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hw/i2c: pmbus: add VCAP register

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VCAP is a register for devices with energy storage capacitors.

Reviewed-by: Benjamin Streb <bstreb@google.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Titus Rwantare <titusr@google.com>
Message-ID: <20231023-staging-pmbus-v3-v4-4-07a8cb7cd20a@google.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Titus Rwantare 2023-10-23 23:46:43 +00:00 committed by Philippe Mathieu-Daudé
parent b7fba25ef1
commit 3401b1dd1a
2 changed files with 9 additions and 0 deletions
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8
hw/i2c/pmbus_device.c
View file

@ -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);

1
include/hw/i2c/pmbus_device.h
View file

@ -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)