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53 lines
1.8 KiB
Diff
53 lines
1.8 KiB
Diff
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From a420bbde05f8a6691b0c3e0830092e443365aaa7 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Wed, 8 Nov 2023 16:20:27 +0000
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Subject: [PATCH] input: goodix: Include I2C details in names for the devices
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libinput uses the input device name alone. If you have two
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identical input devices, then there is no way to differentiate
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between them, and in the case of touchscreens that means no
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way to associate them with the appropriate display device.
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Add the I2C bus and address to the start of the input device
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name so that the name is always unique within the system.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/input/touchscreen/goodix.c | 5 ++++-
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drivers/input/touchscreen/goodix.h | 3 +++
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2 files changed, 7 insertions(+), 1 deletion(-)
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--- a/drivers/input/touchscreen/goodix.c
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+++ b/drivers/input/touchscreen/goodix.c
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@@ -1211,7 +1211,10 @@ static int goodix_configure_dev(struct g
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return -ENOMEM;
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}
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- ts->input_dev->name = "Goodix Capacitive TouchScreen";
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+ snprintf(ts->name, GOODIX_NAME_MAX_LEN, "%s Goodix Capacitive TouchScreen",
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+ dev_name(&ts->client->dev));
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+
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+ ts->input_dev->name = ts->name;
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ts->input_dev->phys = "input/ts";
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ts->input_dev->id.bustype = BUS_I2C;
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ts->input_dev->id.vendor = 0x0416;
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--- a/drivers/input/touchscreen/goodix.h
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+++ b/drivers/input/touchscreen/goodix.h
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@@ -57,6 +57,8 @@
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#define GOODIX_CONFIG_MAX_LENGTH 240
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#define GOODIX_MAX_KEYS 7
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+#define GOODIX_NAME_MAX_LEN 38
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+
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enum goodix_irq_pin_access_method {
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IRQ_PIN_ACCESS_NONE,
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IRQ_PIN_ACCESS_GPIO,
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@@ -91,6 +93,7 @@ struct goodix_ts_data {
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enum gpiod_flags gpiod_rst_flags;
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char id[GOODIX_ID_MAX_LEN + 1];
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char cfg_name[64];
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+ char name[GOODIX_NAME_MAX_LEN];
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u16 version;
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bool reset_controller_at_probe;
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bool load_cfg_from_disk;
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