diff options
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/supply/bq27xxx_battery.c | 175 |
1 files changed, 126 insertions, 49 deletions
diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c index cf0f19e2a639..cf3e8a173bc6 100644 --- a/drivers/power/supply/bq27xxx_battery.c +++ b/drivers/power/supply/bq27xxx_battery.c @@ -58,8 +58,6 @@ #include <linux/power/bq27xxx_battery.h> -#define DRIVER_VERSION "1.2.0" - #define BQ27XXX_MANUFACTURER "Texas Instruments" /* BQ27XXX Flags */ @@ -785,46 +783,138 @@ static enum power_supply_property bq27421_props[] = { #define bq27441_props bq27421_props #define bq27621_props bq27421_props +struct bq27xxx_dm_reg { + u8 subclass_id; + u8 offset; + u8 bytes; + u16 min, max; +}; + +enum bq27xxx_dm_reg_id { + BQ27XXX_DM_DESIGN_CAPACITY = 0, + BQ27XXX_DM_DESIGN_ENERGY, + BQ27XXX_DM_TERMINATE_VOLTAGE, +}; + +#define bq27000_dm_regs 0 +#define bq27010_dm_regs 0 +#define bq2750x_dm_regs 0 +#define bq2751x_dm_regs 0 +#define bq2752x_dm_regs 0 + +#if 0 /* not yet tested */ +static struct bq27xxx_dm_reg bq27500_dm_regs[] = { + [BQ27XXX_DM_DESIGN_CAPACITY] = { 48, 10, 2, 0, 65535 }, + [BQ27XXX_DM_DESIGN_ENERGY] = { }, /* missing on chip */ + [BQ27XXX_DM_TERMINATE_VOLTAGE] = { 80, 48, 2, 1000, 32767 }, +}; +#else +#define bq27500_dm_regs 0 +#endif + +/* todo create data memory definitions from datasheets and test on chips */ +#define bq27510g1_dm_regs 0 +#define bq27510g2_dm_regs 0 +#define bq27510g3_dm_regs 0 +#define bq27520g1_dm_regs 0 +#define bq27520g2_dm_regs 0 +#define bq27520g3_dm_regs 0 +#define bq27520g4_dm_regs 0 +#define bq27530_dm_regs 0 +#define bq27531_dm_regs 0 +#define bq27541_dm_regs 0 +#define bq27542_dm_regs 0 +#define bq27546_dm_regs 0 +#define bq27742_dm_regs 0 + +#if 0 /* not yet tested */ +static struct bq27xxx_dm_reg bq27545_dm_regs[] = { + [BQ27XXX_DM_DESIGN_CAPACITY] = { 48, 23, 2, 0, 32767 }, + [BQ27XXX_DM_DESIGN_ENERGY] = { 48, 25, 2, 0, 32767 }, + [BQ27XXX_DM_TERMINATE_VOLTAGE] = { 80, 67, 2, 2800, 3700 }, +}; +#else +#define bq27545_dm_regs 0 +#endif + +#if 0 /* not yet tested */ +static struct bq27xxx_dm_reg bq27421_dm_regs[] = { + [BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 10, 2, 0, 8000 }, + [BQ27XXX_DM_DESIGN_ENERGY] = { 82, 12, 2, 0, 32767 }, + [BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 16, 2, 2500, 3700 }, +}; +#else +#define bq27421_dm_regs 0 +#endif + +static struct bq27xxx_dm_reg bq27425_dm_regs[] = { + [BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 12, 2, 0, 32767 }, + [BQ27XXX_DM_DESIGN_ENERGY] = { 82, 14, 2, 0, 32767 }, + [BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 18, 2, 2800, 3700 }, +}; + +#if 0 /* not yet tested */ +#define bq27441_dm_regs bq27421_dm_regs +#else +#define bq27441_dm_regs 0 +#endif + +#if 0 /* not yet tested */ +static struct bq27xxx_dm_reg bq27621_dm_regs[] = { + [BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 3, 2, 0, 8000 }, + [BQ27XXX_DM_DESIGN_ENERGY] = { 82, 5, 2, 0, 32767 }, + [BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 9, 2, 2500, 3700 }, +}; +#else +#define bq27621_dm_regs 0 +#endif + #define BQ27XXX_O_ZERO 0x00000001 #define BQ27XXX_O_OTDC 0x00000002 #define BQ27XXX_O_UTOT 0x00000004 +#define BQ27XXX_O_CFGUP 0x00000008 +#define BQ27XXX_O_RAM 0x00000010 -#define BQ27XXX_DATA(ref, opt) { \ +#define BQ27XXX_DATA(ref, key, opt) { \ .opts = (opt), \ + .unseal_key = key, \ .regs = ref##_regs, \ + .dm_regs = ref##_dm_regs, \ .props = ref##_props, \ .props_size = ARRAY_SIZE(ref##_props) } static struct { u32 opts; + u32 unseal_key; u8 *regs; + struct bq27xxx_dm_reg *dm_regs; enum power_supply_property *props; size_t props_size; } bq27xxx_chip_data[] = { - [BQ27000] = BQ27XXX_DATA(bq27000, BQ27XXX_O_ZERO), - [BQ27010] = BQ27XXX_DATA(bq27010, BQ27XXX_O_ZERO), - [BQ2750X] = BQ27XXX_DATA(bq2750x, BQ27XXX_O_OTDC), - [BQ2751X] = BQ27XXX_DATA(bq2751x, BQ27XXX_O_OTDC), - [BQ2752X] = BQ27XXX_DATA(bq2752x, BQ27XXX_O_OTDC), - [BQ27500] = BQ27XXX_DATA(bq27500, BQ27XXX_O_OTDC), - [BQ27510G1] = BQ27XXX_DATA(bq27510g1, BQ27XXX_O_OTDC), - [BQ27510G2] = BQ27XXX_DATA(bq27510g2, BQ27XXX_O_OTDC), - [BQ27510G3] = BQ27XXX_DATA(bq27510g3, BQ27XXX_O_OTDC), - [BQ27520G1] = BQ27XXX_DATA(bq27520g1, BQ27XXX_O_OTDC), - [BQ27520G2] = BQ27XXX_DATA(bq27520g2, BQ27XXX_O_OTDC), - [BQ27520G3] = BQ27XXX_DATA(bq27520g3, BQ27XXX_O_OTDC), - [BQ27520G4] = BQ27XXX_DATA(bq27520g4, BQ27XXX_O_OTDC), - [BQ27530] = BQ27XXX_DATA(bq27530, BQ27XXX_O_UTOT), - [BQ27531] = BQ27XXX_DATA(bq27531, BQ27XXX_O_UTOT), - [BQ27541] = BQ27XXX_DATA(bq27541, BQ27XXX_O_OTDC), - [BQ27542] = BQ27XXX_DATA(bq27542, BQ27XXX_O_OTDC), - [BQ27546] = BQ27XXX_DATA(bq27546, BQ27XXX_O_OTDC), - [BQ27742] = BQ27XXX_DATA(bq27742, BQ27XXX_O_OTDC), - [BQ27545] = BQ27XXX_DATA(bq27545, BQ27XXX_O_OTDC), - [BQ27421] = BQ27XXX_DATA(bq27421, BQ27XXX_O_UTOT), - [BQ27425] = BQ27XXX_DATA(bq27425, BQ27XXX_O_UTOT), - [BQ27441] = BQ27XXX_DATA(bq27441, BQ27XXX_O_UTOT), - [BQ27621] = BQ27XXX_DATA(bq27621, BQ27XXX_O_UTOT), + [BQ27000] = BQ27XXX_DATA(bq27000, 0 , BQ27XXX_O_ZERO), + [BQ27010] = BQ27XXX_DATA(bq27010, 0 , BQ27XXX_O_ZERO), + [BQ2750X] = BQ27XXX_DATA(bq2750x, 0 , BQ27XXX_O_OTDC), + [BQ2751X] = BQ27XXX_DATA(bq2751x, 0 , BQ27XXX_O_OTDC), + [BQ2752X] = BQ27XXX_DATA(bq2752x, 0 , BQ27XXX_O_OTDC), + [BQ27500] = BQ27XXX_DATA(bq27500, 0x04143672, BQ27XXX_O_OTDC), + [BQ27510G1] = BQ27XXX_DATA(bq27510g1, 0 , BQ27XXX_O_OTDC), + [BQ27510G2] = BQ27XXX_DATA(bq27510g2, 0 , BQ27XXX_O_OTDC), + [BQ27510G3] = BQ27XXX_DATA(bq27510g3, 0 , BQ27XXX_O_OTDC), + [BQ27520G1] = BQ27XXX_DATA(bq27520g1, 0 , BQ27XXX_O_OTDC), + [BQ27520G2] = BQ27XXX_DATA(bq27520g2, 0 , BQ27XXX_O_OTDC), + [BQ27520G3] = BQ27XXX_DATA(bq27520g3, 0 , BQ27XXX_O_OTDC), + [BQ27520G4] = BQ27XXX_DATA(bq27520g4, 0 , BQ27XXX_O_OTDC), + [BQ27530] = BQ27XXX_DATA(bq27530, 0 , BQ27XXX_O_UTOT), + [BQ27531] = BQ27XXX_DATA(bq27531, 0 , BQ27XXX_O_UTOT), + [BQ27541] = BQ27XXX_DATA(bq27541, 0 , BQ27XXX_O_OTDC), + [BQ27542] = BQ27XXX_DATA(bq27542, 0 , BQ27XXX_O_OTDC), + [BQ27546] = BQ27XXX_DATA(bq27546, 0 , BQ27XXX_O_OTDC), + [BQ27742] = BQ27XXX_DATA(bq27742, 0 , BQ27XXX_O_OTDC), + [BQ27545] = BQ27XXX_DATA(bq27545, 0x04143672, BQ27XXX_O_OTDC), + [BQ27421] = BQ27XXX_DATA(bq27421, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM), + [BQ27425] = BQ27XXX_DATA(bq27425, 0x04143672, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP), + [BQ27441] = BQ27XXX_DATA(bq27441, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM), + [BQ27621] = BQ27XXX_DATA(bq27621, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM), }; static DEFINE_MUTEX(bq27xxx_list_lock); @@ -834,13 +924,6 @@ static LIST_HEAD(bq27xxx_battery_devices); #define BQ27XXX_DM_SZ 32 -struct bq27xxx_dm_reg { - u8 subclass_id; - u8 offset; - u8 bytes; - u16 min, max; -}; - /** * struct bq27xxx_dm_buf - chip data memory buffer * @class: data memory subclass_id @@ -873,12 +956,6 @@ static inline u16 *bq27xxx_dm_reg_ptr(struct bq27xxx_dm_buf *buf, return NULL; } -enum bq27xxx_dm_reg_id { - BQ27XXX_DM_DESIGN_CAPACITY = 0, - BQ27XXX_DM_DESIGN_ENERGY, - BQ27XXX_DM_TERMINATE_VOLTAGE, -}; - static const char * const bq27xxx_dm_reg_name[] = { [BQ27XXX_DM_DESIGN_CAPACITY] = "design-capacity", [BQ27XXX_DM_DESIGN_ENERGY] = "design-energy", @@ -1121,9 +1198,9 @@ static void bq27xxx_battery_update_dm_block(struct bq27xxx_device_info *di, } #ifdef CONFIG_BATTERY_BQ27XXX_DT_UPDATES_NVM - if (!di->ram_chip && !bq27xxx_dt_to_nvm) { + if (!(di->opts & BQ27XXX_O_RAM) && !bq27xxx_dt_to_nvm) { #else - if (!di->ram_chip) { + if (!(di->opts & BQ27XXX_O_RAM)) { #endif /* devicetree and NVM differ; defer to NVM */ dev_warn(di->dev, "%s has %u; update to %u disallowed " @@ -1159,7 +1236,7 @@ static int bq27xxx_battery_cfgupdate_priv(struct bq27xxx_device_info *di, bool a return ret; } while (!!(ret & BQ27XXX_FLAG_CFGUP) != active && --try); - if (!try) { + if (!try && di->chip != BQ27425) { // 425 has a bug dev_err(di->dev, "timed out waiting for cfgupdate flag %d\n", active); return -EINVAL; } @@ -1191,7 +1268,7 @@ static inline int bq27xxx_battery_soft_reset(struct bq27xxx_device_info *di) static int bq27xxx_battery_write_dm_block(struct bq27xxx_device_info *di, struct bq27xxx_dm_buf *buf) { - bool cfgup = di->chip == BQ27421; /* assume related chips need cfgupdate */ + bool cfgup = di->opts & BQ27XXX_O_CFGUP; int ret; if (!buf->dirty) @@ -1290,7 +1367,7 @@ static void bq27xxx_battery_set_config(struct bq27xxx_device_info *di, bq27xxx_battery_seal(di); - if (updated && di->chip != BQ27421) { /* not a cfgupdate chip, so reset */ + if (updated && !(di->opts & BQ27XXX_O_CFGUP)) { bq27xxx_write(di, BQ27XXX_REG_CTRL, BQ27XXX_RESET, false); BQ27XXX_MSLEEP(300); /* reset time is not documented */ } @@ -1900,8 +1977,10 @@ int bq27xxx_battery_setup(struct bq27xxx_device_info *di) INIT_DELAYED_WORK(&di->work, bq27xxx_battery_poll); mutex_init(&di->lock); - di->regs = bq27xxx_chip_data[di->chip].regs; - di->opts = bq27xxx_chip_data[di->chip].opts; + di->regs = bq27xxx_chip_data[di->chip].regs; + di->unseal_key = bq27xxx_chip_data[di->chip].unseal_key; + di->dm_regs = bq27xxx_chip_data[di->chip].dm_regs; + di->opts = bq27xxx_chip_data[di->chip].opts; psy_desc = devm_kzalloc(di->dev, sizeof(*psy_desc), GFP_KERNEL); if (!psy_desc) @@ -1920,8 +1999,6 @@ int bq27xxx_battery_setup(struct bq27xxx_device_info *di) return PTR_ERR(di->bat); } - dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION); - bq27xxx_battery_settings(di); bq27xxx_battery_update(di); |