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Date: Thu, 27 Aug 2015 13:29:31 +0100
From: Peter Griffin <peter.griffin@...aro.org>
To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
maxime.coquelin@...com, srinivas.kandagatla@...il.com,
patrice.chotard@...com, mchehab@....samsung.com
Cc: peter.griffin@...aro.org, lee.jones@...aro.org,
devicetree@...r.kernel.org, linux-media@...r.kernel.org
Subject: [PATCH v2 1/5] ARM: DT: STi: stihxxx-b2120: Add pulse-width properties to ssc2 & ssc3
Adding these properties makes the I2C bus to the demodulators much
more reliable, and we no longer suffer from I2C errors when tuning.
Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
---
arch/arm/boot/dts/stihxxx-b2120.dtsi | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/stihxxx-b2120.dtsi b/arch/arm/boot/dts/stihxxx-b2120.dtsi
index f589fe4..62994ae 100644
--- a/arch/arm/boot/dts/stihxxx-b2120.dtsi
+++ b/arch/arm/boot/dts/stihxxx-b2120.dtsi
@@ -27,12 +27,18 @@
};
};
- i2c@...2000 {
+ ssc2: i2c@...2000 {
status = "okay";
+ clock-frequency = <100000>;
+ st,i2c-min-scl-pulse-width-us = <0>;
+ st,i2c-min-sda-pulse-width-us = <5>;
};
- i2c@...3000 {
+ ssc3: i2c@...3000 {
status = "okay";
+ clock-frequency = <100000>;
+ st,i2c-min-scl-pulse-width-us = <0>;
+ st,i2c-min-sda-pulse-width-us = <5>;
};
i2c@...4000 {
--
1.9.1
--
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