drm/i915/dsi: remove unnecessary dsi device callbacks

Remove all the trivial and/or dummy callbacks from intel dsi device
ops. Merge send_otp_cmds into panel_reset as they're called back to
back.

This will be helpful for switching to use drm_panel for the
callbacks. If we ever need the additional callbacks, we should add them
to drm_panel funcs.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-By: Shobhit Kumar <shobhit.kumar@intel.com>
[danvet: Resolve tiny conflict with ongoing atomic work.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_dsi.c

@@ -70,12 +70,6 @@ static void band_gap_reset(struct drm_i915_private *dev_priv)
 	mutex_unlock(&dev_priv->dpio_lock);
 }
 
-static struct intel_dsi *intel_attached_dsi(struct drm_connector *connector)
-{
-	return container_of(intel_attached_encoder(connector),
-			    struct intel_dsi, base);
-}
-
 static inline bool is_vid_mode(struct intel_dsi *intel_dsi)
 {
 	return intel_dsi->operation_mode == INTEL_DSI_VIDEO_MODE;
@@ -99,7 +93,6 @@ static bool intel_dsi_compute_config(struct intel_encoder *encoder,
 	struct intel_connector *intel_connector = intel_dsi->attached_connector;
 	struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
 	struct drm_display_mode *adjusted_mode = &config->base.adjusted_mode;
-	struct drm_display_mode *mode = &config->base.mode;
 
 	DRM_DEBUG_KMS("\n");
 
@@ -109,10 +102,6 @@ static bool intel_dsi_compute_config(struct intel_encoder *encoder,
 	/* DSI uses short packets for sync events, so clear mode flags for DSI */
 	adjusted_mode->flags = 0;
 
-	if (intel_dsi->dev.dev_ops->mode_fixup)
-		return intel_dsi->dev.dev_ops->mode_fixup(&intel_dsi->dev,
-							  mode, adjusted_mode);
-
 	return true;
 }
 
@@ -269,9 +258,6 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder)
 	if (intel_dsi->dev.dev_ops->panel_reset)
 		intel_dsi->dev.dev_ops->panel_reset(&intel_dsi->dev);
 
-	if (intel_dsi->dev.dev_ops->send_otp_cmds)
-		intel_dsi->dev.dev_ops->send_otp_cmds(&intel_dsi->dev);
-
 	for_each_dsi_port(port, intel_dsi->ports)
 		wait_for_dsi_fifo_empty(intel_dsi, port);
 
@@ -484,7 +470,6 @@ intel_dsi_mode_valid(struct drm_connector *connector,
 {
 	struct intel_connector *intel_connector = to_intel_connector(connector);
 	struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
-	struct intel_dsi *intel_dsi = intel_attached_dsi(connector);
 
 	DRM_DEBUG_KMS("\n");
 
@@ -500,7 +485,7 @@ intel_dsi_mode_valid(struct drm_connector *connector,
 			return MODE_PANEL;
 	}
 
-	return intel_dsi->dev.dev_ops->mode_valid(&intel_dsi->dev, mode);
+	return MODE_OK;
 }
 
 /* return txclkesc cycles in terms of divider and duration in us */
@@ -749,20 +734,7 @@ static void intel_dsi_pre_pll_enable(struct intel_encoder *encoder)
 static enum drm_connector_status
 intel_dsi_detect(struct drm_connector *connector, bool force)
 {
-	struct intel_dsi *intel_dsi = intel_attached_dsi(connector);
-	struct intel_encoder *intel_encoder = &intel_dsi->base;
-	enum intel_display_power_domain power_domain;
-	enum drm_connector_status connector_status;
-	struct drm_i915_private *dev_priv = intel_encoder->base.dev->dev_private;
-
-	DRM_DEBUG_KMS("\n");
-	power_domain = intel_display_port_power_domain(intel_encoder);
-
-	intel_display_power_get(dev_priv, power_domain);
-	connector_status = intel_dsi->dev.dev_ops->detect(&intel_dsi->dev);
-	intel_display_power_put(dev_priv, power_domain);
-
-	return connector_status;
+	return connector_status_connected;
 }
 
 static int intel_dsi_get_modes(struct drm_connector *connector)

drivers/gpu/drm/i915/intel_dsi.h

@@ -47,33 +47,13 @@ struct intel_dsi_dev_ops {
 
 	void (*disable_panel_power)(struct intel_dsi_device *dsi);
 
-	/* one time programmable commands if needed */
-	void (*send_otp_cmds)(struct intel_dsi_device *dsi);
-
 	/* This callback must be able to assume DSI commands can be sent */
 	void (*enable)(struct intel_dsi_device *dsi);
 
 	/* This callback must be able to assume DSI commands can be sent */
 	void (*disable)(struct intel_dsi_device *dsi);
 
-	int (*mode_valid)(struct intel_dsi_device *dsi,
-			  struct drm_display_mode *mode);
-
-	bool (*mode_fixup)(struct intel_dsi_device *dsi,
-			   const struct drm_display_mode *mode,
-			   struct drm_display_mode *adjusted_mode);
-
-	void (*mode_set)(struct intel_dsi_device *dsi,
-			 struct drm_display_mode *mode,
-			 struct drm_display_mode *adjusted_mode);
-
-	enum drm_connector_status (*detect)(struct intel_dsi_device *dsi);
-
-	bool (*get_hw_state)(struct intel_dsi_device *dev);
-
 	struct drm_display_mode *(*get_modes)(struct intel_dsi_device *dsi);
-
-	void (*destroy) (struct intel_dsi_device *dsi);
 };
 
 struct intel_dsi {

drivers/gpu/drm/i915/intel_dsi_panel_vbt.c

@@ -559,18 +559,6 @@ static bool generic_init(struct intel_dsi_device *dsi)
 	return true;
 }
 
-static int generic_mode_valid(struct intel_dsi_device *dsi,
-		   struct drm_display_mode *mode)
-{
-	return MODE_OK;
-}
-
-static bool generic_mode_fixup(struct intel_dsi_device *dsi,
-		    const struct drm_display_mode *mode,
-		    struct drm_display_mode *adjusted_mode) {
-	return true;
-}
-
 static void generic_panel_reset(struct intel_dsi_device *dsi)
 {
 	struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev);
@@ -580,26 +568,18 @@ static void generic_panel_reset(struct intel_dsi_device *dsi)
 	char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_ASSERT_RESET];
 
 	generic_exec_sequence(intel_dsi, sequence);
-}
-
-static void generic_disable_panel_power(struct intel_dsi_device *dsi)
-{
-	struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev);
-	struct drm_device *dev = intel_dsi->base.base.dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
-
-	char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DEASSERT_RESET];
 
+	sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_INIT_OTP];
 	generic_exec_sequence(intel_dsi, sequence);
 }
 
-static void generic_send_otp_cmds(struct intel_dsi_device *dsi)
+static void generic_disable_panel_power(struct intel_dsi_device *dsi)
 {
 	struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev);
 	struct drm_device *dev = intel_dsi->base.base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
-	char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_INIT_OTP];
+	char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DEASSERT_RESET];
 
 	generic_exec_sequence(intel_dsi, sequence);
 }
@@ -626,16 +606,6 @@ static void generic_disable(struct intel_dsi_device *dsi)
 	generic_exec_sequence(intel_dsi, sequence);
 }
 
-static enum drm_connector_status generic_detect(struct intel_dsi_device *dsi)
-{
-	return connector_status_connected;
-}
-
-static bool generic_get_hw_state(struct intel_dsi_device *dev)
-{
-	return true;
-}
-
 static struct drm_display_mode *generic_get_modes(struct intel_dsi_device *dsi)
 {
 	struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev);
@@ -646,20 +616,11 @@ static struct drm_display_mode *generic_get_modes(struct intel_dsi_device *dsi)
 	return dev_priv->vbt.lfp_lvds_vbt_mode;
 }
 
-static void generic_destroy(struct intel_dsi_device *dsi) { }
-
-/* Callbacks. We might not need them all. */
 struct intel_dsi_dev_ops vbt_generic_dsi_display_ops = {
 	.init = generic_init,
-	.mode_valid = generic_mode_valid,
-	.mode_fixup = generic_mode_fixup,
 	.panel_reset = generic_panel_reset,
 	.disable_panel_power = generic_disable_panel_power,
-	.send_otp_cmds = generic_send_otp_cmds,
 	.enable = generic_enable,
 	.disable = generic_disable,
-	.detect = generic_detect,
-	.get_hw_state = generic_get_hw_state,
 	.get_modes = generic_get_modes,
-	.destroy = generic_destroy,
 };