[coreboot-gerrit] Change in coreboot[master]: mb/google/zork: Cleanup bt reset_gpio removal

[Rob Barnes (Code Review)]

Rob Barnes has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/44273 )

Change subject: mb/google/zork: Cleanup bt reset_gpio removal
......................................................................

mb/google/zork: Cleanup bt reset_gpio removal

Cleanup of bt reset_gpio removal function.

TEST=Boot and observe log showing bt reset_gpio was removed
BUG=b:157580724

Signed-off-by: Rob Barnes 
Change-Id: I1d40ad16dd3c624d4be89d9eea1835cc4e72c03d
---
M src/mainboard/google/zork/variants/baseboard/ramstage_common.c
1 file changed, 64 insertions(+), 67 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/73/44273/1

diff --git a/src/mainboard/google/zork/variants/baseboard/ramstage_common.c b/src/mainboard/google/zork/variants/baseboard/ramstage_common.c
index b2c5830..4f1be8a 100644
--- a/src/mainboard/google/zork/variants/baseboard/ramstage_common.c
+++ b/src/mainboard/google/zork/variants/baseboard/ramstage_common.c
@@ -51,87 +51,84 @@
    }
 }

-static const struct device_path xhci0_bt_path[] = {
-	{
-		.type = DEVICE_PATH_PCI,
-		.pci.devfn = PCIE_GPP_A_DEVFN
-	},
-	{
-		.type = DEVICE_PATH_PCI,
-		.pci.devfn = XHCI0_DEVFN
-	},
-	{
-		.type = DEVICE_PATH_USB,
-		.usb.port_type = 0,
-		.usb.port_id = 0
-	},
-	{
-		.type = DEVICE_PATH_USB,
-		.usb.port_type = 2,
-		.usb.port_id = 5
-	}
-};
-
-static const struct device_path xhci1_bt_path[] = {
-	{
-		.type = DEVICE_PATH_PCI,
-		.pci.devfn = PCIE_GPP_A_DEVFN
-	},
-	{
-		.type = DEVICE_PATH_PCI,
-		.pci.devfn = XHCI1_DEVFN
-	},
-	{
-		.type = DEVICE_PATH_USB,
-		.usb.port_type = 0,
-		.usb.port_id = 0
-	},
-	{
-		.type = DEVICE_PATH_USB,
-		.usb.port_type = 2,
-		.usb.port_id = 1
-	}
-};

/*
- * Removes reset_gpio from bluetooth device in device tree.
- *
- * The bluetooth device may be on XHCI0 or XHCI1 depending on SOC.
- * There's no harm in removing from both here.
+ * Removes reset_gpio from usb device in device tree.
  */
-static void baseboard_remove_bluetooth_reset_gpio(void)
+static void remove_usb_device_reset_gpio(const struct device_path usb_path[],
+					 size_t path_length)
 {
-	const struct device *xhci0_bt_dev, *xhci1_bt_dev;
-	struct drivers_usb_acpi_config *xhci0_bt_cfg, *xhci1_bt_cfg;

-	xhci0_bt_dev = find_dev_nested_path(
-		pci_root_bus(), xhci0_bt_path, ARRAY_SIZE(xhci0_bt_path));
-	if (!xhci0_bt_dev) {
-		printk(BIOS_ERR, "%s: Failed to find bluetooth device on XHCI0!", __func__);
+	const struct device *usb_dev;
+	struct drivers_usb_acpi_config *usb_cfg;
+
+	usb_dev = find_dev_nested_path(
+		pci_root_bus(), usb_path, path_length);
+	if (!usb_dev) {
+		printk(BIOS_ERR, "%s: Failed to find USB device!", __func__);
    	return;
    }
    /* config_of dies on failure, so a NULL check is not required */
-	xhci0_bt_cfg = config_of(xhci0_bt_dev);
-	xhci0_bt_cfg->reset_gpio.pin_count = 0;
+	usb_cfg = config_of(usb_dev);
+	usb_cfg->reset_gpio.pin_count = 0;
+}

-	/* There's no bluetooth device on XHCI1 on Dalboz */
-	if (CONFIG(BOARD_GOOGLE_BASEBOARD_DALBOZ))
-		return;
+/*
+ * The bluetooth device may be on XHCI0 or XHCI1 depending on SOC.
+ * There's no harm in removing reset_gpio from both here.
+ */
+static void baseboard_trembyle_remove_bluetooth_reset_gpio(void)
+{
+	static const struct device_path xhci0_bt_path[] = {
+		{
+			.type = DEVICE_PATH_PCI,
+			.pci.devfn = PCIE_GPP_A_DEVFN
+		},
+		{
+			.type = DEVICE_PATH_PCI,
+			.pci.devfn = XHCI0_DEVFN
+		},
+		{
+			.type = DEVICE_PATH_USB,
+			.usb.port_type = 0,
+			.usb.port_id = 0
+		},
+		{
+			.type = DEVICE_PATH_USB,
+			.usb.port_type = 2,
+			.usb.port_id = 5
+		}
+	};
+	static const struct device_path xhci1_bt_path[] = {
+		{
+			.type = DEVICE_PATH_PCI,
+			.pci.devfn = PCIE_GPP_A_DEVFN
+		},
+		{
+			.type = DEVICE_PATH_PCI,
+			.pci.devfn = XHCI1_DEVFN
+		},
+		{
+			.type = DEVICE_PATH_USB,
+			.usb.port_type = 0,
+			.usb.port_id = 0
+		},
+		{
+			.type = DEVICE_PATH_USB,
+			.usb.port_type = 2,
+			.usb.port_id = 1
+		}
+	};

-	xhci1_bt_dev = find_dev_nested_path(
-		pci_root_bus(), xhci1_bt_path, ARRAY_SIZE(xhci1_bt_path));
-	if (!xhci1_bt_dev) {
-		printk(BIOS_ERR, "%s: Failed to find bluetooth device on XHCI1!", __func__);
-		return;
-	}
-	xhci1_bt_cfg = config_of(xhci1_bt_dev);
-	xhci1_bt_cfg->reset_gpio.pin_count = 0;
+	remove_usb_device_reset_gpio(xhci0_bt_path, ARRAY_SIZE(xhci0_bt_path));
+	remove_usb_device_reset_gpio(xhci1_bt_path, ARRAY_SIZE(xhci1_bt_path));
 }

void variant_bluetooth_update(void)
 {
-	if (CONFIG(BOARD_GOOGLE_BASEBOARD_DALBOZ) || variant_uses_v3_schematics())
+	if (CONFIG(BOARD_GOOGLE_BASEBOARD_DALBOZ) || variant_uses_v3_schematics()) {
    	return;
+	}

-	baseboard_remove_bluetooth_reset_gpio();
+	baseboard_trembyle_remove_bluetooth_reset_gpio();
 }