[Intel-gfx] [PATCH 1/2] drm/i915/icl: Add TBT checks for PLL calculations

[Paulo Zanoni]

Em Qua, 2018-07-25 às 14:28 -0700, Anusha Srivatsa escreveu:
> Add missing TBT check in the Pll calculation.
> 
> v2: do not use a auxiliary function to check if status is
> TBT or not. (Paulo)
> 
> Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
> Cc: Lucas De Marchi <lucas.demarchi at intel.com>
> Signed-off-by: Anusha Srivatsa <anusha.srivatsa at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_dpll_mgr.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c
> b/drivers/gpu/drm/i915/intel_dpll_mgr.c
> index 7e5e6eb..ba49078 100644
> --- a/drivers/gpu/drm/i915/intel_dpll_mgr.c
> +++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c
> @@ -428,6 +428,7 @@ ibx_get_dpll(struct intel_crtc *crtc, struct
> intel_crtc_state *crtc_state,
>  	     struct intel_encoder *encoder)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> +
>  	struct intel_shared_dpll *pll;
>  	enum intel_dpll_id i;
>  

This chunk does nothing and the space introduced is even against our
coding style. Please review your own patches before submitting them to
the mailing list: this is the kind of error that's very easy to catch
by looking at the patch file, saving everybody's time.



> @@ -2866,6 +2867,9 @@ static struct intel_shared_dpll *
>  icl_get_dpll(struct intel_crtc *crtc, struct intel_crtc_state
> *crtc_state,
>  	     struct intel_encoder *encoder)
>  {
> +	struct intel_digital_port *intel_dig_port =
> +			enc_to_dig_port(&encoder->base);
> +

This chunk also adds a blank line that goes against our coding style.



>  	struct intel_shared_dpll *pll;
>  	struct intel_dpll_hw_state pll_state = {};
>  	enum port port = encoder->port;
> @@ -2885,7 +2889,7 @@ icl_get_dpll(struct intel_crtc *crtc, struct
> intel_crtc_state *crtc_state,
>  	case PORT_D:
>  	case PORT_E:
>  	case PORT_F:
> -		if (0 /* TODO: TBT PLLs */) {
> +		if (intel_dig_port->tc_type == TC_PORT_TBT) {
>  			min = DPLL_ID_ICL_TBTPLL;
>  			max = min;
>  			ret = icl_calc_dpll_state(crtc_state,
> encoder, clock,