As talked about in commit d2aacaf07395 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
NOTE: as part of this, transition the panel's direct calls to its
disable function in shutdown/remove to call through DRM panel.
Cc: Vinay Simha BN <simhavcs@xxxxxxxxx>
Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Acked-by: Maxime Ripard <mripard@xxxxxxxxxx>
Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
---
Note: since we are able to identify that this panel only appears to be
used on Qualcomm boards and we have to touch the shutdown/remove path
in this patch anyway, we could possibly squash this with the next
patch that removes the disable call in shutdown/remove. For now I'm
keeping them separate just to keep the concepts separate.
(no changes since v2)
Changes in v2:
- Only handle 1 panel per patch.
- Split removal of prepared/enabled from handling of remove/shutdown.
.../gpu/drm/panel/panel-jdi-lt070me05000.c | 27 ++-----------------
1 file changed, 2 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
index f9a69f347068..4ddddee6fa1e 100644
--- a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
+++ b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
@@ -37,9 +37,6 @@ struct jdi_panel {
struct gpio_desc *dcdc_en_gpio;
struct backlight_device *backlight;
- bool prepared;
- bool enabled;
-
const struct drm_display_mode *mode;
};
@@ -176,13 +173,8 @@ static int jdi_panel_disable(struct drm_panel *panel)
{
struct jdi_panel *jdi = to_jdi_panel(panel);
- if (!jdi->enabled)
- return 0;
-
backlight_disable(jdi->backlight);
- jdi->enabled = false;
-
return 0;
}
@@ -192,9 +184,6 @@ static int jdi_panel_unprepare(struct drm_panel *panel)
struct device *dev = &jdi->dsi->dev;
int ret;
- if (!jdi->prepared)
- return 0;
-
jdi_panel_off(jdi);
ret = regulator_bulk_disable(ARRAY_SIZE(jdi->supplies), jdi->supplies);
@@ -207,8 +196,6 @@ static int jdi_panel_unprepare(struct drm_panel *panel)
gpiod_set_value(jdi->dcdc_en_gpio, 0);
- jdi->prepared = false;
-
return 0;
}
@@ -218,9 +205,6 @@ static int jdi_panel_prepare(struct drm_panel *panel)
struct device *dev = &jdi->dsi->dev;
int ret;
- if (jdi->prepared)
- return 0;
-
ret = regulator_bulk_enable(ARRAY_SIZE(jdi->supplies), jdi->supplies);
if (ret < 0) {
dev_err(dev, "regulator enable failed, %d\n", ret);
@@ -250,8 +234,6 @@ static int jdi_panel_prepare(struct drm_panel *panel)
goto poweroff;
}
- jdi->prepared = true;
-
return 0;
poweroff:
@@ -272,13 +254,8 @@ static int jdi_panel_enable(struct drm_panel *panel)
{
struct jdi_panel *jdi = to_jdi_panel(panel);
- if (jdi->enabled)
- return 0;
-
backlight_enable(jdi->backlight);
- jdi->enabled = true;
-
return 0;
}
@@ -475,7 +452,7 @@ static void jdi_panel_remove(struct mipi_dsi_device *dsi)
struct jdi_panel *jdi = mipi_dsi_get_drvdata(dsi);
int ret;
- ret = jdi_panel_disable(&jdi->base);
+ ret = drm_panel_disable(&jdi->base);
if (ret < 0)
dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);
@@ -491,7 +468,7 @@ static void jdi_panel_shutdown(struct mipi_dsi_device *dsi)
{
struct jdi_panel *jdi = mipi_dsi_get_drvdata(dsi);
- jdi_panel_disable(&jdi->base);
+ drm_panel_disable(&jdi->base);
}
static struct mipi_dsi_driver jdi_panel_driver = {
--
2.45.1.288.g0e0cd299f1-goog
