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.
Cc: Brian Norris <briannor...@chromium.org>
Cc: Chris Zhong <z...@rock-chips.com>
Cc: Nickey Yang <nickey.y...@rock-chips.com>
Cc: "Heiko Stübner" <he...@sntech.de>
Signed-off-by: Douglas Anderson <diand...@chromium.org>
---
Changes in v2:
- Only handle 1 panel per patch.
- Split removal of prepared/enabled from handling of remove/shutdown.
.../drm/panel/panel-kingdisplay-kd097d04.c | 31 -------------------
1 file changed, 31 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
index 17f8d80cf2b3..88d775e000d4 100644
--- a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
+++ b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
@@ -23,9 +23,6 @@ struct kingdisplay_panel {
struct regulator *supply;
struct gpio_desc *enable_gpio;
-
- bool prepared;
- bool enabled;
};
struct kingdisplay_panel_cmd {
@@ -185,15 +182,10 @@ static int kingdisplay_panel_disable(struct drm_panel
*panel)
struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
int err;
- if (!kingdisplay->enabled)
- return 0;
-
err = mipi_dsi_dcs_set_display_off(kingdisplay->link);
if (err < 0)
dev_err(panel->dev, "failed to set display off: %d\n", err);
- kingdisplay->enabled = false;
-
return 0;
}
@@ -202,9 +194,6 @@ static int kingdisplay_panel_unprepare(struct drm_panel
*panel)
struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
int err;
- if (!kingdisplay->prepared)
- return 0;
-
err = mipi_dsi_dcs_enter_sleep_mode(kingdisplay->link);
if (err < 0) {
dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);
@@ -220,8 +209,6 @@ static int kingdisplay_panel_unprepare(struct drm_panel
*panel)
if (err < 0)
return err;
- kingdisplay->prepared = false;
-
return 0;
}
@@ -231,9 +218,6 @@ static int kingdisplay_panel_prepare(struct drm_panel
*panel)
int err, regulator_err;
unsigned int i;
- if (kingdisplay->prepared)
- return 0;
-
gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
err = regulator_enable(kingdisplay->supply);
@@ -275,8 +259,6 @@ static int kingdisplay_panel_prepare(struct drm_panel
*panel)
/* T7: 10ms */
usleep_range(10000, 11000);
- kingdisplay->prepared = true;
-
return 0;
poweroff:
@@ -289,18 +271,6 @@ static int kingdisplay_panel_prepare(struct drm_panel
*panel)
return err;
}
-static int kingdisplay_panel_enable(struct drm_panel *panel)
-{
- struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
-
- if (kingdisplay->enabled)
- return 0;
-
- kingdisplay->enabled = true;
-
- return 0;
-}
-
static const struct drm_display_mode default_mode = {
.clock = 229000,
.hdisplay = 1536,
@@ -341,7 +311,6 @@ static const struct drm_panel_funcs kingdisplay_panel_funcs
= {
.disable = kingdisplay_panel_disable,
.unprepare = kingdisplay_panel_unprepare,
.prepare = kingdisplay_panel_prepare,
- .enable = kingdisplay_panel_enable,
.get_modes = kingdisplay_panel_get_modes,
};
--
2.45.0.rc1.225.g2a3ae87e7f-goog
