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From: Julius Werner <jwerner@chromium.org>
To: Xingyu Chen <xingyu.chen@amlogic.com>
Cc: Evan Benn <evanbenn@chromium.org>,
	Julius Werner <jwerner@chromium.org>,
	Guenter Roeck <linux@roeck-us.net>, Rob Herring <robh@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	devicetree@vger.kernel.org,
	"David S. Miller" <davem@davemloft.net>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
	Wim Van Sebroeck <wim@linux-watchdog.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-watchdog@vger.kernel.org,
	Jianxin Pan <jianxin.pan@amlogic.com>,
	Yonghui Yu <yonghui.yu@amlogic.com>
Subject: Re: [PATCH 1/2] dt-bindings: watchdog: Add arm,smc-wdt watchdog arm,smc-wdt compatible
Date: Fri, 21 Feb 2020 11:41:47 -0800
Message-ID: <CAODwPW94KX46PzSrf_uuEFPKudXor=26d=g3Qta5veRfxmMDUA@mail.gmail.com> (raw)
In-Reply-To: <e42320b8-266f-0b0e-b20b-b72228510e81@amlogic.com>

> Because the ATF does not define standard wdt index, each vendor defines
> its own index.
> So I don't think that the current driver[0] can fully cover my usecases.

I think the best way to solve this would be to put the SMC function ID
as another field into the device tree, so that multiple vendors could
share the same driver even if their firmware interface uses a
different SMC. But they still have to implement the same API for that
SMC, of course, not sure if the Meson driver is suitable for that (but
if it is then I think merging those drivers would be a good idea).

  reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-14  6:26 [PATCH 0/2] Add a watchdog driver that uses ARM Secure Monitor Calls Evan Benn
2020-02-14  6:26 ` [PATCH 1/2] dt-bindings: watchdog: Add arm,smc-wdt watchdog arm,smc-wdt compatible Evan Benn
2020-02-19 22:30   ` Rob Herring
2020-02-19 23:04     ` Julius Werner
2020-02-19 23:20       ` Guenter Roeck
2020-02-20  6:41         ` Evan Benn
2020-02-20 15:43           ` Guenter Roeck
2020-02-21 15:36           ` Xingyu Chen
2020-02-21 19:41             ` Julius Werner [this message]
2020-02-21 20:46               ` Guenter Roeck
2020-02-22  4:01               ` Xingyu Chen
2020-02-24  1:10                 ` Evan Benn
2020-02-25  1:23                 ` Julius Werner
2020-02-25  7:44                   ` Xingyu Chen
2020-03-10  1:00                     ` Evan Benn
     [not found]                       ` <ad28aa47-0490-937f-898f-0e4695ef6ec6@amlogic.com>
2020-03-11 19:24                         ` Julius Werner
2020-03-13 16:13                           ` Xingyu Chen
2020-02-14  6:26 ` [PATCH 2/2] watchdog: Add new arm_smc_wdt watchdog driver Evan Benn
2020-02-14  9:35   ` Enric Balletbo Serra
2020-02-14 14:10   ` Guenter Roeck
2020-02-14 21:32     ` Julius Werner
2020-02-15  1:39       ` Evan Benn
2020-02-20  6:50     ` Evan Benn
2020-02-20 15:52       ` Guenter Roeck

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