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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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