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([2a00:1fa0:4662:fa95:113a:ced3:2a3e:b3a4]) by smtp.gmail.com with ESMTPSA id c9sm904777lfd.98.2020.11.12.12.52.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 12 Nov 2020 12:52:22 -0800 (PST) Subject: Re: [PATCH v4 8/8] [DNI] arm64: dts: renesas: eagle: Specify channel amplitude To: Jacopo Mondi , kieran.bingham+renesas@ideasonboard.com, laurent.pinchart+renesas@ideasonboard.com, niklas.soderlund+renesas@ragnatech.se, geert@linux-m68k.org Cc: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Hyun Kwon , Manivannan Sadhasivam References: <20201112162729.101384-1-jacopo+renesas@jmondi.org> <20201112162729.101384-9-jacopo+renesas@jmondi.org> From: Sergei Shtylyov Message-ID: <3a659060-8e73-0d58-0415-7f567556f966@gmail.com> Date: Thu, 12 Nov 2020 23:52:20 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: <20201112162729.101384-9-jacopo+renesas@jmondi.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On 11/12/20 7:27 PM, Jacopo Mondi wrote: > Use the newly introduced 'maxim,maxim,initial-reverse-channel-mV' "maxim," repeated twice. > property to specify the initial reverse channel amplitude when the > remote serializers are not pre-programmed with noise immunity threshold > enabled. > > Signed-off-by: Jacopo Mondi > --- > arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts > index 45b947d44cee..75296865104c 100644 > --- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts > +++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts > @@ -308,6 +308,7 @@ gmsl: gmsl-deserializer@48 { > > /* eagle-pca9654-max9286-pwdn */ > enable-gpios = <&io_expander 0 GPIO_ACTIVE_HIGH>; > + maxim,initial-reverse-channel-mV = <100>; > > /* > * Workaround: Hog the CAMVDD line high as we can't establish a MBR, Sergei