[ARM] pxa: define "struct ssp_device" and add ssp_request()/ssp_free()
1. define "struct ssp_device" for SSP information, which is requested
and released by function ssp_request()/ssp_free()
2. modify the ssp_init() and ssp_exit() to use the interface
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/arch-pxa/ssp.h b/include/asm-arm/arch-pxa/ssp.h
index ea20055..a012882 100644
--- a/include/asm-arm/arch-pxa/ssp.h
+++ b/include/asm-arm/arch-pxa/ssp.h
@@ -13,10 +13,37 @@
* PXA255 SSP, NSSP
* PXA26x SSP, NSSP, ASSP
* PXA27x SSP1, SSP2, SSP3
+ * PXA3xx SSP1, SSP2, SSP3, SSP4
*/
-#ifndef SSP_H
-#define SSP_H
+#ifndef __ASM_ARCH_SSP_H
+#define __ASM_ARCH_SSP_H
+
+#include <linux/list.h>
+
+enum pxa_ssp_type {
+ SSP_UNDEFINED = 0,
+ PXA25x_SSP, /* pxa 210, 250, 255, 26x */
+ PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */
+ PXA27x_SSP,
+};
+
+struct ssp_device {
+ struct platform_device *pdev;
+ struct list_head node;
+
+ struct clk *clk;
+ void __iomem *mmio_base;
+ unsigned long phys_base;
+
+ const char *label;
+ int port_id;
+ int type;
+ int use_count;
+ int irq;
+ int drcmr_rx;
+ int drcmr_tx;
+};
/*
* SSP initialisation flags
@@ -31,6 +58,7 @@
};
struct ssp_dev {
+ struct ssp_device *ssp;
u32 port;
u32 mode;
u32 flags;
@@ -50,4 +78,6 @@
int ssp_config(struct ssp_dev *dev, u32 mode, u32 flags, u32 psp_flags, u32 speed);
void ssp_exit(struct ssp_dev *dev);
-#endif
+struct ssp_device *ssp_request(int port, const char *label);
+void ssp_free(struct ssp_device *);
+#endif /* __ASM_ARCH_SSP_H */