[Intel-gfx] [PATCH 05/18] drm/i915/adl_s: Add PHYs for Alderlake S

[Matt Roper]

On Wed, Oct 21, 2020 at 06:32:00AM -0700, Aditya Swarup wrote:
> From: Anusha Srivatsa <anusha.srivatsa at intel.com>
> 
> Alderlake-S has 5 combo phys, add reg definitions for
> combo phys and update the port to phy helper for ADL-S.
> 
> Cc: Lucas De Marchi <lucas.demarchi at intel.com>
> Cc: Jani Nikula <jani.nikula at intel.com>
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Cc: Imre Deak <imre.deak at intel.com>
> Cc: Matt Roper <matthew.d.roper at intel.com>
> Signed-off-by: Anusha Srivatsa <anusha.srivatsa at intel.com>
> Signed-off-by: Aditya Swarup <aditya.swarup at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 8 ++++++--
>  drivers/gpu/drm/i915/i915_reg.h              | 5 ++++-
>  2 files changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 60bacdbe7f92..70ca5d2e5b0a 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -7333,6 +7333,8 @@ bool intel_phy_is_combo(struct drm_i915_private *dev_priv, enum phy phy)
>  {
>  	if (phy == PHY_NONE)
>  		return false;
> +	else if (IS_ALDERLAKE_S(dev_priv))
> +		return phy <= PHY_E;
>  	else if (IS_ROCKETLAKE(dev_priv))
>  		return phy <= PHY_D;
>  	else if (IS_JSL_EHL(dev_priv))
> @@ -7345,7 +7347,7 @@ bool intel_phy_is_combo(struct drm_i915_private *dev_priv, enum phy phy)
>  
>  bool intel_phy_is_tc(struct drm_i915_private *dev_priv, enum phy phy)
>  {
> -	if (IS_ROCKETLAKE(dev_priv))
> +	if (IS_ROCKETLAKE(dev_priv) || IS_ALDERLAKE_S(dev_priv))

Minor nitpick:  we're trying to be more consistent about placing the new
platforms first in conditions like this.

Aside from that,

Reviewed-by: Matt Roper <matthew.d.roper at intel.com>


>  		return false;
>  	else if (INTEL_GEN(dev_priv) >= 12)
>  		return phy >= PHY_D && phy <= PHY_I;
> @@ -7357,7 +7359,9 @@ bool intel_phy_is_tc(struct drm_i915_private *dev_priv, enum phy phy)
>  
>  enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port)
>  {
> -	if (IS_ROCKETLAKE(i915) && port >= PORT_D)
> +	if (IS_ALDERLAKE_S(i915) && port >= PORT_D)
> +		return (enum phy)port - 2;
> +	else if (IS_ROCKETLAKE(i915) && port >= PORT_D)
>  		return (enum phy)port - 1;
>  	else if (IS_JSL_EHL(i915) && port == PORT_D)
>  		return PHY_A;
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index f6b844ca7a9f..85c5e4fb3e7c 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -1870,10 +1870,13 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
>  #define _ICL_COMBOPHY_B			0x6C000
>  #define _EHL_COMBOPHY_C			0x160000
>  #define _RKL_COMBOPHY_D			0x161000
> +#define _ADL_COMBOPHY_E			0x16B000
> +
>  #define _ICL_COMBOPHY(phy)		_PICK(phy, _ICL_COMBOPHY_A, \
>  					      _ICL_COMBOPHY_B, \
>  					      _EHL_COMBOPHY_C, \
> -					      _RKL_COMBOPHY_D)
> +					      _RKL_COMBOPHY_D, \
> +					      _ADL_COMBOPHY_E)
>  
>  /* CNL/ICL Port CL_DW registers */
>  #define _ICL_PORT_CL_DW(dw, phy)	(_ICL_COMBOPHY(phy) + \
> -- 
> 2.27.0
> 

-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795