[PATCH 1/1][SRU][OEM-5.10] UBUNTU: SAUCE: drm/i915/rkl: new rkl ddc map for different PCH
AceLan Kao
acelan.kao at canonical.com
Tue Nov 10 09:17:45 UTC 2020
From: Lee Shawn C <shawn.c.lee at intel.com>
BugLink: https://bugs.launchpad.net/bugs/1903665
After boot into kernel. Driver configured ddc pin mapping based on
predefined table in parse_ddi_port(). Now driver configure rkl
ddc pin mapping depends on icp_ddc_pin_map[]. Then this table will
give incorrect gmbus port number to cause HDMI can't work.
Refer to commit d0a89527d06 ("drm/i915/rkl: Add DDC pin mapping").
Create two ddc pin table for rkl TGP and CMP pch. Then HDMI can
works properly on rkl.
v2: update patch based on latest dinq branch.
v3: update ddc table for RKL+TGP sku.
RKL+CNP sku will load cnp_ddc_pin_map[] setting.
Cc: Matt Roper <matthew.d.roper at intel.com>
Cc: Aditya Swarup <aditya.swarup at intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa at intel.com>
Cc: Jani Nikula <jani.nikula at linux.intel.com>
Cc: Cooper Chiou <cooper.chiou at intel.com>
Cc: Khaled Almahallawy <khaled.almahallawy at intel.com>
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2577
Signed-off-by: Lee Shawn C <shawn.c.lee at intel.com>
Signed-off-by: AceLan Kao <acelan.kao at canonical.com>
---
drivers/gpu/drm/i915/display/intel_bios.c | 16 ++++++++++++++--
drivers/gpu/drm/i915/display/intel_vbt_defs.h | 2 ++
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 390ebff0f1a3..23614a6728f1 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -1598,14 +1598,26 @@ static const u8 icp_ddc_pin_map[] = {
[TGL_DDC_BUS_PORT_6] = GMBUS_PIN_14_TC6_TGP,
};
+static const u8 rkl_pch_tgp_ddc_pin_map[] = {
+ [ICL_DDC_BUS_DDI_A] = GMBUS_PIN_1_BXT,
+ [ICL_DDC_BUS_DDI_B] = GMBUS_PIN_2_BXT,
+ [RKL_DDC_BUS_DDI_D] = GMBUS_PIN_9_TC1_ICP,
+ [RKL_DDC_BUS_DDI_E] = GMBUS_PIN_10_TC2_ICP,
+};
+
static u8 map_ddc_pin(struct drm_i915_private *dev_priv, u8 vbt_pin)
{
const u8 *ddc_pin_map;
int n_entries;
if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP) {
- ddc_pin_map = icp_ddc_pin_map;
- n_entries = ARRAY_SIZE(icp_ddc_pin_map);
+ if (IS_ROCKETLAKE(dev_priv)) {
+ ddc_pin_map = rkl_pch_tgp_ddc_pin_map;
+ n_entries = ARRAY_SIZE(rkl_pch_tgp_ddc_pin_map);
+ } else {
+ ddc_pin_map = icp_ddc_pin_map;
+ n_entries = ARRAY_SIZE(icp_ddc_pin_map);
+ }
} else if (HAS_PCH_CNP(dev_priv)) {
ddc_pin_map = cnp_ddc_pin_map;
n_entries = ARRAY_SIZE(cnp_ddc_pin_map);
diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index 54bcc6a6947c..1a17ef519d74 100644
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -319,6 +319,8 @@ enum vbt_gmbus_ddi {
ICL_DDC_BUS_DDI_A = 0x1,
ICL_DDC_BUS_DDI_B,
TGL_DDC_BUS_DDI_C,
+ RKL_DDC_BUS_DDI_D = 0x3,
+ RKL_DDC_BUS_DDI_E,
ICL_DDC_BUS_PORT_1 = 0x4,
ICL_DDC_BUS_PORT_2,
ICL_DDC_BUS_PORT_3,
--
2.25.1
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