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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>,
Heiko Stuebner <heiko@sntech.de>, Arnd Bergmann <arnd@arndb.de>,
Liang Chen <cl@rock-chips.com>,
Linus Walleij <linus.walleij@linaro.org>,
Robin Murphy <robin.murphy@arm.com>,
Rob Herring <robh+dt@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
David Wu <david.wu@rock-chips.com>,
Finley Xiao <finley.xiao@rock-chips.com>,
William Wu <william.wu@rock-chips.com>,
Rocky Hao <rocky.hao@rock-chips.com>,
Will Deacon <will.deacon@arm.com>,
devicetree@vger.kernel.org, linux-gpio@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
"David S. Miller" <davem@davemloft.net>,
Sugar Zhang <sugar.zhang@rock-chips.com>,
linux-kernel@vger.kernel.org, Joseph Chen <chenjh@rock-chips.com>,
Mark Rutland <mark.rutland@arm.com>
Subject: [PATCH v2 0/5] Add sdmmc UHS support to ROC-RK3328-CC board.
Date: Fri, 18 May 2018 11:32:03 +0800 [thread overview]
Message-ID: <1526614328-6869-1-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.
This patch series adds a new compatible `rockchip,gpio-syscon` to
the gpio-syscon driver for general Rockchip SoC usage.
A new gpio controller named `gpio_mute` is defined in
rk3328.dtsi so that all rk3328 boards has access to it.
The ROC-RK3328-CC board use the new gpio <&gpio_mute 1> in
gpio-regulator to control the signal voltage of the sdmmc.
It is essential for UHS support which requires 1.8V signal voltage.
Many thanks to Heiko's great advice!
Changes in v2:
- Rename gpio_syscon10 to gpio_mute in doc
- Rename gpio_syscon10 to gpio_mute in rk3328.dtsi
- Rename gpio_syscon10 to gpio_mute in rk3328-roc-cc.dts
Changes in v1:
- New: allow fetching syscon from parent node in gpio-syscon driver
- Refactured for general gpio-syscon usage for Rockchip SoCs.
- Add doc rockchip,gpio-syscon.txt
- Split from V0 into small patches
- Sort dts properties in sdmmc node
Heiko Stuebner (1):
gpio: syscon: allow fetching syscon from parent node
Levin Du (4):
gpio: syscon: Add gpio-syscon for rockchip
arm64: dts: rockchip: Add gpio-mute to rk3328
arm64: dts: rockchip: Add io-domain to roc-rk3328-cc
arm64: dts: rockchip: Add sdmmc UHS support for roc-rk3328-cc
.../bindings/gpio/rockchip,gpio-syscon.txt | 41 ++++++++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts | 30 ++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3328.dtsi | 7 ++++
drivers/gpio/gpio-syscon.c | 32 +++++++++++++++++
4 files changed, 110 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/rockchip,gpio-syscon.txt
--
2.7.4
next reply other threads:[~2018-05-18 3:33 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-18 3:32 djw [this message]
2018-05-18 3:52 ` [PATCH v2 1/5] gpio: syscon: allow fetching syscon from parent node djw
2018-05-18 3:52 ` [PATCH v2 2/5] gpio: syscon: Add gpio-syscon for rockchip djw
2018-05-22 18:02 ` Rob Herring
2018-05-23 2:02 ` Levin Du
2018-05-23 14:43 ` Rob Herring
2018-05-23 15:12 ` Heiko Stübner
2018-05-23 19:53 ` Rob Herring
2018-05-24 1:59 ` Levin Du
2018-05-24 12:18 ` Heiko Stuebner
2018-05-28 3:34 ` Levin
2018-05-24 12:07 ` Heiko Stuebner
2018-05-24 13:38 ` Rob Herring
2018-05-24 8:28 ` Linus Walleij
2018-05-24 8:35 ` Heiko Stübner
2018-05-24 8:47 ` Linus Walleij
2018-05-18 3:52 ` [PATCH v2 3/5] arm64: dts: rockchip: Add gpio-mute to rk3328 djw
2018-05-18 3:52 ` [PATCH v2 4/5] arm64: dts: rockchip: Add io-domain to roc-rk3328-cc djw
2018-05-18 3:52 ` [PATCH v2 5/5] arm64: dts: rockchip: Add sdmmc UHS support for roc-rk3328-cc djw
2018-05-23 8:08 ` [PATCH v2 1/5] gpio: syscon: allow fetching syscon from parent node Linus Walleij
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