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SubjectRe: [PATCH, RFC 06/22] gpu/drm: host1x: add dependency on Tegra
Date
On Friday 03 May 2013 15:45:39 Thierry Reding wrote:
> > diff --git a/drivers/gpu/host1x/drm/Kconfig b/drivers/gpu/host1x/drm/Kconfig
> > index 69853a4..5a6a5cd 100644
> > --- a/drivers/gpu/host1x/drm/Kconfig
> > +++ b/drivers/gpu/host1x/drm/Kconfig
> > @@ -1,6 +1,7 @@
> > config DRM_TEGRA
> > bool "NVIDIA Tegra DRM"
> > depends on DRM
> > + depends on ARCH_TEGRA
> > select DRM_KMS_HELPER
> > select FB_SYS_FILLRECT
> > select FB_SYS_COPYAREA
>
> This was solved by a patch that went into Dave's DRM pull request for
> 3.10 by adding:
>
> depends on ARCH_TEGRA || ARCH_MULTIPLATFORM
>
> to the Kconfig entry for TEGRA_HOST1X. The plan was to eventually remove
> ARCH_TEGRA from that condition after 3.10 since ARCH_MULTIPLATFORM will
> include ARCH_TEGRA anyway. I'm not sure why that patch hasn't made it
> into linux-next yet, though.

I saw the problem with ARCH_MULTIPLATFORM enabled, so I don't understand
how adding the dependency above would help. A possible alternative
would be to define an empty alternative for the interface used here,
as the patch below.

Arnd

diff --git a/include/linux/clk/tegra.h b/include/linux/clk/tegra.h
index 642789b..1397190 100644
--- a/include/linux/clk/tegra.h
+++ b/include/linux/clk/tegra.h
@@ -120,8 +120,13 @@ static inline void tegra_cpu_clock_resume(void)
}
#endif

+#ifdef ARCH_TEGRA
void tegra_periph_reset_deassert(struct clk *c);
void tegra_periph_reset_assert(struct clk *c);
+#else
+static inline void tegra_periph_reset_deassert(struct clk *c) {}
+static inline void tegra_periph_reset_assert(struct clk *c) {}
+#endif
void tegra_clocks_init(void);
void tegra_clocks_apply_init_table(void);



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