dfb6db007a
We can communicate the clock rate using platform data rather than setting a flag to use a particular value in the driver, which is cleaner and avoids the dependency. No platform in the kernel currently defines the ep93xx keypad device structure, so this is a rather pointless excercise. Any out of tree users are probably dead now, but if not, they have to change their platform code to match the new platform_data structure. Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Olof Johansson <olof@lixom.net>
33 lines
1 KiB
C
33 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __KEYPAD_EP93XX_H
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#define __KEYPAD_EP93XX_H
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struct matrix_keymap_data;
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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_AUTOREPEAT (1<<4) /* enable key autorepeat */
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/**
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* struct ep93xx_keypad_platform_data - platform specific device structure
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* @keymap_data: pointer to &matrix_keymap_data
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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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struct matrix_keymap_data *keymap_data;
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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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unsigned int clk_rate;
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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 /* __KEYPAD_EP93XX_H */
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