linux-kernel - [PATCH v2 5/5] input/touchscreen: imagis: add support for IST3032C

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Date:   Tue,  3 Oct 2023 15:34:19 +0200
From:   karelb@...li.ms.mff.cuni.cz
To:     Markuss Broks <markuss.broks@...il.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Henrik Rydberg <rydberg@...math.org>,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht
Cc:     Duje Mihanović <duje.mihanovic@...le.hr>,
        Karel Balej <karelb@...li.ms.mff.cuni.cz>,
        Karel Balej <balejk@...fyz.cz>
Subject: [PATCH v2 5/5] input/touchscreen: imagis: add support for IST3032C

From: Karel Balej <karelb@...li.ms.mff.cuni.cz>

From: Karel Balej <balejk@...fyz.cz>

IST3032C is a touchscreen chip used for instance in the
samsung,coreprimevelte smartphone, with which this was tested. Add the
chip specific information to the driver.

Signed-off-by: Karel Balej <balejk@...fyz.cz>
---
 drivers/input/touchscreen/imagis.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/input/touchscreen/imagis.c b/drivers/input/touchscreen/imagis.c
index 84a02672ac47..41f28e6e9cb1 100644
--- a/drivers/input/touchscreen/imagis.c
+++ b/drivers/input/touchscreen/imagis.c
@@ -35,6 +35,8 @@
 #define IST3038B_REG_CHIPID		0x30
 #define IST3038B_WHOAMI			0x30380b
 
+#define IST3032C_WHOAMI			0x32c
+
 struct imagis_properties {
 	unsigned int interrupt_msg_cmd;
 	unsigned int touch_coord_cmd;
@@ -363,6 +365,13 @@ static int imagis_resume(struct device *dev)
 
 static DEFINE_SIMPLE_DEV_PM_OPS(imagis_pm_ops, imagis_suspend, imagis_resume);
 
+static const struct imagis_properties imagis_3032c_data = {
+	.interrupt_msg_cmd = IST3038C_REG_INTR_MESSAGE,
+	.touch_coord_cmd = IST3038C_REG_TOUCH_COORD,
+	.whoami_cmd = IST3038C_REG_CHIPID,
+	.whoami_val = IST3032C_WHOAMI,
+};
+
 static const struct imagis_properties imagis_3038b_data = {
 	.interrupt_msg_cmd = IST3038B_REG_STATUS,
 	.touch_coord_cmd = IST3038B_REG_STATUS,
@@ -380,6 +389,7 @@ static const struct imagis_properties imagis_3038c_data = {
 
 #ifdef CONFIG_OF
 static const struct of_device_id imagis_of_match[] = {
+	{ .compatible = "imagis,ist3032c", .data = &imagis_3032c_data },
 	{ .compatible = "imagis,ist3038b", .data = &imagis_3038b_data },
 	{ .compatible = "imagis,ist3038c", .data = &imagis_3038c_data },
 	{ },
-- 
2.42.0