable", i, GPIOD_OUT_HIGH);
+		if (IS_ERR(innolux->enable_gpio[i])) {
+			err = PTR_ERR(innolux->enable_gpio[i]);
+			dev_err(dev, "failed to get enable gpio: %d\n", err);
+			innolux->enable_gpio[i] = NULL;
+		}
 	}
 
 	innolux->backlight = devm_of_find_backlight(dev);
-- 
2.21.0


WARNING: multiple messages have this Message-ID (diff)
From: Jitao Shi <jitao.shi@mediatek.com>
To: Sam Ravnborg <sam@ravnborg.org>, David Airlie <airlied@linux.ie>,
	Daniel Vetter <daniel@ffwll.ch>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Cc: Jitao Shi <jitao.shi@mediatek.com>,
	srv_heupstream@mediatek.com, stonea168@163.com,
	cawa.cheng@mediatek.com, yingjoe.chen@mediatek.com,
	eddie.huang@mediatek.com
Subject: [PATCH 1/3] drm/panel: panel-innolux: Allow 2 reset pins for panel
Date: Thu, 12 Sep 2019 17:04:02 +0800	[thread overview]
Message-ID: <20190912090404.89822-2-jitao.shi@mediatek.com> (raw)
In-Reply-To: <20190912090404.89822-1-jitao.shi@mediatek.com>

This is useful when there is a bridge between the SoC and the
panel.

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
 drivers/gpu/drm/panel/panel-innolux-p079zca.c | 39 ++++++++++++-------
 1 file changed, 24 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
index d92d1c98878c..8db404fb5eeb 100644
--- a/drivers/gpu/drm/panel/panel-innolux-p079zca.c
+++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
@@ -54,7 +54,7 @@ struct innolux_panel {
 
 	struct backlight_device *backlight;
 	struct regulator_bulk_data *supplies;
-	struct gpio_desc *enable_gpio;
+	struct gpio_desc *enable_gpio[2];
 
 	bool prepared;
 	bool enabled;
@@ -82,7 +82,7 @@ static int innolux_panel_disable(struct drm_panel *panel)
 static int innolux_panel_unprepare(struct drm_panel *panel)
 {
 	struct innolux_panel *innolux = to_innolux_panel(panel);
-	int err;
+	int err, i;
 
 	if (!innolux->prepared)
 		return 0;
@@ -102,7 +102,8 @@ static int innolux_panel_unprepare(struct drm_panel *panel)
 	if (innolux->desc->sleep_mode_delay)
 		msleep(innolux->desc->sleep_mode_delay);
 
-	gpiod_set_value_cansleep(innolux->enable_gpio, 0);
+	for (i = 0; i < ARRAY_SIZE(innolux->enable_gpio); i++)
+		gpiod_set_value_cansleep(innolux->enable_gpio[i], 0);
 
 	if (innolux->desc->power_down_delay)
 		msleep(innolux->desc->power_down_delay);
@@ -120,22 +121,27 @@ static int innolux_panel_unprepare(struct drm_panel *panel)
 static int innolux_panel_prepare(struct drm_panel *panel)
 {
 	struct innolux_panel *innolux = to_innolux_panel(panel);
-	int err;
+	int err, i;
 
 	if (innolux->prepared)
 		return 0;
 
-	gpiod_set_value_cansleep(innolux->enable_gpio, 0);
+	for (i = 0; i < ARRAY_SIZE(innolux->enable_gpio); i++)
+		gpiod_set_value_cansleep(innolux->enable_gpio[i], 0);
 
 	err = regulator_bulk_enable(innolux->desc->num_supplies,
 				    innolux->supplies);
 	if (err < 0)
 		return err;
 
-	/* p079zca: t2 (20ms), p097pfg: t4 (15ms) */
-	usleep_range(20000, 21000);
+	for (i = 0; i < ARRAY_SIZE(innolux->enable_gpio); i++) {
+		if (!innolux->enable_gpio[i])
+			break;
 
-	gpiod_set_value_cansleep(innolux->enable_gpio, 1);
+		/* p079zca: t2 (20ms), p097pfg: t4 (15ms) */
+		usleep_range(20000, 21000);
+		gpiod_set_value_cansleep(innolux->enable_gpio[i], 1);
+	}
 
 	/* p079zca: t4, p097pfg: t5 */
 	usleep_range(20000, 21000);
@@ -195,7 +201,8 @@ static int innolux_panel_prepare(struct drm_panel *panel)
 	return 0;
 
 poweroff:
-	gpiod_set_value_cansleep(innolux->enable_gpio, 0);
+	for (i = 0; i < ARRAY_SIZE(innolux->enable_gpio); i++)
+		gpiod_set_value_cansleep(innolux->enable_gpio[i], 0);
 	regulator_bulk_disable(innolux->desc->num_supplies, innolux->supplies);
 
 	return err;
@@ -475,12 +482,14 @@ static int innolux_panel_add(struct mipi_dsi_device *dsi,
 	if (err < 0)
 		return err;
 
-	innolux->enable_gpio = devm_gpiod_get_optional(dev, "enable",
-						       GPIOD_OUT_HIGH);
-	if (IS_ERR(innolux->enable_gpio)) {
-		err = PTR_ERR(innolux->enable_gpio);
-		dev_dbg(dev, "failed to get enable gpio: %d\n", err);
-		innolux->enable_gpio = NULL;
+	for (i = 0; i < ARRAY_SIZE(innolux->enable_gpio); i++) {
+		innolux->enable_gpio[i] = devm_gpiod_get_index_optional(dev,
+						"enable", i, GPIOD_OUT_HIGH);
+		if (IS_ERR(innolux->enable_gpio[i])) {
+			err = PTR_ERR(innolux->enable_gpio[i]);
+			dev_err(dev, "failed to get enable gpio: %d\n", err);
+			innolux->enable_gpio[i] = NULL;
+		}
 	}
 
 	innolux->backlight = devm_of_find_backlight(dev);
-- 
2.21.0

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

  reply	other threads:[~2019-09-12  9:04 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-12  9:04 [PATCH 0/3] add panel driver for innolux,p097pfg with ssd2825 bridge Jitao Shi
2019-09-12  9:04 ` Jitao Shi
2019-09-12  9:04 ` Jitao Shi [this message]
2019-09-12  9:04   ` [PATCH 1/3] drm/panel: panel-innolux: Allow 2 reset pins for panel Jitao Shi
2019-09-12  9:04 ` [PATCH 2/3] dt-bindings: display: Add documentation for innolux,p097pfg_ssd2858 panel Jitao Shi
2019-09-12  9:04   ` [PATCH 2/3] dt-bindings: display: Add documentation for innolux, p097pfg_ssd2858 panel Jitao Shi
2019-09-12  9:04 ` [PATCH 3/3] drm/panel: panel-innolux: Add support for P097PFZ behind SSD2858 Jitao Shi
2019-09-12  9:04   ` Jitao Shi
2019-09-16  4:27 ` [PATCH 0/3] add panel driver for innolux,p097pfg with ssd2825 bridge Nicolas Boichat
2019-09-16  4:27   ` [PATCH 0/3] add panel driver for innolux, p097pfg " Nicolas Boichat

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190912090404.89822-2-jitao.shi@mediatek.com \
    --to=jitao.shi@mediatek.com \
    --cc=airlied@linux.ie \
    --cc=bibby.hsieh@mediatek.com \
    --cc=cawa.cheng@mediatek.com \
    --cc=ck.hu@mediatek.com \
    --cc=daniel@ffwll.ch \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=eddie.huang@mediatek.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=sam@ravnborg.org \
    --cc=srv_heupstream@mediatek.com \
    --cc=stonea168@163.com \
    --cc=yingjoe.chen@mediatek.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.