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From: Chuanhong Guo <gch981213@gmail.com>
To: linux-mediatek@lists.infradead.org, linux-spi@vger.kernel.org,
	linux-mtd@lists.infradead.org, devicetree@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Richard Weinberger <richard@nod.at>,
	Mark Brown <broonie@kernel.org>,
	linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Chuanhong Guo <gch981213@gmail.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/2] rewrite mtk-quadspi spi-nor driver with spi-mem
Date: Sat, 15 Feb 2020 14:58:24 +0800
Message-ID: <20200215065826.739102-1-gch981213@gmail.com> (raw)

This patchset adds a spi-mem driver for Mediatek SPI-NOR controller,
which already has limited support by mtk-quadspi. For benefits of
this replacement, please check commit message of the 1st patch.

To keep patchset small for easier reviewing, there will be 3 patchsets
including this one.
1. add the new driver, which is this patchset.
2. update existing dts for the new driver:
   spi-max-frequency is missing in current mtk-quadspi binding. Old
   driver parses child node manually so it doesn't need this, but
   new spi-mem driver is probed via spi subsystem which requires the
   presence of spi-max-frequency. Since this doesn't break old driver
   support, I'll send this separately as a standalone patch.
3. removing the old driver. I'll create this commit after 1 and 2 are
   applied to avoid possible rebasing due to any changes in the old
   driver.

Chuanhong Guo (2):
  spi: add support for mediatek spi-nor controller
  dt-bindings: convert mtk-quadspi binding doc for spi-mtk-nor

 .../mtk-quadspi.txt => spi/spi-mtk-nor.txt}   |  34 +-
 drivers/spi/Kconfig                           |  10 +
 drivers/spi/Makefile                          |   1 +
 drivers/spi/spi-mtk-nor.c                     | 689 ++++++++++++++++++
 4 files changed, 715 insertions(+), 19 deletions(-)
 rename Documentation/devicetree/bindings/{mtd/mtk-quadspi.txt => spi/spi-mtk-nor.txt} (62%)
 create mode 100644 drivers/spi/spi-mtk-nor.c

-- 
2.24.1


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Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-15  6:58 Chuanhong Guo [this message]
2020-02-15  6:58 ` [PATCH 1/2] spi: add support for mediatek spi-nor controller Chuanhong Guo
2020-02-15  6:58 ` [PATCH 2/2] dt-bindings: convert mtk-quadspi binding doc for spi-mtk-nor Chuanhong Guo
2020-02-18 12:55 ` [PATCH 0/2] rewrite mtk-quadspi spi-nor driver with spi-mem Mark Brown
2020-02-19 23:58   ` Chuanhong Guo
2020-02-20 19:51     ` Mark Brown
2020-02-25 17:31     ` Rob Herring
2020-02-26  1:31       ` Chuanhong Guo
2020-02-26 11:36         ` Mark Brown

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