drm/i915/icl: Add TBT checks for PLL calculations

Add missing TBT check in the Pll calculation.

v2: do not use a auxiliary function to check if status is
TBT or not. (Paulo)

v3: Code style changes. (Paulo)

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1532648115-29795-1-git-send-email-anusha.srivatsa@intel.com

diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c
index 7e5e6eb..20c9068 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c
@@ -2866,6 +2866,8 @@ 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);
        struct intel_shared_dpll *pll;
        struct intel_dpll_hw_state pll_state = {};
        enum port port = encoder->port;
@@ -2885,7 +2887,7 @@ 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,