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From: Wadim Egorov <w.egorov@phytec.de>
To: <upstream@lists.phytec.de>, <linux-kernel@vger.kernel.org>,
	<dri-devel@lists.freedesktop.org>
Cc: <daniel@ffwll.ch>, <airlied@gmail.com>,
	<jernej.skrabec@gmail.com>, <jonas@kwiboo.se>,
	<Laurent.pinchart@ideasonboard.com>, <robert.foss@linaro.org>,
	<neil.armstrong@linaro.org>, <andrzej.hajda@intel.com>
Subject: [PATCH] drm/bridge: sii902x: Allow reset line to be tied to a sleepy GPIO controller
Date: Wed, 28 Dec 2022 15:57:04 +0100	[thread overview]
Message-ID: <20221228145704.939801-1-w.egorov@phytec.de> (raw)

Switch to gpiod_set_value_cansleep() in sii902x_reset().
This is relevant if the reset line is tied to a I2C GPIO
controller.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
---
 drivers/gpu/drm/bridge/sii902x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
index 878fb7d3732b..980611aec2f6 100644
--- a/drivers/gpu/drm/bridge/sii902x.c
+++ b/drivers/gpu/drm/bridge/sii902x.c
@@ -240,12 +240,12 @@ static void sii902x_reset(struct sii902x *sii902x)
 	if (!sii902x->reset_gpio)
 		return;
 
-	gpiod_set_value(sii902x->reset_gpio, 1);
+	gpiod_set_value_cansleep(sii902x->reset_gpio, 1);
 
 	/* The datasheet says treset-min = 100us. Make it 150us to be sure. */
 	usleep_range(150, 200);
 
-	gpiod_set_value(sii902x->reset_gpio, 0);
+	gpiod_set_value_cansleep(sii902x->reset_gpio, 0);
 }
 
 static enum drm_connector_status sii902x_detect(struct sii902x *sii902x)
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Wadim Egorov <w.egorov@phytec.de>
To: <upstream@lists.phytec.de>, <linux-kernel@vger.kernel.org>,
	<dri-devel@lists.freedesktop.org>
Cc: neil.armstrong@linaro.org, jernej.skrabec@gmail.com,
	andrzej.hajda@intel.com, jonas@kwiboo.se, robert.foss@linaro.org,
	Laurent.pinchart@ideasonboard.com
Subject: [PATCH] drm/bridge: sii902x: Allow reset line to be tied to a sleepy GPIO controller
Date: Wed, 28 Dec 2022 15:57:04 +0100	[thread overview]
Message-ID: <20221228145704.939801-1-w.egorov@phytec.de> (raw)

Switch to gpiod_set_value_cansleep() in sii902x_reset().
This is relevant if the reset line is tied to a I2C GPIO
controller.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
---
 drivers/gpu/drm/bridge/sii902x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
index 878fb7d3732b..980611aec2f6 100644
--- a/drivers/gpu/drm/bridge/sii902x.c
+++ b/drivers/gpu/drm/bridge/sii902x.c
@@ -240,12 +240,12 @@ static void sii902x_reset(struct sii902x *sii902x)
 	if (!sii902x->reset_gpio)
 		return;
 
-	gpiod_set_value(sii902x->reset_gpio, 1);
+	gpiod_set_value_cansleep(sii902x->reset_gpio, 1);
 
 	/* The datasheet says treset-min = 100us. Make it 150us to be sure. */
 	usleep_range(150, 200);
 
-	gpiod_set_value(sii902x->reset_gpio, 0);
+	gpiod_set_value_cansleep(sii902x->reset_gpio, 0);
 }
 
 static enum drm_connector_status sii902x_detect(struct sii902x *sii902x)
-- 
2.34.1


             reply	other threads:[~2022-12-28 14:57 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-28 14:57 Wadim Egorov [this message]
2022-12-28 14:57 ` [PATCH] drm/bridge: sii902x: Allow reset line to be tied to a sleepy GPIO controller Wadim Egorov
2022-12-30 15:39 ` Andrzej Hajda
2022-12-30 15:39   ` Andrzej Hajda
2023-01-19  7:41 ` Neil Armstrong
2023-01-19  7:41   ` Neil Armstrong

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