[PATCH v3 4/5] platform/chrome: cros_kbd_led_backlight: support OF match

Tzung-Bi Shih
2022-03-21T08:57:07Z

For letting device tree based machines to use the driver, support OF match.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
---
Changes from v2:
- Add commit message.
- Add R-b tag.

Changes from v1:
(https://patchwork.kernel.org/project/chrome-platform/patch/20220214053646.3088298-5-tzungbi@google.com/)
- Update email address accordingly.
- Use device_get_match_data() per review comment in v1.

drivers/platform/chrome/cros_kbd_led_backlight.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/chrome/cros_kbd_led_backlight.c b/drivers/platform/chrome/cros_kbd_led_backlight.c
index 05b4f274086b..5cbe27cb4610 100644
--- a/drivers/platform/chrome/cros_kbd_led_backlight.c
+++ b/drivers/platform/chrome/cros_kbd_led_backlight.c
@@ -10,7 +10,9 @@
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/module.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
+#include <linux/property.h>
#include <linux/slab.h>

/**
@@ -127,7 +129,7 @@ static int keyboard_led_probe(struct platform_device *pdev)
const struct keyboard_led_drvdata *drvdata;
int error;

- drvdata = acpi_device_get_match_data(&pdev->dev);
+ drvdata = device_get_match_data(&pdev->dev);
if (!drvdata)
return -EINVAL;

@@ -163,10 +165,21 @@ static const struct acpi_device_id keyboard_led_acpi_match[] = {
MODULE_DEVICE_TABLE(acpi, keyboard_led_acpi_match);
#endif

+#ifdef CONFIG_OF
+static const struct of_device_id keyboard_led_of_match[] = {
+ {
+ .compatible = "google,cros-kbd-led-backlight",
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, keyboard_led_of_match);
+#endif
+
static struct platform_driver keyboard_led_driver = {
.driver = {
.name = "chromeos-keyboard-leds",
.acpi_match_table = ACPI_PTR(keyboard_led_acpi_match),
+ .of_match_table = of_match_ptr(keyboard_led_of_match),
},
.probe = keyboard_led_probe,
};
--
2.35.1.894.gb6a874cedc-goog