From: Rohit S Kenchanpura <rohit.s.kenchanp...@intel.com>
Signed-off-by: Rohit S Kenchanpura <rohit.s.kenchanp...@intel.com>
---
drivers/power/bq25890_charger.c | 71 ++++++++++++++++++++++++++++++++++-
include/linux/power/bq25890_charger.h | 32 ++++++++++++++++
2 files changed, 102 insertions(+), 1 deletion(-)
create mode 100644 include/linux/power/bq25890_charger.h
diff --git a/drivers/power/bq25890_charger.c b/drivers/power/bq25890_charger.c
index f993a55..f194f42 100644
--- a/drivers/power/bq25890_charger.c
+++ b/drivers/power/bq25890_charger.c
@@ -24,6 +24,7 @@
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/usb/phy.h>
+#include <linux/power/bq25890_charger.h>
#include <linux/acpi.h>
#include <linux/of.h>
@@ -32,6 +33,35 @@
#define BQ25890_IRQ_PIN "bq25890_irq"
#define BQ25890_ID 3
+#define BQ25892_ID 0
+
+/* pmic charger info */
+
+#define PMIC_CHG_DEF_CC 2600000 /* in uA */
+#define PMIC_CHG_DEF_IPRECHG 256000 /* in uA */
+#define PMIC_CHG_DEF_ITERM 128000 /* in uA */
+#define PMIC_CHG_DEF_CV 4350000 /* in uV */
+#define PMIC_CHG_DEF_VSYSMIN 3500000 /* in uV */
+#define PMIC_CHG_DEF_BOOSTV 4700000 /* in uV */
+#define PMIC_CHG_DEF_BOOSTI 500000 /* in uA */
+#define PMIC_CHG_MAX_CC 2600000 /* in uA */
+#define PMIC_CHG_MAX_CV 4350000 /* in uV */
+#define PMIC_CHG_MAX_TEMP 100 /* in DegC */
+#define PMIC_CHG_MIN_TEMP 0 /* in DegC */
+
+static struct bq25890_platform_data charger_drvdata = {
+ .def_cc = PMIC_CHG_DEF_CC,
+ .def_cv = PMIC_CHG_DEF_CV,
+ .iterm = PMIC_CHG_DEF_ITERM,
+ .iprechg = PMIC_CHG_DEF_IPRECHG,
+ .sysvmin = PMIC_CHG_DEF_VSYSMIN,
+ .boostv = PMIC_CHG_DEF_BOOSTV,
+ .boosti = PMIC_CHG_DEF_BOOSTI,
+ .max_cc = PMIC_CHG_MAX_CC,
+ .max_cv = PMIC_CHG_MAX_CV,
+ .min_temp = PMIC_CHG_MIN_TEMP,
+ .max_temp = PMIC_CHG_MAX_TEMP,
+};
enum bq25890_fields {
F_EN_HIZ, F_EN_ILIM, F_IILIM, /* Reg00 */
@@ -88,6 +118,7 @@ struct bq25890_state {
struct bq25890_device {
struct i2c_client *client;
+ struct bq25890_platform_data *pdata;
struct device *dev;
struct power_supply *charger;
@@ -104,6 +135,11 @@ struct bq25890_device {
struct bq25890_state state;
struct mutex lock; /* protect state data */
+
+ int cc;
+ int cv;
+ int inlmt;
+ int chg_cntl_max;
};
static const struct regmap_range bq25890_readonly_reg_ranges[] = {
@@ -732,6 +768,7 @@ static int bq25890_irq_probe(struct bq25890_device *bq)
return gpiod_to_irq(irq);
}
+#ifdef CONFIG_OF
static int bq25890_fw_read_u32_props(struct bq25890_device *bq)
{
int ret;
@@ -791,6 +828,37 @@ static int bq25890_fw_probe(struct bq25890_device *bq)
return 0;
}
+#else
+static int bq25890_fw_probe(struct bq25890_device *bq)
+{
+ struct bq25890_init_data *init = &bq->init_data;
+
+ /* initialize the BXT platform data */
+ init->ichg = bq25890_find_idx(bq->pdata->def_cc, TBL_ICHG);
+ init->vreg = bq25890_find_idx(bq->pdata->def_cv, TBL_VREG);
+ init->iterm = bq25890_find_idx(bq->pdata->iterm, TBL_ITERM);
+ init->iprechg = bq25890_find_idx(bq->pdata->iprechg, TBL_IPRECHG);
+ init->sysvmin = bq25890_find_idx(bq->pdata->sysvmin, TBL_SYSVMIN);
+ init->boostv = bq25890_find_idx(bq->pdata->boostv, TBL_BOOSTV);
+ init->boosti = bq25890_find_idx(bq->pdata->boosti, TBL_BOOSTI);
+ init->treg = bq25890_find_idx(bq->pdata->max_temp, TBL_TREG);
+ init->boostf = bq->pdata->boostf_low;
+ init->ilim_en = bq->pdata->en_ilim_pin;
+
+ bq->cc = bq->pdata->def_cc;
+ bq->cv = bq->pdata->def_cv;
+
+ /*
+ * devide the limit into 100mA steps so that
+ * total available steps will n + 2 including
+ * zero and High-Z mode.
+ */
+ bq->chg_cntl_max = (bq->pdata->def_cc / 100000) + 2;
+
+ return 0;
+}
+#endif
+
static int bq25890_probe(struct i2c_client *client,
const struct i2c_device_id *id)
@@ -840,12 +908,13 @@ static int bq25890_probe(struct i2c_client *client,
return bq->chip_id;
}
- if (bq->chip_id != BQ25890_ID) {
+ if ((bq->chip_id != BQ25890_ID) && (bq->chip_id != BQ25892_ID)) {
dev_err(dev, "Chip with ID=%d, not supported!\n", bq->chip_id);
return -ENODEV;
}
if (!dev->platform_data) {
+ bq->pdata = &charger_drvdata;
ret = bq25890_fw_probe(bq);
if (ret < 0) {
dev_err(dev, "Cannot read device properties.\n");
diff --git a/include/linux/power/bq25890_charger.h
b/include/linux/power/bq25890_charger.h
new file mode 100644
index 0000000..6caf198
--- /dev/null
+++ b/include/linux/power/bq25890_charger.h
@@ -0,0 +1,32 @@
+/*
+ * bq25890_charger.h: platform data structure for bq25890 driver
+ *
+ * (C) Copyright 2015 Intel Corporation
+ *
+ * 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; version 2
+ * of the License.
+ */
+
+#ifndef __BQ25890_CHARGER_H__
+#define __BQ25890_CHARGER_H__
+
+struct bq25890_platform_data {
+ int def_cc; /* in uA */
+ int def_cv; /* in uV */
+ int iterm; /* in uA */
+ int iprechg; /* in uA */
+ int sysvmin; /* in uA */
+ int boosti; /* in uA */
+ int boostv; /* in uV */
+ int max_cv; /* in uV */
+ int max_cc; /* in uA */
+ int min_temp; /* in DegC */
+ int max_temp; /* in DegC */
+ bool boostf_low;
+ bool en_thermal_reg;
+ bool en_ilim_pin;
+};
+
+#endif
--
1.9.1
--
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