[Intel-gfx] [PATCH 07/21] drm/i915/adl_s: Add PHYs for Alderlake S

[Matt Roper]

On Tue, Nov 17, 2020 at 10:50:15AM -0800, 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>
> Reviewed-by: Matt Roper <matthew.d.roper at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 9 +++++++--
>  drivers/gpu/drm/i915/i915_reg.h              | 5 ++++-
>  2 files changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index e8874cd22abf..848bcd83b15f 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -7343,6 +7343,8 @@ 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_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
>  		return phy <= PHY_D;
>  	else if (IS_JSL_EHL(dev_priv))
> @@ -7355,7 +7357,8 @@ 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_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
> +	if (IS_ALDERLAKE_S(dev_priv) || IS_DG1(dev_priv) ||
> +	    IS_ROCKETLAKE(dev_priv))
>  		return false;
>  	else if (INTEL_GEN(dev_priv) >= 12)
>  		return phy >= PHY_D && phy <= PHY_I;

Since ICL/TGL are the exception rather than the rule for actually having
Type-C ports, it might make more sense to just flip this around and have

        if (TGL)
                ...
        else if (ICL)
                ...
        else
                return false;


Matt

> @@ -7367,7 +7370,9 @@ 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_DG1(i915) || IS_ROCKETLAKE(i915)) && port >= PORT_TC1)
> +	if (IS_ALDERLAKE_S(i915) && port >= PORT_TC1)
> +		return PHY_B + port - PORT_TC1;
> +	else if ((IS_DG1(i915) || IS_ROCKETLAKE(i915)) && port >= PORT_TC1)
>  		return PHY_C + port - PORT_TC1;
>  	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 7ea70b7ffcc6..402ea8cd602b 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -1872,10 +1872,13 @@ 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