Re: [alsa-devel] [PATCH 4/4] ASoC: fsl: make fsl_ssi driver compilable on ARM/IMX

Sergei Shtylyov wrote:

These functions are not equivalent concerning endianness. You should 

probably have used readl_be() instead, else it won't work on PPC anymore.

readl_be() is not good enough, either. The in/out_be functions have specific syncronization instructions in them, so that the operations conform to the PowerPC instruction ordering architecture.

You probably need to do something like this:

#ifdef PPC #define read_ssi(x) in_be32(x) #else #if defined ARM #define read_ssi(x) readl(x) #endif