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_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index f0c11ae..2a0f5d3 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -731,7 +731,7 @@ static void intel_dsi_port_disable(struct intel_encoder *encoder)
}
static void intel_dsi_prepare(struct intel_encoder *intel_encoder,
- struct intel_crtc_state *pipe_config);
+ const struct intel_crtc_state *pipe_config);
static void intel_dsi_unprepare(struct intel_encoder *encoder);
static void intel_dsi_msleep(struct intel_dsi *intel_dsi, int msec)
@@ -783,8 +783,8 @@ static void intel_dsi_msleep(struct intel_dsi *intel_dsi, int msec)
*/
static void intel_dsi_pre_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)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
@@ -878,8 +878,8 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder,
* the pre_enable hook.
*/
static void intel_dsi_enable_nop(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)
{
DRM_DEBUG_KMS("\n");
}
@@ -889,8 +889,8 @@ static void intel_dsi_enable_nop(struct intel_encoder *encoder,
* the post_disable hook.
*/
static void intel_dsi_disable(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 drm_device *dev = encoder->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -936,8 +936,8 @@ static void intel_dsi_clear_device_ready(struct intel_encoder *encoder)
}
static void intel_dsi_post_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)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
@@ -1077,7 +1077,7 @@ static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,
}
static void bxt_dsi_get_pipe_config(struct intel_encoder *encoder,
- struct intel_crtc_state *pipe_config)
+ struct intel_crtc_state *pipe_config)
{
struct drm_device *dev = encoder->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
@@ -1381,7 +1381,7 @@ static u32 pixel_format_to_reg(enum mipi_dsi_pixel_format fmt)
}
static void intel_dsi_prepare(struct intel_encoder *intel_encoder,
- struct intel_crtc_state *pipe_config)
+ const struct intel_crtc_state *pipe_config)
{
struct drm_encoder *encoder = &intel_encoder->base;
struct drm_device *dev = encoder->dev;