UPSTREAM: arm64: dts: rockchip: add gmac needed pclk for rk3399 pd

This patch fixes that sometimes hang at start-up time of the system.
As the below log:
...
[   11.136543] calling  pm_genpd_debug_init+0x0/0x60 @ 1
[   11.141602] initcall pm_genpd_debug_init+0x0/0x60 returned 0 after 11 usecs
[   11.148558] calling  genpd_poweroff_unused+0x0/0x84 @ 1
<hang>

In some cases, the rk3399 should turn off the gmac power domain to save
power if some boards didn't register the gmac device node for rk3399.
Then, rk3399 need to make sure the gmac's pclk enabled if we need
operate the gmac power domain. (Due to the NOC had enabled always)

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
(am from git/mmind/linux-rockchip.git branch for-next
 commit 2afc1db0c5bad5da75556889ebc3e75661be9028)

Change-Id: I8425b83e617de9eafaa093c3342b8e6082eb4112
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 6b69f83343eeceae747f222834ef999396f820ce..bb5d5ca92a570ebce83980c7be389d5b53dfe676 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1045,7 +1045,8 @@
                        };
                        pd_gmac@RK3399_PD_GMAC {
                                reg = <RK3399_PD_GMAC>;
-                               clocks = <&cru ACLK_GMAC>;
+                               clocks = <&cru ACLK_GMAC>,
+                                        <&cru PCLK_GMAC>;
                                pm_qos = <&qos_gmac>;
                        };
                        pd_perihp@RK3399_PD_PERIHP {