diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-03-23 21:17:48 +0200 |
|---|---|---|
| committer | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2017-03-23 20:33:51 +0100 |
| commit | 96962178475ae8040f40dff3a44beb9f69181421 (patch) | |
| tree | 3629b3fece6df8d36a6aa7be8ba78075650b46c7 | |
| parent | ac572452156963588b285049ba3895bef0f17642 (diff) | |
| download | linux-96962178475ae8040f40dff3a44beb9f69181421.tar.bz2 | |
leds: lp3952: Remove ACPI support for lp3952
In ACPI world any ID should be carefully chosen and registered
officially. The discussion [1] as I read it gets to wilful assignment
an ID for non-existing real DSDT example.
Rafael already told [2] how this device would be enumerated using
compatible string. To be more precise look at the possible DSDT excerpt
below:
Device (LDX0) {
Name (_HID, "PRP0001")
Name (_DDN, "TI LP3952 compatible led driver")
...
})
Name (_DSD, Package () {
ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
Package () {
Package () {"compatible", "ti,lp3952"},
...
}
})
Based on above, remove non-official ACPI IDs and enumeration from the
driver.
Note: currently driver has no compatible strings at all, to make above
working one should add at least one.
[1] https://e2e.ti.com/support/power_management/led_driver/f/192/t/524926
[2] https://www.spinics.net/lists/linux-acpi/msg67125.html
Cc: Tony Makkiel <tony.makkiel@daqri.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
| -rw-r--r-- | drivers/leds/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/leds/leds-lp3952.c | 11 |
2 files changed, 0 insertions, 12 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index e9ba04dcb7cf..8075d2ebccff 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -249,7 +249,6 @@ config LEDS_LP3952 tristate "LED Support for TI LP3952 2 channel LED driver" depends on LEDS_CLASS depends on I2C - depends on ACPI depends on GPIOLIB select REGMAP_I2C help diff --git a/drivers/leds/leds-lp3952.c b/drivers/leds/leds-lp3952.c index 4847e89883a7..5184436b8905 100644 --- a/drivers/leds/leds-lp3952.c +++ b/drivers/leds/leds-lp3952.c @@ -10,7 +10,6 @@ * */ -#include <linux/acpi.h> #include <linux/delay.h> #include <linux/gpio.h> #include <linux/i2c.h> @@ -276,19 +275,9 @@ static const struct i2c_device_id lp3952_id[] = { }; MODULE_DEVICE_TABLE(i2c, lp3952_id); -#ifdef CONFIG_ACPI -static const struct acpi_device_id lp3952_acpi_match[] = { - {"TXNW3952", 0}, - {} -}; - -MODULE_DEVICE_TABLE(acpi, lp3952_acpi_match); -#endif - static struct i2c_driver lp3952_i2c_driver = { .driver = { .name = LP3952_NAME, - .acpi_match_table = ACPI_PTR(lp3952_acpi_match), }, .probe = lp3952_probe, .remove = lp3952_remove, |