APPLIED[U]: [PATCH 1/2][SRU][U/L/K/J] drm/i915: Use 18 fast wake AUX sync len

[Andrea Righi]

On Tue, Jun 06, 2023 at 04:10:51PM +0800, Koba Ko wrote:
> From: Jouni Högander <jouni.hogander at intel.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/2023004 
> 
> HW default for wake sync pulses is 18. 10 precharge and 8 preamble. There
> is no reason to change this especially as it is causing problems with
> certain eDP panels.
> 
> v3: Change "Fixes:" commit
> v2: Remove "fast wake" repeat from subject
> 
> Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
> Fixes: e1c71f8f9180 ("drm/i915: Fix fast wake AUX sync len")
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8475
> Reviewed-by: Luca Coelho <luciano.coelho at intel.com>
> Link: https://patchwork.freedesktop.org/patch/msgid/20230530101649.2549949-1-jouni.hogander@intel.com
> (cherry picked from commit b29a20f7c4995a059ed764ce42389857426397c7
> drmtip)
> Signed-off-by: Koba Ko <koba.ko at canonical.com>
> ---

Applied to mantic/linux-unstable.

Thanks,
-Andrea

>  drivers/gpu/drm/i915/display/intel_dp_aux.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c
> index faec2b8be5f46..dd399fcbb025d 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
> @@ -129,7 +129,7 @@ static int intel_dp_aux_sync_len(void)
>  
>  static int intel_dp_aux_fw_sync_len(void)
>  {
> -	int precharge = 16; /* 10-16 */
> +	int precharge = 10; /* 10-16 */
>  	int preamble = 8;
>  
>  	return precharge + preamble;
> -- 
> 2.25.1
> 
> 
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