From 106822de5eec09cdf082f0d900d707190ffa30f8 Mon Sep 17 00:00:00 2001 From: Sumit Garg Date: Thu, 4 Aug 2022 19:57:20 +0530 Subject: 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 --- board/qualcomm/qcs404-evb/qcs404-evb.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'board/qualcomm') diff --git a/board/qualcomm/qcs404-evb/qcs404-evb.c b/board/qualcomm/qcs404-evb/qcs404-evb.c index f1e6e7f7eb..249dca7e72 100644 --- a/board/qualcomm/qcs404-evb/qcs404-evb.c +++ b/board/qualcomm/qcs404-evb/qcs404-evb.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include @@ -24,6 +25,34 @@ int dram_init(void) 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; } -- cgit v1.2.3