dt-bindings: add device tree binding for Allwinner H6 main CCU

BugLink: http://bugs.launchpad.net/bugs/1786352
[ Upstream commit 2e08e4d2ff488424919d69dd211ac860a019ac1d ]

The Allwinner H6 main CCU uses the internal oscillator of the SoC, which
is different with old SoCs' main CCU.

Add device tree binding for the Allwinner H6 main CCU.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
index 4ca21c3a6fc926d602460421264023670ffe1e52..460ef27b1008453dd879cbcdabc83cc9189d846f 100644 (file)
--- a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
@@ -20,6 +20,7 @@ Required properties :
                - "allwinner,sun50i-a64-ccu"
                - "allwinner,sun50i-a64-r-ccu"
                - "allwinner,sun50i-h5-ccu"
+               - "allwinner,sun50i-h6-ccu"
                - "nextthing,gr8-ccu"
 
 - reg: Must contain the registers base address and length
@@ -31,6 +32,9 @@ Required properties :
 - #clock-cells : must contain 1
 - #reset-cells : must contain 1
 
+For the main CCU on H6, one more clock is needed:
+- "iosc": the SoC's internal frequency oscillator
+
 For the PRCM CCUs on A83T/H3/A64, two more clocks are needed:
 - "pll-periph": the SoC's peripheral PLL from the main CCU
 - "iosc": the SoC's internal frequency oscillator