2013/7/11 Rodrigo Vivi <rodrigo.v...@gmail.com>:
> Required function to disable PSR when going to console mode.
> But also can be used whenever PSR mode entry conditions changed.
>
> v2: Add it before PSR Hook. Update function not really been called yet.
> v3: Fix coding style detected by checkpatch by Paulo Zanoni.
> v4: do_enable must be static as Paulo noticed.
>
> Cc: Paulo Zanoni <paulo.r.zan...@intel.com>
> Signed-off-by: Rodrigo Vivi <rodrigo.v...@gmail.com>
Even though we can improve the loops and other things with
pipe_config, this patch seems to work, so:
Reviewed-by: Paulo Zanoni <paulo.r.zan...@intel.com>
We can still do the reworks later.
> ---
> drivers/gpu/drm/i915/intel_dp.c | 31 ++++++++++++++++++++++++++++++-
> drivers/gpu/drm/i915/intel_drv.h | 1 +
> 2 files changed, 31 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index c0bd887..c0870a69 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -1568,7 +1568,7 @@ static bool intel_edp_psr_match_conditions(struct
> intel_dp *intel_dp)
> return true;
> }
>
> -void intel_edp_psr_enable(struct intel_dp *intel_dp)
> +static void intel_edp_psr_do_enable(struct intel_dp *intel_dp)
> {
> struct drm_device *dev = intel_dp_to_dev(intel_dp);
>
> @@ -1586,6 +1586,15 @@ void intel_edp_psr_enable(struct intel_dp *intel_dp)
> intel_edp_psr_enable_source(intel_dp);
> }
>
> +void intel_edp_psr_enable(struct intel_dp *intel_dp)
> +{
> + struct drm_device *dev = intel_dp_to_dev(intel_dp);
> +
> + if (intel_edp_psr_match_conditions(intel_dp) &&
> + !intel_edp_is_psr_enabled(dev))
> + intel_edp_psr_do_enable(intel_dp);
> +}
> +
> void intel_edp_psr_disable(struct intel_dp *intel_dp)
> {
> struct drm_device *dev = intel_dp_to_dev(intel_dp);
> @@ -1602,6 +1611,26 @@ void intel_edp_psr_disable(struct intel_dp *intel_dp)
> DRM_ERROR("Timed out waiting for PSR Idle State\n");
> }
>
> +void intel_edp_psr_update(struct drm_device *dev)
> +{
> + struct intel_encoder *encoder;
> + struct intel_dp *intel_dp = NULL;
> +
> + list_for_each_entry(encoder, &dev->mode_config.encoder_list,
> base.head)
> + if (encoder->type == INTEL_OUTPUT_EDP) {
> + intel_dp = enc_to_intel_dp(&encoder->base);
> +
> + if (!is_edp_psr(intel_dp))
> + return;
> +
> + if (!intel_edp_psr_match_conditions(intel_dp))
> + intel_edp_psr_disable(intel_dp);
> + else
> + if (!intel_edp_is_psr_enabled(dev))
> + intel_edp_psr_do_enable(intel_dp);
> + }
> +}
> +
> static void intel_disable_dp(struct intel_encoder *encoder)
> {
> struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
> diff --git a/drivers/gpu/drm/i915/intel_drv.h
> b/drivers/gpu/drm/i915/intel_drv.h
> index ff36a40..40e955d 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -837,5 +837,6 @@ extern bool intel_set_pch_fifo_underrun_reporting(struct
> drm_device *dev,
>
> extern void intel_edp_psr_enable(struct intel_dp *intel_dp);
> extern void intel_edp_psr_disable(struct intel_dp *intel_dp);
> +extern void intel_edp_psr_update(struct drm_device *dev);
>
> #endif /* __INTEL_DRV_H__ */
> --
> 1.7.11.7
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Paulo Zanoni
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