linux-kernel - [PATCH v18 12/12] input: cyapa: add acpi device id support

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Message-Id: <1421390055-32760-13-git-send-email-dudl@cypress.com>
Date:	Fri, 16 Jan 2015 14:34:15 +0800
From:	Dudley Du <dudl@...ress.com>
To:	dmitry.torokhov@...il.com, jmmahler@...il.com, rydberg@...omail.se
Cc:	Dudley Du <dudl@...ress.com>, bleung@...gle.com,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v18 12/12] input: cyapa: add acpi device id support

Add acpi device tree support.
acpi device id "CYAP0000" is for old gen3 trackpad devices.
acpi device id "CYAP0001" is for new gen5 trackpad devices.
TEST=test on Chromebooks.

Signed-off-by: Dudley Du <dudl@...ress.com>
---
 drivers/input/mouse/cyapa.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 5f9b24a..9dc9f65 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/pm_runtime.h>
+#include <linux/acpi.h>
 #include "cyapa.h"
 
 
@@ -1356,11 +1357,23 @@ static const struct i2c_device_id cyapa_id_table[] = {
 };
 MODULE_DEVICE_TABLE(i2c, cyapa_id_table);
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id cyapa_acpi_id[] = {
+	{ "CYAP0000", 0 },  /* Gen3 trackpad with 0x67 I2C address. */
+	{ "CYAP0001", 0 },  /* Gen5 trackpad with 0x24 I2C address. */
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, cyapa_acpi_id);
+#endif
+
 static struct i2c_driver cyapa_driver = {
 	.driver = {
 		.name = "cyapa",
 		.owner = THIS_MODULE,
 		.pm = &cyapa_pm_ops,
+#ifdef CONFIG_ACPI
+		.acpi_match_table = ACPI_PTR(cyapa_acpi_id),
+#endif
 	},
 
 	.probe = cyapa_probe,
-- 
1.9.1

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