target/linux/bcm27xx/patches-5.10/950-0570-drm-panel-jdi-lt070me05000-Use-gpiod_set_value_cansl.patch

   1 From ec29b05b2da1d82d03730e0ac317efd3a7e97759 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Thu, 15 Apr 2021 17:30:35 +0100
   4 Subject: [PATCH] drm/panel: jdi-lt070me05000: Use
   5  gpiod_set_value_cansleep
   6
   7 There is no reason why the control GPIOs for the panel can not
   8 be connected to I2C or similar GPIO interfaces that may need to
   9 sleep, therefore switch from gpiod_set_value to
  10 gpiod_set_value_cansleep calls to configure them.
  11 Without that you get complaints from gpiolib every time the state
  12 is changed.
  13
  14 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  15 ---
  16  drivers/gpu/drm/panel/panel-jdi-lt070me05000.c | 18 +++++++++---------
  17  1 file changed, 9 insertions(+), 9 deletions(-)
  18
  19 --- a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
  20 +++ b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
  21 @@ -205,11 +205,11 @@ static int jdi_panel_unprepare(struct dr
  22         if (ret < 0)
  23                 dev_err(dev, "regulator disable failed, %d\n", ret);
  24
  25 -       gpiod_set_value(jdi->enable_gpio, 0);
  26 +       gpiod_set_value_cansleep(jdi->enable_gpio, 0);
  27
  28 -       gpiod_set_value(jdi->reset_gpio, 1);
  29 +       gpiod_set_value_cansleep(jdi->reset_gpio, 1);
  30
  31 -       gpiod_set_value(jdi->dcdc_en_gpio, 0);
  32 +       gpiod_set_value_cansleep(jdi->dcdc_en_gpio, 0);
  33
  34         jdi->prepared = false;
  35
  36 @@ -233,13 +233,13 @@ static int jdi_panel_prepare(struct drm_
  37
  38         msleep(20);
  39
  40 -       gpiod_set_value(jdi->dcdc_en_gpio, 1);
  41 +       gpiod_set_value_cansleep(jdi->dcdc_en_gpio, 1);
  42         usleep_range(10, 20);
  43
  44 -       gpiod_set_value(jdi->reset_gpio, 0);
  45 +       gpiod_set_value_cansleep(jdi->reset_gpio, 0);
  46         usleep_range(10, 20);
  47
  48 -       gpiod_set_value(jdi->enable_gpio, 1);
  49 +       gpiod_set_value_cansleep(jdi->enable_gpio, 1);
  50         usleep_range(10, 20);
  51
  52         ret = jdi_panel_init(jdi);
  53 @@ -263,11 +263,11 @@ poweroff:
  54         if (ret < 0)
  55                 dev_err(dev, "regulator disable failed, %d\n", ret);
  56
  57 -       gpiod_set_value(jdi->enable_gpio, 0);
  58 +       gpiod_set_value_cansleep(jdi->enable_gpio, 0);
  59
  60 -       gpiod_set_value(jdi->reset_gpio, 1);
  61 +       gpiod_set_value_cansleep(jdi->reset_gpio, 1);
  62
  63 -       gpiod_set_value(jdi->dcdc_en_gpio, 0);
  64 +       gpiod_set_value_cansleep(jdi->dcdc_en_gpio, 0);
  65
  66         return ret;
  67  }