From patchwork Fri Sep 13 21:59:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lina Iyer X-Patchwork-Id: 11145349 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D2A411395 for ; Fri, 13 Sep 2019 22:00:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B30E7214D9 for ; Fri, 13 Sep 2019 22:00:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="KsllB6Em"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="KsllB6Em" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403906AbfIMWAN (ORCPT ); Fri, 13 Sep 2019 18:00:13 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:59988 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390350AbfIMV7w (ORCPT ); Fri, 13 Sep 2019 17:59:52 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id EC264613A6; Fri, 13 Sep 2019 21:59:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1568411990; bh=PdwMJsA9h89YRbDUO1YMlOlH2+m9AQqQkm7xDJFf0jQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KsllB6EmSPRPeZKRIyykgAO0eUava43hncoPY7JCxMPWRh1fGinfiQc28YDpQmCGl IQv1/oEZHRK2dJK2XpsZLsQkJtIQnuYwD55zFjH+oq9UF9DIM2yxOCw4z+FMBqMm1N 8NG+2/UZhCkOmXubu5dicruAO8gOwSKDJXxL45Ag= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_INVALID,DKIM_SIGNED,SPF_NONE autolearn=no autolearn_force=no version=3.4.0 Received: from codeaurora.org (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: ilina@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 9132A611CE; Fri, 13 Sep 2019 21:59:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1568411990; bh=PdwMJsA9h89YRbDUO1YMlOlH2+m9AQqQkm7xDJFf0jQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KsllB6EmSPRPeZKRIyykgAO0eUava43hncoPY7JCxMPWRh1fGinfiQc28YDpQmCGl IQv1/oEZHRK2dJK2XpsZLsQkJtIQnuYwD55zFjH+oq9UF9DIM2yxOCw4z+FMBqMm1N 8NG+2/UZhCkOmXubu5dicruAO8gOwSKDJXxL45Ag= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 9132A611CE Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=ilina@codeaurora.org From: Lina Iyer To: swboyd@chromium.org, evgreen@chromium.org, maz@kernel.org, linus.walleij@linaro.org Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, bjorn.andersson@linaro.org, mkshah@codeaurora.org, linux-gpio@vger.kernel.org, Lina Iyer Subject: [PATCH RFC v2 09/14] drivers: irqchip: pdc: Add irqchip set/get state calls Date: Fri, 13 Sep 2019 15:59:17 -0600 Message-Id: <1568411962-1022-10-git-send-email-ilina@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1568411962-1022-1-git-send-email-ilina@codeaurora.org> References: <1568411962-1022-1-git-send-email-ilina@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Maulik Shah Add irqchip calls to set/get interrupt state from the parent interrupt controller. When GPIOs are renabled as interrupt lines, it is desirable to clear the interrupt state at the GIC. This avoids any unwanted interrupt as a result of stale pending state recorded when the line was used as a GPIO. Signed-off-by: Maulik Shah [updated commit text] Signed-off-by: Lina Iyer --- drivers/irqchip/qcom-pdc.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/irqchip/qcom-pdc.c b/drivers/irqchip/qcom-pdc.c index affb0bfa..2b49e70 100644 --- a/drivers/irqchip/qcom-pdc.c +++ b/drivers/irqchip/qcom-pdc.c @@ -5,6 +5,7 @@ #include #include +#include #include #include #include @@ -87,6 +88,24 @@ static void qcom_pdc_gic_disable(struct irq_data *d) irq_chip_disable_parent(d); } +static int qcom_pdc_gic_get_irqchip_state(struct irq_data *d, + enum irqchip_irq_state which, bool *state) +{ + if (d->hwirq == GPIO_NO_WAKE_IRQ) + return 0; + + return irq_chip_get_parent_state(d, which, state); +} + +static int qcom_pdc_gic_set_irqchip_state(struct irq_data *d, + enum irqchip_irq_state which, bool value) +{ + if (d->hwirq == GPIO_NO_WAKE_IRQ) + return 0; + + return irq_chip_set_parent_state(d, which, value); +} + static void qcom_pdc_gic_enable(struct irq_data *d) { if (d->hwirq == GPIO_NO_WAKE_IRQ) @@ -248,6 +267,8 @@ static struct irq_chip qcom_pdc_gic_chip = { .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, .flags = IRQCHIP_MASK_ON_SUSPEND |