};
#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) {