drm/panel: sharp-ls043t1le01: 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: Werner Johansson <werner.johansson@sonymobile.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@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.v3.19.I56849dbe7c906f0cff076dc5286fd05c7e3e9c18@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604172305.v3.19.I56849dbe7c906f0cff076dc5286fd05c7e3e9c18@changeid

diff --git a/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c b/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c
index 855e64444daa667b537864381df29ff7b3c984cd..c86337954ad7248cea6a25e7cac54df3b1b385ff 100644 (file)
--- a/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c
+++ b/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c
@@ -26,8 +26,6 @@ struct sharp_nt_panel {
 
        struct regulator *supply;
        struct gpio_desc *reset_gpio;
-
-       bool prepared;
 };
 
 static inline struct sharp_nt_panel *to_sharp_nt_panel(struct drm_panel *panel)
@@ -99,9 +97,6 @@ static int sharp_nt_panel_unprepare(struct drm_panel *panel)
        struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
        int ret;
 
-       if (!sharp_nt->prepared)
-               return 0;
-
        ret = sharp_nt_panel_off(sharp_nt);
        if (ret < 0) {
                dev_err(panel->dev, "failed to set panel off: %d\n", ret);
@@ -112,8 +107,6 @@ static int sharp_nt_panel_unprepare(struct drm_panel *panel)
        if (sharp_nt->reset_gpio)
                gpiod_set_value(sharp_nt->reset_gpio, 0);
 
-       sharp_nt->prepared = false;
-
        return 0;
 }
 
@@ -122,9 +115,6 @@ static int sharp_nt_panel_prepare(struct drm_panel *panel)
        struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
        int ret;
 
-       if (sharp_nt->prepared)
-               return 0;
-
        ret = regulator_enable(sharp_nt->supply);
        if (ret < 0)
                return ret;
@@ -152,8 +142,6 @@ static int sharp_nt_panel_prepare(struct drm_panel *panel)
                goto poweroff;
        }
 
-       sharp_nt->prepared = true;
-
        return 0;
 
 poweroff: