[PATCH 2/5][SRU][OEM-5.14] drm/i915/display: remove explicit CNL handling from intel_dp.c

[Koba Ko]

From: Lucas De Marchi <lucas.demarchi at intel.com>

BugLink: https://bugs.launchpad.net/bugs/1967986

The only real platform with DISPLAY_VER == 10 is GLK. We don't need to
handle CNL explicitly in intel_dp.c.

Remove code and rename functions/macros accordingly to use ICL prefix.

Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210728215946.1573015-10-lucas.demarchi@intel.com
(cherry picked from commit 94a79070d2770a6602e7dafebcde627da5e7b6dd)
Signed-off-by: Koba Ko <koba.ko at canonical.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 35 ++++---------------------
 1 file changed, 5 insertions(+), 30 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 83850af7b58f5..dea064c77825e 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -229,29 +229,6 @@ bool intel_dp_can_bigjoiner(struct intel_dp *intel_dp)
 		 encoder->port != PORT_A);
 }
 
-static int cnl_max_source_rate(struct intel_dp *intel_dp)
-{
-	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
-	struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
-	enum port port = dig_port->base.port;
-
-	u32 voltage = intel_de_read(dev_priv, CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK;
-
-	/* Low voltage SKUs are limited to max of 5.4G */
-	if (voltage == VOLTAGE_INFO_0_85V)
-		return 540000;
-
-	/* For this SKU 8.1G is supported in all ports */
-	if (IS_CNL_WITH_PORT_F(dev_priv))
-		return 810000;
-
-	/* For other SKUs, max rate on ports A and D is 5.4G */
-	if (port == PORT_A || port == PORT_D)
-		return 540000;
-
-	return 810000;
-}
-
 static int icl_max_source_rate(struct intel_dp *intel_dp)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
@@ -277,7 +254,7 @@ static void
 intel_dp_set_source_rates(struct intel_dp *intel_dp)
 {
 	/* The values must be in increasing order */
-	static const int cnl_rates[] = {
+	static const int icl_rates[] = {
 		162000, 216000, 270000, 324000, 432000, 540000, 648000, 810000
 	};
 	static const int bxt_rates[] = {
@@ -302,12 +279,10 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp)
 	drm_WARN_ON(&dev_priv->drm,
 		    intel_dp->source_rates || intel_dp->num_source_rates);
 
-	if (DISPLAY_VER(dev_priv) >= 11 || IS_CANNONLAKE(dev_priv)) {
-		source_rates = cnl_rates;
-		size = ARRAY_SIZE(cnl_rates);
-		if (DISPLAY_VER(dev_priv) == 10)
-			max_rate = cnl_max_source_rate(intel_dp);
-		else if (IS_JSL_EHL(dev_priv))
+	if (DISPLAY_VER(dev_priv) >= 11) {
+		source_rates = icl_rates;
+		size = ARRAY_SIZE(icl_rates);
+		if (IS_JSL_EHL(dev_priv))
 			max_rate = ehl_max_source_rate(intel_dp);
 		else
 			max_rate = icl_max_source_rate(intel_dp);
-- 
2.25.1