[PATCH 1/1][SRU][H/I/OEM-5.13] drm/i915/display: Disable PSR2 if TGL Display stepping is B1 from A0
Stefan Bader
stefan.bader at canonical.com
Tue Jul 20 13:10:56 UTC 2021
On 19.07.21 16:29, Chris Chiu wrote:
>
>
> On Mon, Jul 19, 2021 at 9:43 PM <chris.chiu at canonical.com
> <mailto:chris.chiu at canonical.com>> wrote:
>
> From: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com
> <mailto:gwan-gyeong.mun at intel.com>>
>
> BugLink: https://bugs.launchpad.net/bugs/1926579
> <https://bugs.launchpad.net/bugs/1926579>
>
> TGL PSR2 hardware tracking shows momentary flicker and screen shift if
> TGL Display stepping is B1 from A0.
> It has been fixed from TGL Display stepping C0.
>
> HSDES: 18015970021
> HSDES: 2209313811
> BSpec: 55378
>
> v2: Add checking of PSR2 manual tracking (Jose)
>
> Cc: José Roberto de Souza <jose.souza at intel.com <mailto:jose.souza at intel.com>>
> Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com
> <mailto:gwan-gyeong.mun at intel.com>>
> Reviewed-by: José Roberto de Souza <jose.souza at intel.com
> <mailto:jose.souza at intel.com>>
> Signed-off-by: José Roberto de Souza <jose.souza at intel.com
> <mailto:jose.souza at intel.com>>
> Link:
> https://patchwork.freedesktop.org/patch/msgid/20210422160544.2427123-1-gwan-gyeong.mun@intel.com
> <https://patchwork.freedesktop.org/patch/msgid/20210422160544.2427123-1-gwan-gyeong.mun@intel.com>
> (cherry picked from commit 8804325861be242a420d68c0175127a5947ac35a)
> Signed-off-by: Chris Chiu <chris.chiu at canonical.com
> <mailto:chris.chiu at canonical.com>>
> ---
> drivers/gpu/drm/i915/display/intel_psr.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c
> b/drivers/gpu/drm/i915/display/intel_psr.c
> index 8ada4f829cab..056dcc2ec4ce 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -804,6 +804,13 @@ static bool intel_psr2_config_valid(struct intel_dp
> *intel_dp,
> }
> }
>
> + /* Wa_2209313811 */
> + if (!crtc_state->enable_psr2_sel_fetch &&
> + IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B1)) {
> + drm_dbg_kms(&dev_priv->drm, "PSR2 HW tracking is not
> supported this Display stepping\n");
> + return false;
> + }
> +
> if (!crtc_state->enable_psr2_sel_fetch &&
> (crtc_hdisplay > psr_max_h || crtc_vdisplay > psr_max_v)) {
> drm_dbg_kms(&dev_priv->drm,
> --
> 2.25.1
>
>
> --
> kernel-team mailing list
> kernel-team at lists.ubuntu.com <mailto:kernel-team at lists.ubuntu.com>
> https://lists.ubuntu.com/mailman/listinfo/kernel-team
> <https://lists.ubuntu.com/mailman/listinfo/kernel-team>
>
>
>
> Fail to compile on Hirsute and Impish due to undefined macros. Need v2 to fix
>
was that meant as a NACK?
-------------- next part --------------
A non-text attachment was scrubbed...
Name: OpenPGP_signature
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/kernel-team/attachments/20210720/836800e7/attachment.sig>
More information about the kernel-team
mailing list