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;
Subject: Re: [PATCH 1/9] ARM: dts: exynos: correct PMIC interrupt trigger
 level on Artik 5
To:     Krzysztof Kozlowski <krzk@kernel.org>,
        Rob Herring <robh+dt@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:     Sylwester Nawrocki <snawrocki@kernel.org>
From:   Marek Szyprowski <m.szyprowski@samsung.com>
Message-ID: <800ac3de-5c46-f4b6-b793-31175e27ee47@samsung.com>
Date:   Fri, 11 Dec 2020 16:49:02 +0100
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0)
        Gecko/20100101 Thunderbird/78.5.1
MIME-Version: 1.0
In-Reply-To: <20201210212903.216728-1-krzk@kernel.org>
Content-Transfer-Encoding: 7bit
Content-Language: en-US
Content-Type: text/plain; charset="utf-8"
CMS-TYPE: 201P
References: <CGME20201210212917eucas1p2d0bc9a3099abfc2d2c223facc86be03e@eucas1p2.samsung.com>
        <20201210212903.216728-1-krzk@kernel.org>
Precedence: bulk

On 10.12.2020 22:28, Krzysztof Kozlowski wrote:
> The Samsung PMIC datasheets describe the interrupt line as active low
> with a requirement of acknowledge from the CPU.  Without specifying the
> interrupt type in Devicetree, kernel might apply some fixed
> configuration, not necessarily working for this hardware.
>
> Fixes: b004a34bd0ff ("ARM: dts: exynos: Add exynos3250-artik5 dtsi file for ARTIK5 module")
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> ---
>   arch/arm/boot/dts/exynos3250-artik5.dtsi | 2 +-
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/exynos3250-artik5.dtsi b/arch/arm/boot/dts/exynos3250-artik5.dtsi
> index 04290ec4583a..829c05b2c405 100644
> --- a/arch/arm/boot/dts/exynos3250-artik5.dtsi
> +++ b/arch/arm/boot/dts/exynos3250-artik5.dtsi
> @@ -79,7 +79,7 @@ &i2c_0 {
>   	pmic@66 {
>   		compatible = "samsung,s2mps14-pmic";
>   		interrupt-parent = <&gpx3>;
> -		interrupts = <5 IRQ_TYPE_NONE>;
> +		interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
>   		pinctrl-names = "default";
>   		pinctrl-0 = <&s2mps14_irq>;
>   		reg = <0x66>;

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland