| Message ID | 20230618181740.42432-1-hdegoede@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: ad5820: Drop unsupported ad5823 from i2c_ and of_device_id tables | expand |
Hi Hans Thanks for your patch. When we added support for this we had no access to the datasheet. Regards On Sun, Jun 18, 2023 at 8:17 PM Hans de Goede <hdegoede@redhat.com> wrote: > > Fixes: b8bf73136bae ("media: ad5820: Add support for ad5821 and ad5823") > Cc: Pavel Machek <pavel@ucw.cz> > Cc: Ricardo Ribalda Delgado <ribalda@kernel.org> > Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
diff --git a/drivers/media/i2c/ad5820.c b/drivers/media/i2c/ad5820.c index 5f605b9be3b1..1543d24f522c 100644 --- a/drivers/media/i2c/ad5820.c +++ b/drivers/media/i2c/ad5820.c @@ -349,7 +349,6 @@ static void ad5820_remove(struct i2c_client *client) static const struct i2c_device_id ad5820_id_table[] = { { "ad5820", 0 }, { "ad5821", 0 }, - { "ad5823", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, ad5820_id_table); @@ -357,7 +356,6 @@ MODULE_DEVICE_TABLE(i2c, ad5820_id_table); static const struct of_device_id ad5820_of_table[] = { { .compatible = "adi,ad5820" }, { .compatible = "adi,ad5821" }, - { .compatible = "adi,ad5823" }, { } }; MODULE_DEVICE_TABLE(of, ad5820_of_table);
The supported ad5820 and ad5821 VCMs both use a single 16 bit register which is written by sending 2 bytes with the data directly after sending the i2c-client address. The ad5823 OTOH has a more typical i2c / smbus device setup with multiple 8 bit registers where the first byte send after the i2c-client address is the register address and the actual data only starts from the second byte after the i2c-client address. The ad5823 i2c_ and of_device_id-s was added at the same time as the ad5821 ids with as rationale: """ Some camera modules also refer that AD5823 is a replacement of AD5820: https://download.kamami.com/p564094-OV8865_DS.pdf """ The AD5823 may be an electrical and functional replacement of the AD5820, but from a software pov it is not compatible at all and it is going to need its own driver, drop its id from the ad5820 driver. Fixes: b8bf73136bae ("media: ad5820: Add support for ad5821 and ad5823") Cc: Pavel Machek <pavel@ucw.cz> Cc: Ricardo Ribalda Delgado <ribalda@kernel.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/media/i2c/ad5820.c | 2 -- 1 file changed, 2 deletions(-)