For linux-yocto-4.12

Thanks,
Liwei.

On 03/05/2018 04:53 PM, Liwei Song wrote:
> From: Rodrigo Vivi <[email protected]>
> 
> commit eb371933cf4d3495d0899880b2e0e252ce9db517 upstream.
> 
> Coffee Lake CPU on Kaby Lake PCH is possible.
> It does exist, and it does work.
> 
> The only missed case was this warning here noticed
> by Wendy who could get one system with this configuration
> and reported the issue for us:
> 
> Hardware Configuration
> Board ID KBL S DDR4 UDIMM EV CRB
> Processor    IntelĀ® Processor code named Coffee Lake S, (6+2), 6 cores 12 
> threads, GT2, A0 (Internal) (QNJ4)
> 
> [ 3.220585] WARNING: CPU: 10 PID: 206 at drivers/gpu/drm/i915/i915_drv.c:340 
> i915_driver_load+0x1210/0x1660 [i915]
> [ 3.221312] Modules linked in: hid_generic usbhid i915 i2c_algo_bit 
> drm_kms_helper e1000e syscopyarea sysfillrect sysimgblt nvme fb_sys_fops ptp 
> ahci i2c_hid drm pps_core nvme_core libahci wmi hid video
> [ 3.222050] CPU: 10 PID: 206 Comm: systemd-udevd Not tainted 
> 4.13.0-rc5-intel-next+ #1
> [ 3.222706] Hardware name: Intel Corporation Kabylake Client platform/KBL S 
> DDR4 UDIMM EV CRB, BIOS KBLSE2R1.R00.X089.P00.1705051000 05/05/2017
> 
> Cc: Wendy Wang <[email protected]>
> Cc: Dhinakaran Pandiyan <[email protected]>
> Signed-off-by: Rodrigo Vivi <[email protected]>
> Reviewed-by: Dhinakaran Pandiyan <[email protected]>
> Link: 
> https://patchwork.freedesktop.org/patch/msgid/[email protected]
> Signed-off-by: Liwei Song <[email protected]>
> ---
>  drivers/gpu/drm/i915/i915_drv.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index 19ffb3439fa9..bb7a4d92db60 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -221,7 +221,8 @@ static void intel_detect_pch(struct drm_i915_private 
> *dev_priv)
>                               dev_priv->pch_type = PCH_KBP;
>                               DRM_DEBUG_KMS("Found KabyPoint PCH\n");
>                               WARN_ON(!IS_SKYLAKE(dev_priv) &&
> -                                     !IS_KABYLAKE(dev_priv));
> +                                     !IS_KABYLAKE(dev_priv) &&
> +                                     !IS_COFFEELAKE(dev_priv));
>                       } else if (id == INTEL_PCH_CNP_DEVICE_ID_TYPE) {
>                               dev_priv->pch_type = PCH_CNP;
>                               DRM_DEBUG_KMS("Found CannonPoint PCH\n");
> 
-- 
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