diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2015-06-14 17:29:53 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-07-25 11:22:54 +0200 |
| commit | 48c06c98ecd99b2a4752461b6cc5c4a05d2f616a (patch) | |
| tree | a788b50d91c8e39faa524d07454d5197fc5e3486 /arch | |
| parent | de1502c937c75527a08b40380ceb4824ae9ac86c (diff) | |
| download | talos-obmc-uboot-48c06c98ecd99b2a4752461b6cc5c4a05d2f616a.tar.gz talos-obmc-uboot-48c06c98ecd99b2a4752461b6cc5c4a05d2f616a.zip | |
sunxi: usb-phy: Add support for reading otg id pin value
Add support for reading the id pin value of the otg connector to the usb
phy code.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/usb_phy.c | 34 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/usb_phy.h | 1 |
2 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/usb_phy.c b/arch/arm/cpu/armv7/sunxi/usb_phy.c index b07d67ff3f..5e82ddc505 100644 --- a/arch/arm/cpu/armv7/sunxi/usb_phy.c +++ b/arch/arm/cpu/armv7/sunxi/usb_phy.c @@ -44,6 +44,7 @@ static struct sunxi_usb_phy { int usb_rst_mask; int gpio_vbus; int gpio_vbus_det; + int gpio_id_det; int id; int init_count; int power_on_count; @@ -82,6 +83,14 @@ static int get_vbus_detect_gpio(int index) return -EINVAL; } +static int get_id_detect_gpio(int index) +{ + switch (index) { + case 0: return sunxi_name_to_gpio(CONFIG_USB0_ID_DET); + } + return -EINVAL; +} + static void usb_phy_write(struct sunxi_usb_phy *phy, int addr, int data, int len) { @@ -247,6 +256,16 @@ int sunxi_usb_phy_vbus_detect(int index) return err; } +int sunxi_usb_phy_id_detect(int index) +{ + struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; + + if (phy->gpio_id_det < 0) + return phy->gpio_id_det; + + return gpio_get_value(phy->gpio_id_det); +} + int sunxi_usb_phy_probe(void) { struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; @@ -275,6 +294,18 @@ int sunxi_usb_phy_probe(void) if (ret) return ret; } + + phy->gpio_id_det = get_id_detect_gpio(i); + if (phy->gpio_id_det >= 0) { + ret = gpio_request(phy->gpio_id_det, "usb_id_det"); + if (ret) + return ret; + ret = gpio_direction_input(phy->gpio_id_det); + if (ret) + return ret; + sunxi_gpio_set_pull(phy->gpio_id_det, + SUNXI_GPIO_PULL_UP); + } } setbits_le32(&ccm->usb_clk_cfg, CCM_USB_CTRL_PHYGATE); @@ -298,6 +329,9 @@ int sunxi_usb_phy_remove(void) if (phy->gpio_vbus_det >= 0) gpio_free(phy->gpio_vbus_det); + + if (phy->gpio_id_det >= 0) + gpio_free(phy->gpio_id_det); } return 0; diff --git a/arch/arm/include/asm/arch-sunxi/usb_phy.h b/arch/arm/include/asm/arch-sunxi/usb_phy.h index b7b831e24a..5a9cacb6f4 100644 --- a/arch/arm/include/asm/arch-sunxi/usb_phy.h +++ b/arch/arm/include/asm/arch-sunxi/usb_phy.h @@ -17,4 +17,5 @@ void sunxi_usb_phy_exit(int index); void sunxi_usb_phy_power_on(int index); void sunxi_usb_phy_power_off(int index); int sunxi_usb_phy_vbus_detect(int index); +int sunxi_usb_phy_id_detect(int index); void sunxi_usb_phy_enable_squelch_detect(int index, int enable); |
