diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2016-04-29 14:22:25 +0530 |
|---|---|---|
| committer | Kishon Vijay Abraham I <kishon@ti.com> | 2016-04-30 20:12:26 +0530 |
| commit | 2b38543c8db1c7dff48aa767fcbfba13f50514ca (patch) | |
| tree | d3fd232d1f267aec9e38c88848d9748a864d4545 /drivers/phy | |
| parent | 6dcfd7c300bf3588d4f2500e14d90ffea5595e84 (diff) | |
| download | linux-2b38543c8db1c7dff48aa767fcbfba13f50514ca.tar.bz2 | |
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>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/phy/phy-rcar-gen3-usb2.c | 26 |
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index a72d73cdaef3..447cb7c1a18d 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -121,6 +121,7 @@ config PHY_RCAR_GEN2 config PHY_RCAR_GEN3_USB2 tristate "Renesas R-Car generation 3 USB 2.0 PHY driver" depends on ARCH_RENESAS + depends on EXTCON select GENERIC_PHY help Support for USB 2.0 PHY found on Renesas R-Car generation 3 SoCs. diff --git a/drivers/phy/phy-rcar-gen3-usb2.c b/drivers/phy/phy-rcar-gen3-usb2.c index 7b14244be285..76bb88f0700a 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 @@ static void rcar_gen3_init_for_host(struct rcar_gen3_chan *ch) 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 @@ static void rcar_gen3_init_for_peri(struct rcar_gen3_chan *ch) 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 @@ static const struct of_device_id rcar_gen3_phy_usb2_match_table[] = { }; 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 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev) /* 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); */ |