From: Titus Rwantare <tit...@google.com> VCAP is a register for devices with energy storage capacitors.
Reviewed-by: Benjamin Streb <bst...@google.com> Acked-by: Corey Minyard <cminy...@mvista.com> Signed-off-by: Titus Rwantare <tit...@google.com> Message-ID: <20231023-staging-pmbus-v3-v4-4-07a8cb7cd...@google.com> Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org> --- include/hw/i2c/pmbus_device.h | 1 + hw/i2c/pmbus_device.c | 8 ++++++++ 2 files changed, 9 insertions(+) diff --git a/include/hw/i2c/pmbus_device.h b/include/hw/i2c/pmbus_device.h index ad431bdc7c..f195c11384 100644 --- a/include/hw/i2c/pmbus_device.h +++ b/include/hw/i2c/pmbus_device.h @@ -243,6 +243,7 @@ OBJECT_DECLARE_TYPE(PMBusDevice, PMBusDeviceClass, #define PB_HAS_VIN_RATING BIT_ULL(13) #define PB_HAS_VOUT_RATING BIT_ULL(14) #define PB_HAS_VOUT_MODE BIT_ULL(15) +#define PB_HAS_VCAP BIT_ULL(16) #define PB_HAS_IOUT BIT_ULL(21) #define PB_HAS_IIN BIT_ULL(22) #define PB_HAS_IOUT_RATING BIT_ULL(23) diff --git a/hw/i2c/pmbus_device.c b/hw/i2c/pmbus_device.c index c1d8c93056..3bce39e84e 100644 --- a/hw/i2c/pmbus_device.c +++ b/hw/i2c/pmbus_device.c @@ -906,6 +906,14 @@ static uint8_t pmbus_receive_byte(SMBusDevice *smd) } break; + case PMBUS_READ_VCAP: /* Read-Only word */ + if (pmdev->pages[index].page_flags & PB_HAS_VCAP) { + pmbus_send16(pmdev, pmdev->pages[index].read_vcap); + } else { + goto passthough; + } + break; + case PMBUS_READ_VOUT: /* Read-Only word */ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { pmbus_send16(pmdev, pmdev->pages[index].read_vout); -- 2.41.0