Re: [PATCH 2/3] drm/i915: Throw out WIP CHV power well definitions

[Daniel Vetter <daniel@ffwll.ch>]

On Tue, May 26, 2015 at 08:22:39PM +0300, ville.syrjala@linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> 
> Expecting CHV power wells to be just an extended versions of the VLV
> power wells, a bunch of commented out power wells were added in
> anticipation when Punit folks would implement it all. Turns out they
> never did, and instead CHV has fewer power wells than VLV. Rip out all
> the #if 0'ed junk that's not needed.
> 
> v2: Rename the "pipe-a" well to "display" to match VLV
>     Clarify the pipe A power well relationship to pipes B and C (Deepak)
> 
> Reviewed-by: Deepak S <deepak.s@linux.intel.com>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

Merged patches 1&2 from this series, thanks.

Btw did I not pull them in because of conflicts (since the other part of
the original series aren't ready) or because I missed them?

Thanks, Daniel

> ---
>  drivers/gpu/drm/i915/i915_reg.h         |  4 --
>  drivers/gpu/drm/i915/intel_runtime_pm.c | 98 ++-------------------------------
>  2 files changed, 4 insertions(+), 98 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index fb49989..f5edb35 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -595,10 +595,6 @@ enum punit_power_well {
>  	PUNIT_POWER_WELL_DPIO_RX0		= 10,
>  	PUNIT_POWER_WELL_DPIO_RX1		= 11,
>  	PUNIT_POWER_WELL_DPIO_CMN_D		= 12,
> -	/* FIXME: guesswork below */
> -	PUNIT_POWER_WELL_DPIO_TX_D_LANES_01	= 13,
> -	PUNIT_POWER_WELL_DPIO_TX_D_LANES_23	= 14,
> -	PUNIT_POWER_WELL_DPIO_RX2		= 15,
>  
>  	PUNIT_POWER_WELL_NUM,
>  };
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index 720b0c6..1a45385 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -1233,18 +1233,6 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
>  	BIT(POWER_DOMAIN_AUX_C) |		\
>  	BIT(POWER_DOMAIN_INIT))
>  
> -#define CHV_PIPE_A_POWER_DOMAINS (	\
> -	BIT(POWER_DOMAIN_PIPE_A) |	\
> -	BIT(POWER_DOMAIN_INIT))
> -
> -#define CHV_PIPE_B_POWER_DOMAINS (	\
> -	BIT(POWER_DOMAIN_PIPE_B) |	\
> -	BIT(POWER_DOMAIN_INIT))
> -
> -#define CHV_PIPE_C_POWER_DOMAINS (	\
> -	BIT(POWER_DOMAIN_PIPE_C) |	\
> -	BIT(POWER_DOMAIN_INIT))
> -
>  #define CHV_DPIO_CMN_BC_POWER_DOMAINS (		\
>  	BIT(POWER_DOMAIN_PORT_DDI_B_2_LANES) |	\
>  	BIT(POWER_DOMAIN_PORT_DDI_B_4_LANES) |	\
> @@ -1260,17 +1248,6 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
>  	BIT(POWER_DOMAIN_AUX_D) |		\
>  	BIT(POWER_DOMAIN_INIT))
>  
> -#define CHV_DPIO_TX_D_LANES_01_POWER_DOMAINS (	\
> -	BIT(POWER_DOMAIN_PORT_DDI_D_2_LANES) |	\
> -	BIT(POWER_DOMAIN_PORT_DDI_D_4_LANES) |	\
> -	BIT(POWER_DOMAIN_AUX_D) |		\
> -	BIT(POWER_DOMAIN_INIT))
> -
> -#define CHV_DPIO_TX_D_LANES_23_POWER_DOMAINS (	\
> -	BIT(POWER_DOMAIN_PORT_DDI_D_4_LANES) |	\
> -	BIT(POWER_DOMAIN_AUX_D) |		\
> -	BIT(POWER_DOMAIN_INIT))
> -
>  static const struct i915_power_well_ops i9xx_always_on_power_well_ops = {
>  	.sync_hw = i9xx_always_on_power_well_noop,
>  	.enable = i9xx_always_on_power_well_noop,
> @@ -1428,40 +1405,17 @@ static struct i915_power_well chv_power_wells[] = {
>  		.domains = VLV_ALWAYS_ON_POWER_DOMAINS,
>  		.ops = &i9xx_always_on_power_well_ops,
>  	},
> -#if 0
>  	{
>  		.name = "display",
> -		.domains = VLV_DISPLAY_POWER_DOMAINS,
> -		.data = PUNIT_POWER_WELL_DISP2D,
> -		.ops = &vlv_display_power_well_ops,
> -	},
> -#endif
> -	{
> -		.name = "pipe-a",
>  		/*
> -		 * FIXME: pipe A power well seems to be the new disp2d well.
> -		 * At least all registers seem to be housed there. Figure
> -		 * out if this a a temporary situation in pre-production
> -		 * hardware or a permanent state of affairs.
> +		 * Pipe A power well is the new disp2d well. Pipe B and C
> +		 * power wells don't actually exist. Pipe A power well is
> +		 * required for any pipe to work.
>  		 */
> -		.domains = CHV_PIPE_A_POWER_DOMAINS | VLV_DISPLAY_POWER_DOMAINS,
> +		.domains = VLV_DISPLAY_POWER_DOMAINS,
>  		.data = PIPE_A,
>  		.ops = &chv_pipe_power_well_ops,
>  	},
> -#if 0
> -	{
> -		.name = "pipe-b",
> -		.domains = CHV_PIPE_B_POWER_DOMAINS,
> -		.data = PIPE_B,
> -		.ops = &chv_pipe_power_well_ops,
> -	},
> -	{
> -		.name = "pipe-c",
> -		.domains = CHV_PIPE_C_POWER_DOMAINS,
> -		.data = PIPE_C,
> -		.ops = &chv_pipe_power_well_ops,
> -	},
> -#endif
>  	{
>  		.name = "dpio-common-bc",
>  		.domains = CHV_DPIO_CMN_BC_POWER_DOMAINS,
> @@ -1474,50 +1428,6 @@ static struct i915_power_well chv_power_wells[] = {
>  		.data = PUNIT_POWER_WELL_DPIO_CMN_D,
>  		.ops = &chv_dpio_cmn_power_well_ops,
>  	},
> -#if 0
> -	{
> -		.name = "dpio-tx-b-01",
> -		.domains = VLV_DPIO_TX_B_LANES_01_POWER_DOMAINS |
> -			   VLV_DPIO_TX_B_LANES_23_POWER_DOMAINS,
> -		.ops = &vlv_dpio_power_well_ops,
> -		.data = PUNIT_POWER_WELL_DPIO_TX_B_LANES_01,
> -	},
> -	{
> -		.name = "dpio-tx-b-23",
> -		.domains = VLV_DPIO_TX_B_LANES_01_POWER_DOMAINS |
> -			   VLV_DPIO_TX_B_LANES_23_POWER_DOMAINS,
> -		.ops = &vlv_dpio_power_well_ops,
> -		.data = PUNIT_POWER_WELL_DPIO_TX_B_LANES_23,
> -	},
> -	{
> -		.name = "dpio-tx-c-01",
> -		.domains = VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
> -			   VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
> -		.ops = &vlv_dpio_power_well_ops,
> -		.data = PUNIT_POWER_WELL_DPIO_TX_C_LANES_01,
> -	},
> -	{
> -		.name = "dpio-tx-c-23",
> -		.domains = VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
> -			   VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
> -		.ops = &vlv_dpio_power_well_ops,
> -		.data = PUNIT_POWER_WELL_DPIO_TX_C_LANES_23,
> -	},
> -	{
> -		.name = "dpio-tx-d-01",
> -		.domains = CHV_DPIO_TX_D_LANES_01_POWER_DOMAINS |
> -			   CHV_DPIO_TX_D_LANES_23_POWER_DOMAINS,
> -		.ops = &vlv_dpio_power_well_ops,
> -		.data = PUNIT_POWER_WELL_DPIO_TX_D_LANES_01,
> -	},
> -	{
> -		.name = "dpio-tx-d-23",
> -		.domains = CHV_DPIO_TX_D_LANES_01_POWER_DOMAINS |
> -			   CHV_DPIO_TX_D_LANES_23_POWER_DOMAINS,
> -		.ops = &vlv_dpio_power_well_ops,
> -		.data = PUNIT_POWER_WELL_DPIO_TX_D_LANES_23,
> -	},
> -#endif
>  };
>  
>  static struct i915_power_well *lookup_power_well(struct drm_i915_private *dev_priv,
> -- 
> 2.3.6
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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