mfd: cros_ec_i2c: Add ACPI module device table

Add ACPI module device table for matching cros-ec devices to load the
cros_ec_i2c driver automatically.

Signed-off-by: Wei-Ning Huang <wnhuang@google.com>
Acked-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index 1f88952..1d6dc5c 100644 (file)
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -482,7 +482,7 @@ static void ec_device_shutdown(struct platform_device *pdev)
 
 static const struct platform_device_id cros_ec_id[] = {
        { DRV_NAME, 0 },
-       { /* sentinel */ },
+       { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(platform, cros_ec_id);
 

diff --git a/drivers/mfd/cros_ec_i2c.c b/drivers/mfd/cros_ec_i2c.c
index 9f70de1..02a7bac 100644 (file)
--- a/drivers/mfd/cros_ec_i2c.c
+++ b/drivers/mfd/cros_ec_i2c.c
@@ -13,6 +13,7 @@
  * GNU General Public License for more details.
  */
 
+#include <linux/acpi.h>
 #include <linux/delay.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -344,11 +345,13 @@ static int cros_ec_i2c_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(cros_ec_i2c_pm_ops, cros_ec_i2c_suspend,
                          cros_ec_i2c_resume);
 
+#ifdef CONFIG_OF
 static const struct of_device_id cros_ec_i2c_of_match[] = {
        { .compatible = "google,cros-ec-i2c", },
        { /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, cros_ec_i2c_of_match);
+#endif
 
 static const struct i2c_device_id cros_ec_i2c_id[] = {
        { "cros-ec-i2c", 0 },
@@ -356,9 +359,18 @@ static const struct i2c_device_id cros_ec_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, cros_ec_i2c_id);
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id cros_ec_i2c_acpi_id[] = {
+       { "GOOG0008", 0 },
+       { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(acpi, cros_ec_i2c_acpi_id);
+#endif
+
 static struct i2c_driver cros_ec_driver = {
        .driver = {
                .name   = "cros-ec-i2c",
+               .acpi_match_table = ACPI_PTR(cros_ec_i2c_acpi_id),
                .of_match_table = of_match_ptr(cros_ec_i2c_of_match),
                .pm     = &cros_ec_i2c_pm_ops,
        },