From: Andre Przywara <andre.przywara-5wv7dgnIgG8@public.gmane.org>
To: Maxime Ripard <maxime.ripard-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>
Cc: Thierry Reding
<thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>,
linux-pwm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 3/5] pwm: sun4i: Introduce (optional) reset support
Date: Tue, 13 Mar 2018 14:05:34 +0000 [thread overview]
Message-ID: <f001134a-987d-2491-a22e-d1d634f7b024@arm.com> (raw)
In-Reply-To: <20180307074516.dbak7ztkua4p7mr5-ZC1Zs529Oq4@public.gmane.org>
Hi Maxime,
thanks for looking into this and for the Acks!
On 07/03/18 07:45, Maxime Ripard wrote:
> On Wed, Mar 07, 2018 at 02:07:17AM +0000, Andre Przywara wrote:
>> While the PWM IP in the Allwinner H6 SoC is fully compatible to those
>> used in older SoCs (H3, A64), it features a dedicated reset line which
>> needs to be de-asserted.
>> Add support for an optional "resets" DT property in our pwm-sun4i probe
>> routine, and assert and de-assert the reset line, where needed.
>> This allows to enable PWM support on the H6.
>
> This isn't optional then. It's mandatory on the H6, and unneeded on
> everything else. This is what we should have.
So are you aiming at:
if (of_device_is_compatible(np, "allwinner,sun50i-h6-pwm")) {
... devm_reset_control_get() ...
I guess this is preferable over coding something based on a new member
in struct sun4i_pwm_data?
Cheers,
Andre.
next prev parent reply other threads:[~2018-03-13 14:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-07 2:07 [PATCH 0/5] drivers: pwm: sun4i: Improve support for A64 and H6 SoCs Andre Przywara
[not found] ` <20180307020719.6675-1-andre.przywara-5wv7dgnIgG8@public.gmane.org>
2018-03-07 2:07 ` [PATCH 1/5] pwm: sun4i: drop unused .has_rdy member Andre Przywara
2018-03-07 7:40 ` Maxime Ripard
2018-03-07 2:07 ` [PATCH 2/5] pwm: sun4i: simplify controller mapping Andre Przywara
2018-03-07 7:44 ` Maxime Ripard
2018-03-07 2:07 ` [PATCH 3/5] pwm: sun4i: Introduce (optional) reset support Andre Przywara
2018-03-07 7:45 ` Maxime Ripard
[not found] ` <20180307074516.dbak7ztkua4p7mr5-ZC1Zs529Oq4@public.gmane.org>
2018-03-13 14:05 ` Andre Przywara [this message]
2018-03-13 15:32 ` Maxime Ripard
2018-03-07 2:07 ` [PATCH 4/5] dt-bindings: pwm: sunxi: add new compatible strings Andre Przywara
[not found] ` <20180307020719.6675-5-andre.przywara-5wv7dgnIgG8@public.gmane.org>
2018-03-08 2:08 ` Rob Herring
2018-03-08 9:09 ` Andre Przywara
[not found] ` <9431a141-8b9c-9743-0907-8f0720df34a2-5wv7dgnIgG8@public.gmane.org>
2018-03-08 14:37 ` Rob Herring
[not found] ` <CAL_Jsq+e8uRm0gi1dn3Ln-b37SC9WGw5aWPaBKoRA2vi-==j6A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-03-08 15:27 ` Andre Przywara
2018-03-07 2:07 ` [PATCH 5/5] dts: sunxi: A64: Add PWM controllers Andre Przywara
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