linux-kernel - [PATCH 6.0 376/862] platform/chrome: cros_ec

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Message-Id: <20221019083306.598780576@linuxfoundation.org>
Date:   Wed, 19 Oct 2022 10:27:43 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Prashant Malani <pmalani@...omium.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Tzung-Bi Shih <tzungbi@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.0 376/862] platform/chrome: cros_ec_typec: Correct alt mode index

From: Prashant Malani <pmalani@...omium.org>

[ Upstream commit 4e477663e396f48c5cfc5f2d75d4b514f409516a ]

Alt mode indices used by USB PD (Power Delivery) start with 1, not 0.

Update the alt mdoe registration code to factor this in to the alt mode
descriptor.

Fixes: de0f49487db3 ("platform/chrome: cros_ec_typec: Register partner altmodes")
Signed-off-by: Prashant Malani <pmalani@...omium.org>
Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@...nel.org>
Link: https://lore.kernel.org/r/20220819190807.1275937-3-pmalani@chromium.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/platform/chrome/cros_ec_typec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index 4d81d8d45b73..dc5722db2066 100644
--- a/drivers/platform/chrome/cros_ec_typec.c
+++ b/drivers/platform/chrome/cros_ec_typec.c
@@ -698,7 +698,7 @@ static int cros_typec_register_altmodes(struct cros_typec_data *typec, int port_
 		for (j = 0; j < sop_disc->svids[i].mode_count; j++) {
 			memset(&desc, 0, sizeof(desc));
 			desc.svid = sop_disc->svids[i].svid;
-			desc.mode = j;
+			desc.mode = j + 1;
 			desc.vdo = sop_disc->svids[i].mode_vdo[j];
 
 			if (is_partner)
-- 
2.35.1