Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / drivers / power / mfd / pmic_max77693.c

diff --git a/qemu/roms/u-boot/drivers/power/mfd/pmic_max77693.c b/qemu/roms/u-boot/drivers/power/mfd/pmic_max77693.c
new file mode 100644 (file)
index 0000000..1a4416b
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/power/mfd/pmic_max77693.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2013 Samsung Electronics
+ * Piotr Wilczek <p.wilczek@samsung.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <power/pmic.h>
+#include <power/max77693_pmic.h>
+#include <i2c.h>
+#include <errno.h>
+
+static int max77693_charger_state(struct pmic *p, int state, int current)
+{
+       unsigned int val;
+
+       if (pmic_probe(p))
+               return -1;
+
+       /* unlock write capability */
+       val = MAX77693_CHG_UNLOCK;
+       pmic_reg_write(p, MAX77693_CHG_CNFG_06, val);
+
+       if (state == CHARGER_DISABLE) {
+               puts("Disable the charger.\n");
+               pmic_reg_read(p, MAX77693_CHG_CNFG_00, &val);
+               val &= ~0x01;
+               pmic_reg_write(p, MAX77693_CHG_CNFG_00, val);
+               return -1;
+       }
+
+       if (current < CHARGER_MIN_CURRENT || current > CHARGER_MAX_CURRENT) {
+               printf("%s: Wrong charge current: %d [mA]\n",
+                      __func__, current);
+               return -1;
+       }
+
+       /* set charging current */
+       pmic_reg_read(p, MAX77693_CHG_CNFG_02, &val);
+       val &= ~MAX77693_CHG_CC;
+       val |= current * 10 / 333;      /* 0.1A/3 steps */
+       pmic_reg_write(p, MAX77693_CHG_CNFG_02, val);
+
+       /* enable charging */
+       val = MAX77693_CHG_MODE_ON;
+       pmic_reg_write(p, MAX77693_CHG_CNFG_00, val);
+
+       /* check charging current */
+       pmic_reg_read(p, MAX77693_CHG_CNFG_02, &val);
+       val &= 0x3f;
+       printf("Enable the charger @ %d [mA]\n", val * 333 / 10);
+
+       return 0;
+}
+
+static int max77693_charger_bat_present(struct pmic *p)
+{
+       unsigned int val;
+
+       if (pmic_probe(p))
+               return -1;
+
+       pmic_reg_read(p, MAX77693_CHG_INT_OK, &val);
+
+       return !(val & MAX77693_CHG_DETBAT);
+}
+
+static struct power_chrg power_chrg_pmic_ops = {
+       .chrg_bat_present = max77693_charger_bat_present,
+       .chrg_state = max77693_charger_state,
+};
+
+int pmic_init_max77693(unsigned char bus)
+{
+       static const char name[] = "MAX77693_PMIC";
+       struct pmic *p = pmic_alloc();
+
+       if (!p) {
+               printf("%s: POWER allocation error!\n", __func__);
+               return -ENOMEM;
+       }
+
+       debug("Board PMIC init\n");
+
+       p->name = name;
+       p->interface = PMIC_I2C;
+       p->number_of_regs = PMIC_NUM_OF_REGS;
+       p->hw.i2c.addr = MAX77693_PMIC_I2C_ADDR;
+       p->hw.i2c.tx_num = 1;
+       p->bus = bus;
+
+       p->chrg = &power_chrg_pmic_ops;
+
+       return 0;
+}