phy: rcar-gen3-usb2: add extcon support
This patch adds extcon support for otg related channel.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
diff --git a/drivers/phy/phy-rcar-gen3-usb2.c b/drivers/phy/phy-rcar-gen3-usb2.c
index 7b14244..76bb88f 100644
--- a/drivers/phy/phy-rcar-gen3-usb2.c
+++ b/drivers/phy/phy-rcar-gen3-usb2.c
@@ -12,6 +12,7 @@
* published by the Free Software Foundation.
*/
+#include <linux/extcon.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
@@ -77,6 +78,7 @@
struct rcar_gen3_chan {
void __iomem *base;
+ struct extcon_dev *extcon;
struct phy *phy;
struct regulator *vbus;
bool has_otg;
@@ -127,6 +129,9 @@
rcar_gen3_set_linectrl(ch, 1, 1);
rcar_gen3_set_host_mode(ch, 1);
rcar_gen3_enable_vbus_ctrl(ch, 1);
+
+ extcon_set_cable_state_(ch->extcon, EXTCON_USB_HOST, true);
+ extcon_set_cable_state_(ch->extcon, EXTCON_USB, false);
}
static void rcar_gen3_init_for_peri(struct rcar_gen3_chan *ch)
@@ -134,6 +139,9 @@
rcar_gen3_set_linectrl(ch, 0, 1);
rcar_gen3_set_host_mode(ch, 0);
rcar_gen3_enable_vbus_ctrl(ch, 0);
+
+ extcon_set_cable_state_(ch->extcon, EXTCON_USB_HOST, false);
+ extcon_set_cable_state_(ch->extcon, EXTCON_USB, true);
}
static bool rcar_gen3_check_vbus(struct rcar_gen3_chan *ch)
@@ -272,6 +280,12 @@
};
MODULE_DEVICE_TABLE(of, rcar_gen3_phy_usb2_match_table);
+static const unsigned int rcar_gen3_phy_cable[] = {
+ EXTCON_USB,
+ EXTCON_USB_HOST,
+ EXTCON_NONE,
+};
+
static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -297,11 +311,23 @@
/* call request_irq for OTG */
irq = platform_get_irq(pdev, 0);
if (irq >= 0) {
+ int ret;
+
irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq,
IRQF_SHARED, dev_name(dev), channel);
if (irq < 0)
dev_err(dev, "No irq handler (%d)\n", irq);
channel->has_otg = true;
+ channel->extcon = devm_extcon_dev_allocate(dev,
+ rcar_gen3_phy_cable);
+ if (IS_ERR(channel->extcon))
+ return PTR_ERR(channel->extcon);
+
+ ret = devm_extcon_dev_register(dev, channel->extcon);
+ if (ret < 0) {
+ dev_err(dev, "Failed to register extcon\n");
+ return ret;
+ }
}
/* devm_phy_create() will call pm_runtime_enable(dev); */