diff options
Diffstat (limited to 'arch/arm/include/asm/arch-mxs/regs-ssp.h')
| -rw-r--r-- | arch/arm/include/asm/arch-mxs/regs-ssp.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mxs/regs-ssp.h b/arch/arm/include/asm/arch-mxs/regs-ssp.h index 9b30f56f54..5920f9b4dc 100644 --- a/arch/arm/include/asm/arch-mxs/regs-ssp.h +++ b/arch/arm/include/asm/arch-mxs/regs-ssp.h @@ -74,6 +74,32 @@ struct mxs_ssp_regs { }; #endif +static inline int mxs_ssp_bus_id_valid(int bus) +{ +#if defined(CONFIG_MX23) + const unsigned int mxs_ssp_chan_count = 2; +#elif defined(CONFIG_MX28) + const unsigned int mxs_ssp_chan_count = 4; +#endif + + if (bus >= mxs_ssp_chan_count) + return 0; + + if (bus < 0) + return 0; + + return 1; +} + +static inline int mxs_ssp_clock_by_bus(unsigned int clock) +{ +#if defined(CONFIG_MX23) + return 0; +#elif defined(CONFIG_MX28) + return clock; +#endif +} + static inline struct mxs_ssp_regs *mxs_ssp_regs_by_bus(unsigned int port) { switch (port) { |