[Intel-gfx] [RFC 12/60] drm/i915/dg1: Add DPLL macros for DG1

[Matthew Auld <matthew.auld@intel.com>]

From: Aditya Swarup <aditya.swarup@intel.com>

DG1 has 4 DPLLs where DPLL0 and DPLL1 drive DDIA/B and
DPLL2 and DPLL3 drive DDIC/DDID.

Introduce DG1_DPLL_CFCRx() helper macros to configure
DPLL registers.

Bspec: 50288, 50299

Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Aditya Swarup <aditya.swarup@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dpll_mgr.h | 17 +++++++++++++++++
 drivers/gpu/drm/i915/i915_reg.h               | 17 ++++++++++++++++-
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
index 5d9a2bc371e7..205542fb8dc7 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
@@ -154,6 +154,23 @@ enum intel_dpll_id {
 	 * @DPLL_ID_TGL_MGPLL6: TGL TC PLL port 6 (TC6)
 	 */
 	DPLL_ID_TGL_MGPLL6 = 8,
+
+	/**
+	 * @DPLL_ID_DG1_DPLL0: DG1 combo PHY DPLL0
+	 */
+	DPLL_ID_DG1_DPLL0 = 0,
+	/**
+	 * @DPLL_ID_DG1_DPLL1: DG1 combo PHY DPLL1
+	 */
+	DPLL_ID_DG1_DPLL1 = 1,
+	/**
+	 * @DPLL_ID_DG1_DPLL2: DG1 combo PHY DPLL2
+	 */
+	DPLL_ID_DG1_DPLL2 = 2,
+	/**
+	 * @DPLL_ID_DG1_DPLL3: DG1 combo PHY DPLL3
+	 */
+	DPLL_ID_DG1_DPLL3 = 3,
 };
 
 #define I915_NUM_PLLS 9
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 20f48f24f2dd..f362c65b1de7 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -242,7 +242,8 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
 #define _MMIO_PIPE3(pipe, a, b, c)	_MMIO(_PICK(pipe, a, b, c))
 #define _MMIO_PORT3(pipe, a, b, c)	_MMIO(_PICK(pipe, a, b, c))
 #define _MMIO_PHY3(phy, a, b, c)	_MMIO(_PHY3(phy, a, b, c))
-#define _MMIO_PLL3(pll, a, b, c)	_MMIO(_PICK(pll, a, b, c))
+#define _MMIO_PLL3(pll, ...)		_MMIO(_PICK(pll, __VA_ARGS__))
+
 
 /*
  * Device info offset array based helpers for groups of registers with unevenly
@@ -10520,6 +10521,20 @@ enum skl_power_gate {
 						   _TGL_DPLL1_CFGCR1, \
 						   _TGL_TBTPLL_CFGCR1)
 
+#define _DG1_DPLL2_CFGCR0		0x16C284
+#define _DG1_DPLL3_CFGCR0		0x16C28C
+#define DG1_DPLL_CFGCR0(pll)		_MMIO_PLL3(pll, _TGL_DPLL0_CFGCR0, \
+						   _TGL_DPLL1_CFGCR0, \
+						   _DG1_DPLL2_CFGCR0, \
+						   _DG1_DPLL3_CFGCR0)
+
+#define _DG1_DPLL2_CFGCR1               0x16C288
+#define _DG1_DPLL3_CFGCR1               0x16C290
+#define DG1_DPLL_CFGCR1(pll)            _MMIO_PLL3(pll, _TGL_DPLL0_CFGCR1, \
+						   _TGL_DPLL1_CFGCR1, \
+						   _DG1_DPLL2_CFGCR1, \
+						   _DG1_DPLL3_CFGCR1)
+
 #define _DKL_PHY1_BASE			0x168000
 #define _DKL_PHY2_BASE			0x169000
 #define _DKL_PHY3_BASE			0x16A000
-- 
2.26.2

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