RE: [PATCHv2 0/4] FTM PWM adds regmap and endianness support.

[Li.Xiubo@xxxxxxxxxxxxx]

Thierry,

Ping:)



> -----Original Message-----
> From: Xiubo Li [mailto:Li.Xiubo@xxxxxxxxxxxxx]
> Sent: Tuesday, April 29, 2014 11:34 AM
> To: thierry.reding@xxxxxxxxx; linux-pwm@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx; Xiubo Li-B47053
> Subject: [PATCHv2 0/4] FTM PWM adds regmap and endianness support.
> 
> Convert to direct regmap API usage. Since the regmap core has already
> support rich endianness modes of device, this patch convert to direct
> regmap API usage, preparing to support big endianness for LS1 SoC.
> 
> Using the regmag framework will be more easy to support the endiannesses
> switching of one same device driver on different SoCs.
> 
> The endianness scenarios are:
> SoC     |  CPU   | FTM-PWM | 'big-endian' property is needed?
> --------|--------|---------|---------------------------------
> Vybird  |  LE    |   LE    |     No
> LS1     |  LE    |   BE    |     Yes
> LS2     |  LE    |   LE    |     No
> 
> 
> 
> Changes in V2:
> - Adds detail descriptions of these patches.
> 
> 
> Xiubo Li (4):
>   Documentation: Add 'big-endian' property for FTM PWM.
>   pwm: ftm-pwm: Clean up the code.
>   pwm: ftm-pwm: Convert to direct regmap API usage.
>   pwm: ftm-pwm: Add big-endian support
> 
>  .../devicetree/bindings/pwm/pwm-fsl-ftm.txt        | 12 ++-
>  drivers/pwm/pwm-fsl-ftm.c                          | 96 ++++++++++++---------
> -
>  2 files changed, 64 insertions(+), 44 deletions(-)
> 
> --
> 1.8.4

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