board: qcs404-evb: Enable USB3 specific PMIC GPIO
For USB3 host controller to detect devices on the bus it is required to
enable a PMIC GPIO: usb_vbus_boost_pin. So enable that during board
specific initialization.
And since this PMIC GPIO parsing is quite u-boot specific, so add a
DT override to qcs404-evb-uboot.dtsi to represent usb_vbus_boost_pin.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
diff --git a/board/qualcomm/qcs404-evb/qcs404-evb.c b/board/qualcomm/qcs404-evb/qcs404-evb.c
index f1e6e7f..249dca7 100644
--- a/board/qualcomm/qcs404-evb/qcs404-evb.c
+++ b/board/qualcomm/qcs404-evb/qcs404-evb.c
@@ -11,6 +11,7 @@
#include <env.h>
#include <init.h>
#include <asm/cache.h>
+#include <asm/gpio.h>
#include <asm/global_data.h>
#include <fdt_support.h>
#include <asm/arch/dram.h>
@@ -24,6 +25,34 @@
int board_init(void)
{
+ struct udevice *pmic_gpio;
+ struct gpio_desc usb_vbus_boost_pin;
+ int ret, node;
+
+ ret = uclass_get_device_by_name(UCLASS_GPIO,
+ "pms405_gpios@c000",
+ &pmic_gpio);
+ if (ret < 0) {
+ printf("Failed to find pms405_gpios@c000 node.\n");
+ return ret;
+ }
+
+ node = fdt_subnode_offset(gd->fdt_blob, dev_of_offset(pmic_gpio),
+ "usb_vbus_boost_pin");
+ if (node < 0) {
+ printf("Failed to find usb_hub_reset_pm dt node.\n");
+ return node;
+ }
+ ret = gpio_request_by_name_nodev(offset_to_ofnode(node), "gpios", 0,
+ &usb_vbus_boost_pin, 0);
+ if (ret < 0) {
+ printf("Failed to request usb_hub_reset_pm gpio.\n");
+ return ret;
+ }
+
+ dm_gpio_set_dir_flags(&usb_vbus_boost_pin,
+ GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
+
return 0;
}