linux-kernel - [PATCH] Input: cyttsp5 - fix sensing configuration data structure

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Message-Id: <20230411211651.3791304-1-git@hrdl.eu>
Date:   Tue, 11 Apr 2023 23:16:51 +0200
From:   hrdl <git@...l.eu>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alistair Francis <alistair@...stair23.me>, hrdl <git@...l.eu>
Subject: [PATCH] Input: cyttsp5 - fix sensing configuration data structure

Prior to this patch, the sensing configuration data was not parsed
correctly, breaking detection of max_tch. The vendor driver includes
this field. This change informs the driver about the correct maximum
number of simultaneous touch inputs.

Tested on a Pine64 PineNote with a modified touch screen controller
firmware.

Signed-off-by: hrdl <git@...l.eu>
---
 drivers/input/touchscreen/cyttsp5.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/touchscreen/cyttsp5.c b/drivers/input/touchscreen/cyttsp5.c
index 16caffa35dd9..30102cb80fac 100644
--- a/drivers/input/touchscreen/cyttsp5.c
+++ b/drivers/input/touchscreen/cyttsp5.c
@@ -111,6 +111,7 @@ struct cyttsp5_sensing_conf_data_dev {
 	__le16 max_z;
 	u8 origin_x;
 	u8 origin_y;
+	u8 panel_id;
 	u8 btn;
 	u8 scan_mode;
 	u8 max_num_of_tch_per_refresh_cycle;
-- 
2.39.2