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From: djw@t-chip.com.cn
To: linux-rockchip@lists.infradead.org
Cc: Wayne Chou <zxf@t-chip.com.cn>, Levin Du <djw@t-chip.com.cn>,
	devicetree@vger.kernel.org, David Wu <david.wu@rock-chips.com>,
	Heiko Stuebner <heiko@sntech.de>, Liang Chen <cl@rock-chips.com>,
	William Wu <william.wu@rock-chips.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
	Rob Herring <robh+dt@kernel.org>,
	Rocky Hao <rocky.hao@rock-chips.com>,
	Will Deacon <will.deacon@arm.com>,
	Joseph Chen <chenjh@rock-chips.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	"David S. Miller" <davem@davemloft.net>
Subject: [PATCH v0 0/2] Add sdmmc UHS support to ROC-RK3328-CC board
Date: Tue,  8 May 2018 10:48:22 +0800	[thread overview]
Message-ID: <1525747704-8537-1-git-send-email-djw@t-chip.com.cn> (raw)

From: Levin Du <djw@t-chip.com.cn>

Hi all,

This is an attemp to add sdmmc UHS support to the ROC-RK3328-CC board.

It adds a new compatible `rockchip,rk3328-gpio-syscon10` to the gpio-syscon
driver,  so that a new gpio controller named `gpio_syscon10` can be defined
and used in the regulator-gpio. This regulator controls the signal voltage of the
sdmmc. It is essential for UHS support which requires 1.8V signal voltage.


Levin Du (2):
  gpio: syscon: Add gpio-syscon for rk3328
  arm64: dts: rockchip: Add sdmmc UHS support for roc-rk3328-cc

 arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts | 36 ++++++++++++++++++++++++++
 drivers/gpio/gpio-syscon.c                     | 32 +++++++++++++++++++++++
 2 files changed, 68 insertions(+)

-- 
2.7.4

             reply	other threads:[~2018-05-08  2:48 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-08  2:48 djw [this message]
2018-05-08  2:48 ` [PATCH v0 2/2] arm64: dts: rockchip: Add sdmmc UHS support for roc-rk3328-cc djw
2018-05-08 11:57   ` Heiko Stuebner

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