diff options
| author | Ankita Garg <ankitag@nvidia.com> | 2014-01-15 15:10:23 -0800 |
|---|---|---|
| committer | Diwakar Tundlam <dtundlam@nvidia.com> | 2014-02-13 14:29:04 -0800 |
| commit | 56180cdc957e1d1d09f990ab7737f2694b3c4b9f (patch) | |
| tree | 7187e99ff4b9ab0102c38389d4bb2e85795a84e8 /arch/arm/mach-tegra/board-loki-power.c | |
| parent | 3dfcb7ad7771d0910b2fa76a45022fce9a5ebc3e (diff) | |
arm: tegra: loki: Support to read battery temp through PMIC
This change enables reading the battery temperature through
PMIC ADC. The adc value conversion to temperature is performed
using a look-up table that maps the adc values to temp. The
conversion table is based on values generated for Loki
P2530 board.
More details on the source of the table can be
found in the bug.
Bug 1408758
Change-Id: I24aa6eb4f23f9fb465da2e28105da5ecdd113683
Signed-off-by: Ankita Garg <ankitag@nvidia.com>
Reviewed-on: http://git-master/r/356182
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>
Tested-by: Diwakar Tundlam <dtundlam@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/board-loki-power.c')
| -rw-r--r-- | arch/arm/mach-tegra/board-loki-power.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-loki-power.c b/arch/arm/mach-tegra/board-loki-power.c index 5506867e893e..f67d93c2463e 100644 --- a/arch/arm/mach-tegra/board-loki-power.c +++ b/arch/arm/mach-tegra/board-loki-power.c @@ -369,6 +369,7 @@ static struct palmas_reg_init *loki_reg_init[PALMAS_NUM_REGS] = { static struct iio_map palmas_adc_iio_maps[] = { PALMAS_GPADC_IIO_MAP(IN1, "generic-adc-thermal.0", "thermistor"), PALMAS_GPADC_IIO_MAP(IN3, "generic-adc-thermal.1", "tdiode"), + PALMAS_GPADC_IIO_MAP(IN4, "generic-adc-thermal.2", "tbat"), PALMAS_GPADC_IIO_MAP(NULL, NULL, NULL), }; |