Patch "HID: amd_sfh: Avoid disabling the interrupt" has been added to the 6.6-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    HID: amd_sfh: Avoid disabling the interrupt

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     hid-amd_sfh-avoid-disabling-the-interrupt.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit a9a2aed7f9f85533ca02bda41f80d0ed2373182d
Author: Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
Date:   Wed Feb 14 20:11:42 2024 +0530

    HID: amd_sfh: Avoid disabling the interrupt
    
    [ Upstream commit c1db0073212ef39d5a46c2aea5e49bf884375ce4 ]
    
    HP ProBook x360 435 G7 using older version of firmware which doesn't
    support disabling the interrupt for all commands. Hence avoid disabling
    the interrupt for that particular model.
    
    Link: https://bugzilla.kernel.org/show_bug.cgi?id=218104
    Fixes: b300667b33b2 ("HID: amd_sfh: Disable the interrupt for all command")
    Co-developed-by: Akshata MukundShetty <akshata.mukundshetty@xxxxxxx>
    Signed-off-by: Akshata MukundShetty <akshata.mukundshetty@xxxxxxx>
    Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
    Signed-off-by: Jiri Kosina <jkosina@xxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
index 2530fa98b568b..ce449da08e9ba 100644
--- a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
+++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
@@ -35,6 +35,8 @@ static int sensor_mask_override = -1;
 module_param_named(sensor_mask, sensor_mask_override, int, 0444);
 MODULE_PARM_DESC(sensor_mask, "override the detected sensors mask");
 
+static bool intr_disable = true;
+
 static int amd_sfh_wait_response_v2(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts)
 {
 	union cmd_response cmd_resp;
@@ -55,7 +57,7 @@ static void amd_start_sensor_v2(struct amd_mp2_dev *privdata, struct amd_mp2_sen
 
 	cmd_base.ul = 0;
 	cmd_base.cmd_v2.cmd_id = ENABLE_SENSOR;
-	cmd_base.cmd_v2.intr_disable = 1;
+	cmd_base.cmd_v2.intr_disable = intr_disable;
 	cmd_base.cmd_v2.period = info.period;
 	cmd_base.cmd_v2.sensor_id = info.sensor_idx;
 	cmd_base.cmd_v2.length = 16;
@@ -73,7 +75,7 @@ static void amd_stop_sensor_v2(struct amd_mp2_dev *privdata, u16 sensor_idx)
 
 	cmd_base.ul = 0;
 	cmd_base.cmd_v2.cmd_id = DISABLE_SENSOR;
-	cmd_base.cmd_v2.intr_disable = 1;
+	cmd_base.cmd_v2.intr_disable = intr_disable;
 	cmd_base.cmd_v2.period = 0;
 	cmd_base.cmd_v2.sensor_id = sensor_idx;
 	cmd_base.cmd_v2.length  = 16;
@@ -87,7 +89,7 @@ static void amd_stop_all_sensor_v2(struct amd_mp2_dev *privdata)
 	union sfh_cmd_base cmd_base;
 
 	cmd_base.cmd_v2.cmd_id = STOP_ALL_SENSORS;
-	cmd_base.cmd_v2.intr_disable = 1;
+	cmd_base.cmd_v2.intr_disable = intr_disable;
 	cmd_base.cmd_v2.period = 0;
 	cmd_base.cmd_v2.sensor_id = 0;
 
@@ -292,6 +294,26 @@ int amd_sfh_irq_init(struct amd_mp2_dev *privdata)
 	return 0;
 }
 
+static int mp2_disable_intr(const struct dmi_system_id *id)
+{
+	intr_disable = false;
+	return 0;
+}
+
+static const struct dmi_system_id dmi_sfh_table[] = {
+	{
+		/*
+		 * https://bugzilla.kernel.org/show_bug.cgi?id=218104
+		 */
+		.callback = mp2_disable_intr,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "HP ProBook x360 435 G7"),
+		},
+	},
+	{}
+};
+
 static const struct dmi_system_id dmi_nodevs[] = {
 	{
 		/*
@@ -315,6 +337,8 @@ static int amd_mp2_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
 	if (dmi_first_match(dmi_nodevs))
 		return -ENODEV;
 
+	dmi_check_system(dmi_sfh_table);
+
 	privdata = devm_kzalloc(&pdev->dev, sizeof(*privdata), GFP_KERNEL);
 	if (!privdata)
 		return -ENOMEM;