APPLIED[Unstable]: [PATCH 00/10][SRU][OEM-5.10][Unstable] Support CML-S CPU + TGP PCH

Seth Forshee seth.forshee at canonical.com
Fri Feb 19 18:13:25 UTC 2021


On Mon, Jan 18, 2021 at 10:25:54PM +0800, AceLan Kao wrote:
> From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
> 
> https://bugs.launchpad.net/bugs/1909457
> 
> [Impact]
> i915 driver gives below warnings that CML-S GPU doesn't work with TGL/RKL
> PCH, and the screen is blank.
> 
> kernel: i915 0000:00:02.0: drm_WARN_ON(!IS_PLATFORM(dev_priv, INTEL_TIGERLAKE) && !IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE))
> 
> [Fix]
> Intel provides us a new patch for this issue
> https://patchwork.freedesktop.org/patch/412664/
> 
> [Test]
> Verified on new Dell platforms.
> 
> [Where problems could occur]
> The first commit reverts the patch that didn't find its way to upstream.
> The second to forth commits are to enable DG1 which applied for solving conflicts.
> The fifth and sixth commit splits code for EHL and JSL.
> The seventh and eighth commits rename enums, no function changes.
> The ninth commit is the newer version of the first reverted commit.
> The tenth commit adds CML CPU support on TGP PCH which fixes this issue.
> According to the above explanation,
> 1. the DG1 in newly enabled by commits 2 to 4, no regression could occur,
> 2. the EHL and JSL commits are pretty simple and straightforward, should be safe to include,
> 3. the first commit is equivalence to the ninth commit
> 4. the tenth commit is pretty simple to add GEN9 into flow control,
> so I think there should be no problems could occur from this patchset.

Applied to unstable/master, thanks.



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