drm/i915: Constify states passed to enable/disable/etc. encoder hooks
The enable/disable/etc. encoder hooks aren't supposed to alter the
state(s), so pass them as const. Unfortunately C lacks any kind of deep
const thingy, so this can't catch all abuses. But at least it acts as a
hint to the reader telling them not to mess about with the state(s).
v2: Update intel_tv_mode_find() and ironlake_edp_pll_on() as well
v3: Deal with intel_sdvo_connector_state
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170818134958.15502-9-ville.syrjala@linux.intel.com
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index dc5b106..d3e5fdf 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1861,7 +1861,7 @@ void intel_dp_set_link_params(struct intel_dp *intel_dp,
}
static void intel_dp_prepare(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config)
+ const struct intel_crtc_state *pipe_config)
{
struct drm_device *dev = encoder->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
@@ -2461,7 +2461,7 @@ static void assert_edp_pll(struct drm_i915_private *dev_priv, bool state)
#define assert_edp_pll_disabled(d) assert_edp_pll((d), false)
static void ironlake_edp_pll_on(struct intel_dp *intel_dp,
- struct intel_crtc_state *pipe_config)
+ const struct intel_crtc_state *pipe_config)
{
struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
@@ -2688,8 +2688,8 @@ static void intel_dp_get_config(struct intel_encoder *encoder,
}
static void intel_disable_dp(struct intel_encoder *encoder,
- struct intel_crtc_state *old_crtc_state,
- struct drm_connector_state *old_conn_state)
+ const struct intel_crtc_state *old_crtc_state,
+ const struct drm_connector_state *old_conn_state)
{
struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
@@ -2713,8 +2713,8 @@ static void intel_disable_dp(struct intel_encoder *encoder,
}
static void ilk_post_disable_dp(struct intel_encoder *encoder,
- struct intel_crtc_state *old_crtc_state,
- struct drm_connector_state *old_conn_state)
+ const struct intel_crtc_state *old_crtc_state,
+ const struct drm_connector_state *old_conn_state)
{
struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
enum port port = dp_to_dig_port(intel_dp)->port;
@@ -2727,8 +2727,8 @@ static void ilk_post_disable_dp(struct intel_encoder *encoder,
}
static void vlv_post_disable_dp(struct intel_encoder *encoder,
- struct intel_crtc_state *old_crtc_state,
- struct drm_connector_state *old_conn_state)
+ const struct intel_crtc_state *old_crtc_state,
+ const struct drm_connector_state *old_conn_state)
{
struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
@@ -2736,8 +2736,8 @@ static void vlv_post_disable_dp(struct intel_encoder *encoder,
}
static void chv_post_disable_dp(struct intel_encoder *encoder,
- struct intel_crtc_state *old_crtc_state,
- struct drm_connector_state *old_conn_state)
+ const struct intel_crtc_state *old_crtc_state,
+ const struct drm_connector_state *old_conn_state)
{
struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
struct drm_device *dev = encoder->base.dev;
@@ -2842,7 +2842,7 @@ _intel_dp_set_link_train(struct intel_dp *intel_dp,
}
static void intel_dp_enable_port(struct intel_dp *intel_dp,
- struct intel_crtc_state *old_crtc_state)
+ const struct intel_crtc_state *old_crtc_state)
{
struct drm_device *dev = intel_dp_to_dev(intel_dp);
struct drm_i915_private *dev_priv = to_i915(dev);
@@ -2866,8 +2866,8 @@ static void intel_dp_enable_port(struct intel_dp *intel_dp,
}
static void intel_enable_dp(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config,
- struct drm_connector_state *conn_state)
+ const struct intel_crtc_state *pipe_config,
+ const struct drm_connector_state *conn_state)
{
struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
struct drm_device *dev = encoder->base.dev;
@@ -2914,16 +2914,16 @@ static void intel_enable_dp(struct intel_encoder *encoder,
}
static void g4x_enable_dp(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config,
- struct drm_connector_state *conn_state)
+ const struct intel_crtc_state *pipe_config,
+ const struct drm_connector_state *conn_state)
{
intel_enable_dp(encoder, pipe_config, conn_state);
intel_edp_backlight_on(pipe_config, conn_state);
}
static void vlv_enable_dp(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config,
- struct drm_connector_state *conn_state)
+ const struct intel_crtc_state *pipe_config,
+ const struct drm_connector_state *conn_state)
{
struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
@@ -2932,8 +2932,8 @@ static void vlv_enable_dp(struct intel_encoder *encoder,
}
static void g4x_pre_enable_dp(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config,
- struct drm_connector_state *conn_state)
+ const struct intel_crtc_state *pipe_config,
+ const struct drm_connector_state *conn_state)
{
struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
enum port port = dp_to_dig_port(intel_dp)->port;
@@ -3055,8 +3055,8 @@ static void vlv_init_panel_power_sequencer(struct intel_dp *intel_dp)
}
static void vlv_pre_enable_dp(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config,
- struct drm_connector_state *conn_state)
+ const struct intel_crtc_state *pipe_config,
+ const struct drm_connector_state *conn_state)
{
vlv_phy_pre_encoder_enable(encoder);
@@ -3064,8 +3064,8 @@ static void vlv_pre_enable_dp(struct intel_encoder *encoder,
}
static void vlv_dp_pre_pll_enable(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config,
- struct drm_connector_state *conn_state)
+ const struct intel_crtc_state *pipe_config,
+ const struct drm_connector_state *conn_state)
{
intel_dp_prepare(encoder, pipe_config);
@@ -3073,8 +3073,8 @@ static void vlv_dp_pre_pll_enable(struct intel_encoder *encoder,
}
static void chv_pre_enable_dp(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config,
- struct drm_connector_state *conn_state)
+ const struct intel_crtc_state *pipe_config,
+ const struct drm_connector_state *conn_state)
{
chv_phy_pre_encoder_enable(encoder);
@@ -3085,8 +3085,8 @@ static void chv_pre_enable_dp(struct intel_encoder *encoder,
}
static void chv_dp_pre_pll_enable(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config,
- struct drm_connector_state *conn_state)
+ const struct intel_crtc_state *pipe_config,
+ const struct drm_connector_state *conn_state)
{
intel_dp_prepare(encoder, pipe_config);
@@ -3094,8 +3094,8 @@ static void chv_dp_pre_pll_enable(struct intel_encoder *encoder,
}
static void chv_dp_post_pll_disable(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config,
- struct drm_connector_state *conn_state)
+ const struct intel_crtc_state *pipe_config,
+ const struct drm_connector_state *conn_state)
{
chv_phy_post_pll_disable(encoder);
}
@@ -5450,7 +5450,7 @@ static void intel_dp_pps_init(struct drm_device *dev,
* The caller of this function needs to take a lock on dev_priv->drrs.
*/
static void intel_dp_set_drrs_state(struct drm_i915_private *dev_priv,
- struct intel_crtc_state *crtc_state,
+ const struct intel_crtc_state *crtc_state,
int refresh_rate)
{
struct intel_encoder *encoder;
@@ -5547,7 +5547,7 @@ static void intel_dp_set_drrs_state(struct drm_i915_private *dev_priv,
* Initializes frontbuffer_bits and drrs.dp
*/
void intel_edp_drrs_enable(struct intel_dp *intel_dp,
- struct intel_crtc_state *crtc_state)
+ const struct intel_crtc_state *crtc_state)
{
struct drm_device *dev = intel_dp_to_dev(intel_dp);
struct drm_i915_private *dev_priv = to_i915(dev);
@@ -5578,7 +5578,7 @@ void intel_edp_drrs_enable(struct intel_dp *intel_dp,
*
*/
void intel_edp_drrs_disable(struct intel_dp *intel_dp,
- struct intel_crtc_state *old_crtc_state)
+ const struct intel_crtc_state *old_crtc_state)
{
struct drm_device *dev = intel_dp_to_dev(intel_dp);
struct drm_i915_private *dev_priv = to_i915(dev);