* [PATCH] power: bq27x00_battery: add bq27510 support
@ 2015-02-22 14:08 Alexandre Belloni
2015-02-25 22:17 ` Sebastian Reichel
0 siblings, 1 reply; 4+ messages in thread
From: Alexandre Belloni @ 2015-02-22 14:08 UTC (permalink / raw)
To: Sebastian Reichel
Cc: Dmitry Eremin-Solenikov, David Woodhouse, linux-pm, linux-kernel,
Alexandre Belloni
Add support for bq27510 to the bq27x00 driver.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
drivers/power/bq27x00_battery.c | 50 ++++++++++++++++++++++++++++++++++++-----
1 file changed, 45 insertions(+), 5 deletions(-)
diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index a78ac201828e..1eac363bbc8e 100644
--- a/drivers/power/bq27x00_battery.c
+++ b/drivers/power/bq27x00_battery.c
@@ -24,6 +24,7 @@
* http://focus.ti.com/docs/prod/folders/print/bq27500.html
* http://www.ti.com/product/bq27425-g1
* http://www.ti.com/product/BQ27742-G1
+ * http://www.ti.com/product/BQ27510-G3
*/
#include <linux/device.h>
@@ -74,6 +75,10 @@
#define BQ27742_POWER_AVG 0x76
+#define BQ27510_REG_SOC 0x20
+#define BQ27510_REG_DCAP 0x2E /* Design capacity */
+#define BQ27510_REG_CYCT 0x1E /* Cycle count total */
+
/* bq27425 register addresses are same as bq27x00 addresses minus 4 */
#define BQ27425_REG_OFFSET 0x04
#define BQ27425_REG_SOC 0x18 /* Register address plus offset */
@@ -86,7 +91,7 @@ struct bq27x00_access_methods {
int (*read)(struct bq27x00_device_info *di, u8 reg, bool single);
};
-enum bq27x00_chip { BQ27000, BQ27500, BQ27425, BQ27742};
+enum bq27x00_chip { BQ27000, BQ27500, BQ27425, BQ27742, BQ27510};
struct bq27x00_reg_cache {
int temperature;
@@ -173,6 +178,24 @@ static enum power_supply_property bq27742_battery_props[] = {
POWER_SUPPLY_PROP_HEALTH,
};
+static enum power_supply_property bq27510_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_CAPACITY_LEVEL,
+ POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CHARGE_FULL,
+ POWER_SUPPLY_PROP_CHARGE_NOW,
+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
+ POWER_SUPPLY_PROP_CYCLE_COUNT,
+ POWER_SUPPLY_PROP_POWER_AVG,
+ POWER_SUPPLY_PROP_HEALTH,
+};
+
static unsigned int poll_interval = 360;
module_param(poll_interval, uint, 0644);
MODULE_PARM_DESC(poll_interval, "battery poll interval in seconds - " \
@@ -197,7 +220,8 @@ static inline int bq27x00_read(struct bq27x00_device_info *di, u8 reg,
*/
static bool bq27xxx_is_chip_version_higher(struct bq27x00_device_info *di)
{
- if (di->chip == BQ27425 || di->chip == BQ27500 || di->chip == BQ27742)
+ if (di->chip == BQ27425 || di->chip == BQ27500 || di->chip == BQ27742
+ || di->chip == BQ27510)
return true;
return false;
}
@@ -212,6 +236,8 @@ static int bq27x00_battery_read_rsoc(struct bq27x00_device_info *di)
if (di->chip == BQ27500 || di->chip == BQ27742)
rsoc = bq27x00_read(di, BQ27500_REG_SOC, false);
+ else if (di->chip == BQ27510)
+ rsoc = bq27x00_read(di, BQ27510_REG_SOC, false);
else if (di->chip == BQ27425)
rsoc = bq27x00_read(di, BQ27425_REG_SOC, false);
else
@@ -282,7 +308,9 @@ static int bq27x00_battery_read_ilmd(struct bq27x00_device_info *di)
{
int ilmd;
- if (bq27xxx_is_chip_version_higher(di))
+ if (di->chip == BQ27510)
+ ilmd = bq27x00_read(di, BQ27510_REG_DCAP, false);
+ else if (bq27xxx_is_chip_version_higher(di))
ilmd = bq27x00_read(di, BQ27500_REG_DCAP, false);
else
ilmd = bq27x00_read(di, BQ27000_REG_ILMD, true);
@@ -350,6 +378,9 @@ static int bq27x00_battery_read_cyct(struct bq27x00_device_info *di)
{
int cyct;
+
+ if (di->chip == BQ27510)
+ cyct = bq27x00_read(di, BQ27510_REG_CYCT, false);
cyct = bq27x00_read(di, BQ27x00_REG_CYCT, false);
if (cyct < 0)
dev_err(di->dev, "error reading cycle count total\n");
@@ -421,6 +452,10 @@ static int bq27x00_battery_read_health(struct bq27x00_device_info *di)
else
tval = POWER_SUPPLY_HEALTH_GOOD;
return tval;
+ } else if (di->chip == BQ27510) {
+ if (tval & BQ27500_FLAG_OTC)
+ return POWER_SUPPLY_HEALTH_OVERHEAT;
+ return POWER_SUPPLY_HEALTH_GOOD;
} else {
if (tval & BQ27000_FLAG_EDV1)
tval = POWER_SUPPLY_HEALTH_DEAD;
@@ -436,6 +471,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
{
struct bq27x00_reg_cache cache = {0, };
bool is_bq27500 = di->chip == BQ27500;
+ bool is_bq27510 = di->chip == BQ27510;
bool is_bq27425 = di->chip == BQ27425;
bool is_bq27742 = di->chip == BQ27742;
bool flags_1b = !(is_bq27500 || is_bq27742);
@@ -445,7 +481,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
/* read error */
cache.flags = -1;
if (cache.flags >= 0) {
- if (!is_bq27500 && !is_bq27425 && !is_bq27742
+ if (!is_bq27500 && !is_bq27425 && !is_bq27742 && !is_bq27510
&& (cache.flags & BQ27000_FLAG_CI)) {
dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");
cache.capacity = -ENODATA;
@@ -457,7 +493,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
cache.health = -ENODATA;
} else {
cache.capacity = bq27x00_battery_read_rsoc(di);
- if (is_bq27742)
+ if (is_bq27742 || is_bq27510)
cache.time_to_empty =
bq27x00_battery_read_time(di,
BQ27x00_REG_TTE);
@@ -740,6 +776,9 @@ static int bq27x00_powersupply_init(struct bq27x00_device_info *di)
} else if (di->chip == BQ27742) {
di->bat.properties = bq27742_battery_props;
di->bat.num_properties = ARRAY_SIZE(bq27742_battery_props);
+ } else if (di->chip == BQ27510) {
+ di->bat.properties = bq27510_battery_props;
+ di->bat.num_properties = ARRAY_SIZE(bq27510_battery_props);
} else {
di->bat.properties = bq27x00_battery_props;
di->bat.num_properties = ARRAY_SIZE(bq27x00_battery_props);
@@ -897,6 +936,7 @@ static const struct i2c_device_id bq27x00_id[] = {
{ "bq27500", BQ27500 },
{ "bq27425", BQ27425 },
{ "bq27742", BQ27742 },
+ { "bq27510", BQ27510 },
{},
};
MODULE_DEVICE_TABLE(i2c, bq27x00_id);
--
2.1.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] power: bq27x00_battery: add bq27510 support
2015-02-22 14:08 [PATCH] power: bq27x00_battery: add bq27510 support Alexandre Belloni
@ 2015-02-25 22:17 ` Sebastian Reichel
2015-02-28 13:22 ` Alexandre Belloni
0 siblings, 1 reply; 4+ messages in thread
From: Sebastian Reichel @ 2015-02-25 22:17 UTC (permalink / raw)
To: Alexandre Belloni
Cc: Dmitry Eremin-Solenikov, David Woodhouse, linux-pm, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 6510 bytes --]
Hi Alexandre,
On Sun, Feb 22, 2015 at 03:08:31PM +0100, Alexandre Belloni wrote:
> Add support for bq27510 to the bq27x00 driver.
>
> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
patch looks mostly fine to me, I have two comments (inline).
-- Sebastian
> ---
> drivers/power/bq27x00_battery.c | 50 ++++++++++++++++++++++++++++++++++++-----
> 1 file changed, 45 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
> index a78ac201828e..1eac363bbc8e 100644
> --- a/drivers/power/bq27x00_battery.c
> +++ b/drivers/power/bq27x00_battery.c
> @@ -24,6 +24,7 @@
> * http://focus.ti.com/docs/prod/folders/print/bq27500.html
> * http://www.ti.com/product/bq27425-g1
> * http://www.ti.com/product/BQ27742-G1
> + * http://www.ti.com/product/BQ27510-G3
> */
>
> #include <linux/device.h>
> @@ -74,6 +75,10 @@
>
> #define BQ27742_POWER_AVG 0x76
>
> +#define BQ27510_REG_SOC 0x20
> +#define BQ27510_REG_DCAP 0x2E /* Design capacity */
> +#define BQ27510_REG_CYCT 0x1E /* Cycle count total */
> +
> /* bq27425 register addresses are same as bq27x00 addresses minus 4 */
> #define BQ27425_REG_OFFSET 0x04
> #define BQ27425_REG_SOC 0x18 /* Register address plus offset */
> @@ -86,7 +91,7 @@ struct bq27x00_access_methods {
> int (*read)(struct bq27x00_device_info *di, u8 reg, bool single);
> };
>
> -enum bq27x00_chip { BQ27000, BQ27500, BQ27425, BQ27742};
> +enum bq27x00_chip { BQ27000, BQ27500, BQ27425, BQ27742, BQ27510};
>
> struct bq27x00_reg_cache {
> int temperature;
> @@ -173,6 +178,24 @@ static enum power_supply_property bq27742_battery_props[] = {
> POWER_SUPPLY_PROP_HEALTH,
> };
>
> +static enum power_supply_property bq27510_battery_props[] = {
> + POWER_SUPPLY_PROP_STATUS,
> + POWER_SUPPLY_PROP_PRESENT,
> + POWER_SUPPLY_PROP_VOLTAGE_NOW,
> + POWER_SUPPLY_PROP_CURRENT_NOW,
> + POWER_SUPPLY_PROP_CAPACITY,
> + POWER_SUPPLY_PROP_CAPACITY_LEVEL,
> + POWER_SUPPLY_PROP_TEMP,
> + POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
> + POWER_SUPPLY_PROP_TECHNOLOGY,
> + POWER_SUPPLY_PROP_CHARGE_FULL,
> + POWER_SUPPLY_PROP_CHARGE_NOW,
> + POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
> + POWER_SUPPLY_PROP_CYCLE_COUNT,
> + POWER_SUPPLY_PROP_POWER_AVG,
> + POWER_SUPPLY_PROP_HEALTH,
> +};
> +
> static unsigned int poll_interval = 360;
> module_param(poll_interval, uint, 0644);
> MODULE_PARM_DESC(poll_interval, "battery poll interval in seconds - " \
> @@ -197,7 +220,8 @@ static inline int bq27x00_read(struct bq27x00_device_info *di, u8 reg,
> */
> static bool bq27xxx_is_chip_version_higher(struct bq27x00_device_info *di)
> {
> - if (di->chip == BQ27425 || di->chip == BQ27500 || di->chip == BQ27742)
> + if (di->chip == BQ27425 || di->chip == BQ27500 || di->chip == BQ27742
> + || di->chip == BQ27510)
> return true;
> return false;
> }
> @@ -212,6 +236,8 @@ static int bq27x00_battery_read_rsoc(struct bq27x00_device_info *di)
>
> if (di->chip == BQ27500 || di->chip == BQ27742)
> rsoc = bq27x00_read(di, BQ27500_REG_SOC, false);
> + else if (di->chip == BQ27510)
> + rsoc = bq27x00_read(di, BQ27510_REG_SOC, false);
> else if (di->chip == BQ27425)
> rsoc = bq27x00_read(di, BQ27425_REG_SOC, false);
> else
> @@ -282,7 +308,9 @@ static int bq27x00_battery_read_ilmd(struct bq27x00_device_info *di)
> {
> int ilmd;
>
> - if (bq27xxx_is_chip_version_higher(di))
> + if (di->chip == BQ27510)
> + ilmd = bq27x00_read(di, BQ27510_REG_DCAP, false);
> + else if (bq27xxx_is_chip_version_higher(di))
> ilmd = bq27x00_read(di, BQ27500_REG_DCAP, false);
> else
> ilmd = bq27x00_read(di, BQ27000_REG_ILMD, true);
> @@ -350,6 +378,9 @@ static int bq27x00_battery_read_cyct(struct bq27x00_device_info *di)
> {
> int cyct;
>
> +
spurious newline.
> + if (di->chip == BQ27510)
> + cyct = bq27x00_read(di, BQ27510_REG_CYCT, false);
> cyct = bq27x00_read(di, BQ27x00_REG_CYCT, false);
missing else?
> if (cyct < 0)
> dev_err(di->dev, "error reading cycle count total\n");
> @@ -421,6 +452,10 @@ static int bq27x00_battery_read_health(struct bq27x00_device_info *di)
> else
> tval = POWER_SUPPLY_HEALTH_GOOD;
> return tval;
> + } else if (di->chip == BQ27510) {
> + if (tval & BQ27500_FLAG_OTC)
> + return POWER_SUPPLY_HEALTH_OVERHEAT;
> + return POWER_SUPPLY_HEALTH_GOOD;
> } else {
> if (tval & BQ27000_FLAG_EDV1)
> tval = POWER_SUPPLY_HEALTH_DEAD;
> @@ -436,6 +471,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
> {
> struct bq27x00_reg_cache cache = {0, };
> bool is_bq27500 = di->chip == BQ27500;
> + bool is_bq27510 = di->chip == BQ27510;
> bool is_bq27425 = di->chip == BQ27425;
> bool is_bq27742 = di->chip == BQ27742;
> bool flags_1b = !(is_bq27500 || is_bq27742);
> @@ -445,7 +481,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
> /* read error */
> cache.flags = -1;
> if (cache.flags >= 0) {
> - if (!is_bq27500 && !is_bq27425 && !is_bq27742
> + if (!is_bq27500 && !is_bq27425 && !is_bq27742 && !is_bq27510
> && (cache.flags & BQ27000_FLAG_CI)) {
> dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");
> cache.capacity = -ENODATA;
> @@ -457,7 +493,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
> cache.health = -ENODATA;
> } else {
> cache.capacity = bq27x00_battery_read_rsoc(di);
> - if (is_bq27742)
> + if (is_bq27742 || is_bq27510)
> cache.time_to_empty =
> bq27x00_battery_read_time(di,
> BQ27x00_REG_TTE);
> @@ -740,6 +776,9 @@ static int bq27x00_powersupply_init(struct bq27x00_device_info *di)
> } else if (di->chip == BQ27742) {
> di->bat.properties = bq27742_battery_props;
> di->bat.num_properties = ARRAY_SIZE(bq27742_battery_props);
> + } else if (di->chip == BQ27510) {
> + di->bat.properties = bq27510_battery_props;
> + di->bat.num_properties = ARRAY_SIZE(bq27510_battery_props);
> } else {
> di->bat.properties = bq27x00_battery_props;
> di->bat.num_properties = ARRAY_SIZE(bq27x00_battery_props);
> @@ -897,6 +936,7 @@ static const struct i2c_device_id bq27x00_id[] = {
> { "bq27500", BQ27500 },
> { "bq27425", BQ27425 },
> { "bq27742", BQ27742 },
> + { "bq27510", BQ27510 },
> {},
> };
> MODULE_DEVICE_TABLE(i2c, bq27x00_id);
> --
> 2.1.0
>
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] power: bq27x00_battery: add bq27510 support
2015-02-25 22:17 ` Sebastian Reichel
@ 2015-02-28 13:22 ` Alexandre Belloni
2015-02-28 16:12 ` Sebastian Reichel
0 siblings, 1 reply; 4+ messages in thread
From: Alexandre Belloni @ 2015-02-28 13:22 UTC (permalink / raw)
To: Sebastian Reichel
Cc: Dmitry Eremin-Solenikov, David Woodhouse, linux-pm, linux-kernel
Hi,
On 25/02/2015 at 23:17:48 +0100, Sebastian Reichel wrote :
> > @@ -350,6 +378,9 @@ static int bq27x00_battery_read_cyct(struct bq27x00_device_info *di)
> > {
> > int cyct;
> >
> > +
>
> spurious newline.
>
> > + if (di->chip == BQ27510)
> > + cyct = bq27x00_read(di, BQ27510_REG_CYCT, false);
> > cyct = bq27x00_read(di, BQ27x00_REG_CYCT, false);
>
> missing else?
>
Indeed, I just sent v2. However, I'm not too happy with all that if/else
layering in this driver. I'll try to rework it so that it scales better.
Regards,
--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] power: bq27x00_battery: add bq27510 support
2015-02-28 13:22 ` Alexandre Belloni
@ 2015-02-28 16:12 ` Sebastian Reichel
0 siblings, 0 replies; 4+ messages in thread
From: Sebastian Reichel @ 2015-02-28 16:12 UTC (permalink / raw)
To: Alexandre Belloni
Cc: Dmitry Eremin-Solenikov, David Woodhouse, linux-pm, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 723 bytes --]
Hi Alexandre,
On Sat, Feb 28, 2015 at 02:22:23PM +0100, Alexandre Belloni wrote:
> Hi,
>
> On 25/02/2015 at 23:17:48 +0100, Sebastian Reichel wrote :
> > > @@ -350,6 +378,9 @@ static int bq27x00_battery_read_cyct(struct bq27x00_device_info *di)
> > > {
> > > int cyct;
> > >
> > > +
> >
> > spurious newline.
> >
> > > + if (di->chip == BQ27510)
> > > + cyct = bq27x00_read(di, BQ27510_REG_CYCT, false);
> > > cyct = bq27x00_read(di, BQ27x00_REG_CYCT, false);
> >
> > missing else?
> >
>
> Indeed, I just sent v2. However, I'm not too happy with all that if/else
> layering in this driver. I'll try to rework it so that it scales better.
Thanks, that would be nice.
-- Sebastian
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-02-28 16:12 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-02-22 14:08 [PATCH] power: bq27x00_battery: add bq27510 support Alexandre Belloni
2015-02-25 22:17 ` Sebastian Reichel
2015-02-28 13:22 ` Alexandre Belloni
2015-02-28 16:12 ` Sebastian Reichel
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).