diff options
Diffstat (limited to 'include/linux/pxa2xx_ssp.h')
| -rw-r--r-- | include/linux/pxa2xx_ssp.h | 18 |
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 |