[PATCH 10/14] pmbus: Add read-only IC_DEVICE_ID support

[Peter Delevoryas <pdel@fb.com>]

Signed-off-by: Peter Delevoryas <pdel@fb.com>
---
 hw/i2c/pmbus_device.c            |  5 +++++
 hw/sensor/isl_pmbus_vr.c         | 30 ++++++++++++++++++++++++++++++
 include/hw/i2c/pmbus_device.h    |  1 +
 include/hw/sensor/isl_pmbus_vr.h |  1 +
 4 files changed, 37 insertions(+)

diff --git a/hw/i2c/pmbus_device.c b/hw/i2c/pmbus_device.c
index efddc36fd9..82131fff85 100644
--- a/hw/i2c/pmbus_device.c
+++ b/hw/i2c/pmbus_device.c
@@ -984,6 +984,11 @@ static uint8_t pmbus_receive_byte(SMBusDevice *smd)
         }
         break;
 
+    case PMBUS_IC_DEVICE_ID:
+        pmbus_send(pmdev, pmdev->pages[index].ic_device_id,
+                   sizeof(pmdev->pages[index].ic_device_id));
+        break;
+
     case PMBUS_CLEAR_FAULTS:              /* Send Byte */
     case PMBUS_PAGE_PLUS_WRITE:           /* Block Write-only */
     case PMBUS_STORE_DEFAULT_ALL:         /* Send Byte */
diff --git a/hw/sensor/isl_pmbus_vr.c b/hw/sensor/isl_pmbus_vr.c
index e11e028884..b0d2f49e9d 100644
--- a/hw/sensor/isl_pmbus_vr.c
+++ b/hw/sensor/isl_pmbus_vr.c
@@ -218,6 +218,27 @@ static void isl_pmbus_vr_class_init(ObjectClass *klass, void *data,
     k->device_num_pages = pages;
 }
 
+static void isl69259_init(Object *obj)
+{
+    static const uint8_t ic_device_id[] = {0x04, 0x00, 0x81, 0xD2, 0x49};
+    PMBusDevice *pmdev = PMBUS_DEVICE(obj);
+    int i;
+
+    raa22xx_init(obj);
+    for (i = 0; i < pmdev->num_pages; i++) {
+        memcpy(pmdev->pages[i].ic_device_id, ic_device_id, sizeof(ic_device_id));
+    }
+}
+
+static void isl69259_class_init(ObjectClass *klass, void *data)
+{
+    ResettableClass *rc = RESETTABLE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    dc->desc = "Renesas ISL69259 Digital Multiphase Voltage Regulator";
+    rc->phases.exit = isl_pmbus_vr_exit_reset;
+    isl_pmbus_vr_class_init(klass, data, 2);
+}
+
 static void isl69260_class_init(ObjectClass *klass, void *data)
 {
     ResettableClass *rc = RESETTABLE_CLASS(klass);
@@ -245,6 +266,14 @@ static void raa229004_class_init(ObjectClass *klass, void *data)
     isl_pmbus_vr_class_init(klass, data, 2);
 }
 
+static const TypeInfo isl69259_info = {
+    .name = TYPE_ISL69259,
+    .parent = TYPE_PMBUS_DEVICE,
+    .instance_size = sizeof(ISLState),
+    .instance_init = isl69259_init,
+    .class_init = isl69259_class_init,
+};
+
 static const TypeInfo isl69260_info = {
     .name = TYPE_ISL69260,
     .parent = TYPE_PMBUS_DEVICE,
@@ -271,6 +300,7 @@ static const TypeInfo raa228000_info = {
 
 static void isl_pmbus_vr_register_types(void)
 {
+    type_register_static(&isl69259_info);
     type_register_static(&isl69260_info);
     type_register_static(&raa228000_info);
     type_register_static(&raa229004_info);
diff --git a/include/hw/i2c/pmbus_device.h b/include/hw/i2c/pmbus_device.h
index 0f4d6b3fad..aed7809841 100644
--- a/include/hw/i2c/pmbus_device.h
+++ b/include/hw/i2c/pmbus_device.h
@@ -407,6 +407,7 @@ typedef struct PMBusPage {
     uint16_t mfr_max_temp_1;           /* R/W word */
     uint16_t mfr_max_temp_2;           /* R/W word */
     uint16_t mfr_max_temp_3;           /* R/W word */
+    uint8_t ic_device_id[16];          /* Read-Only block-read */
 } PMBusPage;
 
 /* State */
diff --git a/include/hw/sensor/isl_pmbus_vr.h b/include/hw/sensor/isl_pmbus_vr.h
index 3e47ff7e48..d501b3bc82 100644
--- a/include/hw/sensor/isl_pmbus_vr.h
+++ b/include/hw/sensor/isl_pmbus_vr.h
@@ -12,6 +12,7 @@
 #include "hw/i2c/pmbus_device.h"
 #include "qom/object.h"
 
+#define TYPE_ISL69259   "isl69259"
 #define TYPE_ISL69260   "isl69260"
 #define TYPE_RAA228000  "raa228000"
 #define TYPE_RAA229004  "raa229004"
-- 
2.30.2