Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Krzysztof Kozlowski <krzk@kernel.org>
To:     Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        Lee Jones <lee.jones@linaro.org>,
        Chanwoo Choi <cw00.choi@samsung.com>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Marek Szyprowski <m.szyprowski@samsung.com>,
        Sylwester Nawrocki <snawrocki@kernel.org>
Subject: [PATCH 9/9] mfd: sec-irq: Do not enforce (incorrect) interrupt trigger type
Date:   Thu, 10 Dec 2020 22:29:03 +0100
Message-Id: <20201210212903.216728-9-krzk@kernel.org>
In-Reply-To: <20201210212903.216728-1-krzk@kernel.org>
References: <20201210212903.216728-1-krzk@kernel.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Interrupt line can be configured on different hardware in different way,
even inverted.  Therefore driver should not enforce specific trigger
type - edge falling - but instead rely on Devicetree to configure it.

The Samsung PMIC drivers are used only on Devicetree boards.

Additionally, the PMIC datasheets describe the interrupt line as active
low with a requirement of acknowledge from the CPU therefore the edge
falling is not correct.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

This patch should wait till DTS changes are merged, as it relies on
proper Devicetree.
---
 drivers/mfd/sec-irq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c
index a98c5d165039..760f88a865ab 100644
--- a/drivers/mfd/sec-irq.c
+++ b/drivers/mfd/sec-irq.c
@@ -480,8 +480,7 @@ int sec_irq_init(struct sec_pmic_dev *sec_pmic)
 	}
 
 	ret = devm_regmap_add_irq_chip(sec_pmic->dev, sec_pmic->regmap_pmic,
-				       sec_pmic->irq,
-				       IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+				       sec_pmic->irq, IRQF_ONESHOT,
 				       sec_pmic->irq_base, sec_irq_chip,
 				       &sec_pmic->irq_data);
 	if (ret != 0) {
-- 
2.25.1