redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

ARM: dts: exynos: Add audio support (WM1811 CODEC boards) to Arndale board

Browse source 
Add sound node and the clock configurations for the I2S controller
for audio support on the Exynos5250 SoC Arndale boards with
WM1811 based audio daughter board.

We need to increase drive strength of the I2S bus, otherwise
the audio CODEC doesn't work. Likely the CODEC's master clock
is the main issue here.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This commit is contained in:
Sylwester Nawrocki 2019-10-02 17:28:31 +02:00 committed by Krzysztof Kozlowski
parent 64cc3ea949
commit 4359fce706
1 changed files with 26 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

27
arch/arm/boot/dts/exynos5250-arndale.dts
View file

@ -11,6 +11,7 @@
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/clock/samsung,s2mps11.h>
#include <dt-bindings/sound/samsung-i2s.h>
#include "exynos5250.dtsi"
/ {
@ -135,6 +136,12 @@
};
};
sound {
compatible = "samsung,arndale-wm1811";
samsung,audio-cpu = <&i2s0>;
samsung,audio-codec = <&wm1811>;
};
fixed-rate-clocks {
xxti {
compatible = "samsung,clock-xxti";
@ -151,6 +158,16 @@
};
};
&clock {
assigned-clocks = <&clock CLK_FOUT_EPLL>;
assigned-clock-rates = <49152000>;
};
&clock_audss {
assigned-clocks = <&clock_audss EXYNOS_MOUT_AUDSS>;
assigned-clock-parents = <&clock CLK_FOUT_EPLL>;
};
&cpu0 {
cpu0-supply = <&buck2_reg>;
};
@ -502,9 +519,11 @@
&i2c_3 {
status = "okay";
wm1811a@1a {
wm1811: codec@1a {
compatible = "wlf,wm1811";
reg = <0x1a>;
clocks = <&i2s0 CLK_I2S_CDCLK>;
clock-names = "MCLK1";
AVDD2-supply = <&main_dc_reg>;
CPVDD-supply = <&main_dc_reg>;
@ -540,9 +559,15 @@
};
&i2s0 {
assigned-clocks = <&i2s0 CLK_I2S_RCLK_SRC>;
assigned-clock-parents = <&clock_audss EXYNOS_I2S_BUS>;
status = "okay";
};
&i2s0_bus {
samsung,pin-drv = <EXYNOS4_PIN_DRV_LV2>;
};
&mali {
mali-supply = <&buck4_reg>;
status = "okay";