target/linux/d1/patches-6.1/0108-drm-panel-cwd686-Add-regulators.patch

   1 From 979271f803c1578087a965a2a4b845c87e7d922f Mon Sep 17 00:00:00 2001
   2 From: Samuel Holland <samuel@sholland.org>
   3 Date: Sun, 7 Aug 2022 19:14:21 -0500
   4 Subject: [PATCH 108/117] drm: panel: cwd686: Add regulators
   5
   6 Signed-off-by: Samuel Holland <samuel@sholland.org>
   7 ---
   8  .../gpu/drm/panel/panel-clockwork-cwd686.c    | 26 ++++++++++++++++++-
   9  1 file changed, 25 insertions(+), 1 deletion(-)
  10
  11 --- a/drivers/gpu/drm/panel/panel-clockwork-cwd686.c
  12 +++ b/drivers/gpu/drm/panel/panel-clockwork-cwd686.c
  13 @@ -20,7 +20,8 @@
  14  struct cwd686 {
  15         struct device *dev;
  16         struct drm_panel panel;
  17 -       struct regulator *supply;
  18 +       struct regulator *iovcc;
  19 +       struct regulator *vci;
  20         struct gpio_desc *enable_gpio;
  21         struct gpio_desc *reset_gpio;
  22         struct backlight_device *backlight;
  23 @@ -279,6 +280,9 @@ static int cwd686_unprepare(struct drm_p
  24
  25         gpiod_set_value_cansleep(ctx->reset_gpio, 1);
  26
  27 +       regulator_disable(ctx->vci);
  28 +       regulator_disable(ctx->iovcc);
  29 +
  30         ctx->prepared = false;
  31
  32         return 0;
  33 @@ -293,6 +297,18 @@ static int cwd686_prepare(struct drm_pan
  34         if (ctx->prepared)
  35                 return 0;
  36
  37 +       err = regulator_enable(ctx->iovcc);
  38 +       if (err) {
  39 +               dev_err(ctx->dev, "failed to enable iovcc (%d)\n", err);
  40 +               return err;
  41 +       }
  42 +
  43 +       err = regulator_enable(ctx->vci);
  44 +       if (err) {
  45 +               dev_err(ctx->dev, "failed to enable vci (%d)\n", err);
  46 +               return err;
  47 +       }
  48 +
  49         gpiod_set_value_cansleep(ctx->reset_gpio, 1);
  50         /* T2 */
  51         msleep(10);
  52 @@ -402,6 +418,14 @@ static int cwd686_probe(struct mipi_dsi_
  53                 return err;
  54         }
  55
  56 +       ctx->iovcc = devm_regulator_get(dev, "iovcc");
  57 +       if (IS_ERR(ctx->iovcc))
  58 +               return PTR_ERR(ctx->iovcc);
  59 +
  60 +       ctx->vci = devm_regulator_get(dev, "vci");
  61 +       if (IS_ERR(ctx->vci))
  62 +               return PTR_ERR(ctx->vci);
  63 +
  64         ctx->backlight = devm_of_find_backlight(dev);
  65         if (IS_ERR(ctx->backlight))
  66                 return PTR_ERR(ctx->backlight);