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Diffstat (limited to 'include/linux/pxa2xx_ssp.h')
-rw-r--r--include/linux/pxa2xx_ssp.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h
index f36632061c66..467cc6307b62 100644
--- a/include/linux/pxa2xx_ssp.h
+++ b/include/linux/pxa2xx_ssp.h
@@ -155,6 +155,14 @@
#define SSACD_ACDS(x) ((x) << 0) /* Audio clock divider select */
#define SSACD_SCDX8 (1 << 7) /* SYSCLK division ratio select */
+/* LPSS SSP */
+#define SSITF 0x44 /* TX FIFO trigger level */
+#define SSITF_TxLoThresh(x) (((x) - 1) << 8)
+#define SSITF_TxHiThresh(x) ((x) - 1)
+
+#define SSIRF 0x48 /* RX FIFO trigger level */
+#define SSIRF_RxThresh(x) ((x) - 1)
+
enum pxa_ssp_type {
SSP_UNDEFINED = 0,
PXA25x_SSP, /* pxa 210, 250, 255, 26x */
@@ -164,6 +172,7 @@ enum pxa_ssp_type {
PXA168_SSP,
PXA910_SSP,
CE4100_SSP,
+ LPSS_SSP,
};
struct ssp_device {
@@ -206,6 +215,15 @@ static inline u32 pxa_ssp_read_reg(struct ssp_device *dev, u32 reg)
return __raw_readl(dev->mmio_base + reg);
}
+#ifdef CONFIG_ARCH_PXA
struct ssp_device *pxa_ssp_request(int port, const char *label);
void pxa_ssp_free(struct ssp_device *);
+#else
+static inline struct ssp_device *pxa_ssp_request(int port, const char *label)
+{
+ return NULL;
+}
+static inline void pxa_ssp_free(struct ssp_device *ssp) {}
+#endif
+
#endif