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drm/i915/psr: Don't avoid PSR when PSR2 conditions are not met.

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We can still use PSR1 when PSR2 conditions are not met.

So, let's split the check in a way that we make sure has_psr
gets set independently of PSR2 criteria.

v2: Duh! Handle proper return to avoid breaking PSR2.
v3: (DK):
	- better name for psr2 conditions check function
	- Don't remove FIXME block and psr2.support check.
	- Add a debug message to show us what PSR or PSR2 is
	  getting enabled now we have ways to enabled PSR on
	  PSR2 panels.
	- s/PSR2 disabled/PSR2 not enabled

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180227212913.14083-2-rodrigo.vivi@intel.com
This commit is contained in:
Rodrigo Vivi 2018-02-27 13:29:13 -08:00
parent 8cef3e5c0d
commit c4932d7956
1 changed files with 37 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
drivers/gpu/drm/i915/intel_psr.c
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@ -446,6 +446,41 @@ static void hsw_psr_activate(struct intel_dp *intel_dp)
hsw_activate_psr1(intel_dp);
}
static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
struct intel_crtc_state *crtc_state)
{
struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
const struct drm_display_mode *adjusted_mode =
&crtc_state->base.adjusted_mode;
/*
* FIXME psr2_support is messed up. It's both computed
* dynamically during PSR enable, and extracted from sink
* caps during eDP detection.
*/
if (!dev_priv->psr.psr2_support)
return false;
/* PSR2 is restricted to work with panel resolutions up to 3640x2304 */
if (adjusted_mode->crtc_hdisplay > 3640 ||
adjusted_mode->crtc_vdisplay > 2304) {
DRM_DEBUG_KMS("PSR2 not enabled, panel resolution too big\n");
return false;
}
/*
* FIXME:enable psr2 only for y-cordinate psr2 panels
* After gtc implementation , remove this restriction.
*/
if (!dev_priv->psr.y_cord_support) {
DRM_DEBUG_KMS("PSR2 not enabled, panel does not support Y coordinate\n");
return false;
}
return true;
}
void intel_psr_compute_config(struct intel_dp *intel_dp,
struct intel_crtc_state *crtc_state)
{
@ -513,34 +548,9 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
return;
}
/*
* FIXME psr2_support is messed up. It's both computed
* dynamically during PSR enable, and extracted from sink
* caps during eDP detection.
*/
if (!dev_priv->psr.psr2_support) {
crtc_state->has_psr = true;
return;
}
/* PSR2 is restricted to work with panel resolutions up to 3640x2304 */
if (adjusted_mode->crtc_hdisplay > 3640 ||
adjusted_mode->crtc_vdisplay > 2304) {
DRM_DEBUG_KMS("PSR2 disabled, panel resolution too big\n");
return;
}
/*
* FIXME:enable psr2 only for y-cordinate psr2 panels
* After gtc implementation , remove this restriction.
*/
if (!dev_priv->psr.y_cord_support) {
DRM_DEBUG_KMS("PSR2 disabled, panel does not support Y coordinate\n");
return;
}
crtc_state->has_psr = true;
crtc_state->has_psr2 = true;
crtc_state->has_psr2 = intel_psr2_config_valid(intel_dp, crtc_state);
DRM_DEBUG_KMS("Enabling PSR%s\n", crtc_state->has_psr2 ? "2" : "");
}
static void intel_psr_activate(struct intel_dp *intel_dp)