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powerpc/QE: prepare QE PIO code for GPIO LIB support

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- split and export __par_io_config_pin() out of par_io_config_pin(), so we
  could use the prefixed version with GPIO LIB API;
- rename struct port_regs to qe_pio_regs, and place it into qe.h;
- rename #define NUM_OF_PINS to QE_PIO_PINS, and place it into qe.h.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Anton Vorontsov
2008-05-23 20:38:58 +04:00
committed by Kumar Gala
parent 5e41486c40
commit 9572653ee0
2 changed files with 91 additions and 76 deletions
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19
include/asm-powerpc/qe.h
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@@ -84,8 +84,27 @@ extern spinlock_t cmxgcr_lock;
/* Export QE common operations */
extern void qe_reset(void);
/* QE PIO */
#define QE_PIO_PINS 32
struct qe_pio_regs {
__be32 cpodr; /* Open drain register */
__be32 cpdata; /* Data register */
__be32 cpdir1; /* Direction register */
__be32 cpdir2; /* Direction register */
__be32 cppar1; /* Pin assignment register */
__be32 cppar2; /* Pin assignment register */
#ifdef CONFIG_PPC_85xx
u8 pad[8];
#endif
};
extern int par_io_init(struct device_node *np);
extern int par_io_of_config(struct device_node *np);
extern void __par_io_config_pin(struct qe_pio_regs __iomem *par_io, u8 pin,
int dir, int open_drain, int assignment,
int has_irq);
extern int par_io_config_pin(u8 port, u8 pin, int dir, int open_drain,
int assignment, int has_irq);
extern int par_io_data_set(u8 port, u8 pin, u8 val);