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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Maxime Ripard <maxime@cerno.tech>
Cc: "Arnd Bergmann" <arnd@arndb.de>, "Guo Ren" <guoren@kernel.org>,
	"Randy Dunlap" <rdunlap@infradead.org>,
	"Anup Patel" <anup.patel@wdc.com>,
	"Atish Patra" <atish.patra@wdc.com>,
	"Palmer Dabbelt" <palmerdabbelt@google.com>,
	"Christoph Müllner" <christoph.muellner@vrull.eu>,
	philipp.tomsich@vrull.eu, "Christoph Hellwig" <hch@lst.de>,
	liush <liush@allwinnertech.com>,
	wefu@redhat.com, "Wei Wu (吴伟)" <lazyparser@gmail.com>,
	"Drew Fustini" <drew@beagleboard.org>,
	linux-riscv <linux-riscv@lists.infradead.org>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	taiten.peng@canonical.com, aniket.ponkshe@canonical.com,
	heinrich.schuchardt@canonical.com, gordan.markus@canonical.com,
	"Guo Ren" <guoren@linux.alibaba.com>,
	"Chen-Yu Tsai" <wens@csie.org>
Subject: Re: [RFC PATCH V4 6/6] riscv: soc: Add Allwinner SoC kconfig option
Date: Tue, 14 Sep 2021 14:09:58 +0200	[thread overview]
Message-ID: <c9b18cf8-d432-8636-52f5-a40a342135fe@kernel.org> (raw)
In-Reply-To: <20210914101327.47baun6mop3mc56j@gilmour>

On 14/09/2021 12:13, Maxime Ripard wrote:
> On Tue, Sep 14, 2021 at 12:07:08PM +0200, Krzysztof Kozlowski wrote:
>> On Tue, 14 Sept 2021 at 11:31, Arnd Bergmann <arnd@arndb.de> wrote:
>>> Some subsystem maintainers want drivers to be selected by the SoC
>>> option, this is why you need the 'select SIFIVE_PLIC', but usually
>>> the drivers are selectable with a 'depends on ARCH_SUNXI ||
>>> COMPILE_TEST' and enabled in the defconfig.
>>
>> I would say selecting drivers is even more useful for distros and
>> other downstream users. Especially in the ARM world where we have so
>> many different SoCs - how could a distro person know which driver is
>> necessary, important or useful? Having all main SoC drivers enabled
>> when ARCH_SUNXI=y, helps distro a lot.
> 
> Imply, maybe, but select is far too painful for everyone else.

If we talk about UART driver, then sure - imply makes sense. But if we
talk about core SoC components necessary for boot (e.g. timers, clocks,
pinctrl), then select is appropriate. There is no point to enable
ARCH_XXX without these core components.


Best regards,
Krzysztof

  reply	other threads:[~2021-09-14 12:10 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-11  9:21 [RFC PATCH V4 0/6] riscv: Add PBMT & DMA for D1 bringup guoren
2021-09-11  9:21 ` [RFC PATCH V4 1/6] riscv: pgtable: Add custom protection_map init guoren
2021-09-15  7:45   ` Christoph Hellwig
2021-09-15 23:52     ` Guo Ren
2021-09-11  9:21 ` [RFC PATCH V4 2/6] riscv: errata: pgtable: Add custom Svpbmt supported for Allwinner D1 guoren
2021-09-15  7:47   ` Christoph Hellwig
2021-09-16  0:48     ` Guo Ren
2021-09-16  7:31   ` Atish Patra
2021-09-11  9:21 ` [RFC PATCH V4 3/6] RISC-V: Support a new config option for non-coherent DMA guoren
2021-09-15  7:48   ` Christoph Hellwig
2021-09-16  1:20     ` Guo Ren
2021-09-16  4:39       ` Atish Patra
2021-09-16  6:09         ` Guo Ren
2021-09-11  9:21 ` [RFC PATCH V4 4/6] RISC-V: Implement arch_sync_dma* functions guoren
2021-09-15  7:50   ` Christoph Hellwig
2021-09-16  1:32     ` Guo Ren
2021-09-16  4:24       ` Anup Patel
2021-09-16  4:42         ` Atish Patra
2021-09-11  9:21 ` [RFC PATCH V4 5/6] riscv: errata: Support T-HEAD custom dcache ops guoren
2021-09-11  9:21 ` [RFC PATCH V4 6/6] riscv: soc: Add Allwinner SoC kconfig option guoren
2021-09-13  8:45   ` Maxime Ripard
2021-09-13  9:20     ` Guo Ren
2021-09-13 18:48       ` Randy Dunlap
2021-09-14  2:34         ` Guo Ren
2021-09-14  3:06           ` Randy Dunlap
2021-09-14  5:16             ` Anup Patel
2021-09-14  5:20               ` Randy Dunlap
2021-09-14  9:29           ` Arnd Bergmann
2021-09-14 10:07             ` Krzysztof Kozlowski
2021-09-14 10:13               ` Maxime Ripard
2021-09-14 12:09                 ` Krzysztof Kozlowski [this message]
2021-09-14 13:02                   ` Arnd Bergmann
2021-09-16  6:37             ` Guo Ren
2021-09-14  3:49     ` Heinrich Schuchardt
2021-09-14  5:16       ` Samuel Holland
2021-09-14  6:30         ` Heinrich Schuchardt
2021-09-14  7:20       ` Maxime Ripard
2021-09-14  9:26     ` Ben Dooks

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