[PATCH AUTOSEL 6.8 78/98] input/touchscreen: imagis: add support for IST3032C

From: Sasha Levin
Date: Fri Mar 29 2024 - 09:55:25 EST


From: Karel Balej <balejk@xxxxxxxxx>

[ Upstream commit 90cb57a6c5717b83a110c0da720a03ee32ed255e ]

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.

Reviewed-by: Markuss Broks <markuss.broks@xxxxxxxxx>
Signed-off-by: Karel Balej <balejk@xxxxxxxxx>
Link: https://lore.kernel.org/r/20240301164659.13240-6-karelb@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 9af8a6332ae67..e1fafa561ee38 100644
--- a/drivers/input/touchscreen/imagis.c
+++ b/drivers/input/touchscreen/imagis.c
@@ -11,6 +11,8 @@
#include <linux/property.h>
#include <linux/regulator/consumer.h>

+#define IST3032C_WHOAMI 0x32c
+
#define IST3038B_REG_STATUS 0x20
#define IST3038B_REG_CHIPID 0x30
#define IST3038B_WHOAMI 0x30380b
@@ -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 },
{ },
--
2.43.0