drm/i915/icl: Introduce new macros to get combophy registers
combo-phy register instances are at same offset from base for each combo-phy port, i.e. Port A base offset: 0x16200 Port B base offset: 0x6C000 All the other addresses for both ports can be derived by calculating offset to these base addresses. PORT_CL_DW_OFFSET 0x0 PORT_CL_DW<x> 0 + x * 4 PORT_COMP_OFFSET 0x100 PORT_COMP_DW<x> 0x100 + x * 4 PORT_PCS_AUX_OFFSET 0x300 PORT_PCS_GRP_OFFSET 0x600 PORT_PCS_LN<y>_OFFSET 0x800 + y * 0x100 PORT_TX_AUX_OFFSET 0x380 PORT_TX_GRP_OFFSET 0x680 PORT_TX_LN<y>_OFFSET 0x880 + y * 0x100 And inside each PORT_TX_[AUX|GRP|LN] we add `dw * 4`. Based on original patch by Mahesh Kumar <mahesh1.kumar@intel.com>. v2: make port, dw and ln arguments follow the order in register's name Signed-off-by: NLucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: NMahesh Kumar <mahesh1.kumar@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181016023517.8576-1-lucas.demarchi@intel.com
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