> -----Original Message-----
> From: Intel-gfx <intel-gfx-boun...@lists.freedesktop.org> On Behalf Of Ville
> Syrjala
> Sent: Thursday, June 30, 2022 8:36 PM
> To: intel-gfx@lists.freedesktop.org
> Subject: [Intel-gfx] [PATCH 3/3] drm/i915: Nuke PCH_JSP
>
> From: Ville Syrjälä <ville.syrj...@linux.intel.com>
>
> JSP is based on ICP and we don't really need to differentiate between the
> two. So let's just delcare JSP to be ICP.
>
> The only slight change here is for Wa_14011294188 which we used to apply
> for JSP but now we'll only apply to MCC. This should be fine since the issue
> being dealt with was introduced in TGP and inherited into MCC. JSP being
> derived from ICP should not need this workaround.
>
> Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_display_power.c | 2 +-
> drivers/gpu/drm/i915/intel_pch.c | 3 ++-
> drivers/gpu/drm/i915/intel_pch.h | 4 +---
> 3 files changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c
> b/drivers/gpu/drm/i915/display/intel_display_power.c
> index a9cb27f1c964..589af257edeb 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
> @@ -1608,7 +1608,7 @@ static void icl_display_core_init(struct
> drm_i915_private *dev_priv,
> gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
>
> /* Wa_14011294188:ehl,jsl,tgl,rkl,adl-s */
> - if (INTEL_PCH_TYPE(dev_priv) >= PCH_JSP &&
> + if (INTEL_PCH_TYPE(dev_priv) >= PCH_TGP &&
> INTEL_PCH_TYPE(dev_priv) < PCH_DG1)
> intel_de_rmw(dev_priv, SOUTH_DSPCLK_GATE_D, 0,
> PCH_DPMGUNIT_CLOCK_GATE_DISABLE); diff --git
> a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c
> index b45c504c6f03..0fec25be146a 100644
> --- a/drivers/gpu/drm/i915/intel_pch.c
> +++ b/drivers/gpu/drm/i915/intel_pch.c
> @@ -128,7 +128,8 @@ intel_pch_type(const struct drm_i915_private
> *dev_priv, unsigned short id)
> case INTEL_PCH_JSP_DEVICE_ID_TYPE:
> drm_dbg_kms(&dev_priv->drm, "Found Jasper Lake PCH\n");
> drm_WARN_ON(&dev_priv->drm, !IS_JSL_EHL(dev_priv));
> - return PCH_JSP;
> + /* JSP is ICP compatible */
> + return PCH_ICP;
> case INTEL_PCH_ADP_DEVICE_ID_TYPE:
> case INTEL_PCH_ADP2_DEVICE_ID_TYPE:
> case INTEL_PCH_ADP3_DEVICE_ID_TYPE:
> diff --git a/drivers/gpu/drm/i915/intel_pch.h
> b/drivers/gpu/drm/i915/intel_pch.h
> index 07f6f5517968..7c8ce9781d1a 100644
> --- a/drivers/gpu/drm/i915/intel_pch.h
> +++ b/drivers/gpu/drm/i915/intel_pch.h
> @@ -22,8 +22,7 @@ enum intel_pch {
> PCH_LPT, /* Lynxpoint/Wildcatpoint PCH */
> PCH_SPT, /* Sunrisepoint/Kaby Lake PCH */
> PCH_CNP, /* Cannon/Comet Lake PCH */
> - PCH_ICP, /* Ice Lake PCH */
> - PCH_JSP, /* Jasper Lake PCH */
> + PCH_ICP, /* Ice Lake/Jasper Lake PCH */
Only in i915_irq icp is used and in the rest of the i915 code icl is used
leading to confusion.
I would rather suggest to use ICL since most of the driver references it as icl
and also change icp in i915_irq to icl.
This is just my opinion, other can comment over here.
Thanks and Regards,
Arun R Murthy
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