From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Liang Yang <liang.yang@amlogic.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
linux-mtd@lists.infradead.org
Cc: Rob Herring <robh@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Jerome Brunet <jbrunet@baylibre.com>,
Neil Armstrong <narmstrong@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Kevin Hilman <khilman@baylibre.com>,
Jianxin Pan <jianxin.pan@amlogic.com>,
Victor Wan <victor.wan@amlogic.com>,
XianWei Zhao <xianwei.zhao@amlogic.com>,
Kelvin Zhang <kelvin.zhang@amlogic.com>,
BiChao Zheng <bichao.zheng@amlogic.com>,
YongHui Yu <yonghui.yu@amlogic.com>,
linux-arm-kernel@lists.infradead.org,
linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH v9 1/5] dt-bindings: nand: meson: fix meson nfc clock
Date: Tue, 20 Sep 2022 10:33:32 +0200 [thread overview]
Message-ID: <20220920083332.600982-1-miquel.raynal@bootlin.com> (raw)
In-Reply-To: <20220907080405.28240-2-liang.yang@amlogic.com>
On Wed, 2022-09-07 at 08:04:01 UTC, Liang Yang wrote:
> EMMC and NAND have the same clock control register named 'SD_EMMC_CLOCK'
> which is defined in EMMC port internally. bit0~5 of 'SD_EMMC_CLOCK' is
> the divider and bit6~7 is the mux for fix pll and xtal. At the beginning,
> a common MMC and NAND sub-clock was discussed and planed to be implemented
> as NFC clock provider, but now this series of patches of a common MMC and
> NAND sub-clock are never being accepted and the current binding was never
> valid. the reasons for giving up are:
> 1. EMMC and NAND, which are mutually exclusive anyway
> 2. coupling the EMMC and NAND.
> 3. it seems that a common MMC and NAND sub-clock is over engineered.
> and let us see the link fot more information:
> https://lore.kernel.org/all/20220121074508.42168-5-liang.yang@amlogic.com
> so The meson nfc can't work now, let us rework the clock.
>
> Acked-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Liang Yang <liang.yang@amlogic.com>
Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.
Miquel
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next prev parent reply other threads:[~2022-09-20 8:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-07 8:04 [PATCH v9 0/5] fix the meson NFC clock Liang Yang
2022-09-07 8:04 ` [PATCH v9 1/5] dt-bindings: nand: meson: fix meson nfc clock Liang Yang
2022-09-20 8:33 ` Miquel Raynal [this message]
2022-09-07 8:04 ` [PATCH v9 2/5] mtd: rawnand: meson: fix the clock Liang Yang
2022-09-20 8:33 ` Miquel Raynal
2022-09-07 8:04 ` [PATCH v9 3/5] mtd: rawnand: meson: refine resource getting in probe Liang Yang
2022-09-20 8:33 ` Miquel Raynal
2022-09-07 8:04 ` [PATCH v9 4/5] dt-bindings: nand: meson: convert txt to yaml Liang Yang
2022-09-12 20:31 ` Rob Herring
2022-09-20 8:33 ` Miquel Raynal
2022-09-07 8:04 ` [PATCH v9 5/5] mtd: rawnand: meson: not support legacy clock Liang Yang
2022-09-20 8:33 ` Miquel Raynal
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