From: Neil Armstrong <narmstrong@baylibre.com>
To: khilman@baylibre.com
Cc: Neil Armstrong <narmstrong@baylibre.com>,
linux-amlogic@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] arm64: dts: meson: g12a: add drive-strength hdmi ddc pins
Date: Mon, 20 May 2019 15:48:15 +0200 [thread overview]
Message-ID: <20190520134817.25435-2-narmstrong@baylibre.com> (raw)
In-Reply-To: <20190520134817.25435-1-narmstrong@baylibre.com>
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 <narmstrong@baylibre.com>
---
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>;
};
};
--
2.21.0
WARNING: multiple messages have this Message-ID (diff)
From: Neil Armstrong <narmstrong@baylibre.com>
To: khilman@baylibre.com
Cc: linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Neil Armstrong <narmstrong@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 [thread overview]
Message-ID: <20190520134817.25435-2-narmstrong@baylibre.com> (raw)
In-Reply-To: <20190520134817.25435-1-narmstrong@baylibre.com>
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 <narmstrong@baylibre.com>
---
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>;
};
};
--
2.21.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Neil Armstrong <narmstrong@baylibre.com>
To: khilman@baylibre.com
Cc: linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Neil Armstrong <narmstrong@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 [thread overview]
Message-ID: <20190520134817.25435-2-narmstrong@baylibre.com> (raw)
In-Reply-To: <20190520134817.25435-1-narmstrong@baylibre.com>
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 <narmstrong@baylibre.com>
---
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>;
};
};
--
2.21.0
_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
next prev parent reply other threads:[~2019-05-20 13:48 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-20 13:48 [PATCH 0/3] arm64: dts: meson: g12a: add drive strength and hwrng Neil Armstrong
2019-05-20 13:48 ` Neil Armstrong
2019-05-20 13:48 ` Neil Armstrong
2019-05-20 13:48 ` Neil Armstrong [this message]
2019-05-20 13:48 ` [PATCH 1/3] arm64: dts: meson: g12a: add drive-strength hdmi ddc pins Neil Armstrong
2019-05-20 13:48 ` Neil Armstrong
2019-05-20 17:51 ` Martin Blumenstingl
2019-05-20 17:51 ` Martin Blumenstingl
2019-05-20 17:51 ` Martin Blumenstingl
2019-05-23 16:13 ` Kevin Hilman
2019-05-23 16:13 ` Kevin Hilman
2019-05-23 16:13 ` Kevin Hilman
2019-05-20 13:48 ` [PATCH 2/3] arm64: dts: meson: g12a: add drive strength for eth pins Neil Armstrong
2019-05-20 13:48 ` Neil Armstrong
2019-05-20 13:48 ` Neil Armstrong
2019-05-20 17:52 ` Martin Blumenstingl
2019-05-20 17:52 ` Martin Blumenstingl
2019-05-20 17:52 ` Martin Blumenstingl
2019-05-23 16:13 ` Kevin Hilman
2019-05-23 16:13 ` Kevin Hilman
2019-05-23 16:13 ` Kevin Hilman
2019-05-20 13:48 ` [PATCH 3/3] arm64: dts: meson: g12a: Add hwrng node Neil Armstrong
2019-05-20 13:48 ` Neil Armstrong
2019-05-20 13:48 ` Neil Armstrong
2019-05-20 17:45 ` Martin Blumenstingl
2019-05-20 17:45 ` Martin Blumenstingl
2019-05-20 17:45 ` Martin Blumenstingl
2019-05-21 8:31 ` Neil Armstrong
2019-05-21 8:31 ` Neil Armstrong
2019-05-21 8:31 ` Neil Armstrong
2019-05-23 16:13 ` Kevin Hilman
2019-05-23 16:13 ` Kevin Hilman
2019-05-23 16:13 ` Kevin Hilman
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