linux-kernel - rk3399 rockchip pcie power domain is saying unsupported

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Message-ID: <CANAwSgRXd=w87CKO4WQz7ZRAk+un7ctTPCi5XSa7GfNDhjy0YQ@mail.gmail.com>
Date:   Tue, 7 Jan 2020 23:30:37 +0530
From:   Anand Moon <linux.amoon@...il.com>
To:     Heiko Stuebner <heiko@...ech.de>,
        Robin Murphy <robin.murphy@....com>,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        linux-rockchip@...ts.infradead.org
Subject: rk3399 rockchip pcie power domain is saying unsupported

Hi All,

On my rock960 I want to add power domain feature for pcie node using
following patch. [0] https://patchwork.kernel.org/patch/9322549/
I also tried to add some more cru to see below
but the power domain summary shows unsupported

# cat /sys/kernel/debug/pm_genpd/pm_genpd_summary
...
pd_sdioaudio                    off-0
    /devices/platform/fe310000.dwmmc                    suspended
    /devices/platform/ff8a0000.i2s                      suspended
pd_perihp                       on
    /devices/platform/fe380000.usb                      unsupported
    /devices/platform/fe3c0000.usb                      unsupported
    /devices/platform/fe3a0000.usb                      suspended
    /devices/platform/fe3e0000.usb                      suspended
    /devices/platform/f8000000.pcie                     unsupported
pd_sd                           on
    /devices/platform/fe320000.dwmmc                    active
pd_gmac                         off-0
...
can any one share more inputs.
----
@@ -1049,6 +1056,19 @@
                                         <&cru SCLK_SDMMC>;
                                pm_qos = <&qos_sd>;
                        };
+                       pd_perihp@...399_PD_PERIHP {
+                               reg = <RK3399_PD_PERIHP>;
+                               clocks = <&cru ACLK_PERIHP>,
+                                        <&cru SCLK_PCIEPHY_REF>,
+                                        <&cru ACLK_PERF_PCIE>,
+                                        <&cru ACLK_PCIE>,
+                                        <&cru PCLK_PCIE>,
+                                        <&cru SCLK_PCIE_PM>;
+                               pm_qos = <&qos_perihp>,
+                                        <&qos_pcie>,
+                                        <&qos_usb_host0>,
+                                        <&qos_usb_host1>;
+                       };

-Anand