From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 664D3C433E6 for ; Sun, 3 Jan 2021 10:32:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3A8FE207D0 for ; Sun, 3 Jan 2021 10:32:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726655AbhACKcM (ORCPT ); Sun, 3 Jan 2021 05:32:12 -0500 Received: from new2-smtp.messagingengine.com ([66.111.4.224]:59483 "EHLO new2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726029AbhACKcL (ORCPT ); Sun, 3 Jan 2021 05:32:11 -0500 Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailnew.nyi.internal (Postfix) with ESMTP id 3BFF45803BB; Sun, 3 Jan 2021 05:31:04 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute5.internal (MEProxy); Sun, 03 Jan 2021 05:31:04 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sholland.org; h= from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; s=fm1; bh=xZrwF91W8lKr7yTr9S7ucMDrtY mVv8csp2XZa2xyKsg=; b=M6/Zafz8Y9dCepJfVlqx7Bca4h+2lC3fQQjwxUgwHr qHGq5BoldAvKHBW1iZs7fVw052X+6Mr/BcjBUzZx8IoewphOA2WHsuuMkU53n4+B kHjyB4cnRTzxO0et2OmSjZrdBdn9K5BhX3EAmXFC2pmFJ02LWR8eept491y7fe1I uMooCNRylHcqxqs/EUBU5XAjkfl1uMie4G8d43lU/I2NEKbPG/akhs+/Mwouy9Wg 3cxFtOrY1KvLGhzP6NZhdcqH/JBcrZQhXRbx78O9X62K/3OHRjrLOS22fA5lFEn8 lpkRXucs0Ot33vTBYr+4Pgs4QPzN1j1K+3EAb/i0szHA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :message-id:mime-version:subject:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=xZrwF91W8lKr7yTr9 S7ucMDrtYmVv8csp2XZa2xyKsg=; b=aOrfc1vS+MjVfMHHMOt6wfOyTUlV1mWuG nk3CYLz04kaXHAfio34IOeM5katfwdVoSwLLs9C/oxiMCIUxAK4ZJhVWEeknCQ/E gbZ7HXlqmZDb1hXeQBrakSPuFmG5DBaOXeT9gi+DSlmt5mlenxBPNgp+vdZgevCF uve1INSRo6zb3rYiuXEdSsQwbYMgT79tI/tJ0MutkE8/hEq91xVqQ9yAyz/qFDom 76rj7LSZ8H2HHgT/tM3SpE5ygPyNTpdfXcVw89/tWWhLO81egPdqFNR8A+8iF1U0 XOAIlnN07r3ijOp+ZjbpDaIN8WQGVJRpQU2aaOYJ7Bma5tj5cR9DA== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrvdefuddgudejucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvufffkffoggfgsedtkeertdertddtnecuhfhrohhmpefurghmuhgvlhcu jfholhhlrghnugcuoehsrghmuhgvlhesshhhohhllhgrnhgurdhorhhgqeenucggtffrrg htthgvrhhnpeeiteekhfehuddugfeltddufeejjeefgeevheekueffhffhjeekheeiffdt vedtveenucfkphepjedtrddufeehrddugeekrdduhedunecuvehluhhsthgvrhfuihiivg eptdenucfrrghrrghmpehmrghilhhfrhhomhepshgrmhhuvghlsehshhholhhlrghnugdr ohhrgh X-ME-Proxy: Received: from titanium.stl.sholland.net (70-135-148-151.lightspeed.stlsmo.sbcglobal.net [70.135.148.151]) by mail.messagingengine.com (Postfix) with ESMTPA id D391F108005F; Sun, 3 Jan 2021 05:31:01 -0500 (EST) From: Samuel Holland To: Thomas Gleixner , Marc Zyngier , Rob Herring , Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec , Russell King , Catalin Marinas , Will Deacon Cc: Ondrej Jirman , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, Samuel Holland Subject: [PATCH v3 00/10] sunxi: Support IRQ wakeup from deep sleep Date: Sun, 3 Jan 2021 04:30:51 -0600 Message-Id: <20210103103101.33603-1-samuel@sholland.org> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Allwinner sun6i/sun8i/sun50i SoCs (A31 and newer) have two interrupt controllers: GIC and R_INTC. GIC does not support wakeup. R_INTC handles the external NMI pin, and provides 32+ IRQs to the ARISC. The first 16 of these correspond 1:1 to a block of GIC IRQs starting with the NMI. The last 13-16 multiplex the first (up to) 128 GIC SPIs. This series replaces the existing chained irqchip driver that could only control the NMI, with a stacked irqchip driver that also provides wakeup capability for those multiplexed SPI IRQs. The idea is to preconfigure the ARISC's IRQ controller, and then the ARISC firmware knows to wake up as soon as it receives an IRQ. It can also decide how deep it can suspend based on the selected wakeup IRQs. As future work, it may be useful to do the chained->stacked conversion on the sunxi-nmi driver as well. Patches 1-2 add the new bindings. Patch 3 adds the new driver. Patch 4 adds wakeup capability. The other patches update the device trees to use R_INTC where beneficial. With appropriate firmware and configuration, this series allows waking from (and it has been tested with) the RTC, NMI/PMIC (power button, A/C plug, etc.), all GPIO ports (button, lid switch, modem, etc.), LRADC, and UARTs. I have tested this patch set on the H3, A64, H5, and H6 SoCs. --- Changes from v2: - Fix edge IRQs on GICv2 with EOImode == 0, as found on A83T and older. - Replace .irq_ack callback with .irq_mask. - Drop IRQCHIP_EOI_THREADED. - This removes the dependency on IRQ_FASTEOI_HIERARCHY_HANDLERS. - Move IRQ_DOMAIN_HIERARCHY selection to ARCH_SUNXI to fix A83T build. - Add support for the second IRQ ENABLE/PENDING register on H6 and up. - Add support for multiplexed IRQs beyond the initial 16. - This requires a new binding, but keeps old binding compatibility. - This requires a separate mux mapping for H6 and up. - Rename parent_* => nmi_* because they only apply to the NMI. - Merge code common to probe and resume functions. - Also run suspend callback at syscore shutdown, for boards with no PMIC where firmware is also responsible for poweroff/poweron. - These two changes mean nothing is conditional on CONFIG_PM_SLEEP anymore, since all code is used even without it. - Since the binding changed, update all SoC DTs, A31 and up. - Drop r_ir from inclusion (it needs more than an IRQ to wake) and include pio (the main pin controller) and (r_)lradc. - As there are significant changes, I did not carry forward Maxime's Acked-by or Rob's Reviewed-by. Changes from v1: - Use writel_relaxed() instead if writel(). - Remove use of the MASK register, as it doesn't affect the NMI as seen by the GIC. It only affects the IRQs seen by the coprocessor. - Leave NMI_HWIRQ enabled at all times, since it can be masked at the GIC level (removed .irq_enable and .irq_disable). - Use .irq_ack vs .irq_eoi depending on the trigger type, to avoid missing interrupts or double interrupts. - Because of this change, the driver needs two "irq_chip"s, one with .irq_eoi set to our function and one without. - Also because of this, we need IRQ_FASTEOI_HIERARCHY_HANDLERS for handle_fasteoi_ack_irq(), so our .irq_ack function gets called while the GIC driver works as if handle_fasteoi_irq() was used. - Inline the SUNXI_SRC_TYPE_* enum into sun6i_r_intc_irq_set_type(). - Add a comment explaining how the trigger type is used. - Don't call irqd_set_trigger_type(). - Set IRQCHIP_SET_TYPE_MASKED to match the GIC (since flags from this driver mask flags from that one). - Set IRQCHIP_EOI_THREADED to avoid doubled level interrupts, since the latch will be set again as long as the trigger is met. - Replace sun6i_r_intc_domain_translate() with irq_domain_translate_twocell(). - Use an enum for the device tree binding. - Update commit messages for accuracy and typos. Samuel Holland (10): dt-bindings: irq: sun6i-r: Split the binding from sun7i-nmi dt-bindings: irq: sun6i-r: Add a compatible for the H3 irqchip/sun6i-r: Use a stacked irqchip driver irqchip/sun6i-r: Add wakeup support ARM: dts: sunxi: Rename nmi_intc to r_intc ARM: dts: sunxi: Use the new r_intc binding ARM: dts: sunxi: h3/h5: Add r_intc node ARM: dts: sunxi: Move wakeup-capable IRQs to r_intc arm64: dts: allwinner: Use the new r_intc binding arm64: dts: allwinner: Move wakeup-capable IRQs to r_intc .../allwinner,sun6i-a31-r-intc.yaml | 65 ++++ .../allwinner,sun7i-a20-sc-nmi.yaml | 10 - arch/arm/boot/dts/sun6i-a31-hummingbird.dts | 4 +- arch/arm/boot/dts/sun6i-a31-m9.dts | 4 +- .../boot/dts/sun6i-a31-mele-a1000g-quad.dts | 4 +- arch/arm/boot/dts/sun6i-a31.dtsi | 8 +- arch/arm/boot/dts/sun6i-a31s-primo81.dts | 4 +- .../arm/boot/dts/sun6i-a31s-sina31s-core.dtsi | 4 +- .../boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 4 +- .../sun6i-a31s-yones-toptech-bs1078-v2.dts | 4 +- .../dts/sun6i-reference-design-tablet.dtsi | 4 +- arch/arm/boot/dts/sun8i-a23-a33.dtsi | 8 +- arch/arm/boot/dts/sun8i-a33-olinuxino.dts | 4 +- .../arm/boot/dts/sun8i-a33-sinlinx-sina33.dts | 4 +- .../dts/sun8i-a83t-allwinner-h8homlet-v2.dts | 4 +- arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts | 4 +- .../boot/dts/sun8i-a83t-cubietruck-plus.dts | 4 +- arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts | 4 +- arch/arm/boot/dts/sun8i-a83t.dtsi | 5 +- arch/arm/boot/dts/sun8i-r16-bananapi-m2m.dts | 4 +- arch/arm/boot/dts/sun8i-r16-parrot.dts | 4 +- .../dts/sun8i-reference-design-tablet.dtsi | 4 +- arch/arm/boot/dts/sunxi-h3-h5.dtsi | 12 + arch/arm/mach-sunxi/Kconfig | 1 + arch/arm64/Kconfig.platforms | 1 + .../allwinner/sun50i-a64-amarula-relic.dts | 2 +- .../dts/allwinner/sun50i-a64-bananapi-m64.dts | 2 +- .../dts/allwinner/sun50i-a64-nanopi-a64.dts | 2 +- .../dts/allwinner/sun50i-a64-olinuxino.dts | 2 +- .../dts/allwinner/sun50i-a64-orangepi-win.dts | 2 +- .../boot/dts/allwinner/sun50i-a64-pine64.dts | 2 +- .../dts/allwinner/sun50i-a64-pinebook.dts | 2 +- .../dts/allwinner/sun50i-a64-pinephone.dtsi | 2 +- .../boot/dts/allwinner/sun50i-a64-pinetab.dts | 2 +- .../boot/dts/allwinner/sun50i-a64-sopine.dtsi | 2 +- .../boot/dts/allwinner/sun50i-a64-teres-i.dts | 2 +- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 6 +- .../dts/allwinner/sun50i-h6-beelink-gs1.dts | 2 +- .../dts/allwinner/sun50i-h6-orangepi-3.dts | 2 +- .../dts/allwinner/sun50i-h6-orangepi.dtsi | 2 +- .../boot/dts/allwinner/sun50i-h6-pine-h64.dts | 4 +- arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 5 +- drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-sun6i-r.c | 353 ++++++++++++++++++ drivers/irqchip/irq-sunxi-nmi.c | 26 +- 45 files changed, 511 insertions(+), 90 deletions(-) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/allwinner,sun6i-a31-r-intc.yaml create mode 100644 drivers/irqchip/irq-sun6i-r.c -- 2.26.2