pmic🔋 Support for Trats Battery at PMIC framework

Trats battery is now treated in the same way as other power related
devices. This approach allows for more unified handling of all devices
responsible for power management.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Stefano Babic <sbabic@denx.de>

Makefile

@@ -294,7 +294,8 @@ LIBS-y += drivers/net/phy/libphy.o
 LIBS-y += drivers/pci/libpci.o
 LIBS-y += drivers/pcmcia/libpcmcia.o
 LIBS-y += drivers/power/libpower.o \
-	drivers/power/pmic/libpmic.o
+	drivers/power/pmic/libpmic.o \
+	drivers/power/battery/libbattery.o
 LIBS-y += drivers/spi/libspi.o
 LIBS-y += drivers/dfu/libdfu.o
 ifeq ($(CPU),mpc83xx)

drivers/power/battery/Makefile

@@ -0,0 +1,47 @@
+#
+# Copyright (C) 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	:= $(obj)libbattery.o
+
+COBJS-$(CONFIG_POWER_BATTERY_TRATS) += bat_trats.o
+
+COBJS	:= $(COBJS-y)
+SRCS	:= $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+
+all:	$(LIB)
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+########################################################################

drivers/power/battery/bat_trats.c

@@ -0,0 +1,100 @@
+/*
+ *  Copyright (C) 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
+ */
+
+#include <common.h>
+#include <power/pmic.h>
+#include <power/battery.h>
+#include <power/max8997_pmic.h>
+#include <errno.h>
+
+static struct battery battery_trats;
+
+static int power_battery_charge(struct pmic *bat)
+{
+	struct power_battery *p_bat = bat->pbat;
+	struct battery *battery = p_bat->bat;
+	int k;
+
+	if (bat->chrg->chrg_state(p_bat->chrg, CHARGER_ENABLE, 450))
+		return -1;
+
+	for (k = 0; bat->chrg->chrg_bat_present(p_bat->chrg) &&
+		     bat->chrg->chrg_type(p_bat->muic) &&
+		     battery->state_of_chrg < 100; k++) {
+		udelay(10000000);
+		puts(".");
+		bat->fg->fg_battery_update(p_bat->fg, bat);
+
+		if (k == 100) {
+			debug(" %d [V]", battery->voltage_uV);
+			puts("\n");
+			k = 0;
+		}
+
+	}
+
+	bat->chrg->chrg_state(p_bat->chrg, CHARGER_DISABLE, 0);
+
+	return 0;
+}
+
+static int power_battery_init_trats(struct pmic *bat_,
+				    struct pmic *fg_,
+				    struct pmic *chrg_,
+				    struct pmic *muic_)
+{
+	bat_->pbat->fg = fg_;
+	bat_->pbat->chrg = chrg_;
+	bat_->pbat->muic = muic_;
+
+	bat_->fg = fg_->fg;
+	bat_->chrg = chrg_->chrg;
+	bat_->chrg->chrg_type = muic_->chrg->chrg_type;
+	return 0;
+}
+
+static struct power_battery power_bat_trats = {
+	.bat = &battery_trats,
+	.battery_init = power_battery_init_trats,
+	.battery_charge = power_battery_charge,
+};
+
+int power_bat_init(unsigned char bus)
+{
+	static const char name[] = "BAT_TRATS";
+	struct pmic *p = pmic_alloc();
+
+	if (!p) {
+		printf("%s: POWER allocation error!\n", __func__);
+		return -ENOMEM;
+	}
+
+	debug("Board BAT init\n");
+
+	p->interface = PMIC_NONE;
+	p->name = name;
+	p->bus = bus;
+
+	p->pbat = &power_bat_trats;
+	return 0;
+}