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drm/panel: innolux-ej030na and abt-y030xx067a: add .enable and .disable

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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
This commit is contained in:
Christophe Branchereau 2022-03-21 14:36:51 +01:00 committed by Paul Cercueil
parent 49956b505c
commit a271bf3241
No known key found for this signature in database
GPG Key ID: 73EE6BD2274ABD41
2 changed files with 54 additions and 7 deletions
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30
drivers/gpu/drm/panel/panel-abt-y030xx067a.c
View File

@ -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)

31
drivers/gpu/drm/panel/panel-innolux-ej030na.c
View File

@ -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,
};