From 6446221c14ef3bf58754cf1948631128dbe62700 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Mon, 12 Aug 2013 10:37:18 +0200 Subject: 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 Acked-by: Haojian Zhuang Signed-off-by: Mark Brown --- include/linux/pxa2xx_ssp.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux/pxa2xx_ssp.h') 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 #include +#include + /* * 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 -- cgit v1.2.3