Commit b078c16b authored by Radhakrishna Sripada's avatar Radhakrishna Sripada
Browse files

drm/i915/mtl: Add PCH support 



Add support for Meteorpoint(MTP) PCH used with Meteorlake.

Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: default avatarAnusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: default avatarClint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: default avatarRadhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-7-radhakrishna.sripada@intel.com
parent 08e9505f

drivers/gpu/drm/i915/intel_pch.c

+8 −1
Original line number Diff line number Diff line
@@ -138,6 +138,11 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id) 
		drm_WARN_ON(&dev_priv->drm, !IS_ALDERLAKE_S(dev_priv) &&

			    !IS_ALDERLAKE_P(dev_priv));

		return PCH_ADP;

	case INTEL_PCH_MTP_DEVICE_ID_TYPE:

	case INTEL_PCH_MTP2_DEVICE_ID_TYPE:

		drm_dbg_kms(&dev_priv->drm, "Found Meteor Lake PCH\n");

		drm_WARN_ON(&dev_priv->drm, !IS_METEORLAKE(dev_priv));

		return PCH_MTP;

	default:

		return PCH_NONE;

	}
@@ -166,7 +171,9 @@ intel_virt_detect_pch(const struct drm_i915_private *dev_priv, 
	 * make an educated guess as to which PCH is really there.

	 */



	if (IS_ALDERLAKE_S(dev_priv) || IS_ALDERLAKE_P(dev_priv))

	if (IS_METEORLAKE(dev_priv))

		id = INTEL_PCH_MTP_DEVICE_ID_TYPE;

	else if (IS_ALDERLAKE_S(dev_priv) || IS_ALDERLAKE_P(dev_priv))

		id = INTEL_PCH_ADP_DEVICE_ID_TYPE;

	else if (IS_TIGERLAKE(dev_priv) || IS_ROCKETLAKE(dev_priv))

		id = INTEL_PCH_TGP_DEVICE_ID_TYPE;

drivers/gpu/drm/i915/intel_pch.h

+4 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ enum intel_pch { 
	PCH_ICP,	/* Ice Lake/Jasper Lake PCH */

	PCH_TGP,	/* Tiger Lake/Mule Creek Canyon PCH */

	PCH_ADP,	/* Alder Lake PCH */

	PCH_MTP,	/* Meteor Lake PCH */



	/* Fake PCHs, functionality handled on the same PCI dev */

	PCH_DG1 = 1024,
@@ -57,12 +58,15 @@ enum intel_pch { 
#define INTEL_PCH_ADP2_DEVICE_ID_TYPE		0x5180

#define INTEL_PCH_ADP3_DEVICE_ID_TYPE		0x7A00

#define INTEL_PCH_ADP4_DEVICE_ID_TYPE		0x5480

#define INTEL_PCH_MTP_DEVICE_ID_TYPE		0x7E00

#define INTEL_PCH_MTP2_DEVICE_ID_TYPE		0xAE00

#define INTEL_PCH_P2X_DEVICE_ID_TYPE		0x7100

#define INTEL_PCH_P3X_DEVICE_ID_TYPE		0x7000

#define INTEL_PCH_QEMU_DEVICE_ID_TYPE		0x2900 /* qemu q35 has 2918 */



#define INTEL_PCH_TYPE(dev_priv)		((dev_priv)->pch_type)

#define INTEL_PCH_ID(dev_priv)			((dev_priv)->pch_id)

#define HAS_PCH_MTP(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_MTP)

#define HAS_PCH_DG2(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_DG2)

#define HAS_PCH_ADP(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_ADP)

#define HAS_PCH_DG1(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_DG1)