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From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 19 Dec 2019 19:28:36 +0100
Subject: [PATCH] rpi: Enable USB Power domain during startup
Enable the USB Power domain during startup. The power domain is
abstracted as a regulator in barebox, but modelled as a power domain in
the device tree. Until this is sorted out just enable the power domain
or regulator in the board code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/boards/raspberry-pi/rpi-common.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/boards/raspberry-pi/rpi-common.c b/arch/arm/boards/raspberry-pi/rpi-common.c
index acb26f6a6491..45961b52eeaa 100644
--- a/arch/arm/boards/raspberry-pi/rpi-common.c
+++ b/arch/arm/boards/raspberry-pi/rpi-common.c
@@ -21,6 +21,7 @@
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <envfs.h>
+#include <regulator.h>
#include <malloc.h>
#include <libfile.h>
#include <gpio.h>
@@ -462,11 +463,20 @@ static void rpi_vc_fdt(void)
static int rpi_devices_init(void)
{
+ struct regulator *reg;
+
rpi_model_init();
bcm2835_register_fb();
armlinux_set_architecture(MACH_TYPE_BCM2708);
rpi_env_init();
rpi_vc_fdt();
+
+ reg = regulator_get_name("bcm2835_usb");
+ if (IS_ERR(reg))
+ return PTR_ERR(reg);
+
+ regulator_enable(reg);
+
return 0;
}
late_initcall(rpi_devices_init);
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