From mboxrd@z Thu Jan 1 00:00:00 1970 From: djw@t-chip.com.cn Subject: [PATCH v0 0/2] Add sdmmc UHS support to ROC-RK3328-CC board Date: Tue, 8 May 2018 10:48:22 +0800 Message-ID: <1525747704-8537-1-git-send-email-djw@t-chip.com.cn> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: linux-rockchip@lists.infradead.org Cc: Wayne Chou , Levin Du , devicetree@vger.kernel.org, David Wu , Heiko Stuebner , Liang Chen , William Wu , Linus Walleij , linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Rob Herring , Rocky Hao , Will Deacon , Joseph Chen , Mark Rutland , Catalin Marinas , linux-arm-kernel@lists.infradead.org, "David S. Miller" List-Id: devicetree@vger.kernel.org From: Levin Du 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