diff options
| author | Daniel Mack <zonque@gmail.com> | 2013-08-12 12:37:18 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-08-14 22:54:30 +0400 |
| commit | 6446221c14ef3bf58754cf1948631128dbe62700 (patch) | |
| tree | 85b98c217d9528e1a1771f8599875c4814a3b1db /include | |
| parent | 1c459de1e645b213a07b9492884a54f5861409f5 (diff) | |
| download | linux-6446221c14ef3bf58754cf1948631128dbe62700.tar.xz | |
ARM: pxa: ssp: add pxa_ssp_request_of()
Add a function to lookup ssp devices from device tree. This way, users
can reference the ssp devices in order to register to them.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pxa2xx_ssp.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h index 467cc6307b62..49444203328a 100644 --- a/include/linux/pxa2xx_ssp.h +++ b/include/linux/pxa2xx_ssp.h @@ -21,6 +21,8 @@ #include <linux/list.h> #include <linux/io.h> +#include <linux/of.h> + /* * SSP Serial Port Registers @@ -190,6 +192,8 @@ struct ssp_device { int irq; int drcmr_rx; int drcmr_tx; + + struct device_node *of_node; }; /** @@ -218,11 +222,18 @@ static inline u32 pxa_ssp_read_reg(struct ssp_device *dev, u32 reg) #ifdef CONFIG_ARCH_PXA struct ssp_device *pxa_ssp_request(int port, const char *label); void pxa_ssp_free(struct ssp_device *); +struct ssp_device *pxa_ssp_request_of(const struct device_node *of_node, + const char *label); #else static inline struct ssp_device *pxa_ssp_request(int port, const char *label) { return NULL; } +static inline struct ssp_device *pxa_ssp_request_of(const struct device_node *n, + const char *name) +{ + return NULL; +} static inline void pxa_ssp_free(struct ssp_device *ssp) {} #endif |