[S] Change in coreboot[master]: mb/google/nissa/var/yaviks: Disable AUX pins based on FW_CONFIG

[Chen Wisley (Code Review)]

Attention is currently required from: Wisley Chen.

Hello Wisley Chen,

I'd like you to do a code review.
Please visit

https://review.coreboot.org/c/coreboot/+/77604?usp=email

to review the following change.

Change subject: mb/google/nissa/var/yaviks: Disable AUX pins based on FW_CONFIG
......................................................................

mb/google/nissa/var/yaviks: Disable AUX pins based on FW_CONFIG

Configure the AUX pins as NC based on the FW_CONFIG setting when
the C1 port is not present.

BUG=b:294456574
BRANCH=firmware-nissa-15217.B
TEST=emerge-nissa coreboot

Change-Id: I24fb8f16c2e3b05edf1056b5687ae5ea28c022c0
Signed-off-by: Wisley Chen 
---
M src/mainboard/google/brya/variants/yaviks/fw_config.c
1 file changed, 13 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/04/77604/1

diff --git a/src/mainboard/google/brya/variants/yaviks/fw_config.c b/src/mainboard/google/brya/variants/yaviks/fw_config.c
index c889c43..1012189 100644
--- a/src/mainboard/google/brya/variants/yaviks/fw_config.c
+++ b/src/mainboard/google/brya/variants/yaviks/fw_config.c
@@ -66,6 +66,13 @@
    PAD_NC(GPD8, NONE),
 };

+static const struct pad_config disable_usbc1_pins[] = {
+	/* GPP_A21: USB_C1_AUX_DC_P => NC */
+	PAD_NC(GPP_A21, NONE),
+	/* GPP_A22: USB_C1_AUX_DC_N => NC */
+	PAD_NC(GPP_A22, NONE),
+};
+
 void fw_config_gpio_padbased_override(struct pad_config *padbased_table)
 {
    if (fw_config_is_provisioned() && !fw_config_probe(FW_CONFIG(STORAGE, STORAGE_EMMC))) {
@@ -73,6 +80,11 @@
    	gpio_padbased_override(padbased_table, emmc_disable_pads,
    			       ARRAY_SIZE(emmc_disable_pads));
    }
+	if (fw_config_is_provisioned() && fw_config_probe(FW_CONFIG(DB_USB, DB_1A))) {
+		printk(BIOS_INFO, "Disable USBC1 AUX Pins.\n");
+		gpio_padbased_override(padbased_table, disable_usbc1_pins,
+					ARRAY_SIZE(disable_usbc1_pins));
+        }
    if (!fw_config_probe(FW_CONFIG(DB_USB, DB_1C_LTE))) {
    	printk(BIOS_INFO, "Disable LTE-related GPIO pins on yavilla.\n");
    	gpio_padbased_override(padbased_table, lte_disable_pads_yavilla,
@@ -94,4 +106,5 @@
    	gpio_padbased_override(padbased_table, disable_wifi_pch_susclk,
    				ARRAY_SIZE(disable_wifi_pch_susclk));
    }
+
 }