[PATCH] mxc: Fix pad names for imx51

[s.hauer@pengutronix.de (Sascha Hauer)]

On Mon, Jun 07, 2010 at 02:15:47PM -0700, Troy Kisky wrote:
> Amit Kucheria wrote:
> > On 10 Jun 07, Troy Kisky wrote:
> > 
> >>> On 10 Jun 04, Amit Kucheria wrote:
> >>>
> > 
> > <snip>
> > 
> >>> +#define MX51_PAD_CSPI1_SCLK__GPIO_4_27		IOMUX_PAD(0x614, 0x224,  3, 0x0,   0, NO_PAD_CTRL)
> > 
> > <snip>
> > 
> >>> +#define MX51_PAD_GPIO_1_2__GPIO_1_2		IOMUX_PAD(0x7D4, 0x3CC, 0, 0x0,   0, NO_PAD_CTRL)
> >>> +#define MX51_PAD_GPIO_1_3__GPIO_1_3		IOMUX_PAD(0x7D8, 0x3D0, 0, 0x0,   0, NO_PAD_CTRL)
> >>> +#define MX51_PAD_PMIC_INT_REQ__PMIC_INT_REQ	IOMUX_PAD(0x7FC, 0x3D4, 0, 0x0,   0, NO_PAD_CTRL)
> >>> +#define MX51_PAD_GPIO_1_4__GPIO_1_4		IOMUX_PAD(0x804, 0x3D8, 0, 0x0,   0, NO_PAD_CTRL)
> >>> +#define MX51_PAD_GPIO_1_5__GPIO_1_5		IOMUX_PAD(0x808, 0x3DC, 0, 0x0,   0, NO_PAD_CTRL)
> >>> +#define MX51_PAD_GPIO_1_6__GPIO_1_6		IOMUX_PAD(0x80C, 0x3E0, 0, 0x0,   0, NO_PAD_CTRL)
> >>> +#define MX51_PAD_GPIO_1_7__GPIO_1_7		IOMUX_PAD(0x810, 0x3E4, 0, 0x0,   0, MX51_GPIO_PAD_CTRL)
> >>> +#define MX51_PAD_GPIO_1_8__GPIO_1_8		IOMUX_PAD(0x814, 0x3E8, 0, 0x0,   1, MX51_GPIO_PAD_CTRL)
> >>> +#define MX51_PAD_GPIO_1_9__GPIO_1_9		IOMUX_PAD(0x818, 0x3EC, 0, 0x0,   0, NO_PAD_CTRL)
> >> Why all the stuttering?
> >> Isn't MX51_PAD_GPIO_1_9 or MX51_PAD_DISP2_DAT15 descriptive enough?
> >>
> > 
> > Just following the convention use in the rest of imx devices. See the
> > following comment at the top of the file:
> > 
> > /*
> >  * The naming convention for the pad modes is MX51_PAD_<padname>__<padmode>
> >  * If <padname> or <padmode> refers to a GPIO, it is named
> >  * GPIO_<unit>_<num> see also iomux-v3.h
> >  */
> > 
> > We could use the short names for pads being used in their "native mode".
> > But as soon as we use the pad in a different mode, such as
> > PAD_CSPI1_SCLK__GPIO_4_27 above, we'd need a different naming convention.
> > 
> > Regards,
> > Amit
> > 
> 
> I'm fine with MX51_PAD_CSPI1_SCLK__GPIO_4_27, but I don't care for
> MX51_PAD_GPIO_1_9__GPIO_1_9. How about changing the comment to
> 
>  /*
>   * The naming convention for the pad modes is MX51_PAD_<padname>
>   * or MX51_PAD_<padname>__<padmode> if padname != padmode.
>   * If <padname> or <padmode> refers to a GPIO, it is named
>   * GPIO_<unit>_<num> see also iomux-v3.h
>   */

If anything then MX51_PAD_GPIO_<unit>_<num>. I chose to use the long
name to get a consistent naming and to express the fact that the pad has
a name and the mode has a name which can but don't has to be the same.

Sascha

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