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SubjectRe: [PATCH 0/4] gpio: dwapb: Fix reference clocks usage
On Thu, Mar 12, 2020 at 02:58:33PM +0100, Linus Walleij wrote:
> On Fri, Mar 6, 2020 at 2:25 PM <Sergey.Semin@baikalelectronics.ru> wrote:
>
> > From: Serge Semin <fancer.lancer@gmail.com>
> >
> > There is no need in any fixes to have the Baikal-T1 SoC DW GPIO controllers
> > supported by the kernel DW APB GPIO driver. It works for them just fine with
> > no modifications. But still there is a room for optimizations there.
> >
> > First of all as it tends to be traditional for all Baikal-T1 SoC related
> > patchset we replaced the legacy plain text-based dt-binding file with
> > yaml-based one. Baikal-T1 DW GPIO port A supports a debounce functionality,
> > but in order to use it the corresponding reference clock must be enabled.
> > We added support of that clock in the driver and made sure the dt-bindings
> > had its declaration. In addition seeing both APB and debounce reference
> > clocks are optional, we replaced the standard devm_clk_get() usage with
> > the function of optional clocks acquisition.
> >
> > This patchset is rebased and tested on the mainline Linux kernel 5.6-rc4:
> > commit 98d54f81e36b ("Linux 5.6-rc4").
> >
> > Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
> > Signed-off-by: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
> > Cc: Maxim Kaurkin <Maxim.Kaurkin@baikalelectronics.ru>
> > Cc: Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>
> > Cc: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru>
> > Cc: Ekaterina Skachko <Ekaterina.Skachko@baikalelectronics.ru>
> > Cc: Vadim Vlasov <V.Vlasov@baikalelectronics.ru>
> > Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> > Cc: Paul Burton <paulburton@kernel.org>
> > Cc: Ralf Baechle <ralf@linux-mips.org>
> > Cc: Hoan Tran <hoan@os.amperecomputing.com>
> > Cc: Linus Walleij <linus.walleij@linaro.org>
> > Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> > Cc: Philipp Zabel <p.zabel@pengutronix.de>
> > Cc: Rob Herring <robh+dt@kernel.org>
> > Cc: Mark Rutland <mark.rutland@arm.com>
> > Cc: linux-gpio@vger.kernel.org
> > Cc: devicetree@vger.kernel.org
> > Cc: linux-kernel@vger.kernel.org
>
> I like these patches, once Rob is happy with the bindings I'll be
> happy to merge them. I haven't heard from Hoan Tran in a while,
> so if we don't hear from him this time either I would suggest you
> also add yourself as maintainer for this driver, if you don't mind.
>
> Thanks,
> Linus Walleij

Hello Linus,
Thanks for positive response. I'll resend the patchset soon in the
email-threaded form together with two extra patches, which will
add me to the MAINTAINERS list and to the dt-schema of the driver.
If Hoan Tran will show up before you merge them, just drop these two
new patches.

Regards,
-Sergey

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