From mboxrd@z Thu Jan 1 00:00:00 1970 From: pankaj.dubey@samsung.com (Pankaj Dubey) Date: Tue, 07 Oct 2014 13:23:19 +0530 Subject: [PATCH v3 0/2] Handle reboot for Exynos SoC via restart_handler Message-ID: <1412668401-21837-1-git-send-email-pankaj.dubey@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch removes restart hook from machine_desc of Exynos, and moves respective code into reboot_notifiers. Exynos5440 handles reboot via clock register so let's register a restart_handler in Exynos5440 clock driver. For rest Exynos SoC, reboot is handled via PMU SWRESET register so let's register a restart_handler in PMU driver for handling this. This patch is inspired and dependent on following patch series[1] from Geunter Roeck. Also this patch is dependent on PMU platform driver patch [2] by me, and has been prepared on top of it. [1]: kernel: Add support for kernel restart handler call chain https://lkml.org/lkml/2014/8/19/652 [2]: ARM: Exynos: Convert PMU implementation into a platform driver https://lkml.org/lkml/2014/10/6/89 I have tested reboot functionality on Exynos3250 based board, on kgene/for-next as well as linux-next's next-20140925 tag. Patch v2 and related discussion can be found here http://www.spinics.net/lists/linux-samsung-soc/msg37457.html Changes since v2: - Used register_restart_handler instead of register_reboot_notifier. - Updated notifier names and commit message accordingly. Changes since v1: - Addressed review comments from Tomasz Figa. Removed usage of local variables where ever unnecessary. - Make reg_base as global in clk-exynos5440.c file, to avoid iomapping it again in reboot_notifier handler. Pankaj Dubey (2): clk: samsung: exynos5440: move restart code into clock driver ARM: EXYNOS: PMU: move restart code into pmu driver arch/arm/mach-exynos/common.h | 1 - arch/arm/mach-exynos/exynos.c | 23 ----------------------- arch/arm/mach-exynos/pmu.c | 24 ++++++++++++++++++++++++ drivers/clk/samsung/clk-exynos5440.c | 29 ++++++++++++++++++++++++++++- 4 files changed, 52 insertions(+), 25 deletions(-) -- 1.7.9.5