linux-kernel - [PATCH 1/2] ARM: dts: imx: specify the value of audmux pinctrl instead of 0x80000000

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Message-ID: <1384427230-979-2-git-send-email-b42378@freescale.com>
Date:	Thu, 14 Nov 2013 19:07:09 +0800
From:	Nicolin Chen <b42378@...escale.com>
To:	<timur@...i.org>, <shawn.guo@...aro.org>, <broonie@...nel.org>
CC:	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
	<alsa-devel@...a-project.org>, <linux@....linux.org.uk>,
	<ijc+devicetree@...lion.org.uk>, <swarren@...dotorg.org>,
	<mark.rutland@....com>, <pawel.moll@....com>,
	<rob.herring@...xeda.com>, <lgirdwood@...il.com>
Subject: [PATCH 1/2] ARM: dts: imx: specify the value of audmux pinctrl instead of 0x80000000

We must specify the value of audmux pinctrl if we want to use pinctrl_pm().
Thus change bypass value 0x80000000 to what we exactly need.

This patch also seperately unset PUE bit for TXD so that IOMUX won't pull
up/down the pin after turning into tristate. When we use SSI normal mode to
playback monaural audio via I2S signal, there'd be a pulled curve occur to
its signal at the second slot if setting PUE bit for TXD. And it will make
the second channel to play a constant noise. So by keeping the signal level
in the second slot, we can get a constant high level signal (-1) or a low
level one (0).

Signed-off-by: Nicolin Chen <b42378@...escale.com>
---
 arch/arm/boot/dts/imx6qdl.dtsi | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 6e096ca..6b76e55 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -601,27 +601,27 @@
 				audmux {
 					pinctrl_audmux_1: audmux-1 {
 						fsl,pins = <
-							MX6QDL_PAD_SD2_DAT0__AUD4_RXD  0x80000000
-							MX6QDL_PAD_SD2_DAT3__AUD4_TXC  0x80000000
-							MX6QDL_PAD_SD2_DAT2__AUD4_TXD  0x80000000
-							MX6QDL_PAD_SD2_DAT1__AUD4_TXFS 0x80000000
+							MX6QDL_PAD_SD2_DAT0__AUD4_RXD  0x130b0
+							MX6QDL_PAD_SD2_DAT3__AUD4_TXC  0x130b0
+							MX6QDL_PAD_SD2_DAT2__AUD4_TXD  0x110b0
+							MX6QDL_PAD_SD2_DAT1__AUD4_TXFS 0x130b0
 						>;
 					};
 
 					pinctrl_audmux_2: audmux-2 {
 						fsl,pins = <
-							MX6QDL_PAD_CSI0_DAT7__AUD3_RXD  0x80000000
-							MX6QDL_PAD_CSI0_DAT4__AUD3_TXC  0x80000000
-							MX6QDL_PAD_CSI0_DAT5__AUD3_TXD  0x80000000
-							MX6QDL_PAD_CSI0_DAT6__AUD3_TXFS 0x80000000
+							MX6QDL_PAD_CSI0_DAT7__AUD3_RXD  0x130b0
+							MX6QDL_PAD_CSI0_DAT4__AUD3_TXC  0x130b0
+							MX6QDL_PAD_CSI0_DAT5__AUD3_TXD  0x110b0
+							MX6QDL_PAD_CSI0_DAT6__AUD3_TXFS 0x130b0
 						>;
 					};
 
 					pinctrl_audmux_3: audmux-3 {
 						fsl,pins = <
-							MX6QDL_PAD_DISP0_DAT16__AUD5_TXC  0x80000000
-							MX6QDL_PAD_DISP0_DAT18__AUD5_TXFS 0x80000000
-							MX6QDL_PAD_DISP0_DAT19__AUD5_RXD  0x80000000
+							MX6QDL_PAD_DISP0_DAT16__AUD5_TXC  0x130b0
+							MX6QDL_PAD_DISP0_DAT18__AUD5_TXFS 0x130b0
+							MX6QDL_PAD_DISP0_DAT19__AUD5_RXD  0x130b0
 						>;
 					};
 				};
-- 
1.8.4


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