[202505][Mellanox] Integrate HW-MGMT Version 7.0040.4034

patch/8013-hwmon-pmbus-mp2975-Clear-interrupts-at-probe.patch

@@ -0,0 +1,74 @@
+From 8d8f4d52f5655747df20317ceaf628e29070475e Mon Sep 17 00:00:00 2001
+From: Ciju Rajan K <[email protected]>
+Date: Tue, 9 Sep 2025 08:48:47 +0300
+Subject: hwmon: pmbus: mp2975: Clear interrupts at probe
+
+In some switches after power on, ALARM is seen for
+power_1 input. According to MPS, driver should clear
+the faults by writing 0 to CLEAR_CAT_FAULTS (0xFD)
+register and CLEAR_FAULTS (0x03) register, during
+the probe.
+
+NVBug: #5360318
+
+Signed-off-by: Ciju Rajan K <[email protected]>
+---
+ drivers/hwmon/pmbus/mp2975.c | 28 ++++++++++++++++++++++++++++
+ 1 file changed, 28 insertions(+)
+
+diff --git a/drivers/hwmon/pmbus/mp2975.c b/drivers/hwmon/pmbus/mp2975.c
+index 51986adfb..47f092259 100644
+--- a/drivers/hwmon/pmbus/mp2975.c
++++ b/drivers/hwmon/pmbus/mp2975.c
+@@ -33,6 +33,7 @@
+ #define MP2975_MFR_READ_VREF_R2		0xa3
+ #define MP2975_MFR_OVP_TH_SET		0xe5
+ #define MP2975_MFR_UVP_SET		0xe6
++#define MP2975_CLEAR_CAT_FAULTS 	0xfd
+
+ #define MP2975_VOUT_FORMAT		BIT(15)
+ #define MP2975_VID_STEP_SEL_R1		BIT(4)
+@@ -659,6 +660,28 @@ mp2975_vout_per_rail_config_get(struct i2c_client *client,
+ 	return 0;
+ }
+
++static int
++mp2975_clear_interrupts(struct i2c_client *client,
++			struct mp2975_data *data)
++{
++	int i = 0;
++	int ret = 0;
++
++	for (i = 0; i < data->info.pages; i++) {
++		ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, i);
++		if (ret < 0)
++			return ret;
++		ret = i2c_smbus_write_byte_data(client, PMBUS_CLEAR_FAULTS, 0);
++		if (ret < 0)
++			return ret;
++		ret = i2c_smbus_write_byte_data(client, MP2975_CLEAR_CAT_FAULTS, 0);
++		if (ret < 0)
++			return ret;
++	}
++
++	return ret;
++}
++
+ static struct pmbus_driver_info mp2975_info = {
+ 	.pages = 1,
+ 	.format[PSC_VOLTAGE_IN] = linear,
+@@ -736,6 +759,11 @@ static int mp2975_probe(struct i2c_client *client)
+ 	if (ret)
+ 		return ret;
+
++	/* Clear interrupts. */
++	ret = mp2975_clear_interrupts(client, data);
++	if (ret)
++		return ret;
++
+ 	return pmbus_do_probe(client, info);
+ }
+
+-- 
+2.47.2
+

patch/8014-platform-mellanox-mlxreg-dpu-Debug-trace-for-dpu-pro.patch

@@ -0,0 +1,32 @@
+From e7838edd2acc793f3b43ab04b3693a340273c330 Mon Sep 17 00:00:00 2001
+From: Ciju Rajan K <[email protected]>
+Date: Fri, 19 Sep 2025 09:51:17 +0300
+Subject: platform: mellanox: mlxreg-dpu: Debug trace for dpu probing
+
+Signed-off-by: Ciju Rajan K <[email protected]>
+---
+ drivers/platform/mellanox/mlxreg-dpu.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/platform/mellanox/mlxreg-dpu.c b/drivers/platform/mellanox/mlxreg-dpu.c
+index c79531481..1074c4853 100644
+--- a/drivers/platform/mellanox/mlxreg-dpu.c
++++ b/drivers/platform/mellanox/mlxreg-dpu.c
+@@ -537,9 +537,13 @@ static int mlxreg_dpu_probe(struct platform_device *pdev)
+ 	if (!data || !data->hpdev.brdinfo)
+ 		return -EINVAL;
+
++	dev_info(&pdev->dev, "Probing for adapter %d\n", data->hpdev.nr);
+ 	data->hpdev.adapter = i2c_get_adapter(data->hpdev.nr);
+-	if (!data->hpdev.adapter)
++	if (!data->hpdev.adapter) {
++		dev_info(&pdev->dev, "Will try a deferred probing for %d\n",
++			data->hpdev.nr);
+ 		return -EPROBE_DEFER;
++	}
+
+ 	mlxreg_dpu = devm_kzalloc(&pdev->dev, sizeof(*mlxreg_dpu), GFP_KERNEL);
+ 	if (!mlxreg_dpu)
+-- 
+2.47.2
+

patch/series

@@ -163,6 +163,8 @@ Support-for-fullcone-nat.patch
 8010-mlxsw-i2c-Downstream-Add-retry-mechanism-for-failed-.patch
 8011-mlxsw-minimal-Downstream-Disable-ethtool-interface.patch
 8012-hwmon-pmbus-Downstream-Workaround-for-psu-attributes.patch
+8013-hwmon-pmbus-mp2975-Clear-interrupts-at-probe.patch
+8014-platform-mellanox-mlxreg-dpu-Debug-trace-for-dpu-pro.patch
 ###-> mellanox_hw_mgmt-end
 
 # Cisco patches for 5.10 kernel