kernel/linux.git/drivers/phy/realtek, branch v6.6

phy: realtek: Realtek PHYs should depend on ARCH_REALTEK

2023-09-29T16:17:37+00:00

The Realtek SoC USB2 and USB3 PHY Transceivers are only present on Realtek Digital Home Center (DHC) RTD series SoCs. Hence add a dependency on ARCH_REALTEK, to prevent asking the user about these drivers when configuring a kernel without Realtek SoC support. Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/2892527cac9af6fa8f5e7b8daeffd7d4351fde68.1692113167.git.geert+renesas@glider.be Signed-off-by: Vinod Koul

phy: realtek: usb: Drop unnecessary error check for debugfs_create_dir()

2023-09-21T14:14:22+00:00

Both debugfs_create_dir() and debugfs_create_file() return ERR_PTR and never return NULL. As Greg suggested, this patch removes the error checking for debugfs_create_dir in phy-rtk-usb2.c and phy-rtk-usb3.c. This is because the DebugFS kernel API is developed in a way that the caller can safely ignore the errors that occur during the creation of DebugFS nodes. The debugfs APIs have a IS_ERR() judge in start_creating() which can handle it gracefully. So these checks are unnecessary. Fixes: 134e6d25f6bd ("phy: realtek: usb: Add driver for the Realtek SoC USB 2.0 PHY") Fixes: adda6e82a7de ("phy: realtek: usb: Add driver for the Realtek SoC USB 3.0 PHY") Signed-off-by: Jinjie Ruan Suggested-by: Greg Kroah-Hartman Reviewed-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20230901075231.1368947-1-ruanjinjie@huawei.com Signed-off-by: Vinod Koul

phy: realtek: usb: add the error handler for nvmem_cell_read

2023-08-04T12:47:18+00:00

There are following smatch warning: drivers/phy/realtek/phy-rtk-usb2.c:901 get_phy_data_by_efuse() error: 'buf' dereferencing possible ERR_PTR() drivers/phy/realtek/phy-rtk-usb2.c:942 get_phy_data_by_efuse() error: 'buf' dereferencing possible ERR_PTR() drivers/phy/realtek/phy-rtk-usb3.c:460 get_phy_data_by_efuse() error: 'buf' dereferencing possible ERR_PTR() The nvmem_cell_read may fail to read. So, driver must handle failure cases. Fixes: 134e6d25f6bd ("phy: realtek: usb: Add driver for the Realtek SoC USB 2.0 PHY") Fixes: adda6e82a7de ("phy: realtek: usb: Add driver for the Realtek SoC USB 3.0 PHY") Reported-by: Dan Carpenter Closes: https://lore.kernel.org/linux-phy/e7ff2870-c30c-4d8d-a7a9-d2d6a4962eb5@kadam.mountain/ Signed-off-by: Stanley Chang Link: https://lore.kernel.org/r/20230801071509.20096-1-stanley_chang@realtek.com Signed-off-by: Greg Kroah-Hartman

phy: realtek: usb: phy-rtk-usb2 and phy-rtk-usb3 needs USB_COMMON

2023-07-30T11:26:17+00:00

When USB_COMMON are not enabled, phy-rtk-usb2 and phy-rtk-usb3 suffers a build error due to a missing usb_debug_root that is provided by CONFIG_USB_COMMON, so make the driver select USB_COMMON. or1k-linux-ld: drivers/phy/realtek/phy-rtk-usb2.o: in function `create_phy_debug_root': >> drivers/phy/realtek/phy-rtk-usb2.c:715: undefined reference to `usb_debug_root' >> or1k-linux-ld: drivers/phy/realtek/phy-rtk-usb2.c:715: undefined reference to `usb_debug_root' or1k-linux-ld: drivers/phy/realtek/phy-rtk-usb3.o: in function `create_phy_debug_root': >> drivers/phy/realtek/phy-rtk-usb3.c:349: undefined reference to `usb_debug_root' >> or1k-linux-ld: drivers/phy/realtek/phy-rtk-usb3.c:349: undefined reference to `usb_debug_root' Fixes: 134e6d25f6bd ("phy: realtek: usb: Add driver for the Realtek SoC USB 2.0 PHY") Fixed: adda6e82a7de ("phy: realtek: usb: Add driver for the Realtek SoC USB 3.0 PHY") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202307290733.weSlHrGp-lkp@intel.com/ Closes: https://lore.kernel.org/oe-kbuild-all/202307291022.3pVeTR9z-lkp@intel.com/ Signed-off-by: Stanley Chang Link: https://lore.kernel.org/r/20230729053029.6226-1-stanley_chang@realtek.com Signed-off-by: Greg Kroah-Hartman

phy: realtek: usb: Add driver for the Realtek SoC USB 3.0 PHY

2023-07-26T04:38:14+00:00

Realtek DHC (digital home center) RTD SoCs support DWC3 XHCI USB controller. Added the driver to drive the USB 3.0 PHY transceivers. Signed-off-by: Stanley Chang Link: https://lore.kernel.org/r/20230725033318.8361-3-stanley_chang@realtek.com Signed-off-by: Greg Kroah-Hartman

phy: realtek: usb: Add driver for the Realtek SoC USB 2.0 PHY

2023-07-26T04:38:14+00:00

Realtek DHC (digital home center) RTD SoCs support DWC3 XHCI USB controller. Added the driver to drive the USB 2.0 PHY transceivers. Signed-off-by: Stanley Chang Link: https://lore.kernel.org/r/20230725033318.8361-2-stanley_chang@realtek.com Signed-off-by: Greg Kroah-Hartman