From bdb910047b5ca21f738d6735178704c424d2f680 Mon Sep 17 00:00:00 2001
From: Christophe Branchereau <cbranchereau@gmail.com>
Date: Mon, 21 Mar 2022 14:36:51 +0100
Subject: drm/panel: innolux-ej030na and abt-y030xx067a: add .enable and
.disable
Git-commit: a271bf324150846a253f5cf5406faf600bf64b0c
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Following the introduction of bridge_atomic_enable in the ingenic
drm driver, the crtc is enabled between .prepare and .enable, if
it exists. Add it so the backlight is only enabled after the crtc is, to
avoid graphical issues.
As we're moving the "sleep out" command out of the init sequence
into .enable for the ABT, we need to switch the regmap cache
to REGCACHE_FLAT to be able to use regmap_set_bits, given this
panel registers are write-ony and read as 0.
Signed-off-by: Christophe Branchereau <cbranchereau@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
[pcercuei: Remove empty line after opening brace]
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220321133651.291592-4-cbranchereau@gmail.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/panel/panel-abt-y030xx067a.c | 30 ++++++++++++++++--
drivers/gpu/drm/panel/panel-innolux-ej030na.c | 31 ++++++++++++++++---
2 files changed, 54 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-abt-y030xx067a.c b/drivers/gpu/drm/panel/panel-abt-y030xx067a.c
index f043b484055b..1f3fcd542113 100644
--- a/drivers/gpu/drm/panel/panel-abt-y030xx067a.c
+++ b/drivers/gpu/drm/panel/panel-abt-y030xx067a.c
@@ -140,7 +140,7 @@ static const struct reg_sequence y030xx067a_init_sequence[] = {
{ 0x03, REG03_VPOSITION(0x0a) },
{ 0x04, REG04_HPOSITION1(0xd2) },
{ 0x05, REG05_CLIP | REG05_NVM_VREFRESH | REG05_SLBRCHARGE(0x2) },
- { 0x06, REG06_XPSAVE | REG06_NT },
+ { 0x06, REG06_NT },
{ 0x07, 0 },
{ 0x08, REG08_PANEL(0x1) | REG08_CLOCK_DIV(0x2) },
{ 0x09, REG09_SUB_BRIGHT_R(0x20) },
@@ -183,8 +183,6 @@ static int y030xx067a_prepare(struct drm_panel *panel)
goto err_disable_regulator;
}
- msleep(120);
-
return 0;
err_disable_regulator:
@@ -202,6 +200,29 @@ static int y030xx067a_unprepare(struct drm_panel *panel)
return 0;
}
+static int y030xx067a_enable(struct drm_panel *panel)
+{
+ struct y030xx067a *priv = to_y030xx067a(panel);
+
+ regmap_set_bits(priv->map, 0x06, REG06_XPSAVE);
+
+ if (panel->backlight) {
+ /* Wait for the picture to be ready before enabling backlight */
+ msleep(120);
+ }
+
+ return 0;
+}
+
+static int y030xx067a_disable(struct drm_panel *panel)
+{
+ struct y030xx067a *priv = to_y030xx067a(panel);
+
+ regmap_clear_bits(priv->map, 0x06, REG06_XPSAVE);
+
+ return 0;
+}
+
static int y030xx067a_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
@@ -239,6 +260,8 @@ static int y030xx067a_get_modes(struct drm_panel *panel,
static const struct drm_panel_funcs y030xx067a_funcs = {
.prepare = y030xx067a_prepare,
.unprepare = y030xx067a_unprepare,
+ .enable = y030xx067a_enable,
+ .disable = y030xx067a_disable,
.get_modes = y030xx067a_get_modes,
};
@@ -246,6 +269,7 @@ static const struct regmap_config y030xx067a_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0x15,
+ .cache_type = REGCACHE_FLAT,
};
static int y030xx067a_probe(struct spi_device *spi)
diff --git a/drivers/gpu/drm/panel/panel-innolux-ej030na.c b/drivers/gpu/drm/panel/panel-innolux-ej030na.c
index c558de3f99be..6de7370185cd 100644
--- a/drivers/gpu/drm/panel/panel-innolux-ej030na.c
+++ b/drivers/gpu/drm/panel/panel-innolux-ej030na.c
@@ -80,8 +80,6 @@ static const struct reg_sequence ej030na_init_sequence[] = {
{ 0x47, 0x08 },
{ 0x48, 0x0f },
{ 0x49, 0x0f },
-
- { 0x2b, 0x01 },
};
static int ej030na_prepare(struct drm_panel *panel)
@@ -109,8 +107,6 @@ static int ej030na_prepare(struct drm_panel *panel)
goto err_disable_regulator;
}
- msleep(120);
-
return 0;
err_disable_regulator:
@@ -128,6 +124,31 @@ static int ej030na_unprepare(struct drm_panel *panel)
return 0;
}
+static int ej030na_enable(struct drm_panel *panel)
+{
+ struct ej030na *priv = to_ej030na(panel);
+
+ /* standby off */
+ regmap_write(priv->map, 0x2b, 0x01);
+
+ if (panel->backlight) {
+ /* Wait for the picture to be ready before enabling backlight */
+ msleep(120);
+ }
+
+ return 0;
+}
+
+static int ej030na_disable(struct drm_panel *panel)
+{
+ struct ej030na *priv = to_ej030na(panel);
+
+ /* standby on */
+ regmap_write(priv->map, 0x2b, 0x00);
+
+ return 0;
+}
+
static int ej030na_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
@@ -165,6 +186,8 @@ static int ej030na_get_modes(struct drm_panel *panel,
static const struct drm_panel_funcs ej030na_funcs = {
.prepare = ej030na_prepare,
.unprepare = ej030na_unprepare,
+ .enable = ej030na_enable,
+ .disable = ej030na_disable,
.get_modes = ej030na_get_modes,
};
--
2.38.1