Em Seg, 2018-08-06 às 12:58 +0300, Imre Deak escreveu:
> Now that we removed dependence on the power well IDs to determine the
> control register and request/status flag offsets the only purpose of
> power well IDs is to look up power wells directly bypassing the power
> domains framework. However this direct lookup isn't needed for most
> of
> the exisiting power wells and hopefully won't be needed for any new
> power wells in the future. To make maintenance of the power well ID
> enum
> easier, don't require a unique ID for each power well, only if it's
> necessary. Remove the IDs becoming redundant this way and assign to
> all
> the corresponding power wells a new DISP_PW_ID_NONE ID.
>
> After the previous two patches the IDs don't need to have a fixed
> value,
> so remove the explicit initializers and adjust the enum's code
> comment
> accordingly.
>
> v2:
> - Keep required ID assignments for HSW_DISP_PW_GLOBAL and
> ICL_DISP_PW_2.
> (Paulo)
>
> Cc: Ville Syrjala <ville.syrj...@linux.intel.com>
> Cc: Paulo Zanoni <paulo.r.zan...@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zan...@intel.com>
> Cc: Jani Nikula <jani.nik...@intel.com>
> Signed-off-by: Imre Deak <imre.d...@intel.com>
> ---
> drivers/gpu/drm/i915/i915_reg.h | 118 ++++----------------
> ----------
> drivers/gpu/drm/i915/intel_runtime_pm.c | 123 ++++++++++++++++----
> ------------
> 2 files changed, 76 insertions(+), 165 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h
> b/drivers/gpu/drm/i915/i915_reg.h
> index 4f5eb49934b4..4568adc8369a 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -1029,117 +1029,25 @@ static inline bool
> i915_mmio_reg_valid(i915_reg_t reg)
> /*
> * i915_power_well_id:
> *
> - * Platform specific IDs used to look up power wells and - except
> for custom
> - * power wells - to define request/status register flag bit
> positions. As such
> - * the set of IDs on a given platform must be unique and except for
> custom
> - * power wells their value must stay fixed.
> + * IDs used to look up power wells. Power wells accessed directly
> bypassing
> + * the power domains framework must be assigned a unique ID. The
> rest of power
> + * wells must be assigned DISP_PW_ID_NONE.
> */
> enum i915_power_well_id {
> - /*
> - * I830
> - * - custom power well
> - */
> - I830_DISP_PW_PIPES = 0,
> -
> - /*
> - * VLV/CHV
> - * - PUNIT_REG_PWRGT_CTRL (bit: id*2),
> - * PUNIT_REG_PWRGT_STATUS (bit: id*2) (PUNIT HAS v0.8)
> - */
> - PUNIT_POWER_WELL_RENDER = 0,
> - PUNIT_POWER_WELL_MEDIA = 1,
> - PUNIT_POWER_WELL_DISP2D = 3,
> - PUNIT_POWER_WELL_DPIO_CMN_BC = 5,
> - PUNIT_POWER_WELL_DPIO_TX_B_LANES_01 = 6,
> - PUNIT_POWER_WELL_DPIO_TX_B_LANES_23 = 7,
> - PUNIT_POWER_WELL_DPIO_TX_C_LANES_01 = 8,
> - PUNIT_POWER_WELL_DPIO_TX_C_LANES_23 = 9,
> - PUNIT_POWER_WELL_DPIO_RX0 = 10,
> - PUNIT_POWER_WELL_DPIO_RX1 = 11,
> - PUNIT_POWER_WELL_DPIO_CMN_D = 12,
> - /* - custom power well */
> - CHV_DISP_PW_PIPE_A, /* 13 */
> -
> - /*
> - * HSW/BDW
> - * - _HSW_PWR_WELL_CTL1-4 (status bit: id*2, req bit:
> id*2+1)
> - */
> - HSW_DISP_PW_GLOBAL = 15,
> -
> - /*
> - * GEN9+
> - * - _HSW_PWR_WELL_CTL1-4 (status bit: id*2, req bit:
> id*2+1)
> - */
> - SKL_DISP_PW_MISC_IO = 0,
> - SKL_DISP_PW_DDI_A_E,
> - GLK_DISP_PW_DDI_A = SKL_DISP_PW_DDI_A_E,
> - CNL_DISP_PW_DDI_A = SKL_DISP_PW_DDI_A_E,
> - SKL_DISP_PW_DDI_B,
> - SKL_DISP_PW_DDI_C,
> - SKL_DISP_PW_DDI_D,
> - CNL_DISP_PW_DDI_F = 6,
> -
> - GLK_DISP_PW_AUX_A = 8,
> - GLK_DISP_PW_AUX_B,
> - GLK_DISP_PW_AUX_C,
> - CNL_DISP_PW_AUX_A = GLK_DISP_PW_AUX_A,
> - CNL_DISP_PW_AUX_B = GLK_DISP_PW_AUX_B,
> - CNL_DISP_PW_AUX_C = GLK_DISP_PW_AUX_C,
> - CNL_DISP_PW_AUX_D,
> - CNL_DISP_PW_AUX_F,
> -
> - SKL_DISP_PW_1 = 14,
> + DISP_PW_ID_NONE,
> +
> + PUNIT_POWER_WELL_DISP2D,
> + PUNIT_POWER_WELL_DPIO_CMN_BC,
> + PUNIT_POWER_WELL_DPIO_CMN_D,
> + HSW_DISP_PW_GLOBAL,
> + SKL_DISP_PW_MISC_IO,
> + SKL_DISP_PW_1,
> SKL_DISP_PW_2,
> -
> - /* - custom power wells */
> BXT_DPIO_CMN_A,
> BXT_DPIO_CMN_BC,
> - GLK_DPIO_CMN_C, /* 18 */
> -
> - /*
> - * GEN11+
> - * - _HSW_PWR_WELL_CTL1-4
> - * (status bit: (id&15)*2, req bit:(id&15)*2+1)
> - */
> - ICL_DISP_PW_1 = 0,
> + GLK_DPIO_CMN_C,
> + ICL_DISP_PW_1,
> ICL_DISP_PW_2,
> - ICL_DISP_PW_3,
> - ICL_DISP_PW_4,
> -
> - /*
> - * - _HSW_PWR_WELL_CTL_AUX1/2/4
> - * (status bit: (id&15)*2, req bit:(id&15)*2+1)
> - */
> - ICL_DISP_PW_AUX_A = 16,
> - ICL_DISP_PW_AUX_B,
> - ICL_DISP_PW_AUX_C,
> - ICL_DISP_PW_AUX_D,
> - ICL_DISP_PW_AUX_E,
> - ICL_DISP_PW_AUX_F,
> -
> - ICL_DISP_PW_AUX_TBT1 = 24,
> - ICL_DISP_PW_AUX_TBT2,
> - ICL_DISP_PW_AUX_TBT3,
> - ICL_DISP_PW_AUX_TBT4,
> -
> - /*
> - * - _HSW_PWR_WELL_CTL_DDI1/2/4
> - * (status bit: (id&15)*2, req bit:(id&15)*2+1)
> - */
> - ICL_DISP_PW_DDI_A = 32,
> - ICL_DISP_PW_DDI_B,
> - ICL_DISP_PW_DDI_C,
> - ICL_DISP_PW_DDI_D,
> - ICL_DISP_PW_DDI_E,
> - ICL_DISP_PW_DDI_F, /* 37 */
> -
> - /*
> - * Multiple platforms.
> - * Must start following the highest ID of any platform.
> - * - custom power wells
> - */
> - SKL_DISP_PW_DC_OFF = 38,
> - I915_DISP_PW_ALWAYS_ON,
> };
>
> #define PUNIT_REG_PWRGT_CTRL 0x60
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c
> b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index 626774f86cd2..6aec980cea07 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -2067,7 +2067,7 @@ static const struct i915_power_well_desc
> i9xx_always_on_power_well[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> };
>
> @@ -2084,13 +2084,13 @@ static const struct i915_power_well_desc
> i830_power_wells[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "pipes",
> .domains = I830_PIPES_POWER_DOMAINS,
> .ops = &i830_pipes_power_well_ops,
> - .id = I830_DISP_PW_PIPES,
> + .id = DISP_PW_ID_NONE,
> },
> };
>
> @@ -2128,7 +2128,7 @@ static const struct i915_power_well_desc
> hsw_power_wells[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "display",
> @@ -2149,7 +2149,7 @@ static const struct i915_power_well_desc
> bdw_power_wells[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "display",
> @@ -2192,7 +2192,7 @@ static const struct i915_power_well_desc
> vlv_power_wells[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "display",
> @@ -2210,7 +2210,7 @@ static const struct i915_power_well_desc
> vlv_power_wells[] = {
> VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
> VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
> .ops = &vlv_dpio_power_well_ops,
> - .id = PUNIT_POWER_WELL_DPIO_TX_B_LANES_01,
> + .id = DISP_PW_ID_NONE,
> {
> .vlv.idx =
> PUNIT_PWGT_IDX_DPIO_TX_B_LANES_01,
> },
> @@ -2222,7 +2222,7 @@ static const struct i915_power_well_desc
> vlv_power_wells[] = {
> VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
> VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
> .ops = &vlv_dpio_power_well_ops,
> - .id = PUNIT_POWER_WELL_DPIO_TX_B_LANES_23,
> + .id = DISP_PW_ID_NONE,
> {
> .vlv.idx =
> PUNIT_PWGT_IDX_DPIO_TX_B_LANES_23,
> },
> @@ -2234,7 +2234,7 @@ static const struct i915_power_well_desc
> vlv_power_wells[] = {
> VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
> VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
> .ops = &vlv_dpio_power_well_ops,
> - .id = PUNIT_POWER_WELL_DPIO_TX_C_LANES_01,
> + .id = DISP_PW_ID_NONE,
> {
> .vlv.idx =
> PUNIT_PWGT_IDX_DPIO_TX_C_LANES_01,
> },
> @@ -2246,7 +2246,7 @@ static const struct i915_power_well_desc
> vlv_power_wells[] = {
> VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
> VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
> .ops = &vlv_dpio_power_well_ops,
> - .id = PUNIT_POWER_WELL_DPIO_TX_C_LANES_23,
> + .id = DISP_PW_ID_NONE,
> {
> .vlv.idx =
> PUNIT_PWGT_IDX_DPIO_TX_C_LANES_23,
> },
> @@ -2268,7 +2268,7 @@ static const struct i915_power_well_desc
> chv_power_wells[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "display",
> @@ -2279,7 +2279,7 @@ static const struct i915_power_well_desc
> chv_power_wells[] = {
> */
> .domains = CHV_DISPLAY_POWER_DOMAINS,
> .ops = &chv_pipe_power_well_ops,
> - .id = CHV_DISP_PW_PIPE_A,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "dpio-common-bc",
> @@ -2319,7 +2319,7 @@ static const struct i915_power_well_desc
> skl_power_wells[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "power well 1",
> @@ -2348,7 +2348,7 @@ static const struct i915_power_well_desc
> skl_power_wells[] = {
> .name = "DC off",
> .domains = SKL_DISPLAY_DC_OFF_POWER_DOMAINS,
> .ops = &gen9_dc_off_power_well_ops,
> - .id = SKL_DISP_PW_DC_OFF,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "power well 2",
> @@ -2367,7 +2367,7 @@ static const struct i915_power_well_desc
> skl_power_wells[] = {
> .name = "DDI A/E IO power well",
> .domains = SKL_DISPLAY_DDI_IO_A_E_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = SKL_DISP_PW_DDI_A_E,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = SKL_PW_CTL_IDX_DDI_A_E,
> @@ -2377,7 +2377,7 @@ static const struct i915_power_well_desc
> skl_power_wells[] = {
> .name = "DDI B IO power well",
> .domains = SKL_DISPLAY_DDI_IO_B_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = SKL_DISP_PW_DDI_B,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = SKL_PW_CTL_IDX_DDI_B,
> @@ -2387,7 +2387,7 @@ static const struct i915_power_well_desc
> skl_power_wells[] = {
> .name = "DDI C IO power well",
> .domains = SKL_DISPLAY_DDI_IO_C_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = SKL_DISP_PW_DDI_C,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = SKL_PW_CTL_IDX_DDI_C,
> @@ -2397,7 +2397,7 @@ static const struct i915_power_well_desc
> skl_power_wells[] = {
> .name = "DDI D IO power well",
> .domains = SKL_DISPLAY_DDI_IO_D_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = SKL_DISP_PW_DDI_D,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = SKL_PW_CTL_IDX_DDI_D,
> @@ -2411,7 +2411,7 @@ static const struct i915_power_well_desc
> bxt_power_wells[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "power well 1",
> @@ -2428,7 +2428,7 @@ static const struct i915_power_well_desc
> bxt_power_wells[] = {
> .name = "DC off",
> .domains = BXT_DISPLAY_DC_OFF_POWER_DOMAINS,
> .ops = &gen9_dc_off_power_well_ops,
> - .id = SKL_DISP_PW_DC_OFF,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "power well 2",
> @@ -2469,7 +2469,7 @@ static const struct i915_power_well_desc
> glk_power_wells[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "power well 1",
> @@ -2487,7 +2487,7 @@ static const struct i915_power_well_desc
> glk_power_wells[] = {
> .name = "DC off",
> .domains = GLK_DISPLAY_DC_OFF_POWER_DOMAINS,
> .ops = &gen9_dc_off_power_well_ops,
> - .id = SKL_DISP_PW_DC_OFF,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "power well 2",
> @@ -2533,7 +2533,7 @@ static const struct i915_power_well_desc
> glk_power_wells[] = {
> .name = "AUX A",
> .domains = GLK_DISPLAY_AUX_A_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = GLK_DISP_PW_AUX_A,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = GLK_PW_CTL_IDX_AUX_A,
> @@ -2543,7 +2543,7 @@ static const struct i915_power_well_desc
> glk_power_wells[] = {
> .name = "AUX B",
> .domains = GLK_DISPLAY_AUX_B_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = GLK_DISP_PW_AUX_B,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = GLK_PW_CTL_IDX_AUX_B,
> @@ -2553,7 +2553,7 @@ static const struct i915_power_well_desc
> glk_power_wells[] = {
> .name = "AUX C",
> .domains = GLK_DISPLAY_AUX_C_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = GLK_DISP_PW_AUX_C,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = GLK_PW_CTL_IDX_AUX_C,
> @@ -2563,7 +2563,7 @@ static const struct i915_power_well_desc
> glk_power_wells[] = {
> .name = "DDI A IO power well",
> .domains = GLK_DISPLAY_DDI_IO_A_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = GLK_DISP_PW_DDI_A,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = GLK_PW_CTL_IDX_DDI_A,
> @@ -2573,7 +2573,7 @@ static const struct i915_power_well_desc
> glk_power_wells[] = {
> .name = "DDI B IO power well",
> .domains = GLK_DISPLAY_DDI_IO_B_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = SKL_DISP_PW_DDI_B,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = SKL_PW_CTL_IDX_DDI_B,
> @@ -2583,7 +2583,7 @@ static const struct i915_power_well_desc
> glk_power_wells[] = {
> .name = "DDI C IO power well",
> .domains = GLK_DISPLAY_DDI_IO_C_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = SKL_DISP_PW_DDI_C,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = SKL_PW_CTL_IDX_DDI_C,
> @@ -2597,7 +2597,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "power well 1",
> @@ -2615,7 +2615,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "AUX A",
> .domains = CNL_DISPLAY_AUX_A_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = CNL_DISP_PW_AUX_A,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = GLK_PW_CTL_IDX_AUX_A,
> @@ -2625,7 +2625,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "AUX B",
> .domains = CNL_DISPLAY_AUX_B_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = CNL_DISP_PW_AUX_B,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = GLK_PW_CTL_IDX_AUX_B,
> @@ -2635,7 +2635,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "AUX C",
> .domains = CNL_DISPLAY_AUX_C_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = CNL_DISP_PW_AUX_C,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = GLK_PW_CTL_IDX_AUX_C,
> @@ -2645,7 +2645,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "AUX D",
> .domains = CNL_DISPLAY_AUX_D_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = CNL_DISP_PW_AUX_D,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = CNL_PW_CTL_IDX_AUX_D,
> @@ -2655,7 +2655,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "DC off",
> .domains = CNL_DISPLAY_DC_OFF_POWER_DOMAINS,
> .ops = &gen9_dc_off_power_well_ops,
> - .id = SKL_DISP_PW_DC_OFF,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "power well 2",
> @@ -2674,7 +2674,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "DDI A IO power well",
> .domains = CNL_DISPLAY_DDI_A_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = CNL_DISP_PW_DDI_A,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = GLK_PW_CTL_IDX_DDI_A,
> @@ -2684,7 +2684,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "DDI B IO power well",
> .domains = CNL_DISPLAY_DDI_B_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = SKL_DISP_PW_DDI_B,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = SKL_PW_CTL_IDX_DDI_B,
> @@ -2694,7 +2694,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "DDI C IO power well",
> .domains = CNL_DISPLAY_DDI_C_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = SKL_DISP_PW_DDI_C,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = SKL_PW_CTL_IDX_DDI_C,
> @@ -2704,7 +2704,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "DDI D IO power well",
> .domains = CNL_DISPLAY_DDI_D_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = SKL_DISP_PW_DDI_D,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = SKL_PW_CTL_IDX_DDI_D,
> @@ -2714,7 +2714,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "DDI F IO power well",
> .domains = CNL_DISPLAY_DDI_F_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = CNL_DISP_PW_DDI_F,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = CNL_PW_CTL_IDX_DDI_F,
> @@ -2724,7 +2724,7 @@ static const struct i915_power_well_desc
> cnl_power_wells[] = {
> .name = "AUX F",
> .domains = CNL_DISPLAY_AUX_F_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = CNL_DISP_PW_AUX_F,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = CNL_PW_CTL_IDX_AUX_F,
> @@ -2757,7 +2757,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .always_on = 1,
> .domains = POWER_DOMAIN_MASK,
> .ops = &i9xx_always_on_power_well_ops,
> - .id = I915_DISP_PW_ALWAYS_ON,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "power well 1",
> @@ -2786,13 +2786,13 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "DC off",
> .domains = ICL_DISPLAY_DC_OFF_POWER_DOMAINS,
> .ops = &gen9_dc_off_power_well_ops,
> - .id = SKL_DISP_PW_DC_OFF,
> + .id = DISP_PW_ID_NONE,
> },
> {
> .name = "power well 3",
> .domains = ICL_PW_3_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_3,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_PW_3,
> @@ -2805,7 +2805,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "DDI A IO",
> .domains = ICL_DDI_IO_A_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_DDI_A,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_ddi_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_DDI_A,
> @@ -2815,7 +2815,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "DDI B IO",
> .domains = ICL_DDI_IO_B_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_DDI_B,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_ddi_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_DDI_B,
> @@ -2825,7 +2825,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "DDI C IO",
> .domains = ICL_DDI_IO_C_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_DDI_C,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_ddi_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_DDI_C,
> @@ -2835,7 +2835,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "DDI D IO",
> .domains = ICL_DDI_IO_D_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_DDI_D,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_ddi_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_DDI_D,
> @@ -2845,7 +2845,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "DDI E IO",
> .domains = ICL_DDI_IO_E_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_DDI_E,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_ddi_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_DDI_E,
> @@ -2855,7 +2855,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "DDI F IO",
> .domains = ICL_DDI_IO_F_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_DDI_F,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_ddi_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_DDI_F,
> @@ -2865,7 +2865,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "AUX A",
> .domains = ICL_AUX_A_IO_POWER_DOMAINS,
> .ops = &icl_combo_phy_aux_power_well_ops,
> - .id = ICL_DISP_PW_AUX_A,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_aux_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_AUX_A,
> @@ -2875,7 +2875,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "AUX B",
> .domains = ICL_AUX_B_IO_POWER_DOMAINS,
> .ops = &icl_combo_phy_aux_power_well_ops,
> - .id = ICL_DISP_PW_AUX_B,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_aux_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_AUX_B,
> @@ -2885,7 +2885,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "AUX C",
> .domains = ICL_AUX_C_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_AUX_C,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_aux_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_AUX_C,
> @@ -2895,7 +2895,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "AUX D",
> .domains = ICL_AUX_D_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_AUX_D,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_aux_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_AUX_D,
> @@ -2905,7 +2905,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "AUX E",
> .domains = ICL_AUX_E_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_AUX_E,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_aux_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_AUX_E,
> @@ -2915,7 +2915,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "AUX F",
> .domains = ICL_AUX_F_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_AUX_F,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_aux_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_AUX_F,
> @@ -2925,7 +2925,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "AUX TBT1",
> .domains = ICL_AUX_TBT1_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_AUX_TBT1,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_aux_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_AUX_TBT1,
> @@ -2935,7 +2935,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "AUX TBT2",
> .domains = ICL_AUX_TBT2_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_AUX_TBT2,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_aux_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_AUX_TBT2,
> @@ -2945,7 +2945,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "AUX TBT3",
> .domains = ICL_AUX_TBT3_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_AUX_TBT3,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_aux_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_AUX_TBT3,
> @@ -2955,7 +2955,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "AUX TBT4",
> .domains = ICL_AUX_TBT4_IO_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_AUX_TBT4,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &icl_aux_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_AUX_TBT4,
> @@ -2965,7 +2965,7 @@ static const struct i915_power_well_desc
> icl_power_wells[] = {
> .name = "power well 4",
> .domains = ICL_PW_4_POWER_DOMAINS,
> .ops = &hsw_power_well_ops,
> - .id = ICL_DISP_PW_4,
> + .id = DISP_PW_ID_NONE,
> {
> .hsw.regs = &hsw_power_well_regs,
> .hsw.idx = ICL_PW_CTL_IDX_PW_4,
> @@ -3054,6 +3054,9 @@ __set_power_wells(struct i915_power_domains
> *power_domains,
>
> power_domains->power_wells[i].desc =
> &power_well_descs[i];
>
> + if (id == DISP_PW_ID_NONE)
> + continue;
> +
> WARN_ON(id >= sizeof(power_well_ids) * 8);
> WARN_ON(power_well_ids & BIT_ULL(id));
> power_well_ids |= BIT_ULL(id);
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