Re: [PATCH 4/4] leds: Replace dedicated SN3218 driver with IS31FL32XX driver

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On Wed, Mar 02, 2016 at 10:01:35PM -0500, David Rivshin (Allworx) wrote:
> From: David Rivshin <drivshin@xxxxxxxxxxx>
> 
> Si-En Technology was acquired by ISSI in 2011, and it appears that
> the IS31FL3218/IS31FL3216 are just rebranded SN3218/SN3216 devices.
> As the IS31FL32XX driver already handles the *3218 devices, there
> is no longer a need for the dedicated SN3218 driver.
> 
> Add the "sn,sn3218" and "sn,sn3216" compatible strings into the
> IS31FL32XX driver and binding documentation, and remove the
> leds-sn3218 driver.
> 
> Datasheets:
>     IS31FL3218: http://www.issi.com/WW/pdf/31FL3218.pdf
>     SN3218:     http://www.si-en.com/uploadpdf/s2011517171720.pdf
> 
>     IS31FL3216: http://www.issi.com/WW/pdf/31FL3216.pdf
>     SN3216;     http://www.si-en.com/uploadpdf/SN3216201152410148.pdf
> 
> Signed-off-by: David Rivshin <drivshin@xxxxxxxxxxx>
> ---
> 
> Note that the leds-sn3218 binding use a 0-based 'reg' property, while
> the leds-is31fl32xx binding uses a 1-based 'reg' property. This seemed
> to be the preferred binding based on [1]. Since leds-sn3216 has not been
> in a released kernel, there is are no backwards-compatibility concerns.

It would probably make more sense to revert the sn3216 driver/binding 
and add the additions to the previous patches. Doesn't matter to me 
though.

Acked-by: Rob Herring <robh@xxxxxxxxxx>

> 
> Changes from RFC:
>  new
> 
> [1] http://www.spinics.net/lists/linux-leds/msg05589.html
> 
>  .../devicetree/bindings/leds/leds-is31fl32xx.txt   |   9 +-
>  .../devicetree/bindings/leds/leds-sn3218.txt       |  41 ---
>  drivers/leds/Kconfig                               |  18 +-
>  drivers/leds/Makefile                              |   1 -
>  drivers/leds/leds-is31fl32xx.c                     |   6 +-
>  drivers/leds/leds-sn3218.c                         | 306 ---------------------
>  6 files changed, 14 insertions(+), 367 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/leds/leds-sn3218.txt
>  delete mode 100644 drivers/leds/leds-sn3218.c
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