Re: [PATCH v2 3/3] drm/xe: Use the encoder suspend helper also used by the i915 driver

[Jani Nikula <jani.nikula@linux.intel.com>]

On Tue, 18 Jun 2024, Imre Deak <imre.deak@intel.com> wrote:
> Use the suspend encoders helper which is also used by the i915 driver.
> This fixes an issue in the xe driver where the encoder
> suspend_complete() hook is not called and was an overlook when this hook
> was added in commit b61fad5f7e5d ("drm/i915/tc: Call TypeC port
> flush_work/cleanup without modeset locks held") for i915, but not added
> to the xe driver (which was still in a separate source tree at the above
> point).
>
> v2: Fix checkpatch warn in commit log. (Rodrigo)
>
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>

Reviewed-by: Jani Nikula <jani.nikula@intel.com>

> ---
>  drivers/gpu/drm/xe/display/xe_display.c | 18 ++----------------
>  1 file changed, 2 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
> index 78cccbe289475..8b83dcff72e17 100644
> --- a/drivers/gpu/drm/xe/display/xe_display.c
> +++ b/drivers/gpu/drm/xe/display/xe_display.c
> @@ -23,6 +23,7 @@
>  #include "intel_display_types.h"
>  #include "intel_dmc.h"
>  #include "intel_dp.h"
> +#include "intel_encoder.h"
>  #include "intel_fbdev.h"
>  #include "intel_hdcp.h"
>  #include "intel_hotplug.h"
> @@ -270,21 +271,6 @@ void xe_display_irq_postinstall(struct xe_device *xe, struct xe_gt *gt)
>  		gen11_de_irq_postinstall(xe);
>  }
>  
> -static void intel_suspend_encoders(struct xe_device *xe)
> -{
> -	struct drm_device *dev = &xe->drm;
> -	struct intel_encoder *encoder;
> -
> -	if (has_display(xe))
> -		return;
> -
> -	drm_modeset_lock_all(dev);
> -	for_each_intel_encoder(dev, encoder)
> -		if (encoder->suspend)
> -			encoder->suspend(encoder);
> -	drm_modeset_unlock_all(dev);
> -}
> -
>  static bool suspend_to_idle(void)
>  {
>  #if IS_ENABLED(CONFIG_ACPI_SLEEP)
> @@ -315,7 +301,7 @@ void xe_display_pm_suspend(struct xe_device *xe, bool runtime)
>  
>  	intel_hpd_cancel_work(xe);
>  
> -	intel_suspend_encoders(xe);
> +	intel_encoder_suspend_all(&xe->display);
>  
>  	intel_opregion_suspend(xe, s2idle ? PCI_D1 : PCI_D3cold);

-- 
Jani Nikula, Intel