diff options
| author |   Tony Lindgren <tony@atomide.com> | 2019-10-09 14:06:17 -0700 |
|---|---|---|
| committer |   Sebastian Reichel <sre@kernel.org> | 2019-10-20 20:27:10 +0200 |
| commit | 458f5c8cda45fa599c8d984b41ea12c7169bdcd4 (patch) | |
| tree | f1ef15645fe450513ad9866182a8713f225edfe4 /drivers/power/supply | |
| parent | power: supply: cpcap-charger: Allow changing constant charge voltage (diff) | |
| download | linux-dev-458f5c8cda45fa599c8d984b41ea12c7169bdcd4.tar.xz linux-dev-458f5c8cda45fa599c8d984b41ea12c7169bdcd4.zip | |
power: supply: cpcap-battery: Move coulomb counter units per lsb to ddata
We can simplify cpcap_battery_cc_raw_div() a bit by moving the units per
lsb to ddata.
Cc: Merlijn Wajer <merlijn@wizzup.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'drivers/power/supply')
| -rw-r--r-- | drivers/power/supply/cpcap-battery.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/power/supply/cpcap-battery.c b/drivers/power/supply/cpcap-battery.c index 1640c39ead56..914e3ddfd80b 100644 --- a/drivers/power/supply/cpcap-battery.c +++ b/drivers/power/supply/cpcap-battery.c @@ -111,6 +111,7 @@ struct cpcap_battery_ddata { struct power_supply *psy; struct cpcap_battery_config config; struct cpcap_battery_state_data state[CPCAP_BATTERY_STATE_NR]; + u32 cc_lsb; /* μAms per LSB */ atomic_t active; int status; u16 vendor; @@ -220,32 +221,19 @@ static int cpcap_battery_cc_raw_div(struct cpcap_battery_ddata *ddata, s64 acc; u64 tmp; int avg_current; - u32 cc_lsb; if (!divider) return 0; - switch (ddata->vendor) { - case CPCAP_VENDOR_ST: - cc_lsb = 95374; /* μAms per LSB */ - break; - case CPCAP_VENDOR_TI: - cc_lsb = 91501; /* μAms per LSB */ - break; - default: - return -EINVAL; - } - acc = accumulator; acc = acc - ((s64)sample * offset); - cc_lsb = (cc_lsb * ddata->config.cd_factor) / 1000; if (acc >= 0) tmp = acc; else tmp = acc * -1; - tmp = tmp * cc_lsb; + tmp = tmp * ddata->cc_lsb; do_div(tmp, divider); avg_current = tmp; @@ -812,6 +800,18 @@ static int cpcap_battery_probe(struct platform_device *pdev) if (error) return error; + switch (ddata->vendor) { + case CPCAP_VENDOR_ST: + ddata->cc_lsb = 95374; /* μAms per LSB */ + break; + case CPCAP_VENDOR_TI: + ddata->cc_lsb = 91501; /* μAms per LSB */ + break; + default: + return -EINVAL; + } + ddata->cc_lsb = (ddata->cc_lsb * ddata->config.cd_factor) / 1000; + platform_set_drvdata(pdev, ddata); error = regmap_update_bits(ddata->reg, CPCAP_REG_CCM, |