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[90.63.244.31]) by smtp.gmail.com with ESMTPSA id h12sm12091358wre.14.2019.05.20.06.48.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 20 May 2019 06:48:24 -0700 (PDT) From: Neil Armstrong To: khilman@baylibre.com Subject: [PATCH 1/3] arm64: dts: meson: g12a: add drive-strength hdmi ddc pins Date: Mon, 20 May 2019 15:48:15 +0200 Message-Id: <20190520134817.25435-2-narmstrong@baylibre.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190520134817.25435-1-narmstrong@baylibre.com> References: <20190520134817.25435-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190520_064827_193842_EDFA1CD5 X-CRM114-Status: GOOD ( 11.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Neil Armstrong Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP With the default boot settings, the DDC drive strength is too weak, set the driver-strengh to 4mA to avoid errors on the DDC line. Signed-off-by: Neil Armstrong Reviewed-by: Martin Blumenstingl --- arch/arm64/boot/dts/amlogic/meson-g12a.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi index 5b4942c73e65..aa678d92238b 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi @@ -327,6 +327,7 @@ "hdmitx_sck"; function = "hdmitx"; bias-disable; + drive-strength-microamp = <4000>; }; };