From patchwork Fri May 22 13:19:29 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maulik Shah X-Patchwork-Id: 1296258 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.a=rsa-sha256 header.s=smtp header.b=K/CYCBuB; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49T6Yj4VFhz9sSw for ; Fri, 22 May 2020 23:20:41 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729940AbgEVNUj (ORCPT ); Fri, 22 May 2020 09:20:39 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:59174 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729894AbgEVNUh (ORCPT ); Fri, 22 May 2020 09:20:37 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1590153637; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=Xa/qM4zqWRu1/eInpOYfgqH291JWzSNfqUyeAVg2f5M=; b=K/CYCBuBJ5ZDrF2sk6L1jtZvQoCldiE2obF7bVE9sSONsfY+C7RzUe+VDSwUBQM5Jli39MpQ /xkb5mNg16J24+aToShusZorogr5KvXMW9k0oIU7yXc8/nqzA21BFypZ/QwWXEedDlaPP0sB JxrZxJBZjiQBJB99wPU2fCIIywE= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI0ZDgwZiIsICJsaW51eC1ncGlvQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n03.prod.us-west-2.postgun.com with SMTP id 5ec7d1a22a41f3ed00706b77 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 22 May 2020 13:20:34 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 2E53CC433AD; Fri, 22 May 2020 13:20:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mkshah-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: mkshah) by smtp.codeaurora.org (Postfix) with ESMTPSA id DD2A7C433CA; Fri, 22 May 2020 13:20:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org DD2A7C433CA Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=mkshah@codeaurora.org From: Maulik Shah To: bjorn.andersson@linaro.org, maz@kernel.org, linus.walleij@linaro.org, swboyd@chromium.org, evgreen@chromium.org, mka@chromium.org Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org, agross@kernel.org, tglx@linutronix.de, jason@lakedaemon.net, dianders@chromium.org, rnayak@codeaurora.org, ilina@codeaurora.org, lsrao@codeaurora.org, Maulik Shah Subject: [PATCH 4/4] irqchip: qcom-pdc: Introduce irq_set_wake call Date: Fri, 22 May 2020 18:49:29 +0530 Message-Id: <1590153569-21706-5-git-send-email-mkshah@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1590153569-21706-1-git-send-email-mkshah@codeaurora.org> References: <1590153569-21706-1-git-send-email-mkshah@codeaurora.org> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Remove irq_disable callback to allow lazy disable for pdc interrupts. Add irq_set_wake callback that unmask interrupt in HW when drivers mark interrupt for wakeup. Interrupt will be cleared in HW during lazy disable if its not marked for wakeup. Signed-off-by: Maulik Shah --- drivers/irqchip/qcom-pdc.c | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) diff --git a/drivers/irqchip/qcom-pdc.c b/drivers/irqchip/qcom-pdc.c index 6ae9e1f..f7c0662 100644 --- a/drivers/irqchip/qcom-pdc.c +++ b/drivers/irqchip/qcom-pdc.c @@ -36,6 +36,7 @@ struct pdc_pin_region { u32 cnt; }; +DECLARE_BITMAP(pdc_wake_irqs, PDC_MAX_IRQS); static DEFINE_RAW_SPINLOCK(pdc_lock); static void __iomem *pdc_base; static struct pdc_pin_region *pdc_region; @@ -87,22 +88,20 @@ static void pdc_enable_intr(struct irq_data *d, bool on) raw_spin_unlock(&pdc_lock); } -static void qcom_pdc_gic_disable(struct irq_data *d) +static int qcom_pdc_gic_set_wake(struct irq_data *d, unsigned int on) { if (d->hwirq == GPIO_NO_WAKE_IRQ) - return; - - pdc_enable_intr(d, false); - irq_chip_disable_parent(d); -} + return 0; -static void qcom_pdc_gic_enable(struct irq_data *d) -{ - if (d->hwirq == GPIO_NO_WAKE_IRQ) - return; + if (on) { + pdc_enable_intr(d, true); + irq_chip_enable_parent(d); + set_bit(d->hwirq, pdc_wake_irqs); + } else { + clear_bit(d->hwirq, pdc_wake_irqs); + } - pdc_enable_intr(d, true); - irq_chip_enable_parent(d); + return irq_chip_set_wake_parent(d, on); } static void qcom_pdc_gic_mask(struct irq_data *d) @@ -110,6 +109,9 @@ static void qcom_pdc_gic_mask(struct irq_data *d) if (d->hwirq == GPIO_NO_WAKE_IRQ) return; + if (!test_bit(d->hwirq, pdc_wake_irqs)) + pdc_enable_intr(d, false); + irq_chip_mask_parent(d); } @@ -118,6 +120,7 @@ static void qcom_pdc_gic_unmask(struct irq_data *d) if (d->hwirq == GPIO_NO_WAKE_IRQ) return; + pdc_enable_intr(d, true); irq_chip_unmask_parent(d); } @@ -197,15 +200,13 @@ static struct irq_chip qcom_pdc_gic_chip = { .irq_eoi = irq_chip_eoi_parent, .irq_mask = qcom_pdc_gic_mask, .irq_unmask = qcom_pdc_gic_unmask, - .irq_disable = qcom_pdc_gic_disable, - .irq_enable = qcom_pdc_gic_enable, .irq_get_irqchip_state = qcom_pdc_gic_get_irqchip_state, .irq_set_irqchip_state = qcom_pdc_gic_set_irqchip_state, .irq_retrigger = irq_chip_retrigger_hierarchy, .irq_set_type = qcom_pdc_gic_set_type, + .irq_set_wake = qcom_pdc_gic_set_wake, .flags = IRQCHIP_MASK_ON_SUSPEND | - IRQCHIP_SET_TYPE_MASKED | - IRQCHIP_SKIP_SET_WAKE, + IRQCHIP_SET_TYPE_MASKED, .irq_set_vcpu_affinity = irq_chip_set_vcpu_affinity_parent, .irq_set_affinity = irq_chip_set_affinity_parent, };