[Intel-gfx] [PATCH] drm/i915: use for_each_port_masked in bxt phy init for clarity

[Ander Conselvan De Oliveira]

On Fri, 2016-04-01 at 10:44 +0300, Jani Nikula wrote:
> Make it easier to see which ports are configured for each phy. No
> functional changes.
> 
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>

Reviewed-by: Ander Conselvan de Oliveira <conselvan2 at gmail.com>

> ---
>  drivers/gpu/drm/i915/intel_ddi.c | 10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c
> b/drivers/gpu/drm/i915/intel_ddi.c
> index 1e083853c70d..7049086b1b27 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -1726,7 +1726,7 @@ static void broxton_phy_init(struct drm_i915_private
> *dev_priv,
>  			     enum dpio_phy phy)
>  {
>  	enum port port;
> -	uint32_t val;
> +	u32 ports, val;
>  
>  	val = I915_READ(BXT_P_CR_GT_DISP_PWRON);
>  	val |= GT_DISPLAY_POWER_ON(phy);
> @@ -1736,8 +1736,12 @@ static void broxton_phy_init(struct drm_i915_private
> *dev_priv,
>  	if (wait_for(I915_READ(BXT_PORT_CL1CM_DW0(phy)) & PHY_POWER_GOOD,
> 10))
>  		DRM_ERROR("timeout during PHY%d power on\n", phy);
>  
> -	for (port =  (phy == DPIO_PHY0 ? PORT_B : PORT_A);
> -	     port <= (phy == DPIO_PHY0 ? PORT_C : PORT_A); port++) {
> +	if (phy == DPIO_PHY0)
> +		ports = BIT(PORT_B) | BIT(PORT_C);
> +	else
> +		ports = BIT(PORT_A);
> +
> +	for_each_port_masked(port, ports) {
>  		int lane;
>  
>  		for (lane = 0; lane < 4; lane++) {