linux-kernel - [PATCH 5.16 022/227] HID: amd_sfh: Increase sensor command timeout

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Message-Id: <20220221084935.584019784@linuxfoundation.org>
Date:   Mon, 21 Feb 2022 09:47:21 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Basavaraj Natikar <Basavaraj.Natikar@....com>,
        Jiri Kosina <jkosina@...e.cz>
Subject: [PATCH 5.16 022/227] HID: amd_sfh: Increase sensor command timeout

From: Basavaraj Natikar <Basavaraj.Natikar@....com>

commit a7072c01c3ac3ae6ecd08fa7b43431cfc8ed331f upstream.

HPD sensors take more time to initialize. Hence increasing sensor
command timeout to get response with status within a max timeout.

Fixes: 173709f50e98 ("HID: amd_sfh: Add command response to check command status")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@....com>
Signed-off-by: Jiri Kosina <jkosina@...e.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/hid/amd-sfh-hid/amd_sfh_pcie.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
+++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
@@ -37,11 +37,11 @@ static int amd_sfh_wait_response_v2(stru
 {
 	union cmd_response cmd_resp;
 
-	/* Get response with status within a max of 800 ms timeout */
+	/* Get response with status within a max of 1600 ms timeout */
 	if (!readl_poll_timeout(mp2->mmio + AMD_P2C_MSG(0), cmd_resp.resp,
 				(cmd_resp.response_v2.response == sensor_sts &&
 				cmd_resp.response_v2.status == 0 && (sid == 0xff ||
-				cmd_resp.response_v2.sensor_id == sid)), 500, 800000))
+				cmd_resp.response_v2.sensor_id == sid)), 500, 1600000))
 		return cmd_resp.response_v2.response;
 
 	return SENSOR_DISABLED;