drm/panel: sharp-ls043t1le01: drop dummy functions and data fields

Drop sharp_nt_panel_disable() and sharp_nt_panel_enable(), which bear no
useful code. Also drop sharp_nt_panel::enable and sharp_nt_panel::mode
fields which also provide no use now.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230507172639.2320934-2-dmitry.baryshkov@linaro.org

Author: lumag

drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c

@@ -28,9 +28,6 @@ struct sharp_nt_panel {
 	struct gpio_desc *reset_gpio;
 
 	bool prepared;
-	bool enabled;
-
-	const struct drm_display_mode *mode;
 };
 
 static inline struct sharp_nt_panel *to_sharp_nt_panel(struct drm_panel *panel)
@@ -97,19 +94,6 @@ static int sharp_nt_panel_off(struct sharp_nt_panel *sharp_nt)
 	return 0;
 }
 
-
-static int sharp_nt_panel_disable(struct drm_panel *panel)
-{
-	struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
-
-	if (!sharp_nt->enabled)
-		return 0;
-
-	sharp_nt->enabled = false;
-
-	return 0;
-}
-
 static int sharp_nt_panel_unprepare(struct drm_panel *panel)
 {
 	struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
@@ -179,18 +163,6 @@ static int sharp_nt_panel_prepare(struct drm_panel *panel)
 	return ret;
 }
 
-static int sharp_nt_panel_enable(struct drm_panel *panel)
-{
-	struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
-
-	if (sharp_nt->enabled)
-		return 0;
-
-	sharp_nt->enabled = true;
-
-	return 0;
-}
-
 static const struct drm_display_mode default_mode = {
 	.clock = (540 + 48 + 32 + 80) * (960 + 3 + 10 + 15) * 60 / 1000,
 	.hdisplay = 540,
@@ -227,10 +199,8 @@ static int sharp_nt_panel_get_modes(struct drm_panel *panel,
 }
 
 static const struct drm_panel_funcs sharp_nt_panel_funcs = {
-	.disable = sharp_nt_panel_disable,
 	.unprepare = sharp_nt_panel_unprepare,
 	.prepare = sharp_nt_panel_prepare,
-	.enable = sharp_nt_panel_enable,
 	.get_modes = sharp_nt_panel_get_modes,
 };
 
@@ -239,8 +209,6 @@ static int sharp_nt_panel_add(struct sharp_nt_panel *sharp_nt)
 	struct device *dev = &sharp_nt->dsi->dev;
 	int ret;
 
-	sharp_nt->mode = &default_mode;
-
 	sharp_nt->supply = devm_regulator_get(dev, "avdd");
 	if (IS_ERR(sharp_nt->supply))
 		return PTR_ERR(sharp_nt->supply);