linux-kernel - [PATCH v3 2/5] pinctrl: qcom: Add msmgpio irqchip flags

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Message-Id: <1592818308-23001-3-git-send-email-mkshah@codeaurora.org>
Date:   Mon, 22 Jun 2020 15:01:45 +0530
From:   Maulik Shah <mkshah@...eaurora.org>
To:     bjorn.andersson@...aro.org, maz@...nel.org,
        linus.walleij@...aro.org, swboyd@...omium.org,
        evgreen@...omium.org, mka@...omium.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-gpio@...r.kernel.org, agross@...nel.org, tglx@...utronix.de,
        jason@...edaemon.net, dianders@...omium.org, rnayak@...eaurora.org,
        ilina@...eaurora.org, lsrao@...eaurora.org,
        Maulik Shah <mkshah@...eaurora.org>
Subject: [PATCH v3 2/5] pinctrl: qcom: Add msmgpio irqchip flags

Add irqchip specific flags for msmgpio irqchip to mask non wakeirqs
during suspend and mask before setting irq type.

Masking before changing type should make sure any spurious interrupt
is not detected during this operation.

Fixes: e35a6ae0eb3a ("pinctrl/msm: Setup GPIO chip in hierarchy")
Acked-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Maulik Shah <mkshah@...eaurora.org>
---
 drivers/pinctrl/qcom/pinctrl-msm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index 2419023..b909ffe 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -1143,6 +1143,8 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
 	pctrl->irq_chip.irq_release_resources = msm_gpio_irq_relres;
 	pctrl->irq_chip.irq_set_affinity = msm_gpio_irq_set_affinity;
 	pctrl->irq_chip.irq_set_vcpu_affinity = msm_gpio_irq_set_vcpu_affinity;
+	pctrl->irq_chip.flags = IRQCHIP_MASK_ON_SUSPEND
+				| IRQCHIP_SET_TYPE_MASKED;
 
 	np = of_parse_phandle(pctrl->dev->of_node, "wakeup-parent", 0);
 	if (np) {
-- 
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