> -----Original Message-----
> From: Nikhil Badola [mailto:nikhil.bad...@freescale.com]
> Sent: Monday, June 15, 2015 3:47 PM
> To: linux-usb@vger.kernel.org; linux-ker...@vger.kernel.org
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu; Badola Nikhil-
> B46172
> Subject: [PATCH 1/3][v2] drivers:usb:fsl: Replace macros with enumerated
> type
> 
> Replace macros with enumerated type to represent usb ip controller version
> 
> Signed-off-by: Nikhil Badola <nikhil.bad...@freescale.com>
> ---
> Changes for v2 :
>       - Assigned value to each enumerator
>       - Changed return type of function that returns
>         controller version
>       - Introduced FSL_USB_VER_NONE for invalid controller version
> 
>  drivers/usb/host/fsl-mph-dr-of.c |  8 ++++----
>  include/linux/fsl_devices.h      | 16 ++++++++++------
>  2 files changed, 14 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-
> of.c
> index 5e0d600..2195956 100644
> --- a/drivers/usb/host/fsl-mph-dr-of.c
> +++ b/drivers/usb/host/fsl-mph-dr-of.c
> @@ -119,9 +119,9 @@ error:
> 
>  static const struct of_device_id fsl_usb2_mph_dr_of_match[];
> 
> -static int usb_get_ver_info(struct device_node *np)
> +static enum fsl_usb2_controller_ver usb_get_ver_info(struct device_node
> +*np)
>  {
> -     int ver = -1;
> +     enum fsl_usb2_controller_ver ver = FSL_USB_VER_NONE;
> 
>       /*
>        * returns 1 for usb controller version 1.6 @@ -142,7 +142,7 @@ static
> int usb_get_ver_info(struct device_node *np)
>               else /* for previous controller versions */
>                       ver = FSL_USB_VER_OLD;
> 
> -             if (ver > -1)
> +             if (ver > FSL_USB_VER_NONE)
>                       return ver;
>       }
> 
> @@ -215,7 +215,7 @@ static int fsl_usb2_mph_dr_of_probe(struct
> platform_device *ofdev)
>       pdata->controller_ver = usb_get_ver_info(np);
> 
>       if (pdata->have_sysif_regs) {
> -             if (pdata->controller_ver < 0) {
> +             if (pdata->controller_ver == FSL_USB_VER_NONE) {
>                       dev_warn(&ofdev->dev, "Could not get controller
> version\n");
>                       return -ENODEV;
>               }
> diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index
> 2a2f56b..0d4855cd 100644
> --- a/include/linux/fsl_devices.h
> +++ b/include/linux/fsl_devices.h
> @@ -20,11 +20,6 @@
>  #define FSL_UTMI_PHY_DLY     10      /*As per P1010RM, delay for UTMI
>                               PHY CLK to become stable - 10ms*/
>  #define FSL_USB_PHY_CLK_TIMEOUT      10000   /* uSec */
> -#define FSL_USB_VER_OLD              0
> -#define FSL_USB_VER_1_6              1
> -#define FSL_USB_VER_2_2              2
> -#define FSL_USB_VER_2_4              3
> -#define FSL_USB_VER_2_5              4
> 
>  #include <linux/types.h>
> 
> @@ -52,6 +47,15 @@
>   *
>   */
> 
> +enum fsl_usb2_controller_ver {
> +     FSL_USB_VER_NONE = -1,
> +     FSL_USB_VER_OLD = 0,
> +     FSL_USB_VER_1_6 = 1,
> +     FSL_USB_VER_2_2 = 2,
> +     FSL_USB_VER_2_4 = 3,
> +     FSL_USB_VER_2_5 = 4,
> +};
> +
>  enum fsl_usb2_operating_modes {
>       FSL_USB2_MPH_HOST,
>       FSL_USB2_DR_HOST,
> @@ -72,7 +76,7 @@ struct platform_device;
> 
>  struct fsl_usb2_platform_data {
>       /* board specific information */
> -     int                             controller_ver;
> +     enum fsl_usb2_controller_ver    controller_ver;
>       enum fsl_usb2_operating_modes   operating_mode;
>       enum fsl_usb2_phy_modes         phy_mode;
>       unsigned int                    port_enables;
> --

Hi Greg/Alan,

Could you please provide comments for this patch and the subsequent
patches in this patch set, if any.

Thanks,
Nikhil 

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