From cd927c467ac012f492357fcb9a85ca2f5dd06ad4 Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Wed, 8 Nov 2023 16:20:27 +0000 Subject: [PATCH] input: goodix: Include I2C details in names for the devices libinput uses the input device name alone. If you have two identical input devices, then there is no way to differentiate between them, and in the case of touchscreens that means no way to associate them with the appropriate display device. Add the I2C bus and address to the start of the input device name so that the name is always unique within the system. Signed-off-by: Dave Stevenson --- drivers/input/touchscreen/goodix.c | 5 ++++- drivers/input/touchscreen/goodix.h | 3 +++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c index 93d24ab..3b3f76c9 100644 --- a/drivers/input/touchscreen/goodix.c +++ b/drivers/input/touchscreen/goodix.c @@ -1193,7 +1193,10 @@ static int goodix_configure_dev(struct goodix_ts_data *ts) return -ENOMEM; } - ts->input_dev->name = "Goodix Capacitive TouchScreen"; + snprintf(ts->name, GOODIX_NAME_MAX_LEN, "%s Goodix Capacitive TouchScreen", + dev_name(&ts->client->dev)); + + ts->input_dev->name = ts->name; ts->input_dev->phys = "input/ts"; ts->input_dev->id.bustype = BUS_I2C; ts->input_dev->id.vendor = 0x0416; diff --git a/drivers/input/touchscreen/goodix.h b/drivers/input/touchscreen/goodix.h index 8a52621..235dd5f 100644 --- a/drivers/input/touchscreen/goodix.h +++ b/drivers/input/touchscreen/goodix.h @@ -57,6 +57,8 @@ #define GOODIX_CONFIG_MAX_LENGTH 240 #define GOODIX_MAX_KEYS 7 +#define GOODIX_NAME_MAX_LEN 38 + enum goodix_irq_pin_access_method { IRQ_PIN_ACCESS_NONE, IRQ_PIN_ACCESS_GPIO, @@ -91,6 +93,7 @@ struct goodix_ts_data { enum gpiod_flags gpiod_rst_flags; char id[GOODIX_ID_MAX_LEN + 1]; char cfg_name[64]; + char name[GOODIX_NAME_MAX_LEN]; u16 version; bool reset_controller_at_probe; bool load_cfg_from_disk; -- 2.7.4