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934cd3f979
Apparently these might be called under atomic context, and i2c operations may sleep. BUG found by Ross Burton <ross@burtonini.com> Signed-off-by: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
47 lines
1,020 B
C
47 lines
1,020 B
C
/*
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* pca9532.h - platform data structure for pca9532 led controller
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*
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* Copyright (C) 2008 Riku Voipio <riku.voipio@movial.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* Datasheet: http://www.nxp.com/acrobat/datasheets/PCA9532_3.pdf
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*
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*/
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#ifndef __LINUX_PCA9532_H
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#define __LINUX_PCA9532_H
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#include <linux/leds.h>
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#include <linux/workqueue.h>
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enum pca9532_state {
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PCA9532_OFF = 0x0,
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PCA9532_ON = 0x1,
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PCA9532_PWM0 = 0x2,
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PCA9532_PWM1 = 0x3
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};
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enum pca9532_type { PCA9532_TYPE_NONE, PCA9532_TYPE_LED,
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PCA9532_TYPE_N2100_BEEP };
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struct pca9532_led {
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u8 id;
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struct i2c_client *client;
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char *name;
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struct led_classdev ldev;
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struct work_struct work;
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enum pca9532_type type;
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enum pca9532_state state;
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};
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struct pca9532_platform_data {
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struct pca9532_led leds[16];
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u8 pwm[2];
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u8 psc[2];
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};
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#endif /* __LINUX_PCA9532_H */
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