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