diff options
Diffstat (limited to 'arch/arm/mach-tegra/odm_kit/adaptations/pmu/tps6586x/nvodm_pmu_tps6586x.c')
| -rw-r--r-- | arch/arm/mach-tegra/odm_kit/adaptations/pmu/tps6586x/nvodm_pmu_tps6586x.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/arm/mach-tegra/odm_kit/adaptations/pmu/tps6586x/nvodm_pmu_tps6586x.c b/arch/arm/mach-tegra/odm_kit/adaptations/pmu/tps6586x/nvodm_pmu_tps6586x.c index 0a4769ae8866..d16d22d35a1e 100644 --- a/arch/arm/mach-tegra/odm_kit/adaptations/pmu/tps6586x/nvodm_pmu_tps6586x.c +++ b/arch/arm/mach-tegra/odm_kit/adaptations/pmu/tps6586x/nvodm_pmu_tps6586x.c @@ -873,9 +873,12 @@ Tps6586xSetExternalSupply( if (!Tps6586xI2cWrite8(hDevice, TPS6586x_R5D_GPIOSET1, data)) return NV_FALSE; - if (Enable) + /* To enable the external power rail, it is require to make + the gpio output low. And to disable the external power + rail, it is require to make the gpio output high. */ + if (!Enable) { - // Enable output + // Make gpio output to High for disabling external supply. if (!Tps6586xI2cRead8(hDevice, TPS6586x_R5E_GPIOSET2, &data)) return NV_FALSE; @@ -886,7 +889,7 @@ Tps6586xSetExternalSupply( } else { - // Disable output + // Make gpio output to Low for enable external supply. if (!Tps6586xI2cRead8(hDevice, TPS6586x_R5E_GPIOSET2, &data)) return NV_FALSE; @@ -1486,6 +1489,12 @@ NvBool Tps6586xSetup(NvOdmPmuDeviceHandle hDevice) pmuStatus.batFull = NV_FALSE; } + // By default some of external rails are ON, making them OFF. + hPmu->supplyRefCntTable[Ext_TPS74201PmuSupply_LDO] = 1; + if (NV_FALSE == Tps6586xWriteVoltageReg(hDevice, Ext_TPS74201PmuSupply_LDO, + ODM_VOLTAGE_OFF, NULL)) + NVODMPMU_PRINTF(("TPS: Fail to set Ext_TPS74201PmuSupply_LDO OFF\n")); + return NV_TRUE; OPEN_FAILED: |