From: Peter Griffin <peter.griffin@linaro.org>
To: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, srinivas.kandagatla@gmail.com,
maxime.coquelin@st.com, patrice.chotard@st.com,
mchehab@osg.samsung.com
Cc: peter.griffin@linaro.org, lee.jones@linaro.org,
kernel@stlinux.com, devicetree@vger.kernel.org
Subject: [PATCH 1/3] ARM: DT: STi: stihxxx-b2120: Add pulse-width properties to ssc2 & ssc3
Date: Tue, 25 Aug 2015 17:22:08 +0100 [thread overview]
Message-ID: <1440519730-486-2-git-send-email-peter.griffin@linaro.org> (raw)
In-Reply-To: <1440519730-486-1-git-send-email-peter.griffin@linaro.org>
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@linaro.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@9842000 {
+ ssc2: i2c@9842000 {
status = "okay";
+ clock-frequency = <100000>;
+ st,i2c-min-scl-pulse-width-us = <0>;
+ st,i2c-min-sda-pulse-width-us = <5>;
};
- i2c@9843000 {
+ ssc3: i2c@9843000 {
status = "okay";
+ clock-frequency = <100000>;
+ st,i2c-min-scl-pulse-width-us = <0>;
+ st,i2c-min-sda-pulse-width-us = <5>;
};
i2c@9844000 {
--
1.9.1
next prev parent reply other threads:[~2015-08-25 16:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-25 16:22 [PATCH 0/3] c8sectpfe Peter Griffin
2015-08-25 16:22 ` Peter Griffin [this message]
2015-08-25 16:22 ` [PATCH 2/3] ARM: DT: STi: STiH407: Add c8sectpfe LinuxDVB DT node Peter Griffin
[not found] ` <1440519730-486-3-git-send-email-peter.griffin-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-08-26 7:30 ` Lee Jones
2015-08-26 11:44 ` Peter Griffin
2015-08-26 11:57 ` Lee Jones
2015-08-25 16:22 ` [PATCH 3/3] [media] c8sectpfe: Remove select on undefined LIBELF_32 Peter Griffin
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