From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753929AbcKCO3d (ORCPT ); Thu, 3 Nov 2016 10:29:33 -0400 Received: from mail-wm0-f54.google.com ([74.125.82.54]:37759 "EHLO mail-wm0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751199AbcKCO3c (ORCPT ); Thu, 3 Nov 2016 10:29:32 -0400 From: Neil Armstrong To: khilman@baylibre.com, carlo@caione.org, a.zummo@towertech.it, alexandre.belloni@free-electrons.com Cc: Neil Armstrong , rtc-linux@googlegroups.com, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 0/3] ARM64: meson-gxbb: Add support for system suspend Date: Thu, 3 Nov 2016 15:29:22 +0100 Message-Id: <1478183365-23708-1-git-send-email-narmstrong@baylibre.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Thie patchset is a very experiment patchset to support the System Suspend feature of the Amlogic Meson GX SoCs. These SoCs implements system suspend using a non-standard PSCI CPU_SUSPEND parameter to enter system suspend. A small driver is added to properly fill the platform_suspend_ops and make to correct SMC call. In order to wake up from an alarm, these SoCs have a special memory mapped register where an alarm time delay in seconds is stored. In order to reuse the RTC wakealarm feature, implement a fake RTC device that uses the system time to calculate a delay to write to the register. Note that this RFC is here to seek a better way to handle these platform specific features. Neil Armstrong (3): ARM64: meson: Add Amlogic Meson GX PM Suspend rtc: Add Amlogic Virtual Wake RTC ARM64: dts: meson-gxbb: Add support for PM and Virtual RTC arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 9 ++ drivers/firmware/meson/Kconfig | 6 + drivers/firmware/meson/Makefile | 1 + drivers/firmware/meson/meson_gx_pm.c | 86 +++++++++++++++ drivers/rtc/Kconfig | 10 ++ drivers/rtc/Makefile | 1 + drivers/rtc/rtc-meson-vrtc.c | 164 ++++++++++++++++++++++++++++ 7 files changed, 277 insertions(+) create mode 100644 drivers/firmware/meson/meson_gx_pm.c create mode 100644 drivers/rtc/rtc-meson-vrtc.c -- 1.9.1