From 226f325973fc830f5ee93f64db9994d5f8602de7 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Fri, 17 Mar 2023 12:31:47 +0100 Subject: phy: Add mode setting support Signed-off-by: Sascha Hauer --- drivers/phy/phy-core.c | 15 +++++++++++++++ include/linux/phy/phy.h | 41 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+) diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index a5dd32e666..1a23f35b95 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -203,6 +203,21 @@ int phy_power_off(struct phy *phy) return 0; } +int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, int submode) +{ + int ret; + + if (!phy || !phy->ops->set_mode) + return 0; + + ret = phy->ops->set_mode(phy, mode, submode); + if (!ret) + phy->attrs.mode = mode; + + return ret; +} +EXPORT_SYMBOL_GPL(phy_set_mode_ext); + struct usb_phy *phy_to_usbphy(struct phy *phy) { if (!phy) diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 5dcc5b108a..9f01bc3e9f 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -20,12 +20,36 @@ struct phy; +enum phy_mode { + PHY_MODE_INVALID, + PHY_MODE_USB_HOST, + PHY_MODE_USB_HOST_LS, + PHY_MODE_USB_HOST_FS, + PHY_MODE_USB_HOST_HS, + PHY_MODE_USB_HOST_SS, + PHY_MODE_USB_DEVICE, + PHY_MODE_USB_DEVICE_LS, + PHY_MODE_USB_DEVICE_FS, + PHY_MODE_USB_DEVICE_HS, + PHY_MODE_USB_DEVICE_SS, + PHY_MODE_USB_OTG, + PHY_MODE_UFS_HS_A, + PHY_MODE_UFS_HS_B, + PHY_MODE_PCIE, + PHY_MODE_ETHERNET, + PHY_MODE_MIPI_DPHY, + PHY_MODE_SATA, + PHY_MODE_LVDS, + PHY_MODE_DP +}; + /** * struct phy_ops - set of function pointers for performing phy operations * @init: operation to be performed for initializing phy * @exit: operation to be performed while exiting * @power_on: powering on the phy * @power_off: powering off the phy + * @set_mode: set the mode of the phy * @owner: the module owner containing the ops */ struct phy_ops { @@ -33,15 +57,18 @@ struct phy_ops { int (*exit)(struct phy *phy); int (*power_on)(struct phy *phy); int (*power_off)(struct phy *phy); + int (*set_mode)(struct phy *phy, enum phy_mode mode, int submode); struct usb_phy *(*to_usbphy)(struct phy *phy); }; /** * struct phy_attrs - represents phy attributes * @bus_width: Data path width implemented by PHY + * @mode: PHY mode */ struct phy_attrs { u32 bus_width; + enum phy_mode mode; }; /** @@ -125,6 +152,9 @@ int phy_init(struct phy *phy); int phy_exit(struct phy *phy); int phy_power_on(struct phy *phy); int phy_power_off(struct phy *phy); +int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, int submode); +#define phy_set_mode(phy, mode) \ + phy_set_mode_ext(phy, mode, 0) static inline int phy_get_bus_width(struct phy *phy) { return phy->attrs.bus_width; @@ -177,6 +207,17 @@ static inline int phy_power_off(struct phy *phy) return -ENOSYS; } +static inline int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, + int submode) +{ + if (!phy) + return 0; + return -ENOSYS; +} + +#define phy_set_mode(phy, mode) \ + phy_set_mode_ext(phy, mode, 0) + static inline int phy_get_bus_width(struct phy *phy) { return -ENOSYS; -- cgit v1.2.1