[Intel-gfx] [PATCH 08/16] drm/i915/skl: Unexport skl_pw1_misc_io_init

[Patrik Jakobsson]

On Fri, Apr 01, 2016 at 04:02:39PM +0300, Imre Deak wrote:
> On Broxton we need to enable/disable power well 1 during the init/unit display
> sequence similarly to Skylake/Kabylake. The code for this will be added in a
> follow-up patch, but to prepare for that unexport skl_pw1_misc_io_init(). It's
> a simple function called only from a single place and having it inlined in the
> Skylake display core init/unit functions will make it easier to compare it
> with its Broxton counterpart.
> 
> No functional change.
> 
> Signed-off-by: Imre Deak <imre.deak at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_drv.h        |  2 --
>  drivers/gpu/drm/i915/intel_runtime_pm.c | 49 ++++++++++++---------------------
>  2 files changed, 18 insertions(+), 33 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 9255b56..8ba2ac3 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1460,8 +1460,6 @@ int intel_power_domains_init(struct drm_i915_private *);
>  void intel_power_domains_fini(struct drm_i915_private *);
>  void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
>  void intel_power_domains_suspend(struct drm_i915_private *dev_priv);
> -void skl_pw1_misc_io_init(struct drm_i915_private *dev_priv);
> -void skl_pw1_misc_io_fini(struct drm_i915_private *dev_priv);
>  void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
>  const char *
>  intel_display_power_domain_str(enum intel_display_power_domain domain);
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index b16315e..58ed8bc 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -1921,34 +1921,6 @@ static struct i915_power_well skl_power_wells[] = {
>  	},
>  };
>  
> -void skl_pw1_misc_io_init(struct drm_i915_private *dev_priv)
> -{
> -	struct i915_power_well *well;
> -
> -	if (!(IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)))
> -		return;
> -
> -	well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
> -	intel_power_well_enable(dev_priv, well);
> -
> -	well = lookup_power_well(dev_priv, SKL_DISP_PW_MISC_IO);
> -	intel_power_well_enable(dev_priv, well);
> -}
> -
> -void skl_pw1_misc_io_fini(struct drm_i915_private *dev_priv)
> -{
> -	struct i915_power_well *well;
> -
> -	if (!(IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)))
> -		return;
> -
> -	well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
> -	intel_power_well_disable(dev_priv, well);
> -
> -	well = lookup_power_well(dev_priv, SKL_DISP_PW_MISC_IO);
> -	intel_power_well_disable(dev_priv, well);
> -}
> -
>  static struct i915_power_well bxt_power_wells[] = {
>  	{
>  		.name = "always-on",
> @@ -2139,9 +2111,10 @@ static void intel_power_domains_sync_hw(struct drm_i915_private *dev_priv)
>  }
>  
>  static void skl_display_core_init(struct drm_i915_private *dev_priv,
> -				  bool resume)
> +				   bool resume)
>  {
>  	struct i915_power_domains *power_domains = &dev_priv->power_domains;
> +	struct i915_power_well *well;
>  	uint32_t val;
>  
>  	gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
> @@ -2152,7 +2125,13 @@ static void skl_display_core_init(struct drm_i915_private *dev_priv,
>  
>  	/* enable PG1 and Misc I/O */
>  	mutex_lock(&power_domains->lock);
> -	skl_pw1_misc_io_init(dev_priv);
> +
> +	well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
> +	intel_power_well_enable(dev_priv, well);
> +
> +	well = lookup_power_well(dev_priv, SKL_DISP_PW_MISC_IO);
> +	intel_power_well_enable(dev_priv, well);
> +
>  	mutex_unlock(&power_domains->lock);
>  
>  	if (!resume)
> @@ -2167,6 +2146,7 @@ static void skl_display_core_init(struct drm_i915_private *dev_priv,
>  static void skl_display_core_uninit(struct drm_i915_private *dev_priv)
>  {
>  	struct i915_power_domains *power_domains = &dev_priv->power_domains;
> +	struct i915_power_well *well;
>  
>  	gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
>  
> @@ -2174,8 +2154,15 @@ static void skl_display_core_uninit(struct drm_i915_private *dev_priv)
>  
>  	/* The spec doesn't call for removing the reset handshake flag */
>  	/* disable PG1 and Misc I/O */
> +
>  	mutex_lock(&power_domains->lock);
> -	skl_pw1_misc_io_fini(dev_priv);
> +
> +	well = lookup_power_well(dev_priv, SKL_DISP_PW_MISC_IO);
> +	intel_power_well_enable(dev_priv, well);

Should be intel_power_well_disable(...)

> +
> +	well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
> +	intel_power_well_enable(dev_priv, well);

Same here.

> +
>  	mutex_unlock(&power_domains->lock);
>  }
>  
> -- 
> 2.5.0
> 
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