linux-kernel - Re: [PATCH v4 0/6] GPIO & Hierarchy IRQ support for HiFive Unleashed

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Message-ID: <mhng-cb360722-bdb6-4cf7-9fa7-1d92f6b6bbfa@palmerdabbelt-glaptop1>
Date:   Wed, 29 Jan 2020 07:00:19 -0800 (PST)
From:   Palmer Dabbelt <palmerdabbelt@...gle.com>
To:     maz@...nel.org
CC:     yash.shah@...ive.com, linus.walleij@...aro.org,
        bgolaszewski@...libre.com, robh+dt@...nel.org,
        mark.rutland@....com, Paul Walmsley <paul.walmsley@...ive.com>,
        aou@...s.berkeley.edu, tglx@...utronix.de, jason@...edaemon.net,
        bmeng.cn@...il.com, Atish Patra <Atish.Patra@....com>,
        sagar.kadam@...ive.com, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, sachin.ghadi@...ive.com
Subject:     Re: [PATCH v4 0/6] GPIO & Hierarchy IRQ support for HiFive Unleashed

On Mon, 20 Jan 2020 09:09:51 GMT (+0000), maz@...nel.org wrote:
> On 2019-12-10 12:11, Yash Shah wrote:
>> This patch series adds GPIO drivers, DT documentation and DT nodes for
>> HiFive Unleashed board. The gpio patches are mostly based on Wesley's
>> patch.
>> The patchset also adds hierarchy irq domain support as it is required
>> by this
>> gpio driver. It also includes the irqdomain patch to introduce
>> irq_domain_translate_onecell() and irq-nvic driver patch to use this
>> newly
>> introduced function.
>>
>> This patchset is based on Linux 5.4-rc6 and tested on HiFive Unleashed
>> board
>>
>> Changes:
>> v4 vs v3:
>> - Rename the DT yaml document to more standard naming
>> (sifive,gpio.yaml)
>> - Drop "clock-names" property from yaml document
>> - Add "minItems" to "interrupts" node in yaml
>>
>> v3 vs v2:
>> - Include patch for irq-nvic driver to use irq_domain_translate_onecell
>> - Remove unnecessary inclusion of header files
>> - Use a single prefix for all symbols in this driver
>> - Rename the "enabled" field of struct sifive_gpio to "irq_state"
>> - Remove unused variables and locking from probe()
>> - Other minor changes
>>
>> v2 vs v1:
>> - Add patch to introduce irq_domain_translate_onecell() and use it in
>>   the sifive PLIC driver
>> - Drop the usage of own locks, instead use internal bgpio_locks
>> - Consistently use regmap for register access throughout the gpio code
>> - Convert the GPIO DT documentation into a json schema
>> - Other minor changes based upon feedback received on v1
>>
>> v1 vs RFC:
>> Incorporated below changes as suggested by Linus Walleij on RFC version
>> of this
>> patchset[0]
>> - Dropped PWM patches as they are already merged.
>> - Include "GPIO_GENERIC" and "REGMAP_MMIO" in Kconfig select option
>> - Remove unwanted inclusion of header files
>> - Use regmap MMIO instead of customised sifive_assign_bit()
>> - Use GPIOLIB_GENERIC and bgpio_init() to set up the accessors
>> - Use hierarchical irqdomain
>>
>> [0]
>> https://lore.kernel.org/linux-riscv/20181010123519.RVexDppaPFpIWl7QU_hpP8tc5qqWPJgeuLYn0FaGbeQ@z/
>>
>> Yash Shah (6):
>>   genirq: introduce irq_domain_translate_onecell
>>   irqchip: nvic: Use irq_domain_translate_onecell instead of custom
>> func
>>   irqchip: sifive: Support hierarchy irq domain
>>   gpio: sifive: Add DT documentation for SiFive GPIO
>>   gpio: sifive: Add GPIO driver for SiFive SoCs
>>   riscv: dts: Add DT support for SiFive FU540 GPIO driver
>
> I've queued the first 5 patches. The last one should go via the
> corresponding platform tree.

Thanks, I'd missed this one.

>
> Thanks,
>
>          M.