diff options
| author | Imre Deak <imre.deak@intel.com> | 2018-06-19 19:41:15 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2018-06-21 19:02:03 +0300 |
| commit | bd99ce085f165a07fe8b33ad04157b91c91b8668 (patch) | |
| tree | ecaba334aaf8bfd82afc483d731e8c907fc14f12 /drivers/gpu/drm/i915/i915_reg.h | |
| parent | 9fc59bae0f4a8ec3676a9245abed7721b4d3d8c9 (diff) | |
drm/i915/icl: Do read-modify-write as needed during MG PLL programming
Some MG PLL registers have fields that need to be preserved at their HW
default or BIOS programmed values. So make sure we preserve them.
v2:
- Add comment to icl_mg_pll_write() explaining the need for register
masks. (Vandita)
- Fix patchwork checkpatch warning.
v3:
- Rebase on drm-tip.
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: James Ausmus <james.ausmus@intel.com> (v1)
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180619164115.7835-1-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 4bfd7a9bd75f..65b222287ee4 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -9047,6 +9047,7 @@ enum skl_power_gate { #define _MG_REFCLKIN_CTL_PORT3 0x16A92C #define _MG_REFCLKIN_CTL_PORT4 0x16B92C #define MG_REFCLKIN_CTL_OD_2_MUX(x) ((x) << 8) +#define MG_REFCLKIN_CTL_OD_2_MUX_MASK (0x7 << 8) #define MG_REFCLKIN_CTL(port) _MMIO_PORT((port) - PORT_C, \ _MG_REFCLKIN_CTL_PORT1, \ _MG_REFCLKIN_CTL_PORT2) @@ -9056,7 +9057,9 @@ enum skl_power_gate { #define _MG_CLKTOP2_CORECLKCTL1_PORT3 0x16A8D8 #define _MG_CLKTOP2_CORECLKCTL1_PORT4 0x16B8D8 #define MG_CLKTOP2_CORECLKCTL1_B_DIVRATIO(x) ((x) << 16) +#define MG_CLKTOP2_CORECLKCTL1_B_DIVRATIO_MASK (0xff << 16) #define MG_CLKTOP2_CORECLKCTL1_A_DIVRATIO(x) ((x) << 8) +#define MG_CLKTOP2_CORECLKCTL1_A_DIVRATIO_MASK (0xff << 8) #define MG_CLKTOP2_CORECLKCTL1(port) _MMIO_PORT((port) - PORT_C, \ _MG_CLKTOP2_CORECLKCTL1_PORT1, \ _MG_CLKTOP2_CORECLKCTL1_PORT2) @@ -9066,9 +9069,13 @@ enum skl_power_gate { #define _MG_CLKTOP2_HSCLKCTL_PORT3 0x16A8D4 #define _MG_CLKTOP2_HSCLKCTL_PORT4 0x16B8D4 #define MG_CLKTOP2_HSCLKCTL_CORE_INPUTSEL(x) ((x) << 16) +#define MG_CLKTOP2_HSCLKCTL_CORE_INPUTSEL_MASK (0x1 << 16) #define MG_CLKTOP2_HSCLKCTL_TLINEDRV_CLKSEL(x) ((x) << 14) +#define MG_CLKTOP2_HSCLKCTL_TLINEDRV_CLKSEL_MASK (0x3 << 14) #define MG_CLKTOP2_HSCLKCTL_HSDIV_RATIO(x) ((x) << 12) +#define MG_CLKTOP2_HSCLKCTL_HSDIV_RATIO_MASK (0x3 << 12) #define MG_CLKTOP2_HSCLKCTL_DSDIV_RATIO(x) ((x) << 8) +#define MG_CLKTOP2_HSCLKCTL_DSDIV_RATIO_MASK (0xf << 8) #define MG_CLKTOP2_HSCLKCTL(port) _MMIO_PORT((port) - PORT_C, \ _MG_CLKTOP2_HSCLKCTL_PORT1, \ _MG_CLKTOP2_HSCLKCTL_PORT2) @@ -9142,12 +9149,18 @@ enum skl_power_gate { #define _MG_PLL_BIAS_PORT3 0x16AA14 #define _MG_PLL_BIAS_PORT4 0x16BA14 #define MG_PLL_BIAS_BIAS_GB_SEL(x) ((x) << 30) +#define MG_PLL_BIAS_BIAS_GB_SEL_MASK (0x3 << 30) #define MG_PLL_BIAS_INIT_DCOAMP(x) ((x) << 24) +#define MG_PLL_BIAS_INIT_DCOAMP_MASK (0x3f << 24) #define MG_PLL_BIAS_BIAS_BONUS(x) ((x) << 16) +#define MG_PLL_BIAS_BIAS_BONUS_MASK (0xff << 16) #define MG_PLL_BIAS_BIASCAL_EN (1 << 15) #define MG_PLL_BIAS_CTRIM(x) ((x) << 8) +#define MG_PLL_BIAS_CTRIM_MASK (0x1f << 8) #define MG_PLL_BIAS_VREF_RDAC(x) ((x) << 5) +#define MG_PLL_BIAS_VREF_RDAC_MASK (0x7 << 5) #define MG_PLL_BIAS_IREFTRIM(x) ((x) << 0) +#define MG_PLL_BIAS_IREFTRIM_MASK (0x1f << 0) #define MG_PLL_BIAS(port) _MMIO_PORT((port) - PORT_C, _MG_PLL_BIAS_PORT1, \ _MG_PLL_BIAS_PORT2) |