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Diffstat (limited to 'arch/arm/cpu/armv7/sunxi/usbc.c')
-rw-r--r--arch/arm/cpu/armv7/sunxi/usbc.c43
1 files changed, 39 insertions, 4 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/usbc.c b/arch/arm/cpu/armv7/sunxi/usbc.c
index f4f7217a6d..1c777aac49 100644
--- a/arch/arm/cpu/armv7/sunxi/usbc.c
+++ b/arch/arm/cpu/armv7/sunxi/usbc.c
@@ -41,6 +41,7 @@ static struct sunxi_usbc_hcd {
int usb_rst_mask;
int ahb_clk_mask;
int gpio_vbus;
+ int gpio_vbus_det;
int irq;
int id;
} sunxi_usbc_hcd[] = {
@@ -104,6 +105,14 @@ static int get_vbus_gpio(int index)
return -1;
}
+static int get_vbus_detect_gpio(int index)
+{
+ switch (index) {
+ case 0: return sunxi_name_to_gpio(CONFIG_USB0_VBUS_DET);
+ }
+ return -1;
+}
+
static void usb_phy_write(struct sunxi_usbc_hcd *sunxi_usbc, int addr,
int data, int len)
{
@@ -183,22 +192,31 @@ void sunxi_usbc_enable_squelch_detect(int index, int enable)
int sunxi_usbc_request_resources(int index)
{
struct sunxi_usbc_hcd *sunxi_usbc = &sunxi_usbc_hcd[index];
+ int ret = 0;
sunxi_usbc->gpio_vbus = get_vbus_gpio(index);
if (sunxi_usbc->gpio_vbus != -1)
- return gpio_request(sunxi_usbc->gpio_vbus, "usbc_vbus");
+ ret |= gpio_request(sunxi_usbc->gpio_vbus, "usbc_vbus");
- return 0;
+ sunxi_usbc->gpio_vbus_det = get_vbus_detect_gpio(index);
+ if (sunxi_usbc->gpio_vbus_det != -1)
+ ret |= gpio_request(sunxi_usbc->gpio_vbus_det, "usbc_vbus_det");
+
+ return ret;
}
int sunxi_usbc_free_resources(int index)
{
struct sunxi_usbc_hcd *sunxi_usbc = &sunxi_usbc_hcd[index];
+ int ret = 0;
if (sunxi_usbc->gpio_vbus != -1)
- return gpio_free(sunxi_usbc->gpio_vbus);
+ ret |= gpio_free(sunxi_usbc->gpio_vbus);
+
+ if (sunxi_usbc->gpio_vbus_det != -1)
+ ret |= gpio_free(sunxi_usbc->gpio_vbus_det);
- return 0;
+ return ret;
}
void sunxi_usbc_enable(int index)
@@ -260,3 +278,20 @@ void sunxi_usbc_vbus_disable(int index)
if (sunxi_usbc->gpio_vbus != -1)
gpio_direction_output(sunxi_usbc->gpio_vbus, 0);
}
+
+int sunxi_usbc_vbus_detect(int index)
+{
+ struct sunxi_usbc_hcd *sunxi_usbc = &sunxi_usbc_hcd[index];
+ int err;
+
+ if (sunxi_usbc->gpio_vbus_det == -1) {
+ eprintf("Error: invalid vbus detection pin\n");
+ return -1;
+ }
+
+ err = gpio_direction_input(sunxi_usbc->gpio_vbus_det);
+ if (err)
+ return err;
+
+ return gpio_get_value(sunxi_usbc->gpio_vbus_det);
+}