Hi Afzal,
On Mon, Jan 07, 2013 at 06:10:13AM +0000, Mohammed, Afzal wrote:
> Hi Steffen,
>
> On Tue, Dec 18, 2012 at 22:34:14, Steffen Trumtrar wrote:
> > Add helper to get fb_videomode from devicetree.
>
> > drivers/video/fbmon.c | 42 ++++++++++++++++++++++++++++++++++++++++++
> > include/linux/fb.h | 4 ++++
>
> This breaks DaVinci (da8xx_omapl_defconfig), following change was
> required to get it build if OF_VIDEOMODE or/and FB_MODE_HELPERS
> is not defined. There may be better solutions, following was the
> one that was used by me to test this series.
>
> ---8<----------
>
> diff --git a/include/linux/fb.h b/include/linux/fb.h
> index 58b9860..0ce30d1 100644
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
> @@ -716,9 +716,19 @@ extern void fb_destroy_modedb(struct fb_videomode
> *modedb);
> extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
> extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
>
> +#if defined(CONFIG_OF_VIDEOMODE) && defined(CONFIG_FB_MODE_HELPERS)
> extern int of_get_fb_videomode(struct device_node *np,
> struct fb_videomode *fb,
> int index);
> +#else
> +static inline int of_get_fb_videomode(struct device_node *np,
> + struct fb_videomode *fb,
> + int index)
> +{
> + return -EINVAL;
> +}
> +#endif
> +
> extern int fb_videomode_from_videomode(const struct videomode *vm,
> struct fb_videomode *fbmode);
>
> ---8<----------
>
I just did a quick "make da8xx_omapl_defconfig && make" and it builds just fine.
On what version did you apply the series?
At the moment I have the series sitting on 3.7. Didn't try any 3.8-rcx yet.
But fixing this shouldn't be a problem.
>
> > +#if IS_ENABLED(CONFIG_OF_VIDEOMODE)
>
> As _OF_VIDEOMODE is a bool type CONFIG, isn't,
>
> #ifdef CONFIG_OF_VIDEOMODE
>
> sufficient ?
>
Yes, that is right. But I think IS_ENABLED is the preferred way to do it, isn't
it?
Regards,
Steffen
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