60214f058f
This driver was merged before the ep93xx core support was added
for the keypad clock and acquiring/releasing the necessary gpio's.
Now that the proper support is in the ep93xx core this driver
needs to be updated to work correctly.
Summary of changes:
1) Remove some unused members from the platform data.
2) Remove the custom KEY macro and use the ones available in
<linux/input/matrix_keypad.h>
3) Remove the keypad_{readl/writel} macros and just use
__raw_{readl/writel} directly.
4) Update the clk_set_rate() call to work with the core support.
5) Cleanup the probe routine and remove some unneeded messages.
6) Use the ep93xx core functions to acquire and release the gpio's.
7) Fix the clk_get() call to get the keypad clock.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/*
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* arch/arm/mach-ep93xx/include/mach/ep93xx_keypad.h
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*/
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#ifndef __ASM_ARCH_EP93XX_KEYPAD_H
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#define __ASM_ARCH_EP93XX_KEYPAD_H
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/* flags for the ep93xx_keypad driver */
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#define EP93XX_KEYPAD_DISABLE_3_KEY (1<<0) /* disable 3-key reset */
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#define EP93XX_KEYPAD_DIAG_MODE (1<<1) /* diagnostic mode */
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#define EP93XX_KEYPAD_BACK_DRIVE (1<<2) /* back driving mode */
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#define EP93XX_KEYPAD_TEST_MODE (1<<3) /* scan only column 0 */
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#define EP93XX_KEYPAD_KDIV (1<<4) /* 1/4 clock or 1/16 clock */
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#define EP93XX_KEYPAD_AUTOREPEAT (1<<5) /* enable key autorepeat */
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/**
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* struct ep93xx_keypad_platform_data - platform specific device structure
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* @matrix_key_map: array of keycodes defining the keypad matrix
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* @matrix_key_map_size: ARRAY_SIZE(matrix_key_map)
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* @debounce: debounce start count; terminal count is 0xff
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* @prescale: row/column counter pre-scaler load value
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* @flags: see above
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*/
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struct ep93xx_keypad_platform_data {
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unsigned int *matrix_key_map;
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int matrix_key_map_size;
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unsigned int debounce;
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unsigned int prescale;
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unsigned int flags;
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};
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#define EP93XX_MATRIX_ROWS (8)
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#define EP93XX_MATRIX_COLS (8)
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#endif /* __ASM_ARCH_EP93XX_KEYPAD_H */
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