drm/panel: osd-osd101t2587-53ts: Stop tracking prepared/enabled

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: Peter Ujfalusi <peter.ujfalusi@ti.com>
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.v3.7.Ic7f6b4ae48027668940a756090cfc454645d3da4@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604172305.v3.7.Ic7f6b4ae48027668940a756090cfc454645d3da4@changeid

diff --git a/drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.c b/drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.c
index 493e0504f6f727dbeaccc459abf10973b02bda82..c0da7d9512e88b6c6e6535755cb4a884fabaa293 100644 (file)
--- a/drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.c
+++ b/drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.c
@@ -21,9 +21,6 @@ struct osd101t2587_panel {
 
        struct regulator *supply;
 
-       bool prepared;
-       bool enabled;
-
        const struct drm_display_mode *default_mode;
 };
 
@@ -37,13 +34,8 @@ static int osd101t2587_panel_disable(struct drm_panel *panel)
        struct osd101t2587_panel *osd101t2587 = ti_osd_panel(panel);
        int ret;
 
-       if (!osd101t2587->enabled)
-               return 0;
-
        ret = mipi_dsi_shutdown_peripheral(osd101t2587->dsi);
 
-       osd101t2587->enabled = false;
-
        return ret;
 }
 
@@ -51,11 +43,7 @@ static int osd101t2587_panel_unprepare(struct drm_panel *panel)
 {
        struct osd101t2587_panel *osd101t2587 = ti_osd_panel(panel);
 
-       if (!osd101t2587->prepared)
-               return 0;
-
        regulator_disable(osd101t2587->supply);
-       osd101t2587->prepared = false;
 
        return 0;
 }
@@ -63,16 +51,8 @@ static int osd101t2587_panel_unprepare(struct drm_panel *panel)
 static int osd101t2587_panel_prepare(struct drm_panel *panel)
 {
        struct osd101t2587_panel *osd101t2587 = ti_osd_panel(panel);
-       int ret;
 
-       if (osd101t2587->prepared)
-               return 0;
-
-       ret = regulator_enable(osd101t2587->supply);
-       if (!ret)
-               osd101t2587->prepared = true;
-
-       return ret;
+       return regulator_enable(osd101t2587->supply);
 }
 
 static int osd101t2587_panel_enable(struct drm_panel *panel)
@@ -80,15 +60,10 @@ static int osd101t2587_panel_enable(struct drm_panel *panel)
        struct osd101t2587_panel *osd101t2587 = ti_osd_panel(panel);
        int ret;
 
-       if (osd101t2587->enabled)
-               return 0;
-
        ret = mipi_dsi_turn_on_peripheral(osd101t2587->dsi);
        if (ret)
                return ret;
 
-       osd101t2587->enabled = true;
-
        return ret;
 }