Ramax Lo <[EMAIL PROTECTED]> writes:
> There are chances that a driver may check if other peripherals
> with shared pins are enabled. This patch adds a function for
> returning the status of a given pinmux bit.
>
> Signed-off-by: Ramax Lo <[EMAIL PROTECTED]>
I'm going to hold off on this for now.
I'll be integrating a new pin-mux layer soon, which will be similar to
the OMAP one, and will be extensible when it comes to addings upport
for DM355 and DM6467.
Kevin
> ---
> arch/arm/mach-davinci/mux.c | 17 +++++++++++++++++
> include/asm-arm/arch-davinci/mux.h | 1 +
> 2 files changed, 18 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-davinci/mux.c b/arch/arm/mach-davinci/mux.c
> index af1ed1c..4668c90 100644
> --- a/arch/arm/mach-davinci/mux.c
> +++ b/arch/arm/mach-davinci/mux.c
> @@ -37,3 +37,20 @@ void davinci_mux_peripheral(unsigned int mux, unsigned int
> enable)
> spin_unlock(&mux_lock);
> }
> EXPORT_SYMBOL(davinci_mux_peripheral);
> +
> +int davinci_mux_status(unsigned int mux)
> +{
> + u32 pinmux, muxreg = PINMUX0;
> +
> + if (mux >= DAVINCI_MUX_LEVEL2) {
> + muxreg = PINMUX1;
> + mux -= DAVINCI_MUX_LEVEL2;
> + }
> +
> + spin_lock(&mux_lock);
> + pinmux = davinci_readl(DAVINCI_SYSTEM_MODULE_BASE + muxreg);
> + spin_unlock(&mux_lock);
> +
> + return (pinmux & (1 << mux));
> +}
> +EXPORT_SYMBOL(davinci_mux_status);
> diff --git a/include/asm-arm/arch-davinci/mux.h
> b/include/asm-arm/arch-davinci/mux.h
> index 9e7cf69..951900a 100644
> --- a/include/asm-arm/arch-davinci/mux.h
> +++ b/include/asm-arm/arch-davinci/mux.h
> @@ -56,5 +56,6 @@
> #define DAVINCI_MUX_TIMIN (DAVINCI_MUX_LEVEL2 + 18)
>
> extern void davinci_mux_peripheral(unsigned int mux, unsigned int enable);
> +extern int davinci_mux_status(unsigned int mux);
>
> #endif /* __ASM_ARCH_MUX_H */
> --
> 1.5.2.5
>
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