pmic: Extend PMIC framework to support multiple instances of PMIC devices

[pandora-u-boot.git] / include / power / pmic.h

diff --git a/include/power/pmic.h b/include/power/pmic.h
new file mode 100644 (file)
index 0000000..e9affc8
--- /dev/null
+++ b/include/power/pmic.h
@@ -0,0 +1,81 @@
+/*
+ *  Copyright (C) 2011-2012 Samsung Electronics
+ *  Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __CORE_PMIC_H_
+#define __CORE_PMIC_H_
+
+#include <common.h>
+#include <linux/list.h>
+#include <i2c.h>
+
+enum { PMIC_I2C, PMIC_SPI, };
+enum { I2C_PMIC, I2C_NUM, };
+enum { PMIC_READ, PMIC_WRITE, };
+enum { PMIC_SENSOR_BYTE_ORDER_LITTLE, PMIC_SENSOR_BYTE_ORDER_BIG, };
+
+struct p_i2c {
+       unsigned char addr;
+       unsigned char *buf;
+       unsigned char tx_num;
+};
+
+struct p_spi {
+       unsigned int cs;
+       unsigned int mode;
+       unsigned int bitlen;
+       unsigned int clk;
+       unsigned int flags;
+       u32 (*prepare_tx)(u32 reg, u32 *val, u32 write);
+};
+
+struct pmic {
+       const char *name;
+       unsigned char bus;
+       unsigned char interface;
+       unsigned char sensor_byte_order;
+       unsigned int number_of_regs;
+       union hw {
+               struct p_i2c i2c;
+               struct p_spi spi;
+       } hw;
+
+       struct list_head list;
+};
+
+int pmic_init(unsigned char bus);
+int pmic_dialog_init(unsigned char bus);
+int check_reg(struct pmic *p, u32 reg);
+struct pmic *pmic_alloc(void);
+struct pmic *pmic_get(const char *s);
+int pmic_probe(struct pmic *p);
+int pmic_reg_read(struct pmic *p, u32 reg, u32 *val);
+int pmic_reg_write(struct pmic *p, u32 reg, u32 val);
+int pmic_set_output(struct pmic *p, u32 reg, int ldo, int on);
+
+#define pmic_i2c_addr (p->hw.i2c.addr)
+#define pmic_i2c_tx_num (p->hw.i2c.tx_num)
+
+#define pmic_spi_bitlen (p->hw.spi.bitlen)
+#define pmic_spi_flags (p->hw.spi.flags)
+
+#endif /* __CORE_PMIC_H_ */