linux-kernel - [PATCH] platform/surface: aggregator: Fix event disable function

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Date:   Thu,  3 Jun 2021 02:06:36 +0200
From:   Maximilian Luz <luzmaximilian@...il.com>
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     Mark Gross <mgross@...ux.intel.com>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        Maximilian Luz <luzmaximilian@...il.com>
Subject: [PATCH] platform/surface: aggregator: Fix event disable function

Disabling events silently fails due to the wrong command ID being used.
Instead of the command ID for the disable call, the command ID for the
enable call was being used. This causes the disable call to enable the
event instead. As the event is already enabled when we call this
function, the EC silently drops this command and does nothing.

Use the correct command ID for disabling the event to fix this.

Fixes: c167b9c7e3d6 ("platform/surface: Add Surface Aggregator subsystem")
Signed-off-by: Maximilian Luz <luzmaximilian@...il.com>
---
 drivers/platform/surface/aggregator/controller.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/surface/aggregator/controller.c b/drivers/platform/surface/aggregator/controller.c
index 8a70df60142c..a06964aa96e7 100644
--- a/drivers/platform/surface/aggregator/controller.c
+++ b/drivers/platform/surface/aggregator/controller.c
@@ -1907,7 +1907,7 @@ static int ssam_ssh_event_disable(struct ssam_controller *ctrl,
 {
 	int status;
 
-	status = __ssam_ssh_event_request(ctrl, reg, reg.cid_enable, id, flags);
+	status = __ssam_ssh_event_request(ctrl, reg, reg.cid_disable, id, flags);
 
 	if (status < 0 && status != -EINVAL) {
 		ssam_err(ctrl,
-- 
2.31.1