Audio power domain includes following hardware modules: Pin controller
for GPZ bank, AudioSS clock controller, PL330 ADMA device and Exynos I2S
controller.
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
Currently this domain will not be turned off, because pinctrl driver
don't support runtime PM and PL330 ADMA requires irq-safe runtime PM.
This will be fixed in the future.
Issues pointed in the discussion of v1 has been resolved by commit
07731019c59c ("pinctrl: samsung: Move retention control from mach-exynos
to the pinctrl driver").
Best regards
Marek Szyprowski
Samsung R&D Institute Poland
Changelog:
v2:
- added domain label
v1: https://patchwork.kernel.org/patch/9485083/
- initial version
---
arch/arm/boot/dts/exynos5420.dtsi | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 8aa2cc7aa125..933075bfce2a 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -188,6 +188,7 @@
clocks = <&clock CLK_FIN_PLL>, <&clock CLK_MAU_EPLL>,
<&clock CLK_SCLK_MAUDIO0>, <&clock CLK_SCLK_MAUPCM0>;
clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in";
+ power-domains = <&mau_pd>;
};
mfc: codec@11000000 {
@@ -322,6 +323,13 @@
clock-names = "oscclk", "clk0", "clk1", "clk2", "asb0", "asb1";
};
+ mau_pd: power-domain@100440E0 {
+ compatible = "samsung,exynos4210-pd";
+ reg = <0x100440E0 0x20>;
+ #power-domain-cells = <0>;
+ label = "MAU";
+ };
+
pinctrl_0: pinctrl@13400000 {
compatible = "samsung,exynos5420-pinctrl";
reg = <0x13400000 0x1000>;
@@ -356,6 +364,7 @@
compatible = "samsung,exynos5420-pinctrl";
reg = <0x03860000 0x1000>;
interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+ power-domains = <&mau_pd>;
};
amba {
@@ -374,6 +383,7 @@
#dma-cells = <1>;
#dma-channels = <6>;
#dma-requests = <16>;
+ power-domains = <&mau_pd>;
};
pdma0: pdma@121A0000 {
@@ -446,6 +456,7 @@
samsung,idma-addr = <0x03000000>;
pinctrl-names = "default";
pinctrl-0 = <&i2s0_bus>;
+ power-domains = <&mau_pd>;
status = "disabled";
};
--
2.15.0
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