mfd: Add mc13892 support to mc13xxx

mc13892 is the companion PMIC for Freescale's i.MX51.  It's similar enough
to mc13782 to support it in a single driver.

This patch introduces enough compatibility cruft to keep all users of the
superseded mc13783 driver unchanged.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

include/linux/mfd/mc13xxx.h

@@ -0,0 +1,154 @@
+/*
+ * Copyright 2009-2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+#ifndef __LINUX_MFD_MC13XXX_H
+#define __LINUX_MFD_MC13XXX_H
+
+#include <linux/interrupt.h>
+
+struct mc13xxx;
+
+void mc13xxx_lock(struct mc13xxx *mc13xxx);
+void mc13xxx_unlock(struct mc13xxx *mc13xxx);
+
+int mc13xxx_reg_read(struct mc13xxx *mc13xxx, unsigned int offset, u32 *val);
+int mc13xxx_reg_write(struct mc13xxx *mc13xxx, unsigned int offset, u32 val);
+int mc13xxx_reg_rmw(struct mc13xxx *mc13xxx, unsigned int offset,
+		u32 mask, u32 val);
+
+int mc13xxx_get_flags(struct mc13xxx *mc13xxx);
+
+int mc13xxx_irq_request(struct mc13xxx *mc13xxx, int irq,
+		irq_handler_t handler, const char *name, void *dev);
+int mc13xxx_irq_request_nounmask(struct mc13xxx *mc13xxx, int irq,
+		irq_handler_t handler, const char *name, void *dev);
+int mc13xxx_irq_free(struct mc13xxx *mc13xxx, int irq, void *dev);
+
+int mc13xxx_irq_mask(struct mc13xxx *mc13xxx, int irq);
+int mc13xxx_irq_unmask(struct mc13xxx *mc13xxx, int irq);
+int mc13xxx_irq_status(struct mc13xxx *mc13xxx, int irq,
+		int *enabled, int *pending);
+int mc13xxx_irq_ack(struct mc13xxx *mc13xxx, int irq);
+
+int mc13xxx_get_flags(struct mc13xxx *mc13xxx);
+
+#define MC13XXX_IRQ_ADCDONE	0
+#define MC13XXX_IRQ_ADCBISDONE	1
+#define MC13XXX_IRQ_TS		2
+#define MC13XXX_IRQ_CHGDET	6
+#define MC13XXX_IRQ_CHGREV	8
+#define MC13XXX_IRQ_CHGSHORT	9
+#define MC13XXX_IRQ_CCCV	10
+#define MC13XXX_IRQ_CHGCURR	11
+#define MC13XXX_IRQ_BPON	12
+#define MC13XXX_IRQ_LOBATL	13
+#define MC13XXX_IRQ_LOBATH	14
+#define MC13XXX_IRQ_1HZ		24
+#define MC13XXX_IRQ_TODA	25
+#define MC13XXX_IRQ_SYSRST	30
+#define MC13XXX_IRQ_RTCRST	31
+#define MC13XXX_IRQ_PC		32
+#define MC13XXX_IRQ_WARM	33
+#define MC13XXX_IRQ_MEMHLD	34
+#define MC13XXX_IRQ_THWARNL	36
+#define MC13XXX_IRQ_THWARNH	37
+#define MC13XXX_IRQ_CLK		38
+
+#define MC13XXX_NUM_IRQ		46
+
+struct regulator_init_data;
+
+struct mc13xxx_regulator_init_data {
+	int id;
+	struct regulator_init_data *init_data;
+};
+
+struct mc13xxx_regulator_platform_data {
+	int num_regulators;
+	struct mc13xxx_regulator_init_data *regulators;
+};
+
+struct mc13xxx_led_platform_data {
+#define MC13783_LED_MD		0
+#define MC13783_LED_AD		1
+#define MC13783_LED_KP		2
+#define MC13783_LED_R1		3
+#define MC13783_LED_G1		4
+#define MC13783_LED_B1		5
+#define MC13783_LED_R2		6
+#define MC13783_LED_G2		7
+#define MC13783_LED_B2		8
+#define MC13783_LED_R3		9
+#define MC13783_LED_G3		10
+#define MC13783_LED_B3		11
+#define MC13783_LED_MAX MC13783_LED_B3
+	int id;
+	const char *name;
+	const char *default_trigger;
+
+/* Three or two bits current selection depending on the led */
+	char max_current;
+};
+
+struct mc13xxx_leds_platform_data {
+	int num_leds;
+	struct mc13xxx_led_platform_data *led;
+
+#define MC13783_LED_TRIODE_MD	(1 << 0)
+#define MC13783_LED_TRIODE_AD	(1 << 1)
+#define MC13783_LED_TRIODE_KP	(1 << 2)
+#define MC13783_LED_BOOST_EN	(1 << 3)
+#define MC13783_LED_TC1HALF	(1 << 4)
+#define MC13783_LED_SLEWLIMTC	(1 << 5)
+#define MC13783_LED_SLEWLIMBL	(1 << 6)
+#define MC13783_LED_TRIODE_TC1	(1 << 7)
+#define MC13783_LED_TRIODE_TC2	(1 << 8)
+#define MC13783_LED_TRIODE_TC3	(1 << 9)
+	int flags;
+
+#define MC13783_LED_AB_DISABLED		0
+#define MC13783_LED_AB_MD1		1
+#define MC13783_LED_AB_MD12		2
+#define MC13783_LED_AB_MD123		3
+#define MC13783_LED_AB_MD1234		4
+#define MC13783_LED_AB_MD1234_AD1	5
+#define MC13783_LED_AB_MD1234_AD12	6
+#define MC13783_LED_AB_MD1_AD		7
+	char abmode;
+
+#define MC13783_LED_ABREF_200MV	0
+#define MC13783_LED_ABREF_400MV	1
+#define MC13783_LED_ABREF_600MV	2
+#define MC13783_LED_ABREF_800MV	3
+	char abref;
+
+#define MC13783_LED_PERIOD_10MS		0
+#define MC13783_LED_PERIOD_100MS	1
+#define MC13783_LED_PERIOD_500MS	2
+#define MC13783_LED_PERIOD_2S		3
+	char bl_period;
+	char tc1_period;
+	char tc2_period;
+	char tc3_period;
+};
+
+struct mc13xxx_platform_data {
+#define MC13XXX_USE_TOUCHSCREEN (1 << 0)
+#define MC13XXX_USE_CODEC	(1 << 1)
+#define MC13XXX_USE_ADC		(1 << 2)
+#define MC13XXX_USE_RTC		(1 << 3)
+#define MC13XXX_USE_REGULATOR	(1 << 4)
+#define MC13XXX_USE_LED		(1 << 5)
+	unsigned int flags;
+
+	int num_regulators;
+	struct mc13xxx_regulator_init_data *regulators;
+	struct mc13xxx_leds_platform_data *leds;
+};
+
+#endif /* ifndef __LINUX_MFD_MC13XXX_H */