On 2021-01-08 at 19:44:14 +0200, Jani Nikula wrote:
> Add a locked version of intel_pps_vdd_off_sync_unlocked() that does
> everything the callers expect it to. No functional changes.
>
> v2: Fix typo (Anshuman)
>
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
LGTM.
Reviewed-by: Anshuman Gupta <anshuman.gupta@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_dp.c | 31 +++---------------------
> drivers/gpu/drm/i915/display/intel_pps.c | 18 +++++++++++++-
> drivers/gpu/drm/i915/display/intel_pps.h | 2 +-
> 3 files changed, 21 insertions(+), 30 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 1384f1d3a9cf..bff5e735a92e 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -6249,17 +6249,8 @@ void intel_dp_encoder_flush_work(struct drm_encoder *encoder)
> struct intel_dp *intel_dp = &dig_port->dp;
>
> intel_dp_mst_encoder_cleanup(dig_port);
> - if (intel_dp_is_edp(intel_dp)) {
> - intel_wakeref_t wakeref;
>
> - cancel_delayed_work_sync(&intel_dp->panel_vdd_work);
> - /*
> - * vdd might still be enabled do to the delayed vdd off.
> - * Make sure vdd is actually turned off here.
> - */
> - with_intel_pps_lock(intel_dp, wakeref)
> - intel_pps_vdd_off_sync_unlocked(intel_dp);
> - }
> + intel_pps_vdd_off_sync(intel_dp);
>
> intel_dp_aux_fini(intel_dp);
> }
> @@ -6275,18 +6266,8 @@ static void intel_dp_encoder_destroy(struct drm_encoder *encoder)
> void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder)
> {
> struct intel_dp *intel_dp = enc_to_intel_dp(intel_encoder);
> - intel_wakeref_t wakeref;
> -
> - if (!intel_dp_is_edp(intel_dp))
> - return;
>
> - /*
> - * vdd might still be enabled do to the delayed vdd off.
> - * Make sure vdd is actually turned off here.
> - */
> - cancel_delayed_work_sync(&intel_dp->panel_vdd_work);
> - with_intel_pps_lock(intel_dp, wakeref)
> - intel_pps_vdd_off_sync_unlocked(intel_dp);
> + intel_pps_vdd_off_sync(intel_dp);
> }
>
> void intel_dp_encoder_shutdown(struct intel_encoder *intel_encoder)
> @@ -7140,13 +7121,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
> return true;
>
> out_vdd_off:
> - cancel_delayed_work_sync(&intel_dp->panel_vdd_work);
> - /*
> - * vdd might still be enabled do to the delayed vdd off.
> - * Make sure vdd is actually turned off here.
> - */
> - with_intel_pps_lock(intel_dp, wakeref)
> - intel_pps_vdd_off_sync_unlocked(intel_dp);
> + intel_pps_vdd_off_sync(intel_dp);
>
> return false;
> }
> diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c
> index fd3677948800..b6c07694ae9d 100644
> --- a/drivers/gpu/drm/i915/display/intel_pps.c
> +++ b/drivers/gpu/drm/i915/display/intel_pps.c
> @@ -637,7 +637,7 @@ void intel_pps_vdd_on(struct intel_dp *intel_dp)
> dp_to_dig_port(intel_dp)->base.base.name);
> }
>
> -void intel_pps_vdd_off_sync_unlocked(struct intel_dp *intel_dp)
> +static void intel_pps_vdd_off_sync_unlocked(struct intel_dp *intel_dp)
> {
> struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
> struct intel_digital_port *dig_port =
> @@ -678,6 +678,22 @@ void intel_pps_vdd_off_sync_unlocked(struct intel_dp *intel_dp)
> fetch_and_zero(&intel_dp->vdd_wakeref));
> }
>
> +void intel_pps_vdd_off_sync(struct intel_dp *intel_dp)
> +{
> + intel_wakeref_t wakeref;
> +
> + if (!intel_dp_is_edp(intel_dp))
> + return;
> +
> + cancel_delayed_work_sync(&intel_dp->panel_vdd_work);
> + /*
> + * vdd might still be enabled due to the delayed vdd off.
> + * Make sure vdd is actually turned off here.
> + */
> + with_intel_pps_lock(intel_dp, wakeref)
> + intel_pps_vdd_off_sync_unlocked(intel_dp);
> +}
> +
> void edp_panel_vdd_work(struct work_struct *__work)
> {
> struct intel_dp *intel_dp =
> diff --git a/drivers/gpu/drm/i915/display/intel_pps.h b/drivers/gpu/drm/i915/display/intel_pps.h
> index e7f0473be9a7..3cab183658c6 100644
> --- a/drivers/gpu/drm/i915/display/intel_pps.h
> +++ b/drivers/gpu/drm/i915/display/intel_pps.h
> @@ -29,7 +29,6 @@ void intel_pps_backlight_power(struct intel_connector *connector, bool enable);
>
> bool intel_pps_vdd_on_unlocked(struct intel_dp *intel_dp);
> void intel_pps_vdd_off_unlocked(struct intel_dp *intel_dp, bool sync);
> -void intel_pps_vdd_off_sync_unlocked(struct intel_dp *intel_dp);
> void intel_pps_on_unlocked(struct intel_dp *intel_dp);
> void intel_pps_off_unlocked(struct intel_dp *intel_dp);
> void edp_panel_vdd_work(struct work_struct *__work);
> @@ -38,6 +37,7 @@ void intel_pps_vdd_sanitize(struct intel_dp *intel_dp);
> void intel_pps_vdd_on(struct intel_dp *intel_dp);
> void intel_pps_on(struct intel_dp *intel_dp);
> void intel_pps_off(struct intel_dp *intel_dp);
> +void intel_pps_vdd_off_sync(struct intel_dp *intel_dp);
> bool intel_pps_have_power(struct intel_dp *intel_dp);
>
> void wait_panel_power_cycle(struct intel_dp *intel_dp);
> --
> 2.20.1
>
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