From d757535e3116c1a5f024bfef1ab3544a525f03fb Mon Sep 17 00:00:00 2001
From: Mahesh Kumar <mahesh1.kumar@intel.com>
Date: Thu, 11 Jul 2019 10:31:13 -0700
Subject: drm/i915/tgl: Add vbt value mapping for DDC Bus pin
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Git-commit: d757535e3116c1a5f024bfef1ab3544a525f03fb
Patch-mainline: v5.4-rc1
References: bsc#1152489
Add VBT-value to DDC bus pin mapping for the same.
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190711173115.28296-20-lucas.demarchi@intel.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/display/intel_bios.c | 17 ++++++++++++++++-
drivers/gpu/drm/i915/display/intel_vbt_defs.h | 3 +++
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 4fdbb5c35d87..2fe68f72b88f 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -1355,12 +1355,27 @@ static const u8 mcc_ddc_pin_map[] = {
[MCC_DDC_BUS_DDI_C] = GMBUS_PIN_9_TC1_ICP,
};
+static const u8 tgp_ddc_pin_map[] = {
+ [ICL_DDC_BUS_DDI_A] = GMBUS_PIN_1_BXT,
+ [ICL_DDC_BUS_DDI_B] = GMBUS_PIN_2_BXT,
+ [TGL_DDC_BUS_DDI_C] = GMBUS_PIN_3_BXT,
+ [ICL_DDC_BUS_PORT_1] = GMBUS_PIN_9_TC1_ICP,
+ [ICL_DDC_BUS_PORT_2] = GMBUS_PIN_10_TC2_ICP,
+ [ICL_DDC_BUS_PORT_3] = GMBUS_PIN_11_TC3_ICP,
+ [ICL_DDC_BUS_PORT_4] = GMBUS_PIN_12_TC4_ICP,
+ [TGL_DDC_BUS_PORT_5] = GMBUS_PIN_13_TC5_TGP,
+ [TGL_DDC_BUS_PORT_6] = GMBUS_PIN_14_TC6_TGP,
+};
+
static u8 map_ddc_pin(struct drm_i915_private *dev_priv, u8 vbt_pin)
{
const u8 *ddc_pin_map;
int n_entries;
- if (HAS_PCH_MCC(dev_priv)) {
+ if (HAS_PCH_TGP(dev_priv)) {
+ ddc_pin_map = tgp_ddc_pin_map;
+ n_entries = ARRAY_SIZE(tgp_ddc_pin_map);
+ } else if (HAS_PCH_MCC(dev_priv)) {
ddc_pin_map = mcc_ddc_pin_map;
n_entries = ARRAY_SIZE(mcc_ddc_pin_map);
} else if (HAS_PCH_ICP(dev_priv)) {
diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index 2f4894e9a03d..93f5c9d204d6 100644
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -310,10 +310,13 @@ enum vbt_gmbus_ddi {
DDC_BUS_DDI_F,
ICL_DDC_BUS_DDI_A = 0x1,
ICL_DDC_BUS_DDI_B,
+ TGL_DDC_BUS_DDI_C,
ICL_DDC_BUS_PORT_1 = 0x4,
ICL_DDC_BUS_PORT_2,
ICL_DDC_BUS_PORT_3,
ICL_DDC_BUS_PORT_4,
+ TGL_DDC_BUS_PORT_5,
+ TGL_DDC_BUS_PORT_6,
MCC_DDC_BUS_DDI_A = 0x1,
MCC_DDC_BUS_DDI_B,
MCC_DDC_BUS_DDI_C = 0x4,
--
2.28.0