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[PATCH 5/5] hw/i2c: pmbus: add VCAP register
From: |
Titus Rwantare |
Subject: |
[PATCH 5/5] hw/i2c: pmbus: add VCAP register |
Date: |
Wed, 22 Mar 2023 17:55:13 +0000 |
VCAP is a register for devices with energy storage capacitors.
Reviewed-by: Benjamin Streb <bstreb@google.com>
Signed-off-by: Titus Rwantare <titusr@google.com>
---
hw/i2c/pmbus_device.c | 8 ++++++++
include/hw/i2c/pmbus_device.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/hw/i2c/pmbus_device.c b/hw/i2c/pmbus_device.c
index 18e629eaac..ef0314a913 100644
--- a/hw/i2c/pmbus_device.c
+++ b/hw/i2c/pmbus_device.c
@@ -903,6 +903,14 @@ 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);
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)
--
2.40.0.rc1.284.g88254d51c5-goog
- [PATCH 1/5] hw/i2c: pmbus add support for block receive, (continued)
- [PATCH 1/5] hw/i2c: pmbus add support for block receive, Titus Rwantare, 2023/03/22
- [PATCH 2/5] hw/i2c: pmbus: add vout mode bitfields, Titus Rwantare, 2023/03/22
- [PATCH 3/5] hw/i2c: pmbus: add fan support, Titus Rwantare, 2023/03/22
- [PATCH 4/5] hw/i2c: pmbus: block uninitialised string reads, Titus Rwantare, 2023/03/22
- [PATCH 5/5] hw/i2c: pmbus: add VCAP register,
Titus Rwantare <=
- Re: [PATCH 0/5] PMBus fixes and new functions, Philippe Mathieu-Daudé, 2023/03/30