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20ea6adbf1
Build system: x86_64 Build-tested: bcm2708, bcm2709, bcm2710, bcm2711 Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B Signed-off-by: Marty Jones <mj8263788@gmail.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
68 lines
2.1 KiB
Diff
68 lines
2.1 KiB
Diff
From 0c891e692cd3f1927d1f565650b90fe4890c1fd4 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Thu, 15 Apr 2021 17:30:35 +0100
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Subject: [PATCH] drm/panel: jdi-lt070me05000: Use
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gpiod_set_value_cansleep
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There is no reason why the control GPIOs for the panel can not
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be connected to I2C or similar GPIO interfaces that may need to
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sleep, therefore switch from gpiod_set_value to
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gpiod_set_value_cansleep calls to configure them.
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Without that you get complaints from gpiolib every time the state
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is changed.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/panel/panel-jdi-lt070me05000.c | 18 +++++++++---------
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1 file changed, 9 insertions(+), 9 deletions(-)
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--- a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
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+++ b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
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@@ -205,11 +205,11 @@ static int jdi_panel_unprepare(struct dr
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if (ret < 0)
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dev_err(dev, "regulator disable failed, %d\n", ret);
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- gpiod_set_value(jdi->enable_gpio, 0);
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+ gpiod_set_value_cansleep(jdi->enable_gpio, 0);
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- gpiod_set_value(jdi->reset_gpio, 1);
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+ gpiod_set_value_cansleep(jdi->reset_gpio, 1);
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- gpiod_set_value(jdi->dcdc_en_gpio, 0);
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+ gpiod_set_value_cansleep(jdi->dcdc_en_gpio, 0);
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jdi->prepared = false;
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@@ -233,13 +233,13 @@ static int jdi_panel_prepare(struct drm_
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msleep(20);
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- gpiod_set_value(jdi->dcdc_en_gpio, 1);
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+ gpiod_set_value_cansleep(jdi->dcdc_en_gpio, 1);
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usleep_range(10, 20);
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- gpiod_set_value(jdi->reset_gpio, 0);
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+ gpiod_set_value_cansleep(jdi->reset_gpio, 0);
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usleep_range(10, 20);
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- gpiod_set_value(jdi->enable_gpio, 1);
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+ gpiod_set_value_cansleep(jdi->enable_gpio, 1);
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usleep_range(10, 20);
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ret = jdi_panel_init(jdi);
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@@ -263,11 +263,11 @@ poweroff:
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if (ret < 0)
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dev_err(dev, "regulator disable failed, %d\n", ret);
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- gpiod_set_value(jdi->enable_gpio, 0);
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+ gpiod_set_value_cansleep(jdi->enable_gpio, 0);
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- gpiod_set_value(jdi->reset_gpio, 1);
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+ gpiod_set_value_cansleep(jdi->reset_gpio, 1);
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- gpiod_set_value(jdi->dcdc_en_gpio, 0);
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+ gpiod_set_value_cansleep(jdi->dcdc_en_gpio, 0);
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return ret;
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}
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