drm/exynos: Rename display_op power_on to dpms

This patch renames the display_op power_on to dpms to accurately reflect
what the function does.

The side-effect of this patch is that the new hdmi dpms callback is now
invoked twice in the dpms path. This is safe and will be dealt with when
the exynos_drm shim goes away.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_drv.h

@@ -128,7 +128,7 @@ struct exynos_drm_overlay {
  * @get_edid: get edid modes from display driver.
  * @get_panel: get panel object from display driver.
  * @check_mode: check if mode is valid or not.
- * @power_on: display device on or off.
+ * @dpms: display device on or off.
  */
 struct exynos_drm_display_ops {
 	enum exynos_drm_output_type type;
@@ -138,7 +138,7 @@ struct exynos_drm_display_ops {
 			struct drm_connector *connector);
 	void *(*get_panel)(struct device *dev);
 	int (*check_mode)(struct device *dev, struct drm_display_mode *mode);
-	int (*power_on)(struct device *dev, int mode);
+	int (*dpms)(struct device *dev, int mode);
 };
 
 /*

drivers/gpu/drm/exynos/exynos_drm_encoder.c

@@ -50,8 +50,8 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
 		return;
 	}
 
-	if (display_ops && display_ops->power_on)
+	if (display_ops && display_ops->dpms)
-		display_ops->power_on(manager->ctx, mode);
+		display_ops->dpms(manager->ctx, mode);
 
 	exynos_encoder->dpms = mode;
 }

drivers/gpu/drm/exynos/exynos_drm_fimd.c

@@ -169,19 +169,11 @@ static int fimd_check_mode(struct device *dev, struct drm_display_mode *mode)
 	return 0;
 }
 
-static int fimd_display_power_on(struct device *dev, int mode)
-{
-	/* TODO */
-
-	return 0;
-}
-
 static struct exynos_drm_display_ops fimd_display_ops = {
 	.type = EXYNOS_DISPLAY_TYPE_LCD,
 	.is_connected = fimd_display_is_connected,
 	.get_panel = fimd_get_panel,
 	.check_mode = fimd_check_mode,
-	.power_on = fimd_display_power_on,
 };
 
 static int fimd_mgr_initialize(struct exynos_drm_manager *mgr,

drivers/gpu/drm/exynos/exynos_drm_hdmi.c

@@ -159,12 +159,12 @@ static int drm_hdmi_check_mode(struct device *dev,
 	return drm_hdmi_check_mode_ctx(ctx, mode);
 }
 
-static int drm_hdmi_power_on(struct device *dev, int mode)
+static int drm_hdmi_display_dpms(struct device *dev, int mode)
 {
 	struct drm_hdmi_context *ctx = to_context(dev);
 
-	if (hdmi_ops && hdmi_ops->power_on)
+	if (hdmi_ops && hdmi_ops->dpms)
-		return hdmi_ops->power_on(ctx->hdmi_ctx->ctx, mode);
+		hdmi_ops->dpms(ctx->hdmi_ctx->ctx, mode);
 
 	return 0;
 }
@@ -175,7 +175,7 @@ static struct exynos_drm_display_ops drm_hdmi_display_ops = {
 	.is_connected = drm_hdmi_is_connected,
 	.get_edid = drm_hdmi_get_edid,
 	.check_mode = drm_hdmi_check_mode,
-	.power_on = drm_hdmi_power_on,
+	.dpms = drm_hdmi_display_dpms,
 };
 
 static int drm_hdmi_enable_vblank(struct exynos_drm_manager *mgr)

drivers/gpu/drm/exynos/exynos_drm_hdmi.h

@@ -33,14 +33,13 @@ struct exynos_hdmi_ops {
 	struct edid *(*get_edid)(void *ctx,
 			struct drm_connector *connector);
 	int (*check_mode)(void *ctx, struct drm_display_mode *mode);
-	int (*power_on)(void *ctx, int mode);
+	void (*dpms)(void *ctx, int mode);
 
 	/* manager */
 	void (*mode_set)(void *ctx, struct drm_display_mode *mode);
 	void (*get_max_resol)(void *ctx, unsigned int *width,
 				unsigned int *height);
 	void (*commit)(void *ctx);
-	void (*dpms)(void *ctx, int mode);
 };
 
 struct exynos_mixer_ops {

drivers/gpu/drm/exynos/exynos_drm_vidi.c

@@ -136,20 +136,12 @@ static int vidi_check_mode(struct device *dev, struct drm_display_mode *mode)
 	return 0;
 }
 
-static int vidi_display_power_on(struct device *dev, int mode)
-{
-	/* TODO */
-
-	return 0;
-}
-
 static struct exynos_drm_display_ops vidi_display_ops = {
 	.type = EXYNOS_DISPLAY_TYPE_VIDI,
 	.is_connected = vidi_display_is_connected,
 	.get_edid = vidi_get_edid,
 	.get_panel = vidi_get_panel,
 	.check_mode = vidi_check_mode,
-	.power_on = vidi_display_power_on,
 };
 
 static void vidi_dpms(struct exynos_drm_manager *mgr, int mode)

drivers/gpu/drm/exynos/exynos_hdmi.c

@@ -1813,12 +1813,12 @@ static struct exynos_hdmi_ops hdmi_ops = {
 	.is_connected	= hdmi_is_connected,
 	.get_edid	= hdmi_get_edid,
 	.check_mode	= hdmi_check_mode,
+	.dpms		= hdmi_dpms,
 
 	/* manager */
 	.mode_set	= hdmi_mode_set,
 	.get_max_resol	= hdmi_get_max_resol,
 	.commit		= hdmi_commit,
-	.dpms		= hdmi_dpms,
 };
 
 static irqreturn_t hdmi_irq_thread(int irq, void *arg)