drm/panel: tdo-tl070wsh30: Stop tracking prepared

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: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240604172305.v3.9.I5025ab14adc2efeef1be1843648547fb725106be@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604172305.v3.9.I5025ab14adc2efeef1be1843648547fb725106be@changeid

diff --git a/drivers/gpu/drm/panel/panel-tdo-tl070wsh30.c b/drivers/gpu/drm/panel/panel-tdo-tl070wsh30.c
index d8487bc6d61131f819d300ddda21e971b979b312..36f27c664b69f5f723ad33258a52fffac02a09ad 100644 (file)
--- a/drivers/gpu/drm/panel/panel-tdo-tl070wsh30.c
+++ b/drivers/gpu/drm/panel/panel-tdo-tl070wsh30.c
@@ -24,8 +24,6 @@ struct tdo_tl070wsh30_panel {
 
        struct regulator *supply;
        struct gpio_desc *reset_gpio;
-
-       bool prepared;
 };
 
 static inline
@@ -39,9 +37,6 @@ static int tdo_tl070wsh30_panel_prepare(struct drm_panel *panel)
        struct tdo_tl070wsh30_panel *tdo_tl070wsh30 = to_tdo_tl070wsh30_panel(panel);
        int err;
 
-       if (tdo_tl070wsh30->prepared)
-               return 0;
-
        err = regulator_enable(tdo_tl070wsh30->supply);
        if (err < 0)
                return err;
@@ -74,8 +69,6 @@ static int tdo_tl070wsh30_panel_prepare(struct drm_panel *panel)
 
        msleep(20);
 
-       tdo_tl070wsh30->prepared = true;
-
        return 0;
 }
 
@@ -84,9 +77,6 @@ static int tdo_tl070wsh30_panel_unprepare(struct drm_panel *panel)
        struct tdo_tl070wsh30_panel *tdo_tl070wsh30 = to_tdo_tl070wsh30_panel(panel);
        int err;
 
-       if (!tdo_tl070wsh30->prepared)
-               return 0;
-
        err = mipi_dsi_dcs_set_display_off(tdo_tl070wsh30->link);
        if (err < 0)
                dev_err(panel->dev, "failed to set display off: %d\n", err);
@@ -103,8 +93,6 @@ static int tdo_tl070wsh30_panel_unprepare(struct drm_panel *panel)
 
        regulator_disable(tdo_tl070wsh30->supply);
 
-       tdo_tl070wsh30->prepared = false;
-
        return 0;
 }