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SubjectRE: [PATCH v4 2/2] usb: phy: samsung: Add PHY support for USB 3.0 controller
Date
Vivek Gautam wrote:
>
> Adding PHY driver support for USB 3.0 controller for Samsung's
> SoCs.
>
> Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
> ---
>
> Changes from v3:
> - Making SAMSUNG_USB3PHY dependent on SAMSUNG_USBPHY.
> - Adding USB_DWC3 to dependencies of SAMSUNG_USB2PHY since
> dwc3 controller also looks for USB2 type PHY.
>
> drivers/usb/phy/Kconfig | 11 +-
> drivers/usb/phy/Makefile | 1 +
> drivers/usb/phy/samsung-usb3.c | 349
> ++++++++++++++++++++++++++++++++++++++
> drivers/usb/phy/samsung-usbphy.h | 81 +++++++++
> 4 files changed, 441 insertions(+), 1 deletions(-)
> create mode 100644 drivers/usb/phy/samsung-usb3.c
>
> diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
> index cc0d230..9325a95 100644
> --- a/drivers/usb/phy/Kconfig
> +++ b/drivers/usb/phy/Kconfig
> @@ -52,14 +52,23 @@ config SAMSUNG_USBPHY
> help
> Enable this to support Samsung USB phy controllers for Samsung
> SoCs.
> + Further enable USB 2.0 type PHY or USB 3.0 type PHY as required
> + for USB controllers in use.
>
> if SAMSUNG_USBPHY
>
> config SAMSUNG_USB2PHY
> bool "Samsung USB 2.0 PHY controller Driver"
> - depends on USB_S3C_HSOTG || USB_EHCI_S5P ||
> USB_OHCI_EXYNOS
> + depends on USB_S3C_HSOTG || USB_EHCI_S5P ||
> USB_OHCI_EXYNOS || USB_DWC3
> help
> Enable this to support Samsung USB 2.0 (High Speed) phy controller
> for Samsung SoCs.
>
> +config SAMSUNG_USB3PHY
> + bool "Samsung USB 3.0 PHY controller Driver"
> + depends on USB_DWC3
> + help
> + Enable this to support Samsung USB 3.0 (Super Speed) phy
> controller
> + for samsung SoCs.
> +
> endif

It mean, when USB_DWC3 is selected, we can select only one USB2PHY or
USB3PHY?

[...]

> +#ifdef CONFIG_OF
> +static const struct of_device_id samsung_usbphy_dt_match[] = {
> + {
> + .compatible = "samsung,exynos5250-usb3-phy",
> + .data = &usb3_phy_exynos5
> + },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, samsung_usbphy_dt_match);
> +#endif
> +
> +static struct platform_device_id samsung_usbphy_driver_ids[] = {
> + {
> + .name = "exynos5250-usb3-phy",

According to the name of file, exynos5250-usb3phy? Just it is imho...

> + .driver_data = (unsigned long)&usb3_phy_exynos5,
> + },
> + {},
> +};
> +
> +MODULE_DEVICE_TABLE(platform, samsung_usbphy_driver_ids);
> +
> +static struct platform_driver samsung_usb3_phy_driver = {
> + .probe = samsung_usb3_phy_probe,
> + .remove = samsung_usb3_phy_remove,
> + .id_table = samsung_usbphy_driver_ids,
> + .driver = {
> + .name = "samsung-usb3-phy",
> + .owner = THIS_MODULE,
> + .of_match_table =
> of_match_ptr(samsung_usbphy_dt_match),
> + },
> +};
> +
> +module_platform_driver(samsung_usb3_phy_driver);
> +
> +MODULE_DESCRIPTION("Samsung USB 3.0 phy controller");
> +MODULE_AUTHOR("Vivek Gautam <gautam.vivek@samsung.com>");
> +MODULE_LICENSE("GPL");
> +MODULE_ALIAS("platform:samsung-usb3-phy");

I want you to use same naming rule.

Thanks.

- Kukjin



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