Package: linux-image-4.9.0-3-marvell
Version: 4.9.30-2+deb9u5
When the kirkwood-t5325.dtb included in the package is used on HP T5325,
the poweroff command fails to power off the device (indicated by the
front blue light not turning off). It does however brings the device to
near power off ( I have seen a kernel panic at the end that can be seen
if a hardware serial connection is used). Also, with the same dtb, sound
device does not get detected. dmesg output contains the following:
[ 10.861482] OF: /sound/simple-audio-card,cpu: arguments longer than
property
[ 10.861492] asoc-simple-card sound: parse error -22
[ 10.861508] asoc-simple-card: probe of sound failed with error -22
Fix:
Both problems could be corrected by fixing the dtb. "bodhi" at
https://forum.doozan.com possibly with the help of other forum members
had fixed and tested the corrections. Thanks go to him and those who
supported him!
If ever needed, package "bodhi" maintains can be found at
https://forum.doozan.com/read.php?2,12096 and the download contains a
patch file showing his modifications.
I myself tested the changes needed to fix the poweroff problem and the
sound device detection issue by getting the upstream kernel source,
changing two lines and compiling the kirkwood-t5325.dts. Please find the
attached working dtb and dts. The two fixes needed are as follows:
--- linux-master/arch/arm/boot/dts/kirkwood-t5325.dts 2017-10-05
01:16:05.0 +0100
+++ linux-master-fixed/arch/arm/boot/dts/kirkwood-t5325.dts
2017-10-06 13:59:19.834377641 +0100
@@ -174,7 +174,7 @@
compatible = "gpio-poweroff";
pinctrl-0 = <_power_off>;
pinctrl-names = "default";
- gpios = < 17 GPIO_ACTIVE_HIGH>;
+ gpios = < 16 GPIO_ACTIVE_HIGH>;
};
sound {
@@ -195,7 +195,7 @@
simple-audio-card,mclk-fs = <256>;
simple-audio-card,cpu {
- sound-dai = <>;
+ sound-dai = < 0>;
};
simple-audio-card,codec {
I haven't submitted the changes to upstream. Appreciate if you release
the package with a corrected kirkwood-t5325.dtb.
Kamal
kirkwood-t5325.dtb
Description: Binary data
/*
* Device Tree file for HP t5325 Thin Client"
*
* Copyright (C) 2014
*
* Thomas Petazzoni
* Andrew Lunn
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
/dts-v1/;
#include "kirkwood.dtsi"
#include "kirkwood-6281.dtsi"
/ {
model = "HP t5325 Thin Client";
compatible = "hp,t5325", "marvell,kirkwood-88f6281", "marvell,kirkwood";
memory {
device_type = "memory";
reg = <0x 0x2000>;
};
chosen {
bootargs = "console=ttyS0,115200n8";
stdout-path =
};
ocp@f100 {
pinctrl: pin-controller@1 {
pinctrl-0 = <_i2s _sysrst>;
pinctrl-names = "default";
pmx_button_power: pmx-button_power {
marvell,pins = "mpp45";
marvell,function = "gpio";
};
pmx_power_off: pmx-power-off {
marvell,pins = "mpp48";
marvell,function = "gpio";
};
pmx_led: pmx-led {
marvell,pins = "mpp21";
marvell,function = "gpio";
};
pmx_usb_sata_power_enable: pmx-usb-sata-power-enable {
marvell,pins = "mpp44";
marvell,function = "gpio";
};
pmx_spi: pmx-spi {
marvell,pins = "mpp1", "mpp2", "mpp3", "mpp7";
marvell,function = "spi";
};
pmx_sysrst: pmx-sysrst {
marvell,pins = "mpp6";
marvell,function = "sysrst";
};
pmx_i2s: pmx-i2s {
marvell,pins = "mpp39", "mpp40", "mpp41",
"mpp42",
"mpp43";
marvell,function = "audio";
};
};
spi@10600 {
status = "okay";
flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "st,m25p80", "jedec,spi-nor";
spi-max-frequency = <8600>;
