[PATCH 1/3] dt-bindings: pwm: Add MediaTek display PWM bindings
matthias.bgg at gmail.com
Fri Jun 3 08:03:53 PDT 2016
On 03/06/16 08:45, weiqing kong wrote:
> On Thu, 2016-06-02 at 17:45 -0500, Rob Herring wrote:
>> On Mon, May 30, 2016 at 04:41:50PM +0800, Weiqing Kong wrote:
>>> Add MT2701 compatible string.
>>> Signed-off-by: Weiqing Kong <weiqing.kong at mediatek.com>
>>> Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt | 5 +++--
>>> 1 file changed, 3 insertions(+), 2 deletions(-)
>>> diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
>>> index f8f59ba..f2f2fa9 100644
>>> --- a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
>>> +++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
>>> @@ -1,9 +1,10 @@
>>> MediaTek display PWM controller
>>> Required properties:
>>> - - compatible: should be "mediatek,<name>-disp-pwm":
>>> - - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
>>> + - compatible: should be like these:
>>> + - "mediatek,mt2701-disp-bls": found on mt2701 SoC.
>> Why bls instead of pwm?
> In mt6595/mt8173, we have a hardware module named pwm.
> In mt2701, we have bls hardware module which includes disp pwm function,
> so we named it mt2701-disp-bls rather than mt2701-disp-pwm in order to
> match with hardware spec.
From what I understand pwm module and disp pwm in mt6589/mt8173 is
independent from the disp pwm. Actually the disp pwm in mt6589 is part
of the bls module, so this should me mediatek,mt2701-disp-pwm as well
>>> - "mediatek,mt6595-disp-pwm": found on mt6595 SoC.
>>> + - "mediatek,mt8173-disp-pwm": found on mt8173 SoC.
>>> - reg: physical base address and length of the controller's registers.
>>> - #pwm-cells: must be 2. See pwm.txt in this directory for a description of
>>> the cell format.
More information about the linux-arm-kernel