From mboxrd@z Thu Jan 1 00:00:00 1970 From: Philipp Zabel Subject: [PATCH v6 0/8] Reset controller API to reset IP modules on i.MX5 and i.MX6 Date: Thu, 28 Mar 2013 17:35:15 +0100 Message-ID: <1364488523-20310-1-git-send-email-p.zabel@pengutronix.de> Return-path: Sender: linux-pm-owner@vger.kernel.org To: linux-arm-kernel@lists.infradead.org, Arnd Bergmann Cc: Greg Kroah-Hartman , Stephen Warren , Marek Vasut , Fabio Estevam , Sascha Hauer , Shawn Guo , kernel@pengutronix.de, devicetree-discuss@lists.ozlabs.org, Mike Turquette , Len Brown , Pavel Machek , "Rafael J. Wysocki" , linux-pm@vger.kernel.org List-Id: devicetree@vger.kernel.org [Added Arnd and Greg to the recipients] I think the first three patches of this series are candidates to go through Arnd's tree. Arnd, would you take those patches? [PATCH v6 1/8] dt: describe base reset signal binding [PATCH v6 2/8] reset: Add reset controller API [PATCH v6 3/8] reset: Add driver for gpio-controlled reset pins The system reset controller (SRC) on i.MX51, i.MX53, and i.MX6q controls reset lines to the GPU, VPU, IPU, and OpenVG IP modules. The following patches add a simple API for devices to request being reset by separate reset controller hardware and implements the reset signal device tree binding proposed by Stephen Warren. Contrary to Tegra hardware, the i.MX SRC contains self-deasserting reset registers, so I've included both ops to manually assert/deassert a reset line, as well as a "reset" operation that is supposed to assert the reset line and wait for it to deassert. The i.MX SRC is enhanced to provide a reset controller and the IPU driver is made to request being reset by calling the device_reset(&pdev->dev) convenience wrapper during probing. No changes since v5, I just reordered the series. regards Philipp --- .../devicetree/bindings/reset/fsl,imx-src.txt | 49 ++++ .../devicetree/bindings/reset/gpio-reset.txt | 37 +++ Documentation/devicetree/bindings/reset/reset.txt | 75 ++++++ .../bindings/staging/imx-drm/fsl-imx-drm.txt | 3 + arch/arm/boot/dts/imx51.dtsi | 7 + arch/arm/boot/dts/imx53.dtsi | 7 + arch/arm/boot/dts/imx6q.dtsi | 1 + arch/arm/boot/dts/imx6qdl.dtsi | 4 +- arch/arm/mach-imx/Kconfig | 3 + arch/arm/mach-imx/mm-imx5.c | 2 + arch/arm/mach-imx/src.c | 69 ++++- drivers/Kconfig | 2 + drivers/Makefile | 3 + drivers/reset/Kconfig | 26 ++ drivers/reset/Makefile | 2 + drivers/reset/core.c | 297 +++++++++++++++++++++ drivers/reset/gpio-reset.c | 208 +++++++++++++++ drivers/staging/imx-drm/ipu-v3/ipu-common.c | 12 +- include/linux/reset-controller.h | 51 ++++ include/linux/reset.h | 17 ++ 20 files changed, 870 insertions(+), 5 deletions(-)