drm/i915/icl: Add register defs for voltage swing sequences for MG PHY DDI

On Icelake platform, MG PHY is used when operating in DP alternate
mode or the legacy HDMI or DP modes. DDI Ports C, D, E, F are MG PHY
DDI ports on ICL.

This patch adds the necessary voltage swing programming related
register definitions and macros for MG PHY DDI ports.

v4 (from Paulo):
* Use _PORT instead of _PICK
* Change some mask names to our current coding standards
* Stay under 80 columns
v3:
* Rebase on new revision of patches
v2:
* Remove whitespaces in the #defines (Paulo)

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180323172419.24911-4-paulo.r.zanoni@intel.com

drivers/gpu/drm/i915/i915_reg.h

@@ -1809,6 +1809,122 @@ enum i915_power_well_id {
 #define   N_SCALAR(x)			((x) << 24)
 #define   N_SCALAR_MASK			(0x7F << 24)
 
+#define _ICL_MG_PHY_PORT_LN(port, ln, ln0p1, ln0p2, ln1p1) \
+	_MMIO(_PORT((port) - PORT_C, ln0p1, ln0p2) + (ln) * ((ln1p1) - (ln0p1)))
+
+#define _ICL_MG_TX_LINK_PARAMS_TX1LN0_PORT1		0x16812C
+#define _ICL_MG_TX_LINK_PARAMS_TX1LN1_PORT1		0x16852C
+#define _ICL_MG_TX_LINK_PARAMS_TX1LN0_PORT2		0x16912C
+#define _ICL_MG_TX_LINK_PARAMS_TX1LN1_PORT2		0x16952C
+#define _ICL_MG_TX_LINK_PARAMS_TX1LN0_PORT3		0x16A12C
+#define _ICL_MG_TX_LINK_PARAMS_TX1LN1_PORT3		0x16A52C
+#define _ICL_MG_TX_LINK_PARAMS_TX1LN0_PORT4		0x16B12C
+#define _ICL_MG_TX_LINK_PARAMS_TX1LN1_PORT4		0x16B52C
+#define ICL_PORT_MG_TX1_LINK_PARAMS(port, ln) \
+	_ICL_MG_PHY_PORT_LN(port, ln, _ICL_MG_TX_LINK_PARAMS_TX1LN0_PORT1, \
+				      _ICL_MG_TX_LINK_PARAMS_TX1LN0_PORT2, \
+				      _ICL_MG_TX_LINK_PARAMS_TX1LN1_PORT1)
+
+#define _ICL_MG_TX_LINK_PARAMS_TX2LN0_PORT1		0x1680AC
+#define _ICL_MG_TX_LINK_PARAMS_TX2LN1_PORT1		0x1684AC
+#define _ICL_MG_TX_LINK_PARAMS_TX2LN0_PORT2		0x1690AC
+#define _ICL_MG_TX_LINK_PARAMS_TX2LN1_PORT2		0x1694AC
+#define _ICL_MG_TX_LINK_PARAMS_TX2LN0_PORT3		0x16A0AC
+#define _ICL_MG_TX_LINK_PARAMS_TX2LN1_PORT3		0x16A4AC
+#define _ICL_MG_TX_LINK_PARAMS_TX2LN0_PORT4		0x16B0AC
+#define _ICL_MG_TX_LINK_PARAMS_TX2LN1_PORT4		0x16B4AC
+#define ICL_PORT_MG_TX2_LINK_PARAMS(port, ln) \
+	_ICL_MG_PHY_PORT_LN(port, ln, _ICL_MG_TX_LINK_PARAMS_TX2LN0_PORT1, \
+				      _ICL_MG_TX_LINK_PARAMS_TX2LN0_PORT2, \
+				      _ICL_MG_TX_LINK_PARAMS_TX2LN1_PORT1)
+#define CRI_USE_FS32			(1 << 5)
+
+#define _ICL_MG_TX_PISO_READLOAD_TX1LN0_PORT1		0x16814C
+#define _ICL_MG_TX_PISO_READLOAD_TX1LN1_PORT1		0x16854C
+#define _ICL_MG_TX_PISO_READLOAD_TX1LN0_PORT2		0x16914C
+#define _ICL_MG_TX_PISO_READLOAD_TX1LN1_PORT2		0x16954C
+#define _ICL_MG_TX_PISO_READLOAD_TX1LN0_PORT3		0x16A14C
+#define _ICL_MG_TX_PISO_READLOAD_TX1LN1_PORT3		0x16A54C
+#define _ICL_MG_TX_PISO_READLOAD_TX1LN0_PORT4		0x16B14C
+#define _ICL_MG_TX_PISO_READLOAD_TX1LN1_PORT4		0x16B54C
+#define ICL_PORT_MG_TX1_PISO_READLOAD(port, ln) \
+	_ICL_MG_PHY_PORT_LN(port, ln, _ICL_MG_TX_PISO_READLOAD_TX1LN0_PORT1, \
+				      _ICL_MG_TX_PISO_READLOAD_TX1LN0_PORT2, \
+				      _ICL_MG_TX_PISO_READLOAD_TX1LN1_PORT1)
+
+#define _ICL_MG_TX_PISO_READLOAD_TX2LN0_PORT1		0x1680CC
+#define _ICL_MG_TX_PISO_READLOAD_TX2LN1_PORT1		0x1684CC
+#define _ICL_MG_TX_PISO_READLOAD_TX2LN0_PORT2		0x1690CC
+#define _ICL_MG_TX_PISO_READLOAD_TX2LN1_PORT2		0x1694CC
+#define _ICL_MG_TX_PISO_READLOAD_TX2LN0_PORT3		0x16A0CC
+#define _ICL_MG_TX_PISO_READLOAD_TX2LN1_PORT3		0x16A4CC
+#define _ICL_MG_TX_PISO_READLOAD_TX2LN0_PORT4		0x16B0CC
+#define _ICL_MG_TX_PISO_READLOAD_TX2LN1_PORT4		0x16B4CC
+#define ICL_PORT_MG_TX2_PISO_READLOAD(port, ln) \
+	_ICL_MG_PHY_PORT_LN(port, ln, _ICL_MG_TX_PISO_READLOAD_TX2LN0_PORT1, \
+				      _ICL_MG_TX_PISO_READLOAD_TX2LN0_PORT2, \
+				      _ICL_MG_TX_PISO_READLOAD_TX2LN1_PORT1)
+#define CRI_CALCINIT					(1 << 1)
+
+#define _ICL_MG_TX_SWINGCTRL_TX1LN0_PORT1		0x168148
+#define _ICL_MG_TX_SWINGCTRL_TX1LN1_PORT1		0x168548
+#define _ICL_MG_TX_SWINGCTRL_TX1LN0_PORT2		0x169148
+#define _ICL_MG_TX_SWINGCTRL_TX1LN1_PORT2		0x169548
+#define _ICL_MG_TX_SWINGCTRL_TX1LN0_PORT3		0x16A148
+#define _ICL_MG_TX_SWINGCTRL_TX1LN1_PORT3		0x16A548
+#define _ICL_MG_TX_SWINGCTRL_TX1LN0_PORT4		0x16B148
+#define _ICL_MG_TX_SWINGCTRL_TX1LN1_PORT4		0x16B548
+#define ICL_PORT_MG_TX1_SWINGCTRL(port, ln) \
+	_ICL_MG_PHY_PORT_LN(port, ln, _ICL_MG_TX_SWINGCTRL_TX1LN0_PORT1, \
+				      _ICL_MG_TX_SWINGCTRL_TX1LN0_PORT2, \
+				      _ICL_MG_TX_SWINGCTRL_TX1LN1_PORT1)
+
+#define _ICL_MG_TX_SWINGCTRL_TX2LN0_PORT1		0x1680C8
+#define _ICL_MG_TX_SWINGCTRL_TX2LN1_PORT1		0x1684C8
+#define _ICL_MG_TX_SWINGCTRL_TX2LN0_PORT2		0x1690C8
+#define _ICL_MG_TX_SWINGCTRL_TX2LN1_PORT2		0x1694C8
+#define _ICL_MG_TX_SWINGCTRL_TX2LN0_PORT3		0x16A0C8
+#define _ICL_MG_TX_SWINGCTRL_TX2LN1_PORT3		0x16A4C8
+#define _ICL_MG_TX_SWINGCTRL_TX2LN0_PORT4		0x16B0C8
+#define _ICL_MG_TX_SWINGCTRL_TX2LN1_PORT4		0x16B4C8
+#define ICL_PORT_MG_TX2_SWINGCTRL(port, ln) \
+	_ICL_MG_PHY_PORT_LN(port, ln, _ICL_MG_TX_SWINGCTRL_TX2LN0_PORT1, \
+				      _ICL_MG_TX_SWINGCTRL_TX2LN0_PORT2, \
+				      _ICL_MG_TX_SWINGCTRL_TX2LN1_PORT1)
+#define CRI_TXDEEMPH_OVERRIDE_17_12(x)			((x) << 0)
+#define CRI_TXDEEMPH_OVERRIDE_17_12_MASK		(0x3F << 0)
+
+#define _ICL_MG_TX_DRVCTRL_TX1LN0_PORT1			0x168144
+#define _ICL_MG_TX_DRVCTRL_TX1LN1_PORT1			0x168544
+#define _ICL_MG_TX_DRVCTRL_TX1LN0_PORT2			0x169144
+#define _ICL_MG_TX_DRVCTRL_TX1LN1_PORT2			0x169544
+#define _ICL_MG_TX_DRVCTRL_TX1LN0_PORT3			0x16A144
+#define _ICL_MG_TX_DRVCTRL_TX1LN1_PORT3			0x16A544
+#define _ICL_MG_TX_DRVCTRL_TX1LN0_PORT4			0x16B144
+#define _ICL_MG_TX_DRVCTRL_TX1LN1_PORT4			0x16B544
+#define ICL_PORT_MG_TX1_DRVCTRL(port, ln) \
+	_ICL_MG_PHY_PORT_LN(port, ln, _ICL_MG_TX_DRVCTRL_TX1LN0_PORT1, \
+				      _ICL_MG_TX_DRVCTRL_TX1LN0_PORT2, \
+				      _ICL_MG_TX_DRVCTRL_TX1LN1_PORT1)
+
+#define _ICL_MG_TX_DRVCTRL_TX2LN0_PORT1			0x1680C4
+#define _ICL_MG_TX_DRVCTRL_TX2LN1_PORT1			0x1684C4
+#define _ICL_MG_TX_DRVCTRL_TX2LN0_PORT2			0x1690C4
+#define _ICL_MG_TX_DRVCTRL_TX2LN1_PORT2			0x1694C4
+#define _ICL_MG_TX_DRVCTRL_TX2LN0_PORT3			0x16A0C4
+#define _ICL_MG_TX_DRVCTRL_TX2LN1_PORT3			0x16A4C4
+#define _ICL_MG_TX_DRVCTRL_TX2LN0_PORT4			0x16B0C4
+#define _ICL_MG_TX_DRVCTRL_TX2LN1_PORT4			0x16B4C4
+#define ICL_PORT_MG_TX2_DRVCTRL(port, ln) \
+	_ICL_MG_PHY_PORT_LN(port, ln, _ICL_MG_TX_DRVCTRL_TX2LN0_PORT1, \
+				      _ICL_MG_TX_DRVCTRL_TX2LN0_PORT2, \
+				      _ICL_MG_TX_DRVCTRL_TX2LN1_PORT1)
+#define CRI_TXDEEMPH_OVERRIDE_11_6(x)			((x) << 24)
+#define CRI_TXDEEMPH_OVERRIDE_11_6_MASK			(0x3F << 24)
+#define CRI_TXDEEMPH_OVERRIDE_EN			(1 << 22)
+#define CRI_TXDEEMPH_OVERRIDE_5_0(x)			((x) << 16)
+#define CRI_TXDEEMPH_OVERRIDE_5_0_MASK			(0x3F << 16)
+
 /* The spec defines this only for BXT PHY0, but lets assume that this
  * would exist for PHY1 too if it had a second channel.
  */