From 566f87a24972837419ec789164200445167d6e95 Mon Sep 17 00:00:00 2001
From: David Wu <david_wu@quanta.corp-partner.google.com>
Date: Thu, 27 Mar 2025 11:57:34 +0800
Subject: [PATCH] mb/google/nissa/var/dirks: Add romstage early graphics for
 dirks

Dirks is chromebox, enable early graphics support for HDMI.

BUG=b:399236160
TEST=On-screen text message seen during MRC training on dirks

Change-Id: I8ab2c3a2cc72059facbbc0bba59cc480a5081a9e
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87020
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Jayvik Desai <jayvik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
---
 .../baseboard/nissa/gma-mainboard.ads         |  2 ++
 .../google/brya/variants/dirks/gpio.c         | 30 +++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/src/mainboard/google/brya/variants/baseboard/nissa/gma-mainboard.ads b/src/mainboard/google/brya/variants/baseboard/nissa/gma-mainboard.ads
index 3b02f14d95..bb28ffdf1f 100644
--- a/src/mainboard/google/brya/variants/baseboard/nissa/gma-mainboard.ads
+++ b/src/mainboard/google/brya/variants/baseboard/nissa/gma-mainboard.ads
@@ -9,5 +9,7 @@ use HW.GFX.GMA.Display_Probing;
 private package GMA.Mainboard is
    ports : constant Port_List :=
      (eDP,
+      HDMI1,
+      HDMI2,
       others => Disabled);
 end GMA.Mainboard;
diff --git a/src/mainboard/google/brya/variants/dirks/gpio.c b/src/mainboard/google/brya/variants/dirks/gpio.c
index 209ca047dc..19e540a682 100644
--- a/src/mainboard/google/brya/variants/dirks/gpio.c
+++ b/src/mainboard/google/brya/variants/dirks/gpio.c
@@ -2,6 +2,7 @@
 
 #include <baseboard/gpio.h>
 #include <baseboard/variants.h>
+#include <intelblocks/early_graphics.h>
 #include <soc/gpio.h>
 
 /* Pad configuration in ramstage for dirks */
@@ -146,6 +147,35 @@ static const struct pad_config romstage_gpio_table[] = {
 	PAD_CFG_GPO(GPP_H20, 1, DEEP),
 };
 
+const struct pad_config early_graphics_gpio_table[] = {
+	/* A18 : NC ==> HDMI2_HPD*/
+	PAD_CFG_NF(GPP_A18, NONE, DEEP, NF1),
+	/* A20 : DDSP_HPD2 ==> EC_SOC_HDMI_HPD */
+	PAD_CFG_NF(GPP_A20, NONE, DEEP, NF1),
+
+	/* E14 : DDSP_HPDA ==> HDMI1_HPD */
+	PAD_CFG_NF(GPP_E14, NONE, DEEP, NF1),
+	/* E20 : DDP2_CTRLCLK ==> HDMI_DDC_SCL */
+	PAD_CFG_NF(GPP_E20, NONE, DEEP, NF1),
+	/* E21 : DDP2_CTRLDATA ==> HDMI_DDC_SDA_STRAP */
+	PAD_CFG_NF(GPP_E21, NONE, DEEP, NF1),
+	/* E22 : DDPA_CTRLCLK ==> DDPA_CTRLCLK */
+	PAD_CFG_NF(GPP_E22, NONE, DEEP, NF1),
+	/* E23 : DDPA_CTRLDATA ==> DDPA_CTRLDATA */
+	PAD_CFG_NF(GPP_E23, NONE, DEEP, NF1),
+
+	/* H15 : HDMI_SRC_DDC_SCL */
+	PAD_CFG_NF(GPP_H15, NONE, DEEP, NF1),
+	/* H17 : HDMI_SRC_DDC_SDA */
+	PAD_CFG_NF(GPP_H17, NONE, DEEP, NF1),
+};
+
+const struct pad_config *variant_early_graphics_gpio_table(size_t *num)
+{
+	*num = ARRAY_SIZE(early_graphics_gpio_table);
+	return early_graphics_gpio_table;
+}
+
 const struct pad_config *variant_gpio_override_table(size_t *num)
 {
 	*num = ARRAY_SIZE(override_gpio_table);