From 2b7edeb008527b1dd649d3a581792825b57df08a Mon Sep 17 00:00:00 2001
From: Anusha Srivatsa <anusha.srivatsa@intel.com>
Date: Thu, 26 Jul 2018 16:35:14 -0700
Subject: drm/i915/icl: Add TBT checks for PLL calculations
Git-commit: 2b7edeb008527b1dd649d3a581792825b57df08a
Patch-mainline: v4.20-rc1
References: fate#326289
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
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/intel_dpll_mgr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c
index 7e5e6eb5dfe2..20c90688a48a 100644
--- 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,
--
2.20.1