[PATCH 0/3] rk3328 and rock64 display support

[PATCH 0/3] rk3328 and rock64 display support

[Heiko Stuebner]

Companion series for the display modifications adding the necessary
devicetree stuff for display support on the rk3328-rock64.

Heiko Stuebner (3):
  arm64: dts: rockchip: add Innosilicon hdmi phy node to rk3328
  arm64: dts: rockchip: add rk3328 display nodes
  arm64: dts: rockchip: enable display nodes on rk3328-rock64

 arch/arm64/boot/dts/rockchip/rk3328-rock64.dts | 16 ++++++
 arch/arm64/boot/dts/rockchip/rk3328.dtsi       | 70 ++++++++++++++++++++++++++
 2 files changed, 86 insertions(+)

-- 
2.15.1

[PATCH 1/3] arm64: dts: rockchip: add Innosilicon hdmi phy node to rk3328

[Heiko Stuebner]

The rk3328 uses a hdmiphy from Innosilicon, so add the necessary node
to the rk3328 soc devicetree.

Signed-off-by: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
---
 arch/arm64/boot/dts/rockchip/rk3328.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index 65a5cebde62d..1615effcc191 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -635,6 +635,20 @@
 		status = "disabled";
 	};
 
+	hdmiphy: phy@ff430000 {
+		compatible = "rockchip,rk3328-hdmi-phy";
+		reg = <0x0 0xff430000 0x0 0x10000>;
+		interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru PCLK_HDMIPHY>, <&xin24m>;
+		clock-names = "sysclk", "refclk";
+		clock-output-names = "hdmi_phy";
+		#clock-cells = <0>;
+		nvmem-cells = <&efuse_cpu_version>;
+		nvmem-cell-names = "cpu-version";
+		#phy-cells = <0>;
+		status = "disabled";
+	};
+
 	cru: clock-controller@ff440000 {
 		compatible = "rockchip,rk3328-cru", "rockchip,cru", "syscon";
 		reg = <0x0 0xff440000 0x0 0x1000>;
-- 
2.15.1

[PATCH 2/3] arm64: dts: rockchip: add rk3328 display nodes

[Heiko Stuebner]

Add the chain of display nodes from the core display-subsystem
through the one vop to the dw-hdmi output.

Signed-off-by: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
---
 arch/arm64/boot/dts/rockchip/rk3328.dtsi | 56 ++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index 1615effcc191..65b7d460a044 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -185,6 +185,11 @@
 		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
 	};
 
+	display_subsystem: display-subsystem {
+		compatible = "rockchip,display-subsystem";
+		ports = <&vop_out>;
+	};
+
 	psci {
 		compatible = "arm,psci-1.0", "arm,psci-0.2";
 		method = "smc";
@@ -626,6 +631,28 @@
 		status = "disabled";
 	};
 
+	vop: vop@ff370000 {
+		compatible = "rockchip,rk3328-vop";
+		reg = <0x0 0xff370000 0x0 0x3efc>;
+		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH 0>;
+		clocks = <&cru ACLK_VOP>, <&cru DCLK_LCDC>, <&cru HCLK_VOP>;
+		clock-names = "aclk_vop", "dclk_vop", "hclk_vop";
+		resets = <&cru SRST_VOP_A>, <&cru SRST_VOP_H>, <&cru SRST_VOP_D>;
+		reset-names = "axi", "ahb", "dclk";
+		iommus = <&vop_mmu>;
+		status = "disabled";
+
+		vop_out: port {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			vop_out_hdmi: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&hdmi_in_vop>;
+			};
+		};
+	};
+
 	vop_mmu: iommu@ff373f00 {
 		compatible = "rockchip,iommu";
 		reg = <0x0 0xff373f00 0x0 0x100>;
@@ -635,6 +662,35 @@
 		status = "disabled";
 	};
 
+	hdmi: hdmi@ff3c0000 {
+		compatible = "rockchip,rk3328-dw-hdmi";
+		reg = <0x0 0xff3c0000 0x0 0x20000>;
+		reg-io-width = <4>;
+		interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru PCLK_HDMI>,
+			 <&cru SCLK_HDMI_SFC>;
+		clock-names = "iahb",
+			      "isfr";
+		phys = <&hdmiphy>;
+		phy-names = "hdmi";
+		pinctrl-names = "default";
+		pinctrl-0 = <&hdmi_cec &hdmii2c_xfer &hdmi_hpd>;
+		rockchip,grf = <&grf>;
+		status = "disabled";
+
+		ports {
+			hdmi_in: port {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				hdmi_in_vop: endpoint@0 {
+					reg = <0>;
+					remote-endpoint = <&vop_out_hdmi>;
+				};
+			};
+		};
+	};
+
 	hdmiphy: phy@ff430000 {
 		compatible = "rockchip,rk3328-hdmi-phy";
 		reg = <0x0 0xff430000 0x0 0x10000>;
-- 
2.15.1

Re: [PATCH 2/3] arm64: dts: rockchip: add rk3328 display nodes

[Robin Murphy]

Hi Heiko,

On 16/02/18 22:38, Heiko Stuebner wrote:
> Add the chain of display nodes from the core display-subsystem
> through the one vop to the dw-hdmi output.
> 
> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
> ---
>   arch/arm64/boot/dts/rockchip/rk3328.dtsi | 56 ++++++++++++++++++++++++++++++++
>   1 file changed, 56 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> index 1615effcc191..65b7d460a044 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> @@ -185,6 +185,11 @@
>   		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
>   	};
>   
> +	display_subsystem: display-subsystem {
> +		compatible = "rockchip,display-subsystem";
> +		ports = <&vop_out>;
> +	};
> +
>   	psci {
>   		compatible = "arm,psci-1.0", "arm,psci-0.2";
>   		method = "smc";
> @@ -626,6 +631,28 @@
>   		status = "disabled";
>   	};
>   
> +	vop: vop@ff370000 {
> +		compatible = "rockchip,rk3328-vop";
> +		reg = <0x0 0xff370000 0x0 0x3efc>;
> +		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH 0>;

Another of those rogue trailing zero cells has snuck in here.

<digression>
Unfortunately, even having learned the difference between drm-next and 
drm-misc-next (thanks for the pointer!) so I could apply this and the 
other series, I only managed to get it to not-quite-work on the box I'm 
currently reverse-engineering a mainline DT for (Beelink A1).

I've got a monitor connected via HDMI-DVI (which the stock 3.10 Android 
kernel *does* drive happily) - it appears to be detected, but when the 
virtual console tries to come up I just see a handful of timeout splats 
from drm_atomic_helper_wait_for_vblanks() and no signal at the monitor.

Any idea where to start debugging? (I'm 99% certain I had your clk/next 
branch pulled in as well since it looked significant, but I'll 
double-check tonight)

Robin.

> +		clocks = <&cru ACLK_VOP>, <&cru DCLK_LCDC>, <&cru HCLK_VOP>;
> +		clock-names = "aclk_vop", "dclk_vop", "hclk_vop";
> +		resets = <&cru SRST_VOP_A>, <&cru SRST_VOP_H>, <&cru SRST_VOP_D>;
> +		reset-names = "axi", "ahb", "dclk";
> +		iommus = <&vop_mmu>;
> +		status = "disabled";
> +
> +		vop_out: port {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			vop_out_hdmi: endpoint@0 {
> +				reg = <0>;
> +				remote-endpoint = <&hdmi_in_vop>;
> +			};
> +		};
> +	};
> +
>   	vop_mmu: iommu@ff373f00 {
>   		compatible = "rockchip,iommu";
>   		reg = <0x0 0xff373f00 0x0 0x100>;
> @@ -635,6 +662,35 @@
>   		status = "disabled";
>   	};
>   
> +	hdmi: hdmi@ff3c0000 {
> +		compatible = "rockchip,rk3328-dw-hdmi";
> +		reg = <0x0 0xff3c0000 0x0 0x20000>;
> +		reg-io-width = <4>;
> +		interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
> +		clocks = <&cru PCLK_HDMI>,
> +			 <&cru SCLK_HDMI_SFC>;
> +		clock-names = "iahb",
> +			      "isfr";
> +		phys = <&hdmiphy>;
> +		phy-names = "hdmi";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&hdmi_cec &hdmii2c_xfer &hdmi_hpd>;
> +		rockchip,grf = <&grf>;
> +		status = "disabled";
> +
> +		ports {
> +			hdmi_in: port {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				hdmi_in_vop: endpoint@0 {
> +					reg = <0>;
> +					remote-endpoint = <&vop_out_hdmi>;
> +				};
> +			};
> +		};
> +	};
> +
>   	hdmiphy: phy@ff430000 {
>   		compatible = "rockchip,rk3328-hdmi-phy";
>   		reg = <0x0 0xff430000 0x0 0x10000>;
> 

Re: [PATCH 2/3] arm64: dts: rockchip: add rk3328 display nodes

[Heiko Stuebner]

Hi Robin,

Am Dienstag, 20. Februar 2018, 14:14:31 CET schrieb Robin Murphy:
> On 16/02/18 22:38, Heiko Stuebner wrote:
> > Add the chain of display nodes from the core display-subsystem
> > through the one vop to the dw-hdmi output.
> > 
> > Signed-off-by: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
> > ---
> >   arch/arm64/boot/dts/rockchip/rk3328.dtsi | 56 ++++++++++++++++++++++++++++++++
> >   1 file changed, 56 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> > index 1615effcc191..65b7d460a044 100644
> > --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> > +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> > @@ -185,6 +185,11 @@
> >   		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
> >   	};
> >   
> > +	display_subsystem: display-subsystem {
> > +		compatible = "rockchip,display-subsystem";
> > +		ports = <&vop_out>;
> > +	};
> > +
> >   	psci {
> >   		compatible = "arm,psci-1.0", "arm,psci-0.2";
> >   		method = "smc";
> > @@ -626,6 +631,28 @@
> >   		status = "disabled";
> >   	};
> >   
> > +	vop: vop@ff370000 {
> > +		compatible = "rockchip,rk3328-vop";
> > +		reg = <0x0 0xff370000 0x0 0x3efc>;
> > +		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH 0>;
> 
> Another of those rogue trailing zero cells has snuck in here.

Oh great.
Either they are missing when needed or trailing when not needed :-) .


> <digression>
> Unfortunately, even having learned the difference between drm-next and 
> drm-misc-next (thanks for the pointer!) so I could apply this and the 
> other series, I only managed to get it to not-quite-work on the box I'm 
> currently reverse-engineering a mainline DT for (Beelink A1).
> 
> I've got a monitor connected via HDMI-DVI (which the stock 3.10 Android 
> kernel *does* drive happily) - it appears to be detected, but when the 
> virtual console tries to come up I just see a handful of timeout splats 
> from drm_atomic_helper_wait_for_vblanks() and no signal at the monitor.
> 
> Any idea where to start debugging? (I'm 99% certain I had your clk/next 
> branch pulled in as well since it looked significant, but I'll 
> double-check tonight)

I guess first interesting point would be to check if the edid of the monitor
got read correctly. There are a bunch of funny GRF options related to i2c
voltages and such that get wiggled on hotplug events and they're not
really documented at all. (see all the *_5V_* constants in the dw-hdmi).

In my current setup (with a VS0801H hdmi switch between my boardfarm
and display) it's reading the monitor edid correctly every time, but I
remember having lots of issues with getting an actual edid at all.
I may need to check without the switch if this somehow improves the
situation in my installation.

Also, you could give Rockchip's 4.4 vendor kernel a try [0]. I wasn't even
aware that rk3328 boxes used a 3.10 kernel in the wild :-) . The 4.4 kernel
was similarly picky with my monitors edid, if I remember correctly.

Maybe also check your regulators (if any) if they get turned off.

And finally, for completenes sake, I do have a branch sitting on top of
lima kernel patches and recent mainline that includes everything and
does bring up the display [and partial gpu support :-) ] for me at [1].


Heiko

[0] https://github.com/rockchip-linux/kernel
[1] https://github.com/mmind/linux-rockchip/tree/devel/lima-yuq-mali450

Re: [PATCH 2/3] arm64: dts: rockchip: add rk3328 display nodes

[Robin Murphy]

On 20/02/18 22:08, Heiko Stuebner wrote:
> Hi Robin,
> 
> Am Dienstag, 20. Februar 2018, 14:14:31 CET schrieb Robin Murphy:
>> On 16/02/18 22:38, Heiko Stuebner wrote:
>>> Add the chain of display nodes from the core display-subsystem
>>> through the one vop to the dw-hdmi output.
>>>
>>> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
>>> ---
>>>    arch/arm64/boot/dts/rockchip/rk3328.dtsi | 56 ++++++++++++++++++++++++++++++++
>>>    1 file changed, 56 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
>>> index 1615effcc191..65b7d460a044 100644
>>> --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
>>> +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
>>> @@ -185,6 +185,11 @@
>>>    		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
>>>    	};
>>>    
>>> +	display_subsystem: display-subsystem {
>>> +		compatible = "rockchip,display-subsystem";
>>> +		ports = <&vop_out>;
>>> +	};
>>> +
>>>    	psci {
>>>    		compatible = "arm,psci-1.0", "arm,psci-0.2";
>>>    		method = "smc";
>>> @@ -626,6 +631,28 @@
>>>    		status = "disabled";
>>>    	};
>>>    
>>> +	vop: vop@ff370000 {
>>> +		compatible = "rockchip,rk3328-vop";
>>> +		reg = <0x0 0xff370000 0x0 0x3efc>;
>>> +		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH 0>;
>>
>> Another of those rogue trailing zero cells has snuck in here.
> 
> Oh great.
> Either they are missing when needed or trailing when not needed :-) .
> 
> 
>> <digression>
>> Unfortunately, even having learned the difference between drm-next and
>> drm-misc-next (thanks for the pointer!) so I could apply this and the
>> other series, I only managed to get it to not-quite-work on the box I'm
>> currently reverse-engineering a mainline DT for (Beelink A1).
>>
>> I've got a monitor connected via HDMI-DVI (which the stock 3.10 Android
>> kernel *does* drive happily) - it appears to be detected, but when the
>> virtual console tries to come up I just see a handful of timeout splats
>> from drm_atomic_helper_wait_for_vblanks() and no signal at the monitor.
>>
>> Any idea where to start debugging? (I'm 99% certain I had your clk/next
>> branch pulled in as well since it looked significant, but I'll
>> double-check tonight)
> 
> I guess first interesting point would be to check if the edid of the monitor
> got read correctly. There are a bunch of funny GRF options related to i2c
> voltages and such that get wiggled on hotplug events and they're not
> really documented at all. (see all the *_5V_* constants in the dw-hdmi).

Cheers, that was indeed a fruitful starting point - EDID wasn't exactly 
the problem, but having decoded the blob dumped out of sysfs to check 
validity it appears the only native resolution mode my ancient Iiyama is 
advertising is 1280x1024@75Hz. That prompted me to go and faff with the 
TV (the only actual HDMI endpoint I own), and sure enough a 'regular' 
1920x1080@60Hz works just fine. So, for patches 1 and 2 (fixed up to 
avoid the DTC warning):

Tested-by: Robin Murphy <robin.murphy@arm.com>

I guess it might just be a case of the VOP and/or HDMI clocks struggling 
to attain an appropriate pixel clock, but the failure mode is really 
non-obvious - if the monitor is plugged in at boot I get 4 or 5 of the 
DRM_WARNs at various points, about 160 VOP interrupts somewhere along 
the line, and HDMI interrupts at a constant rate of around two per 
second; plugging it in after boot, however, just seems to silently do 
nothing (IIRC hotplugging the TV similarly did work as expected). If I 
find the time I might go back and try forcing a 60Hz mode to narrow 
things down a bit more.

Thanks,
Robin.

> In my current setup (with a VS0801H hdmi switch between my boardfarm
> and display) it's reading the monitor edid correctly every time, but I
> remember having lots of issues with getting an actual edid at all.
> I may need to check without the switch if this somehow improves the
> situation in my installation.
> 
> Also, you could give Rockchip's 4.4 vendor kernel a try [0]. I wasn't even
> aware that rk3328 boxes used a 3.10 kernel in the wild :-) . The 4.4 kernel
> was similarly picky with my monitors edid, if I remember correctly.
> 
> Maybe also check your regulators (if any) if they get turned off.
> 
> And finally, for completenes sake, I do have a branch sitting on top of
> lima kernel patches and recent mainline that includes everything and
> does bring up the display [and partial gpu support :-) ] for me at [1].
> 
> 
> Heiko
> 
> [0] https://github.com/rockchip-linux/kernel
> [1] https://github.com/mmind/linux-rockchip/tree/devel/lima-yuq-mali450
> 
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip
> 

Re: [PATCH 2/3] arm64: dts: rockchip: add rk3328 display nodes

[Heiko Stuebner]

Am Mittwoch, 21. Februar 2018, 13:04:11 CET schrieb Robin Murphy:
> On 20/02/18 22:08, Heiko Stuebner wrote:
> > Hi Robin,
> > 
> > Am Dienstag, 20. Februar 2018, 14:14:31 CET schrieb Robin Murphy:
> >> On 16/02/18 22:38, Heiko Stuebner wrote:
> >>> Add the chain of display nodes from the core display-subsystem
> >>> through the one vop to the dw-hdmi output.
> >>>
> >>> Signed-off-by: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
> >>> ---
> >>>    arch/arm64/boot/dts/rockchip/rk3328.dtsi | 56 ++++++++++++++++++++++++++++++++
> >>>    1 file changed, 56 insertions(+)
> >>>
> >>> diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> >>> index 1615effcc191..65b7d460a044 100644
> >>> --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> >>> +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
> >>> @@ -185,6 +185,11 @@
> >>>    		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
> >>>    	};
> >>>    
> >>> +	display_subsystem: display-subsystem {
> >>> +		compatible = "rockchip,display-subsystem";
> >>> +		ports = <&vop_out>;
> >>> +	};
> >>> +
> >>>    	psci {
> >>>    		compatible = "arm,psci-1.0", "arm,psci-0.2";
> >>>    		method = "smc";
> >>> @@ -626,6 +631,28 @@
> >>>    		status = "disabled";
> >>>    	};
> >>>    
> >>> +	vop: vop@ff370000 {
> >>> +		compatible = "rockchip,rk3328-vop";
> >>> +		reg = <0x0 0xff370000 0x0 0x3efc>;
> >>> +		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH 0>;
> >>
> >> Another of those rogue trailing zero cells has snuck in here.
> > 
> > Oh great.
> > Either they are missing when needed or trailing when not needed :-) .
> > 
> > 
> >> <digression>
> >> Unfortunately, even having learned the difference between drm-next and
> >> drm-misc-next (thanks for the pointer!) so I could apply this and the
> >> other series, I only managed to get it to not-quite-work on the box I'm
> >> currently reverse-engineering a mainline DT for (Beelink A1).
> >>
> >> I've got a monitor connected via HDMI-DVI (which the stock 3.10 Android
> >> kernel *does* drive happily) - it appears to be detected, but when the
> >> virtual console tries to come up I just see a handful of timeout splats
> >> from drm_atomic_helper_wait_for_vblanks() and no signal at the monitor.
> >>
> >> Any idea where to start debugging? (I'm 99% certain I had your clk/next
> >> branch pulled in as well since it looked significant, but I'll
> >> double-check tonight)
> > 
> > I guess first interesting point would be to check if the edid of the monitor
> > got read correctly. There are a bunch of funny GRF options related to i2c
> > voltages and such that get wiggled on hotplug events and they're not
> > really documented at all. (see all the *_5V_* constants in the dw-hdmi).
> 
> Cheers, that was indeed a fruitful starting point - EDID wasn't exactly 
> the problem, but having decoded the blob dumped out of sysfs to check 
> validity it appears the only native resolution mode my ancient Iiyama is 
> advertising is 1280x1024@75Hz. That prompted me to go and faff with the 
> TV (the only actual HDMI endpoint I own), and sure enough a 'regular' 
> 1920x1080@60Hz works just fine. So, for patches 1 and 2 (fixed up to 
> avoid the DTC warning):
> 
> Tested-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>

Nice :-)

> I guess it might just be a case of the VOP and/or HDMI clocks struggling 
> to attain an appropriate pixel clock, but the failure mode is really 
> non-obvious - if the monitor is plugged in at boot I get 4 or 5 of the 
> DRM_WARNs at various points, about 160 VOP interrupts somewhere along 
> the line, and HDMI interrupts at a constant rate of around two per 
> second; plugging it in after boot, however, just seems to silently do 
> nothing (IIRC hotplugging the TV similarly did work as expected). If I 
> find the time I might go back and try forcing a 60Hz mode to narrow 
> things down a bit more.

As I only have a standard 1080p display it's hard to check those edge cases,
but the struggle for display frequencies follows us for quite some time
already.

The current default is to source the display clock from the hdmi-phy
which contains its own pll, so I guess first order of business should
probably be to determine which rate gets requested for your display
and which rate gets set - as I'm guessing that we're missing rates.

DRM_WARNS would be interesting I guess, can you post them?
As for your hdmi-interrupts, from the dw-hdmi or the hdmi-phy?

Re: [PATCH 2/3] arm64: dts: rockchip: add rk3328 display nodes

[Robin Murphy]

On 21/02/18 21:57, Heiko Stuebner wrote:
[...]
>> I guess it might just be a case of the VOP and/or HDMI clocks struggling
>> to attain an appropriate pixel clock, but the failure mode is really
>> non-obvious - if the monitor is plugged in at boot I get 4 or 5 of the
>> DRM_WARNs at various points, about 160 VOP interrupts somewhere along
>> the line, and HDMI interrupts at a constant rate of around two per
>> second; plugging it in after boot, however, just seems to silently do
>> nothing (IIRC hotplugging the TV similarly did work as expected). If I
>> find the time I might go back and try forcing a 60Hz mode to narrow
>> things down a bit more.
> 
> As I only have a standard 1080p display it's hard to check those edge cases,
> but the struggle for display frequencies follows us for quite some time
> already.
> 
> The current default is to source the display clock from the hdmi-phy
> which contains its own pll, so I guess first order of business should
> probably be to determine which rate gets requested for your display
> and which rate gets set - as I'm guessing that we're missing rates.
> 
> DRM_WARNS would be interesting I guess, can you post them?
> As for your hdmi-interrupts, from the dw-hdmi or the hdmi-phy?

Oops, my mistake, it's just a regular WARN() at 
drivers/gpu/drm/drm_atomic_helper.c:1348 - the IRQs I'm 99% sure were 
from dw-hdmi (I really should stop doing this way past bedtime then 
trying to remember the details days later...)

I'll turn on all the debug options and do some more digging over the 
weekend (and actually save some logs this time!)

Robin.

Re: [PATCH 2/3] arm64: dts: rockchip: add rk3328 display nodes

[Robin Murphy]

[-- Attachment #1: Type: text/plain, Size: 2359 bytes --]

Hi Heiko,

On 22/02/18 13:01, Robin Murphy wrote:
> On 21/02/18 21:57, Heiko Stuebner wrote:
> [...]
>>> I guess it might just be a case of the VOP and/or HDMI clocks struggling
>>> to attain an appropriate pixel clock, but the failure mode is really
>>> non-obvious - if the monitor is plugged in at boot I get 4 or 5 of the
>>> DRM_WARNs at various points, about 160 VOP interrupts somewhere along
>>> the line, and HDMI interrupts at a constant rate of around two per
>>> second; plugging it in after boot, however, just seems to silently do
>>> nothing (IIRC hotplugging the TV similarly did work as expected). If I
>>> find the time I might go back and try forcing a 60Hz mode to narrow
>>> things down a bit more.
>>
>> As I only have a standard 1080p display it's hard to check those edge 
>> cases,
>> but the struggle for display frequencies follows us for quite some time
>> already.
>>
>> The current default is to source the display clock from the hdmi-phy
>> which contains its own pll, so I guess first order of business should
>> probably be to determine which rate gets requested for your display
>> and which rate gets set - as I'm guessing that we're missing rates.
>>
>> DRM_WARNS would be interesting I guess, can you post them?
>> As for your hdmi-interrupts, from the dw-hdmi or the hdmi-phy?
> 
> Oops, my mistake, it's just a regular WARN() at 
> drivers/gpu/drm/drm_atomic_helper.c:1348 - the IRQs I'm 99% sure were 
> from dw-hdmi (I really should stop doing this way past bedtime then 
> trying to remember the details days later...)
> 
> I'll turn on all the debug options and do some more digging over the 
> weekend (and actually save some logs this time!)

OK, I found time to do some quick testing last night (verbose log 
attached) - it does indeed look like pretty much all the modes are being 
rejected. Of all the various overrides I tried, "video=800x600@60" does 
actually work, but it's the only one (not even plain old 640x480 VGA!)

Interestingly, the vblank timeouts only happen for 1280x1024 modes - 
lower resolutions (e.g. 1024x768) still don't produce an output signal, 
but don't provoke the warning either.

FWIW, the above behaviours also seem reproducible with 
"drm.edid_firmware=edid/{1024x768,1280x1024}.bin" if that helps with 
testing. Otherwise, let me know where to start hacking on drivers ;)

Robin.

[-- Attachment #2: dmesg.txt --]
[-- Type: text/plain, Size: 73621 bytes --]

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 4.16.0-rc1-01570-gfe442b615ed0 (robin@m750) (gcc version 7.3.0 (GCC)) #55 SMP PREEMPT Wed Feb 21 00:58:49 GMT 2018
[    0.000000] Machine model: Beelink A1
[    0.000000] earlycon: uart8250 at MMIO32 0x00000000ff130000 (options '')
[    0.000000] bootconsole [uart8250] enabled
[    0.000000] efi: Getting EFI parameters from FDT:
[    0.000000] efi: UEFI not found.
[    0.000000] cma: Reserved 16 MiB at 0x00000000fe000000
[    0.000000] On node 0 totalpages: 1043968
[    0.000000]   DMA32 zone: 16312 pages used for memmap
[    0.000000]   DMA32 zone: 0 pages reserved
[    0.000000]   DMA32 zone: 1043968 pages, LIFO batch:31
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv1.0 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.0
[    0.000000] random: fast init done
[    0.000000] percpu: Embedded 23 pages/cpu @        (ptrval) s55832 r8192 d30184 u94208
[    0.000000] pcpu-alloc: s55832 r8192 d30184 u94208 alloc=23*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: enabling workaround for ARM erratum 845719
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 1027656
[    0.000000] Kernel command line: earlycon=uart8250,mmio32,0xff130000 root=LABEL=linux-root rootwait rootfstype=ext4 rw drm.debug=0x3f loglevel=9 clk_ignore_unused pd_ignore_unused
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.000000] Memory: 4069936K/4175872K available (7868K kernel code, 578K rwdata, 2832K rodata, 704K init, 332K bss, 89552K reserved, 16384K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] 	Tasks RCU enabled.
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
[    0.000007] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
[    0.001379] Console: colour dummy device 80x25
[    0.001806] console [tty0] enabled
[    0.002141] bootconsole [uart8250] disabled
[    0.002570] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.002605] pid_max: default: 32768 minimum: 301
[    0.002744] Security Framework initialized
[    0.002840] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
[    0.002892] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes)
[    0.038295] ASID allocator initialised with 32768 entries
[    0.058282] Hierarchical SRCU implementation.
[    0.078731] EFI services will not be available.
[    0.098353] smp: Bringing up secondary CPUs ...
[    0.168564] Detected VIPT I-cache on CPU1
[    0.168642] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[    0.238645] Detected VIPT I-cache on CPU2
[    0.238707] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[    0.308737] Detected VIPT I-cache on CPU3
[    0.308794] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[    0.308907] smp: Brought up 1 node, 4 CPUs
[    0.309012] SMP: Total of 4 processors activated.
[    0.309032] CPU features: detected feature: 32-bit EL0 Support
[    0.309052] CPU features: detected feature: Kernel page table isolation (KPTI)
[    0.312557] CPU: All CPU(s) started at EL2
[    0.312593] alternatives: patching kernel code
[    0.315003] devtmpfs: initialized
[    0.324361] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.324426] futex hash table entries: 1024 (order: 5, 131072 bytes)
[    0.325360] pinctrl core: initialized pinctrl subsystem
[    0.326085] DMI not present or invalid.
[    0.326517] NET: Registered protocol family 16
[    0.327164] audit: initializing netlink subsys (disabled)
[    0.327409] audit: type=2000 audit(0.320:1): state=initialized audit_enabled=0 res=1
[    0.328187] cpuidle: using governor ladder
[    0.328376] cpuidle: using governor menu
[    0.328694] vdso: 2 pages (1 code @ 00000000f44c6ca6, 1 data @ 00000000c356e382)
[    0.328735] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.339734] DMA: preallocated 256 KiB pool for atomic allocations
[    0.339889] Serial: AMBA PL011 UART driver
[    0.367560] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.368073] cryptd: max_cpu_qlen set to 1000
[    0.369281] iommu: Adding device ff370000.vop to group 0
[    0.370120] SCSI subsystem initialized
[    0.370476] libata version 3.00 loaded.
[    0.370769] usbcore: registered new interface driver usbfs
[    0.370838] usbcore: registered new interface driver hub
[    0.370952] usbcore: registered new device driver usb
[    0.371263] media: Linux media interface: v0.10
[    0.371317] Linux video capture interface: v2.00
[    0.371431] pps_core: LinuxPPS API ver. 1 registered
[    0.371452] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.371495] PTP clock support registered
[    0.371762] Advanced Linux Sound Architecture Driver Initialized.
[    0.372846] clocksource: Switched to clocksource arch_sys_counter
[    0.373050] VFS: Disk quotas dquot_6.6.0
[    0.373145] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.381554] NET: Registered protocol family 2
[    0.382210] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes)
[    0.382330] TCP established hash table entries: 32768 (order: 6, 262144 bytes)
[    0.382755] TCP bind hash table entries: 32768 (order: 7, 524288 bytes)
[    0.383697] TCP: Hash tables configured (established 32768 bind 32768)
[    0.383975] UDP hash table entries: 2048 (order: 4, 65536 bytes)
[    0.384138] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes)
[    0.384523] NET: Registered protocol family 1
[    0.385154] RPC: Registered named UNIX socket transport module.
[    0.385184] RPC: Registered udp transport module.
[    0.385202] RPC: Registered tcp transport module.
[    0.385220] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.385491] Unpacking initramfs...
[    0.755810] Freeing initrd memory: 4844K
[    0.756996] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[    0.757304] kvm [1]: 8-bit VMID
[    0.757323] kvm [1]: IDMAP page: 2822000
[    0.757341] kvm [1]: HYP VA range: 4000000000:7fffffffff
[    0.758073] kvm [1]: vgic-v2@ff814000
[    0.758191] kvm [1]: vgic interrupt IRQ1
[    0.758226] kvm [1]: virtual timer IRQ4
[    0.758352] kvm [1]: Hyp mode initialized successfully
[    0.762161] Initialise system trusted keyrings
[    0.762401] workingset: timestamp_bits=62 max_order=20 bucket_order=0
[    0.771640] NFS: Registering the id_resolver key type
[    0.771706] Key type id_resolver registered
[    0.771725] Key type id_legacy registered
[    0.771753] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.772019] 9p: Installing v9fs 9p2000 file system support
[    0.773869] Key type asymmetric registered
[    0.773907] Asymmetric key parser 'x509' registered
[    0.774181] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[    0.774215] io scheduler noop registered (default)
[    0.774489] io scheduler cfq registered
[    0.774511] io scheduler mq-deadline registered
[    0.774530] io scheduler kyber registered
[    0.780009] dma-pl330 ff1f0000.dmac: Loaded driver for PL330 DMAC-241330
[    0.780058] dma-pl330 ff1f0000.dmac: 	DBUFF-128x8bytes Num_Chans-8 Num_Peri-20 Num_Events-16
[    0.783949] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.785726] ff130000.serial: ttyS2 at MMIO 0xff130000 (irq = 12, base_baud = 1500000) is a 16550A
[    0.850040] console [ttyS2] enabled
[    0.851224] [drm:drm_core_init] Initialized
[    0.853167] [drm:rockchip_drm_bind] IOMMU context initialized (aperture: 0x0-0xffffffff)
[    0.854980] rockchip-vop ff370000.vop: [drm:vop_reg_set] Warning: not support gate
[    0.855676] rockchip-vop ff370000.vop: [drm:vop_reg_set] Warning: not support gate
[    0.856361] rockchip-vop ff370000.vop: [drm:vop_reg_set] Warning: not support gate
[    0.857133] rockchip-drm display-subsystem: bound ff370000.vop (ops vop_component_ops)
[    0.857917] rockchip-drm display-subsystem: failed to bind ff3c0000.hdmi (ops dw_hdmi_rockchip_ops): -517
[    0.859118] rockchip-drm display-subsystem: master bind failed: -517
[    0.869964] loop: module loaded
[    0.871350] libphy: Fixed MDIO Bus: probed
[    0.872233] tun: Universal TUN/TAP device driver, 1.6
[    0.874075] rk_gmac-dwmac ff540000.ethernet: PTP uses main clock
[    0.874677] rk_gmac-dwmac ff540000.ethernet: phy regulator is not available yet, deferred probing
[    0.876063] VFIO - User Level meta-driver version: 0.3
[    0.877713] dwc3 ff600000.dwc3: couldn't register cable notifier
[    0.878275] dwc3 ff600000.dwc3: failed to initialize dual-role
[    0.878880] dwc3: probe of ff600000.dwc3 failed with error -22
[    0.879881] rockchip-usb2phy ff450000.syscon:usb2-phy@100: Requested PHY is disabled
[    0.880621] dwc2 ff580000.usb: ff580000.usb supply vusb_d not found, using dummy regulator
[    0.881442] dwc2 ff580000.usb: ff580000.usb supply vusb_a not found, using dummy regulator
[    0.892711] dwc2 ff580000.usb: DWC OTG Controller
[    0.893218] dwc2 ff580000.usb: new USB bus registered, assigned bus number 1
[    0.893898] dwc2 ff580000.usb: irq 30, io mem 0xff580000
[    0.895285] hub 1-0:1.0: USB hub found
[    0.895673] hub 1-0:1.0: 1 port detected
[    0.896637] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.897231] ehci-platform: EHCI generic platform driver
[    0.900143] ehci-platform ff5c0000.usb: EHCI Host Controller
[    0.900683] ehci-platform ff5c0000.usb: new USB bus registered, assigned bus number 2
[    0.901796] ehci-platform ff5c0000.usb: irq 31, io mem 0xff5c0000
[    0.922902] ehci-platform ff5c0000.usb: USB 2.0 started, EHCI 1.00
[    0.924286] hub 2-0:1.0: USB hub found
[    0.924669] hub 2-0:1.0: 1 port detected
[    0.925503] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.926090] ohci-platform: OHCI generic platform driver
[    0.926949] ohci-platform ff5d0000.usb: Generic Platform OHCI controller
[    0.927578] ohci-platform ff5d0000.usb: new USB bus registered, assigned bus number 3
[    0.928580] ohci-platform ff5d0000.usb: irq 32, io mem 0xff5d0000
[    0.997689] hub 3-0:1.0: USB hub found
[    0.998077] hub 3-0:1.0: 1 port detected
[    0.999313] usbcore: registered new interface driver usb-storage
[    1.001069] i2c /dev entries driver
[    1.002893] rk808 1-0018: chip id: 0x8050
[    1.004883] rk808-regulator rk808-regulator: there is no dvs0 gpio
[    1.005469] rk808-regulator rk808-regulator: there is no dvs1 gpio
[    1.006087] DCDC_REG1: supplied by regulator-dummy
[    1.007131] DCDC_REG2: supplied by regulator-dummy
[    1.007941] DCDC_REG3: supplied by regulator-dummy
[    1.008576] DCDC_REG4: supplied by regulator-dummy
[    1.009407] LDO_REG1: supplied by regulator-dummy
[    1.010994] LDO_REG2: supplied by regulator-dummy
[    1.012566] LDO_REG3: supplied by regulator-dummy
[    1.014637] rk3x-i2c ff160000.i2c: Initialized RK3xxx I2C bus at 00000000000ddb74
[    1.017106] sdhci: Secure Digital Host Controller Interface driver
[    1.017676] sdhci: Copyright(c) Pierre Ossman
[    1.018103] Synopsys Designware Multimedia Card Interface Driver
[    1.019647] dwmmc_rockchip ff500000.dwmmc: IDMAC supports 32-bit address mode.
[    1.020517] dwmmc_rockchip ff500000.dwmmc: Using internal DMA controller.
[    1.021144] dwmmc_rockchip ff500000.dwmmc: Version ID is 270a
[    1.021741] dwmmc_rockchip ff500000.dwmmc: DW MMC controller at irq 27,32 bit host data width,256 deep fifo
[    1.035584] mmc_host mmc0: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
[    1.049951] dwmmc_rockchip ff520000.dwmmc: IDMAC supports 32-bit address mode.
[    1.051073] dwmmc_rockchip ff520000.dwmmc: Using internal DMA controller.
[    1.051709] dwmmc_rockchip ff520000.dwmmc: Version ID is 270a
[    1.052307] dwmmc_rockchip ff520000.dwmmc: DW MMC controller at irq 28,32 bit host data width,256 deep fifo
[    1.053648] mmc_host mmc1: card is non-removable.
[    1.066837] mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
[    1.080437] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.082392] ledtrig-cpu: registered to indicate activity on CPUs
[    1.083759] usbcore: registered new interface driver usbhid
[    1.084322] usbhid: USB HID core driver
[    1.086500] NET: Registered protocol family 17
[    1.087027] 9pnet: Installing 9P2000 support
[    1.087549] Key type dns_resolver registered
[    1.088834] registered taskstats version 1
[    1.089218] Loading compiled-in X.509 certificates
[    1.105826] [drm:rockchip_drm_bind] IOMMU context initialized (aperture: 0x0-0xffffffff)
[    1.107639] rockchip-vop ff370000.vop: [drm:vop_reg_set] Warning: not support gate
[    1.108335] rockchip-vop ff370000.vop: [drm:vop_reg_set] Warning: not support gate
[    1.109020] rockchip-vop ff370000.vop: [drm:vop_reg_set] Warning: not support gate
[    1.109805] rockchip-drm display-subsystem: bound ff370000.vop (ops vop_component_ops)
[    1.110792] dwhdmi-rockchip ff3c0000.hdmi: Detected HDMI TX controller v2.11a with HDCP (inno_dw_hdmi_phy2)
[    1.112332] dwhdmi-rockchip ff3c0000.hdmi: registered DesignWare HDMI I2C bus driver
[    1.114255] rockchip-drm display-subsystem: bound ff3c0000.hdmi (ops dw_hdmi_rockchip_ops)
[    1.115023] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.115618] [drm] No driver support for vblank timestamp query.
[    1.115734] mmc_host mmc0: Bus speed (slot 0) = 37500000Hz (slot req 37500000Hz, actual 37500000HZ div = 0)
[    1.116184] [drm:drm_mode_object_get] OBJ ID: 33 (2)
[    1.117104] mmc0: new high speed SDHC card at address aaaa
[    1.117482] [drm:drm_setup_crtcs] 
[    1.118306] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:33:HDMI-A-1]
[    1.119047] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:33:HDMI-A-1] status updated from unknown to connected
[    1.119381] mmcblk0: mmc0:aaaa AGGCD 29.7 GiB 
[    1.136844] mmc_host mmc1: Bus speed (slot 0) = 200000000Hz (slot req 200000000Hz, actual 200000000HZ div = 0)
[    1.140697]  mmcblk0: p1 p2 p3 p4 p5 p6 p7
[    1.155731] dwmmc_rockchip ff520000.dwmmc: All phases work, using default phase 0.
[    1.156710] mmc1: new HS200 MMC card at address 0001
[    1.158642] mmcblk1: mmc1:0001 NCard  14.5 GiB 
[    1.160201] mmcblk1boot0: mmc1:0001 NCard  partition 1 4.00 MiB
[    1.161874] mmcblk1boot1: mmc1:0001 NCard  partition 2 4.00 MiB
[    1.162683] mmcblk1rpmb: mmc1:0001 NCard  partition 3 4.00 MiB, chardev (243:0)
[    1.175572] [drm:drm_add_display_info] non_desktop set to 0
[    1.176121] [drm:drm_add_edid_modes] ELD: no CEA Extension found
[    1.176671] [drm:drm_add_display_info] non_desktop set to 0
[    1.177457] [drm:drm_mode_debug_printmodeline] Modeline 35:"1280x1024" 75 135000 1280 1296 1440 1688 1024 1025 1028 1066 0x48 0x5
[    1.178509] [drm:drm_mode_prune_invalid] Not using 1280x1024 mode: BAD
[    1.179114] [drm:drm_mode_debug_printmodeline] Modeline 40:"640x480" 0 31500 640 656 720 840 480 481 484 500 0x40 0xa
[    1.180066] [drm:drm_mode_prune_invalid] Not using 640x480 mode: BAD
[    1.180651] [drm:drm_mode_debug_printmodeline] Modeline 41:"640x480" 0 31500 640 664 704 832 480 489 492 520 0x40 0xa
[    1.181605] [drm:drm_mode_prune_invalid] Not using 640x480 mode: BAD
[    1.182190] [drm:drm_mode_debug_printmodeline] Modeline 42:"640x480" 0 30240 640 704 768 864 480 483 486 525 0x40 0xa
[    1.183174] [drm:drm_mode_prune_invalid] Not using 640x480 mode: BAD
[    1.183763] [drm:drm_mode_debug_printmodeline] Modeline 43:"640x480" 0 25175 640 656 752 800 480 490 492 525 0x40 0xa
[    1.184715] [drm:drm_mode_prune_invalid] Not using 640x480 mode: BAD
[    1.185300] [drm:drm_mode_debug_printmodeline] Modeline 44:"720x400" 0 28320 720 738 846 900 400 412 414 449 0x40 0x6
[    1.186252] [drm:drm_mode_prune_invalid] Not using 720x400 mode: BAD
[    1.186837] [drm:drm_mode_debug_printmodeline] Modeline 46:"1024x768" 0 78750 1024 1040 1136 1312 768 769 772 800 0x40 0x5
[    1.187827] [drm:drm_mode_prune_invalid] Not using 1024x768 mode: BAD
[    1.188420] [drm:drm_mode_debug_printmodeline] Modeline 47:"1024x768" 0 75000 1024 1048 1184 1328 768 771 777 806 0x40 0xa
[    1.189411] [drm:drm_mode_prune_invalid] Not using 1024x768 mode: BAD
[    1.190004] [drm:drm_mode_debug_printmodeline] Modeline 49:"832x624" 0 57284 832 864 928 1152 624 625 628 667 0x40 0xa
[    1.190964] [drm:drm_mode_prune_invalid] Not using 832x624 mode: BAD
[    1.191550] [drm:drm_mode_debug_printmodeline] Modeline 50:"800x600" 0 49500 800 816 896 1056 600 601 604 625 0x40 0x5
[    1.192510] [drm:drm_mode_prune_invalid] Not using 800x600 mode: BAD
[    1.193119] [drm:drm_mode_debug_printmodeline] Modeline 51:"800x600" 0 50000 800 856 976 1040 600 637 643 666 0x40 0x5
[    1.194080] [drm:drm_mode_prune_invalid] Not using 800x600 mode: BAD
[    1.194670] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:33:HDMI-A-1] probed modes :
[    1.195473] [drm:drm_mode_debug_printmodeline] Modeline 36:"1280x1024" 60 108000 1280 1328 1440 1688 1024 1025 1028 1066 0x40 0x5
[    1.196524] [drm:drm_mode_debug_printmodeline] Modeline 37:"1152x864" 75 108000 1152 1216 1344 1600 864 865 868 900 0x40 0x5
[    1.197538] [drm:drm_mode_debug_printmodeline] Modeline 48:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa
[    1.198546] [drm:drm_mode_debug_printmodeline] Modeline 38:"800x600" 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5
[    1.199521] [drm:drm_mode_debug_printmodeline] Modeline 39:"800x600" 56 36000 800 824 896 1024 600 601 603 625 0x40 0x5
[    1.200495] [drm:drm_setup_crtcs] connector 33 enabled? yes
[    1.201006] [drm:drm_setup_crtcs] looking for cmdline mode on connector 33
[    1.201628] [drm:drm_setup_crtcs] looking for preferred mode on connector 33 0
[    1.202283] [drm:drm_setup_crtcs] found mode 1280x1024
[    1.202753] [drm:drm_setup_crtcs] picking CRTCs for 4096x4096 config
[    1.203355] [drm:drm_setup_crtcs] desired mode 1280x1024 set on crtc 30 (0,0)
[    1.204009] [drm:drm_mode_object_get] OBJ ID: 33 (2)
[    1.213174] [drm:rockchip_drm_fbdev_create] FB [1280x1024]-24 kvaddr=0000000075eecd92 offset=0 size=5242880
[    1.214696] [drm:drm_atomic_state_init] Allocated atomic state 00000000b0f7bedf
[    1.214715] [drm:drm_atomic_get_plane_state] Added [PLANE:28:plane-0] 000000009cacd807 state to 00000000b0f7bedf
[    1.214728] [drm:drm_atomic_get_plane_state] Added [PLANE:29:plane-1] 00000000af4c526d state to 00000000b0f7bedf
[    1.214737] [drm:drm_atomic_set_crtc_for_plane] Link plane state 00000000af4c526d to [NOCRTC]
[    1.214747] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state 00000000af4c526d
[    1.214760] [drm:drm_atomic_get_plane_state] Added [PLANE:31:plane-2] 00000000522397e4 state to 00000000b0f7bedf
[    1.214768] [drm:drm_atomic_set_crtc_for_plane] Link plane state 00000000522397e4 to [NOCRTC]
[    1.214776] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state 00000000522397e4
[    1.214792] [drm:drm_atomic_get_crtc_state] Added [CRTC:30:crtc-0] 00000000a52ed97b state to 00000000b0f7bedf
[    1.214810] [drm:drm_atomic_set_mode_for_crtc] Set [MODE:1280x1024] for CRTC state 00000000a52ed97b
[    1.214820] [drm:drm_atomic_set_crtc_for_plane] Link plane state 000000009cacd807 to [CRTC:30:crtc-0]
[    1.214831] [drm:drm_atomic_set_fb_for_plane] Set [FB:40] for plane state 000000009cacd807
[    1.214842] [drm:drm_mode_object_get] OBJ ID: 40 (1)
[    1.214856] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:30:crtc-0] to 00000000b0f7bedf
[    1.214872] [drm:drm_mode_object_get] OBJ ID: 33 (3)
[    1.214882] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:33:HDMI-A-1] 0000000017fcdffb state to 00000000b0f7bedf
[    1.214893] [drm:drm_mode_object_get] OBJ ID: 33 (4)
[    1.214902] [drm:drm_atomic_set_crtc_for_connector] Link connector state 0000000017fcdffb to [CRTC:30:crtc-0]
[    1.214910] [drm:drm_atomic_check_only] checking 00000000b0f7bedf
[    1.214926] [drm:drm_atomic_helper_check_modeset] [CRTC:30:crtc-0] mode changed
[    1.214935] [drm:drm_atomic_helper_check_modeset] [CRTC:30:crtc-0] enable changed
[    1.214943] [drm:drm_atomic_helper_check_modeset] [CRTC:30:crtc-0] active changed
[    1.214957] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:33:HDMI-A-1]
[    1.214969] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:33:HDMI-A-1] using [ENCODER:32:TMDS-32] on [CRTC:30:crtc-0]
[    1.214980] [drm:drm_atomic_helper_check_modeset] [CRTC:30:crtc-0] needs all connectors, enable: y, active: y
[    1.214990] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:30:crtc-0] to 00000000b0f7bedf
[    1.215037] [drm:drm_atomic_commit] committing 00000000b0f7bedf
[    1.215066] [drm:drm_calc_timestamping_constants] crtc 30: hwmode: htotal 1688, vtotal 1066, vdisplay 1024
[    1.215076] [drm:drm_calc_timestamping_constants] crtc 30: clock 108000 kHz framedur 16661185 linedur 15629
[    1.215085] [drm:drm_atomic_helper_commit_modeset_disables] modeset on [ENCODER:32:TMDS-32]
[    1.215098] [drm:drm_atomic_helper_commit_modeset_enables] enabling [CRTC:30:crtc-0]
[    1.215588] [drm:drm_crtc_vblank_on] crtc 0, vblank enabled 0, inmodeset 0
[    1.215605] rockchip-vop ff370000.vop: [drm:vop_reg_set] Warning: not support pin_pol
[    1.215624] [drm:drm_atomic_helper_commit_modeset_enables] enabling [ENCODER:32:TMDS-32]
[    1.215856] [drm:drm_vblank_enable] enabling vblank on crtc 0, ret: 0
[    1.215868] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=1, diff=0, hw=0 hw_last=0
[    1.216361] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=1, diff=1, hw=0 hw_last=0
[    1.216404] [drm:drm_mode_object_get] OBJ ID: 40 (2)
[    1.216415] [drm:drm_atomic_state_default_clear] Clearing atomic state 00000000b0f7bedf
[    1.216429] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (5)
[    1.216442] [drm:__drm_atomic_state_free] Freeing atomic state 00000000b0f7bedf
[    1.216554] [drm:drm_atomic_state_init] Allocated atomic state 00000000197d29df
[    1.216566] [drm:drm_mode_object_get] OBJ ID: 40 (3)
[    1.216577] [drm:drm_atomic_get_plane_state] Added [PLANE:28:plane-0] 000000009d5a21bd state to 00000000197d29df
[    1.216588] [drm:drm_mode_object_get] OBJ ID: 41 (1)
[    1.216598] [drm:drm_atomic_get_crtc_state] Added [CRTC:30:crtc-0] 0000000029be798e state to 00000000197d29df
[    1.216609] [drm:drm_atomic_get_plane_state] Added [PLANE:29:plane-1] 00000000e0ea9681 state to 00000000197d29df
[    1.216618] [drm:drm_atomic_set_crtc_for_plane] Link plane state 00000000e0ea9681 to [NOCRTC]
[    1.216626] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state 00000000e0ea9681
[    1.216637] [drm:drm_atomic_get_plane_state] Added [PLANE:31:plane-2] 000000000be16b62 state to 00000000197d29df
[    1.216645] [drm:drm_atomic_set_crtc_for_plane] Link plane state 000000000be16b62 to [NOCRTC]
[    1.216654] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state 000000000be16b62
[    1.216665] [drm:drm_mode_object_put.part.0] OBJ ID: 41 (2)
[    1.216683] [drm:drm_atomic_set_mode_for_crtc] Set [MODE:1280x1024] for CRTC state 0000000029be798e
[    1.216692] [drm:drm_atomic_set_crtc_for_plane] Link plane state 000000009d5a21bd to [CRTC:30:crtc-0]
[    1.216701] [drm:drm_atomic_set_fb_for_plane] Set [FB:40] for plane state 000000009d5a21bd
[    1.216710] [drm:drm_mode_object_get] OBJ ID: 40 (4)
[    1.216719] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (5)
[    1.216730] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:30:crtc-0] to 00000000197d29df
[    1.216742] [drm:drm_mode_object_get] OBJ ID: 33 (5)
[    1.216751] [drm:drm_mode_object_get] OBJ ID: 33 (6)
[    1.216761] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:33:HDMI-A-1] 00000000ef486e14 state to 00000000197d29df
[    1.216772] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (6)
[    1.216781] [drm:drm_atomic_set_crtc_for_connector] Link connector state 00000000ef486e14 to [NOCRTC]
[    1.216790] [drm:drm_mode_object_get] OBJ ID: 33 (5)
[    1.216800] [drm:drm_atomic_set_crtc_for_connector] Link connector state 00000000ef486e14 to [CRTC:30:crtc-0]
[    1.216807] [drm:drm_atomic_check_only] checking 00000000197d29df
[    1.216823] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:33:HDMI-A-1]
[    1.216836] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:33:HDMI-A-1] keeps [ENCODER:32:TMDS-32], now on [CRTC:30:crtc-0]
[    1.216850] [drm:drm_atomic_commit] committing 00000000197d29df
[    1.216873] [drm:drm_calc_timestamping_constants] crtc 30: hwmode: htotal 1688, vtotal 1066, vdisplay 1024
[    1.216883] [drm:drm_calc_timestamping_constants] crtc 30: clock 108000 kHz framedur 16661185 linedur 15629
[    1.272872] ------------[ cut here ]------------
[    1.272877] [CRTC:30:crtc-0] vblank wait timed out
[    1.272937] WARNING: CPU: 1 PID: 35 at drivers/gpu/drm/drm_atomic_helper.c:1349 drm_atomic_helper_wait_for_vblanks.part.8+0x2a0/0x2a8
[    1.272940] Modules linked in:
[    1.272954] CPU: 1 PID: 35 Comm: kworker/1:1 Not tainted 4.16.0-rc1-01570-gfe442b615ed0 #55
[    1.272958] Hardware name: Beelink A1 (DT)
[    1.272973] Workqueue: events deferred_probe_work_func
[    1.272983] pstate: 40000005 (nZcv daif -PAN -UAO)
[    1.272991] pc : drm_atomic_helper_wait_for_vblanks.part.8+0x2a0/0x2a8
[    1.272998] lr : drm_atomic_helper_wait_for_vblanks.part.8+0x2a0/0x2a8
[    1.273001] sp : ffffff8008d73220
[    1.273005] x29: ffffff8008d73220 x28: 0000000000000000 
[    1.273014] x27: 0000000000000002 x26: ffffffc0f8412000 
[    1.273023] x25: 0000000000000001 x24: 0000000000000000 
[    1.273031] x23: 0000000000000030 x22: 0000000000000001 
[    1.273039] x21: ffffffc0f75d1280 x20: ffffffc0f8da1018 
[    1.273047] x19: 0000000000000000 x18: 0000000000020000 
[    1.273055] x17: 0000000000000008 x16: ffffff8008c2bc80 
[    1.273064] x15: 00000000fffffff0 x14: ffffff8008bcfc20 
[    1.273072] x13: ffffff8008c490f0 x12: ffffff8008bcf000 
[    1.273080] x11: 0000000000000000 x10: ffffff8008c48000 
[    1.273088] x9 : 0000000000000000 x8 : ffffff8008c526cc 
[    1.273096] x7 : 0000000000000000 x6 : 0000000008d5a9c9 
[    1.273104] x5 : 0000000000000000 x4 : 0000000000000000 
[    1.273112] x3 : ffffffffffffffff x2 : 00000040f53eb000 
[    1.273120] x1 : 8c20204912c27300 x0 : 0000000000000000 
[    1.273128] Call trace:
[    1.273137]  drm_atomic_helper_wait_for_vblanks.part.8+0x2a0/0x2a8
[    1.273144]  drm_atomic_helper_commit_tail_rpm+0x58/0x70
[    1.273150]  commit_tail+0x44/0x78
[    1.273156]  drm_atomic_helper_commit+0xec/0x178
[    1.273163]  drm_atomic_commit+0x50/0x60
[    1.273171]  restore_fbdev_mode_atomic+0x1b4/0x248
[    1.273178]  drm_fb_helper_pan_display+0xa4/0x1d0
[    1.273188]  fb_pan_display+0x94/0x118
[    1.273197]  bit_update_start+0x1c/0x40
[    1.273205]  fbcon_switch+0x34c/0x5a8
[    1.273215]  redraw_screen+0x170/0x280
[    1.273222]  fbcon_prepare_logo+0x318/0x398
[    1.273229]  fbcon_init+0x390/0x5a8
[    1.273237]  visual_init+0xb4/0x108
[    1.273245]  do_bind_con_driver+0x1bc/0x3c8
[    1.273253]  do_take_over_console+0xa4/0x210
[    1.273261]  do_fbcon_takeover+0x6c/0xf0
[    1.273269]  fbcon_event_notify+0x9d0/0xa48
[    1.273278]  notifier_call_chain+0x50/0x90
[    1.273285]  blocking_notifier_call_chain+0x48/0x70
[    1.273291]  fb_notifier_call_chain+0x1c/0x28
[    1.273297]  register_framebuffer+0x22c/0x338
[    1.273308]  __drm_fb_helper_initial_config_and_unlock+0x214/0x428
[    1.273316]  drm_fb_helper_initial_config+0x40/0x50
[    1.273325]  rockchip_drm_fbdev_init+0x78/0x170
[    1.273333]  rockchip_drm_bind+0xbc/0x1d8
[    1.273341]  try_to_bring_up_master+0x178/0x1d8
[    1.273348]  component_master_add_with_match+0xc0/0x118
[    1.273355]  rockchip_drm_platform_probe+0x18c/0x2a0
[    1.273362]  platform_drv_probe+0x58/0xb8
[    1.273371]  driver_probe_device+0x23c/0x310
[    1.273379]  __device_attach_driver+0x9c/0xf8
[    1.273387]  bus_for_each_drv+0x68/0xd0
[    1.273395]  __device_attach+0xd8/0x138
[    1.273403]  device_initial_probe+0x10/0x18
[    1.273411]  bus_probe_device+0x94/0xa0
[    1.273418]  deferred_probe_work_func+0xa0/0x148
[    1.273427]  process_one_work+0x1d4/0x330
[    1.273433]  worker_thread+0x244/0x470
[    1.273442]  kthread+0x128/0x130
[    1.273451]  ret_from_fork+0x10/0x18
[    1.273456] ---[ end trace 68a2b16ad2774692 ]---
[    1.273472] [drm:drm_mode_object_get] OBJ ID: 40 (4)
[    1.273482] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (5)
[    1.273493] [drm:drm_atomic_state_default_clear] Clearing atomic state 00000000197d29df
[    1.273502] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (6)
[    1.273512] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (5)
[    1.273522] [drm:drm_mode_object_put.part.0] OBJ ID: 41 (1)
[    1.273538] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (4)
[    1.273549] [drm:__drm_atomic_state_free] Freeing atomic state 00000000197d29df
[    1.291326] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=2, diff=1, hw=0 hw_last=0
[    1.304862] Console: switching to colour frame buffer device 160x64
[    1.304900] [drm:drm_atomic_state_init] Allocated atomic state 00000000705f1bde
[    1.304912] [drm:drm_mode_object_get] OBJ ID: 40 (3)
[    1.304923] [drm:drm_atomic_get_plane_state] Added [PLANE:28:plane-0] 000000001fb7e1dd state to 00000000705f1bde
[    1.304935] [drm:drm_mode_object_get] OBJ ID: 42 (1)
[    1.304945] [drm:drm_atomic_get_crtc_state] Added [CRTC:30:crtc-0] 00000000a52ed97b state to 00000000705f1bde
[    1.304957] [drm:drm_atomic_get_plane_state] Added [PLANE:29:plane-1] 00000000522397e4 state to 00000000705f1bde
[    1.304965] [drm:drm_atomic_set_crtc_for_plane] Link plane state 00000000522397e4 to [NOCRTC]
[    1.304973] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state 00000000522397e4
[    1.304984] [drm:drm_atomic_get_plane_state] Added [PLANE:31:plane-2] 00000000af4c526d state to 00000000705f1bde
[    1.304992] [drm:drm_atomic_set_crtc_for_plane] Link plane state 00000000af4c526d to [NOCRTC]
[    1.305000] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state 00000000af4c526d
[    1.305012] [drm:drm_mode_object_put.part.0] OBJ ID: 42 (2)
[    1.305028] [drm:drm_atomic_set_mode_for_crtc] Set [MODE:1280x1024] for CRTC state 00000000a52ed97b
[    1.305038] [drm:drm_atomic_set_crtc_for_plane] Link plane state 000000001fb7e1dd to [CRTC:30:crtc-0]
[    1.305048] [drm:drm_atomic_set_fb_for_plane] Set [FB:40] for plane state 000000001fb7e1dd
[    1.305056] [drm:drm_mode_object_get] OBJ ID: 40 (4)
[    1.305066] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (5)
[    1.305078] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:30:crtc-0] to 00000000705f1bde
[    1.305091] [drm:drm_mode_object_get] OBJ ID: 33 (5)
[    1.305100] [drm:drm_mode_object_get] OBJ ID: 33 (6)
[    1.305110] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:33:HDMI-A-1] 0000000017fcdffb state to 00000000705f1bde
[    1.305120] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (6)
[    1.305129] [drm:drm_atomic_set_crtc_for_connector] Link connector state 0000000017fcdffb to [NOCRTC]
[    1.305138] [drm:drm_mode_object_get] OBJ ID: 33 (5)
[    1.305148] [drm:drm_atomic_set_crtc_for_connector] Link connector state 0000000017fcdffb to [CRTC:30:crtc-0]
[    1.305156] [drm:drm_atomic_check_only] checking 00000000705f1bde
[    1.305171] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:33:HDMI-A-1]
[    1.305184] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:33:HDMI-A-1] keeps [ENCODER:32:TMDS-32], now on [CRTC:30:crtc-0]
[    1.305201] [drm:drm_atomic_commit] committing 00000000705f1bde
[    1.305225] [drm:drm_calc_timestamping_constants] crtc 30: hwmode: htotal 1688, vtotal 1066, vdisplay 1024
[    1.305235] [drm:drm_calc_timestamping_constants] crtc 30: clock 108000 kHz framedur 16661185 linedur 15629
[    1.332870] usb 1-1: new full-speed USB device number 2 using dwc2
[    1.362862] ------------[ cut here ]------------
[    1.362867] [CRTC:30:crtc-0] vblank wait timed out
[    1.362924] WARNING: CPU: 1 PID: 35 at drivers/gpu/drm/drm_atomic_helper.c:1349 drm_atomic_helper_wait_for_vblanks.part.8+0x2a0/0x2a8
[    1.362927] Modules linked in:
[    1.362942] CPU: 1 PID: 35 Comm: kworker/1:1 Tainted: G        W        4.16.0-rc1-01570-gfe442b615ed0 #55
[    1.362945] Hardware name: Beelink A1 (DT)
[    1.362959] Workqueue: events deferred_probe_work_func
[    1.362968] pstate: 40000005 (nZcv daif -PAN -UAO)
[    1.362975] pc : drm_atomic_helper_wait_for_vblanks.part.8+0x2a0/0x2a8
[    1.362983] lr : drm_atomic_helper_wait_for_vblanks.part.8+0x2a0/0x2a8
[    1.362986] sp : ffffff8008d73350
[    1.362989] x29: ffffff8008d73350 x28: 0000000000000000 
[    1.362998] x27: 0000000000000003 x26: ffffffc0f8412000 
[    1.363006] x25: 0000000000000001 x24: 0000000000000000 
[    1.363014] x23: 0000000000000030 x22: 0000000000000001 
[    1.363022] x21: ffffffc0f75d1080 x20: ffffffc0f8da1018 
[    1.363030] x19: 0000000000000000 x18: 0000000000020000 
[    1.363039] x17: 0000000000000008 x16: ffffff8008c2bc80 
[    1.363047] x15: 00000000fffffff0 x14: ffffff8008bcfc20 
[    1.363055] x13: ffffff8008c490f0 x12: ffffff8008bcf000 
[    1.363063] x11: 0000000000000000 x10: ffffff8008c48000 
[    1.363071] x9 : 0000000000000000 x8 : ffffff8008c543d0 
[    1.363079] x7 : 0000000000000000 x6 : 0000000008d5a9c9 
[    1.363087] x5 : 0000000000000000 x4 : 0000000000000000 
[    1.363095] x3 : ffffffffffffffff x2 : 00000040f53eb000 
[    1.363102] x1 : 8c20204912c27300 x0 : 0000000000000000 
[    1.363110] Call trace:
[    1.363119]  drm_atomic_helper_wait_for_vblanks.part.8+0x2a0/0x2a8
[    1.363126]  drm_atomic_helper_commit_tail_rpm+0x58/0x70
[    1.363133]  commit_tail+0x44/0x78
[    1.363139]  drm_atomic_helper_commit+0xec/0x178
[    1.363145]  drm_atomic_commit+0x50/0x60
[    1.363153]  restore_fbdev_mode_atomic+0x1b4/0x248
[    1.363161]  drm_fb_helper_pan_display+0xa4/0x1d0
[    1.363169]  fb_pan_display+0x94/0x118
[    1.363178]  bit_update_start+0x1c/0x40
[    1.363186]  fbcon_switch+0x34c/0x5a8
[    1.363195]  redraw_screen+0x170/0x280
[    1.363204]  do_bind_con_driver+0x3b8/0x3c8
[    1.363212]  do_take_over_console+0xa4/0x210
[    1.363219]  do_fbcon_takeover+0x6c/0xf0
[    1.363227]  fbcon_event_notify+0x9d0/0xa48
[    1.363235]  notifier_call_chain+0x50/0x90
[    1.363241]  blocking_notifier_call_chain+0x48/0x70
[    1.363247]  fb_notifier_call_chain+0x1c/0x28
[    1.363254]  register_framebuffer+0x22c/0x338
[    1.363263]  __drm_fb_helper_initial_config_and_unlock+0x214/0x428
[    1.363271]  drm_fb_helper_initial_config+0x40/0x50
[    1.363280]  rockchip_drm_fbdev_init+0x78/0x170
[    1.363288]  rockchip_drm_bind+0xbc/0x1d8
[    1.363296]  try_to_bring_up_master+0x178/0x1d8
[    1.363302]  component_master_add_with_match+0xc0/0x118
[    1.363310]  rockchip_drm_platform_probe+0x18c/0x2a0
[    1.363317]  platform_drv_probe+0x58/0xb8
[    1.363326]  driver_probe_device+0x23c/0x310
[    1.363334]  __device_attach_driver+0x9c/0xf8
[    1.363342]  bus_for_each_drv+0x68/0xd0
[    1.363350]  __device_attach+0xd8/0x138
[    1.363358]  device_initial_probe+0x10/0x18
[    1.363366]  bus_probe_device+0x94/0xa0
[    1.363373]  deferred_probe_work_func+0xa0/0x148
[    1.363381]  process_one_work+0x1d4/0x330
[    1.363388]  worker_thread+0x244/0x470
[    1.363396]  kthread+0x128/0x130
[    1.363405]  ret_from_fork+0x10/0x18
[    1.363409] ---[ end trace 68a2b16ad2774693 ]---
[    1.363425] [drm:drm_mode_object_get] OBJ ID: 40 (4)
[    1.363435] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (5)
[    1.363445] [drm:drm_atomic_state_default_clear] Clearing atomic state 00000000705f1bde
[    1.363455] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (6)
[    1.363465] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (5)
[    1.363475] [drm:drm_mode_object_put.part.0] OBJ ID: 42 (1)
[    1.363491] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (4)
[    1.363502] [drm:__drm_atomic_state_free] Freeing atomic state 00000000705f1bde
[    1.366299] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=3, diff=1, hw=0 hw_last=0
[    1.441273] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=4, diff=1, hw=0 hw_last=0
[    1.442114] rockchip-drm display-subsystem: fb0:  frame buffer device
[    1.516251] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=5, diff=1, hw=0 hw_last=0
[    3.805498] [drm:drm_minor_register] 
[    3.805513] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=6, diff=1, hw=0 hw_last=0
[    3.821498] [drm:drm_minor_register] 
[    3.829428] [drm:drm_minor_register] 
[    3.838147] [drm:drm_minor_register] new minor registered 0
[    3.840506] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=7, diff=1, hw=0 hw_last=0
[    3.846623] [drm:drm_sysfs_connector_add] adding "HDMI-A-1" to sysfs
[    3.863767] [drm:drm_sysfs_hotplug_event] generating hotplug event
[    3.872286] [drm] Initialized rockchip 1.0.0 20140818 for display-subsystem on minor 0
[    3.882196] rk_gmac-dwmac ff540000.ethernet: PTP uses main clock
[    3.891059] rk_gmac-dwmac ff540000.ethernet: clock input or output? (input).
[    3.899882] rk_gmac-dwmac ff540000.ethernet: TX delay(0x26).
[    3.908533] rk_gmac-dwmac ff540000.ethernet: RX delay(0x11).
[    3.915485] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=8, diff=1, hw=0 hw_last=0
[    3.917094] rk_gmac-dwmac ff540000.ethernet: integrated PHY? (no).
[    3.935430] rk_gmac-dwmac ff540000.ethernet: clock input from PHY
[    3.949435] rk_gmac-dwmac ff540000.ethernet: init for RGMII
[    3.958394] stmmac - user ID: 0x10, Synopsys ID: 0x35
[    3.967290] rk_gmac-dwmac ff540000.ethernet: Ring mode enabled
[    3.976341] rk_gmac-dwmac ff540000.ethernet: DMA HW capability register supported
[    3.985624] rk_gmac-dwmac ff540000.ethernet: Normal descriptors
[    3.990445] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=9, diff=1, hw=0 hw_last=0
[    3.994758] rk_gmac-dwmac ff540000.ethernet: RX Checksum Offload Engine supported
[    4.014242] rk_gmac-dwmac ff540000.ethernet: COE Type 2
[    4.023692] rk_gmac-dwmac ff540000.ethernet: TX Checksum insertion supported
[    4.033349] rk_gmac-dwmac ff540000.ethernet: Wake-Up On Lan supported
[    4.042996] rk_gmac-dwmac ff540000.ethernet: Enable RX Mitigation via HW Watchdog Timer
[    4.053659] input: Logitech USB Receiver as /devices/platform/ff580000.usb/usb1/1-1/1-1:1.0/0003:046D:C52B.0001/input/input0
[    4.065436] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=10, diff=1, hw=0 hw_last=0
[    4.133669] hid-generic 0003:046D:C52B.0001: input: USB HID v1.11 Keyboard [Logitech USB Receiver] on usb-ff580000.usb-1/input0
[    4.140412] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=11, diff=1, hw=0 hw_last=0
[    4.161162] input: Logitech USB Receiver as /devices/platform/ff580000.usb/usb1/1-1/1-1:1.1/0003:046D:C52B.0002/input/input1
[    4.178242] libphy: stmmac: probed
[    4.188905] RTL8211F Gigabit Ethernet stmmac-0:00: attached PHY driver [RTL8211F Gigabit Ethernet] (mii_bus:phy_addr=stmmac-0:00, irq=POLL)
[    4.200906] RTL8211F Gigabit Ethernet stmmac-0:01: attached PHY driver [RTL8211F Gigabit Ethernet] (mii_bus:phy_addr=stmmac-0:01, irq=POLL)
[    4.213732] hctosys: unable to open rtc device (rtc0)
[    4.215389] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=12, diff=1, hw=0 hw_last=0
[    4.225335] clk: Not disabling unused clocks
[    4.248908] ALSA device list:
[    4.260435] hid-generic 0003:046D:C52B.0002: input: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-ff580000.usb-1/input1
[    4.272876]   No soundcards found.
[    4.277975] hid-generic 0003:046D:C52B.0003: device has no listeners, quitting
[    4.290368] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=13, diff=1, hw=0 hw_last=0
[    4.311171] ttyS2 - failed to request DMA
[    4.324395] Freeing unused kernel memory: 704K
[    4.365362] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=14, diff=1, hw=0 hw_last=0
[    4.440324] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=15, diff=1, hw=0 hw_last=0
[    4.515313] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=16, diff=1, hw=0 hw_last=0
[    4.590301] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=17, diff=1, hw=0 hw_last=0
[    4.665267] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=18, diff=1, hw=0 hw_last=0
[    4.740228] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=19, diff=1, hw=0 hw_last=0
[    4.815200] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=20, diff=1, hw=0 hw_last=0
[    4.883005] [drm:drm_sysfs_hotplug_event] generating hotplug event
[    4.890182] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=21, diff=1, hw=0 hw_last=0
[    4.903075] [drm:drm_fb_helper_hotplug_event.part.28] 
[    4.922928] [drm:drm_setup_crtcs] 
[    4.935887] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:33:HDMI-A-1]
[    4.965209] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=22, diff=1, hw=0 hw_last=0
[    5.024648] [drm:drm_add_display_info] non_desktop set to 0
[    5.038487] [drm:drm_mode_object_put.part.0] OBJ ID: 34 (1)
[    5.040193] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=23, diff=1, hw=0 hw_last=0
[    5.051400] [drm:drm_add_edid_modes] ELD: no CEA Extension found
[    5.078135] [drm:drm_add_display_info] non_desktop set to 0
[    5.091897] [drm:drm_mode_debug_printmodeline] Modeline 34:"1280x1024" 75 135000 1280 1296 1440 1688 1024 1025 1028 1066 0x48 0x5
[    5.106219] [drm:drm_mode_prune_invalid] Not using 1280x1024 mode: BAD
[    5.115142] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=24, diff=1, hw=0 hw_last=0
[    5.119751] [drm:drm_mode_debug_printmodeline] Modeline 47:"640x480" 0 31500 640 656 720 840 480 481 484 500 0x40 0xa
[    5.148006] [drm:drm_mode_prune_invalid] Not using 640x480 mode: BAD
[    5.161972] [drm:drm_mode_debug_printmodeline] Modeline 49:"640x480" 0 31500 640 664 704 832 480 489 492 520 0x40 0xa
[    5.176564] [drm:drm_mode_prune_invalid] Not using 640x480 mode: BAD
[    5.190139] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=25, diff=1, hw=0 hw_last=0
[    5.190691] [drm:drm_mode_debug_printmodeline] Modeline 50:"640x480" 0 30240 640 704 768 864 480 483 486 525 0x40 0xa
[    5.220155] [drm:drm_mode_prune_invalid] Not using 640x480 mode: BAD
[    5.234644] [drm:drm_mode_debug_printmodeline] Modeline 51:"640x480" 0 25175 640 656 752 800 480 490 492 525 0x40 0xa
[    5.249633] [drm:drm_mode_prune_invalid] Not using 640x480 mode: BAD
[    5.264187] [drm:drm_mode_debug_printmodeline] Modeline 52:"720x400" 0 28320 720 738 846 900 400 412 414 449 0x40 0x6
[    5.265034] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=26, diff=1, hw=0 hw_last=0
[    5.279198] [drm:drm_mode_prune_invalid] Not using 720x400 mode: BAD
[    5.309069] [drm:drm_mode_debug_printmodeline] Modeline 54:"1024x768" 0 78750 1024 1040 1136 1312 768 769 772 800 0x40 0x5
[    5.324819] [drm:drm_mode_prune_invalid] Not using 1024x768 mode: BAD
[    5.339840] [drm:drm_mode_debug_printmodeline] Modeline 55:"1024x768" 0 75000 1024 1048 1184 1328 768 771 777 806 0x40 0xa
[    5.340014] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=27, diff=1, hw=0 hw_last=0
[    5.355318] [drm:drm_mode_prune_invalid] Not using 1024x768 mode: BAD
[    5.386355] [drm:drm_mode_debug_printmodeline] Modeline 57:"832x624" 0 57284 832 864 928 1152 624 625 628 667 0x40 0xa
[    5.402804] [drm:drm_mode_prune_invalid] Not using 832x624 mode: BAD
[    5.415008] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=28, diff=1, hw=0 hw_last=0
[    5.418455] [drm:drm_mode_debug_printmodeline] Modeline 58:"800x600" 0 49500 800 816 896 1056 600 601 604 625 0x40 0x5
[    5.450479] [drm:drm_mode_prune_invalid] Not using 800x600 mode: BAD
[    5.450510] [drm:drm_mode_debug_printmodeline] Modeline 59:"800x600" 0 50000 800 856 976 1040 600 637 643 666 0x40 0x5
[    5.481812] [drm:drm_mode_prune_invalid] Not using 800x600 mode: BAD
[    5.489997] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=29, diff=1, hw=0 hw_last=0
[    5.497075] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:33:HDMI-A-1] probed modes :
[    5.527892] [drm:drm_mode_debug_printmodeline] Modeline 36:"1280x1024" 60 108000 1280 1328 1440 1688 1024 1025 1028 1066 0x40 0x5
[    5.543935] [drm:drm_mode_debug_printmodeline] Modeline 37:"1152x864" 75 108000 1152 1216 1344 1600 864 865 868 900 0x40 0x5
[    5.559937] [drm:drm_mode_debug_printmodeline] Modeline 48:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa
[    5.564960] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=30, diff=1, hw=0 hw_last=0
[    5.575664] [drm:drm_mode_debug_printmodeline] Modeline 38:"800x600" 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5
[    5.606926] [drm:drm_mode_debug_printmodeline] Modeline 39:"800x600" 56 36000 800 824 896 1024 600 601 603 625 0x40 0x5
[    5.622606] [drm:drm_setup_crtcs] connector 33 enabled? yes
[    5.628267] EXT4-fs (mmcblk0p7): mounted filesystem with ordered data mode. Opts: (null)
[    5.637743] [drm:drm_setup_crtcs] looking for cmdline mode on connector 33
[    5.639918] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=31, diff=1, hw=0 hw_last=0
[    5.683522] [drm:drm_setup_crtcs] looking for preferred mode on connector 33 0
[    5.698977] [drm:drm_setup_crtcs] found mode 1280x1024
[    5.713885] [drm:drm_setup_crtcs] picking CRTCs for 1280x1024 config
[    5.714925] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=32, diff=1, hw=0 hw_last=0
[    5.729010] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (4)
[    5.760113] [drm:drm_setup_crtcs] desired mode 1280x1024 set on crtc 30 (0,0)
[    5.775925] [drm:drm_mode_object_get] OBJ ID: 33 (3)
[    5.789909] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=33, diff=1, hw=0 hw_last=0
[    5.791716] [drm:drm_atomic_state_init] Allocated atomic state 000000009c98915c
[    5.824337] [drm:drm_mode_object_get] OBJ ID: 40 (3)
[    5.840259] [drm:drm_atomic_get_plane_state] Added [PLANE:28:plane-0] 000000001770cb34 state to 000000009c98915c
[    5.856840] [drm:drm_mode_object_get] OBJ ID: 41 (1)
[    5.864858] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=34, diff=1, hw=0 hw_last=0
[    5.872899] [drm:drm_atomic_get_crtc_state] Added [CRTC:30:crtc-0] 0000000040e39674 state to 000000009c98915c
[    5.906148] [drm:drm_atomic_get_plane_state] Added [PLANE:29:plane-1] 0000000044cf8362 state to 000000009c98915c
[    5.922907] [drm:drm_atomic_set_crtc_for_plane] Link plane state 0000000044cf8362 to [NOCRTC]
[    5.939572] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state 0000000044cf8362
[    5.939809] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=35, diff=1, hw=0 hw_last=0
[    5.956022] [drm:drm_atomic_get_plane_state] Added [PLANE:31:plane-2] 0000000013865618 state to 000000009c98915c
[    5.989502] [drm:drm_atomic_set_crtc_for_plane] Link plane state 0000000013865618 to [NOCRTC]
[    6.006211] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state 0000000013865618
[    6.014830] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=36, diff=1, hw=0 hw_last=0
[    6.022752] [drm:drm_mode_object_put.part.0] OBJ ID: 41 (2)
[    6.055445] [drm:drm_atomic_set_mode_for_crtc] Set [MODE:1280x1024] for CRTC state 0000000040e39674
[    6.072044] [drm:drm_atomic_set_crtc_for_plane] Link plane state 000000001770cb34 to [CRTC:30:crtc-0]
[    6.088653] [drm:drm_atomic_set_fb_for_plane] Set [FB:40] for plane state 000000001770cb34
[    6.089762] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=37, diff=1, hw=0 hw_last=0
[    6.104909] [drm:drm_mode_object_get] OBJ ID: 40 (4)
[    6.137220] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (5)
[    6.153075] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:30:crtc-0] to 000000009c98915c
[    6.164769] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=38, diff=1, hw=0 hw_last=0
[    6.169622] [drm:drm_mode_object_get] OBJ ID: 33 (5)
[    6.201715] [drm:drm_mode_object_get] OBJ ID: 33 (6)
[    6.217327] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:33:HDMI-A-1] 00000000272e9dc4 state to 000000009c98915c
[    6.233690] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (6)
[    6.239743] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=39, diff=1, hw=0 hw_last=0
[    6.249373] [drm:drm_atomic_set_crtc_for_connector] Link connector state 00000000272e9dc4 to [NOCRTC]
[    6.281513] [drm:drm_mode_object_get] OBJ ID: 33 (5)
[    6.297062] [drm:drm_atomic_set_crtc_for_connector] Link connector state 00000000272e9dc4 to [CRTC:30:crtc-0]
[    6.313228] [drm:drm_atomic_check_only] checking 000000009c98915c
[    6.314690] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=40, diff=1, hw=0 hw_last=0
[    6.328783] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:33:HDMI-A-1]
[    6.360612] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:33:HDMI-A-1] keeps [ENCODER:32:TMDS-32], now on [CRTC:30:crtc-0]
[    6.376931] [drm:drm_atomic_commit] committing 000000009c98915c
[    6.389666] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=41, diff=1, hw=0 hw_last=0
[    6.392441] [drm:drm_calc_timestamping_constants] crtc 30: hwmode: htotal 1688, vtotal 1066, vdisplay 1024
[    6.408321] [drm:vblank_disable_fn] disabling vblank on crtc 0
[    6.408334] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=42, diff=0, hw=0 hw_last=0
[    6.455941] [drm:drm_calc_timestamping_constants] crtc 30: clock 108000 kHz framedur 16661185 linedur 15629
[    6.471990] [drm:drm_vblank_enable] enabling vblank on crtc 0, ret: 0
[    6.487701] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=42, diff=0, hw=0 hw_last=0
[    6.539643] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=42, diff=1, hw=0 hw_last=0
[    6.555497] [drm:drm_mode_object_get] OBJ ID: 40 (4)
[    6.570725] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (5)
[    6.586182] [drm:drm_atomic_state_default_clear] Clearing atomic state 000000009c98915c
[    6.601731] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (6)
[    6.614615] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=43, diff=1, hw=0 hw_last=0
[    6.616932] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (5)
[    6.647759] [drm:drm_mode_object_put.part.0] OBJ ID: 41 (1)
[    6.662799] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (4)
[    6.677678] [drm:__drm_atomic_state_free] Freeing atomic state 000000009c98915c
[    6.681763] systemd[1]: System time before build time, advancing clock.
[    6.689570] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=44, diff=1, hw=0 hw_last=0
[    6.764559] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=45, diff=1, hw=0 hw_last=0
[    6.796006] systemd[1]: systemd 237 running in system mode. (+PAM -AUDIT -SELINUX -IMA -APPARMOR +SMACK -SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN +PCRE2 default-hierarchy=hybrid)
[    6.828193] systemd[1]: Detected architecture arm64.
[    6.839531] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=46, diff=1, hw=0 hw_last=0
[    6.876164] systemd[1]: Set hostname to <nemulon-9>.
[    6.914523] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=47, diff=1, hw=0 hw_last=0
[    6.989494] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=48, diff=1, hw=0 hw_last=0
[    7.064471] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=49, diff=1, hw=0 hw_last=0
[    7.139444] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=50, diff=1, hw=0 hw_last=0
[    7.214440] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=51, diff=1, hw=0 hw_last=0
[    7.289397] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=52, diff=1, hw=0 hw_last=0
[    7.364372] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=53, diff=1, hw=0 hw_last=0
[    7.439350] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=54, diff=1, hw=0 hw_last=0
[    7.474241] systemd[1]: File /usr/lib/systemd/system/systemd-journald.service:35 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.
[    7.503449] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)
[    7.514312] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=55, diff=1, hw=0 hw_last=0
[    7.589298] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=56, diff=1, hw=0 hw_last=0
[    7.664275] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=57, diff=1, hw=0 hw_last=0
[    7.739249] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=58, diff=1, hw=0 hw_last=0
[    7.805592] systemd[1]: Created slice System Slice.
[    7.814214] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=59, diff=1, hw=0 hw_last=0
[    7.863612] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[    7.889182] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=60, diff=1, hw=0 hw_last=0
[    7.903529] systemd[1]: Listening on Device-mapper event daemon FIFOs.
[    7.943603] systemd[1]: Listening on LVM2 metadata daemon socket.
[    7.964173] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=61, diff=1, hw=0 hw_last=0
[    7.970160] systemd[1]: Listening on Process Core Dump Socket.
[    8.039134] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=62, diff=1, hw=0 hw_last=0
[    8.114124] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=63, diff=1, hw=0 hw_last=0
[    8.189086] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=64, diff=1, hw=0 hw_last=0
[    8.264059] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=65, diff=1, hw=0 hw_last=0
[    8.339036] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=66, diff=1, hw=0 hw_last=0
[    8.414034] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=67, diff=1, hw=0 hw_last=0
[    8.489013] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=68, diff=1, hw=0 hw_last=0
[    8.563980] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=69, diff=1, hw=0 hw_last=0
[    8.569724] EXT4-fs (mmcblk0p7): re-mounted. Opts: discard,data=ordered
[    8.638939] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=70, diff=1, hw=0 hw_last=0
[    8.713967] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=71, diff=1, hw=0 hw_last=0
[    8.788903] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=72, diff=1, hw=0 hw_last=0
[    8.863870] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=73, diff=1, hw=0 hw_last=0
[    8.938846] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=74, diff=1, hw=0 hw_last=0
[    9.013827] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=75, diff=1, hw=0 hw_last=0
[    9.088820] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=76, diff=1, hw=0 hw_last=0
[    9.163786] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=77, diff=1, hw=0 hw_last=0
[    9.238754] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=78, diff=1, hw=0 hw_last=0
[    9.313739] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=79, diff=1, hw=0 hw_last=0
[    9.388709] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=80, diff=1, hw=0 hw_last=0
[    9.395960] systemd-journald[179]: Received request to flush runtime journal from PID 1
[    9.432744] systemd-journald[179]: File /var/log/journal/95d06aefb7284deeaceaebd2f8f8c4b1/system.journal corrupted or uncleanly shut down, renaming and replacing.
[    9.463680] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=81, diff=1, hw=0 hw_last=0
[    9.538658] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=82, diff=1, hw=0 hw_last=0
[    9.613630] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=83, diff=1, hw=0 hw_last=0
[    9.688606] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=84, diff=1, hw=0 hw_last=0
[    9.763578] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=85, diff=1, hw=0 hw_last=0
[    9.838560] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=86, diff=1, hw=0 hw_last=0
[    9.913529] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=87, diff=1, hw=0 hw_last=0
[    9.988515] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=88, diff=1, hw=0 hw_last=0
[   10.063534] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=89, diff=1, hw=0 hw_last=0
[   10.115056] random: crng init done
[   10.138517] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=90, diff=1, hw=0 hw_last=0
[   10.213476] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=91, diff=1, hw=0 hw_last=0
[   10.288426] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=92, diff=1, hw=0 hw_last=0
[   10.363435] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=93, diff=1, hw=0 hw_last=0
[   10.438380] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=94, diff=1, hw=0 hw_last=0
[   10.513344] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=95, diff=1, hw=0 hw_last=0
[   10.574381] RTL8211F Gigabit Ethernet stmmac-0:00: attached PHY driver [RTL8211F Gigabit Ethernet] (mii_bus:phy_addr=stmmac-0:00, irq=POLL)
[   10.588372] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=96, diff=1, hw=0 hw_last=0
[   10.593046] rk_gmac-dwmac ff540000.ethernet eth0: PTP not supported by HW
[   10.663288] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=97, diff=1, hw=0 hw_last=0
[   10.738263] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=98, diff=1, hw=0 hw_last=0
[   10.813263] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=99, diff=1, hw=0 hw_last=0
[   10.832304] FAT-fs (mmcblk0p6): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[   10.888209] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=100, diff=1, hw=0 hw_last=0
[   10.963202] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=101, diff=1, hw=0 hw_last=0
[   11.038169] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=102, diff=1, hw=0 hw_last=0
[   11.113186] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=103, diff=1, hw=0 hw_last=0
[   11.188115] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=104, diff=1, hw=0 hw_last=0
[   11.263109] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=105, diff=1, hw=0 hw_last=0
[   11.338062] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=106, diff=1, hw=0 hw_last=0
[   11.413051] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=107, diff=1, hw=0 hw_last=0
[   11.488008] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=108, diff=1, hw=0 hw_last=0
[   11.562991] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=109, diff=1, hw=0 hw_last=0
[   11.602882] [drm:vblank_disable_fn] disabling vblank on crtc 0
[   11.610639] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=110, diff=0, hw=0 hw_last=0
[   12.647059] [drm:drm_atomic_state_init] Allocated atomic state 00000000e7bc325a
[   12.647082] [drm:drm_mode_object_get] OBJ ID: 40 (3)
[   12.647095] [drm:drm_atomic_get_plane_state] Added [PLANE:28:plane-0] 00000000d219b671 state to 00000000e7bc325a
[   12.647110] [drm:drm_mode_object_get] OBJ ID: 35 (1)
[   12.647121] [drm:drm_atomic_get_crtc_state] Added [CRTC:30:crtc-0] 000000001ed3b088 state to 00000000e7bc325a
[   12.647135] [drm:drm_atomic_get_plane_state] Added [PLANE:29:plane-1] 0000000032afc56f state to 00000000e7bc325a
[   12.647143] [drm:drm_atomic_set_crtc_for_plane] Link plane state 0000000032afc56f to [NOCRTC]
[   12.647153] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state 0000000032afc56f
[   12.647166] [drm:drm_atomic_get_plane_state] Added [PLANE:31:plane-2] 000000005e3b775b state to 00000000e7bc325a
[   12.647175] [drm:drm_atomic_set_crtc_for_plane] Link plane state 000000005e3b775b to [NOCRTC]
[   12.647183] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state 000000005e3b775b
[   12.647198] [drm:drm_mode_object_put.part.0] OBJ ID: 35 (2)
[   12.647228] [drm:drm_atomic_set_mode_for_crtc] Set [MODE:1280x1024] for CRTC state 000000001ed3b088
[   12.647240] [drm:drm_atomic_set_crtc_for_plane] Link plane state 00000000d219b671 to [CRTC:30:crtc-0]
[   12.647252] [drm:drm_atomic_set_fb_for_plane] Set [FB:40] for plane state 00000000d219b671
[   12.647262] [drm:drm_mode_object_get] OBJ ID: 40 (4)
[   12.647271] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (5)
[   12.647285] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:30:crtc-0] to 00000000e7bc325a
[   12.647303] [drm:drm_mode_object_get] OBJ ID: 33 (5)
[   12.647312] [drm:drm_mode_object_get] OBJ ID: 33 (6)
[   12.647322] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:33:HDMI-A-1] 000000000355ed0b state to 00000000e7bc325a
[   12.647333] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (6)
[   12.647342] [drm:drm_atomic_set_crtc_for_connector] Link connector state 000000000355ed0b to [NOCRTC]
[   12.647352] [drm:drm_mode_object_get] OBJ ID: 33 (5)
[   12.647362] [drm:drm_atomic_set_crtc_for_connector] Link connector state 000000000355ed0b to [CRTC:30:crtc-0]
[   12.647371] [drm:drm_atomic_check_only] checking 00000000e7bc325a
[   12.647397] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:33:HDMI-A-1]
[   12.647411] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:33:HDMI-A-1] keeps [ENCODER:32:TMDS-32], now on [CRTC:30:crtc-0]
[   12.647436] [drm:drm_atomic_commit] committing 00000000e7bc325a
[   12.647474] [drm:drm_calc_timestamping_constants] crtc 30: hwmode: htotal 1688, vtotal 1066, vdisplay 1024
[   12.647484] [drm:drm_calc_timestamping_constants] crtc 30: clock 108000 kHz framedur 16661185 linedur 15629
[   12.647530] [drm:drm_vblank_enable] enabling vblank on crtc 0, ret: 0
[   12.647544] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=110, diff=0, hw=0 hw_last=0
[   12.687608] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=110, diff=1, hw=0 hw_last=0
[   12.687663] [drm:drm_mode_object_get] OBJ ID: 40 (4)
[   12.687674] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (5)
[   12.687688] [drm:drm_atomic_state_default_clear] Clearing atomic state 00000000e7bc325a
[   12.687699] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (6)
[   12.687710] [drm:drm_mode_object_put.part.0] OBJ ID: 33 (5)
[   12.687721] [drm:drm_mode_object_put.part.0] OBJ ID: 35 (1)
[   12.687741] [drm:drm_mode_object_put.part.0] OBJ ID: 40 (4)
[   12.687753] [drm:__drm_atomic_state_free] Freeing atomic state 00000000e7bc325a
[   12.762562] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=111, diff=1, hw=0 hw_last=0
[   12.837567] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=112, diff=1, hw=0 hw_last=0
[   12.912525] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=113, diff=1, hw=0 hw_last=0
[   12.987492] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=114, diff=1, hw=0 hw_last=0
[   13.062466] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=115, diff=1, hw=0 hw_last=0
[   13.137440] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=116, diff=1, hw=0 hw_last=0
[   13.212412] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=117, diff=1, hw=0 hw_last=0
[   13.287393] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=118, diff=1, hw=0 hw_last=0
[   13.362366] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=119, diff=1, hw=0 hw_last=0
[   13.437341] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=120, diff=1, hw=0 hw_last=0
[   13.512315] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=121, diff=1, hw=0 hw_last=0
[   13.587292] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=122, diff=1, hw=0 hw_last=0
[   13.662272] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=123, diff=1, hw=0 hw_last=0
[   13.737256] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=124, diff=1, hw=0 hw_last=0
[   13.764668] rk_gmac-dwmac ff540000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[   13.812237] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=125, diff=1, hw=0 hw_last=0
[   13.887224] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=126, diff=1, hw=0 hw_last=0
[   13.962185] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=127, diff=1, hw=0 hw_last=0
[   14.037155] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=128, diff=1, hw=0 hw_last=0
[   14.112138] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=129, diff=1, hw=0 hw_last=0
[   14.187126] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=130, diff=1, hw=0 hw_last=0
[   14.262088] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=131, diff=1, hw=0 hw_last=0
[   14.337071] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=132, diff=1, hw=0 hw_last=0
[   14.412034] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=133, diff=1, hw=0 hw_last=0
[   14.487014] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=134, diff=1, hw=0 hw_last=0
[   14.561989] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=135, diff=1, hw=0 hw_last=0
[   14.636961] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=136, diff=1, hw=0 hw_last=0
[   14.711948] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=137, diff=1, hw=0 hw_last=0
[   14.786923] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=138, diff=1, hw=0 hw_last=0
[   14.861890] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=139, diff=1, hw=0 hw_last=0
[   14.936861] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=140, diff=1, hw=0 hw_last=0
[   15.011837] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=141, diff=1, hw=0 hw_last=0
[   15.086828] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=142, diff=1, hw=0 hw_last=0
[   15.161795] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=143, diff=1, hw=0 hw_last=0
[   15.236764] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=144, diff=1, hw=0 hw_last=0
[   15.311735] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=145, diff=1, hw=0 hw_last=0
[   15.386714] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=146, diff=1, hw=0 hw_last=0
[   15.461685] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=147, diff=1, hw=0 hw_last=0
[   15.536660] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=148, diff=1, hw=0 hw_last=0
[   15.611643] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=149, diff=1, hw=0 hw_last=0
[   15.686615] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=150, diff=1, hw=0 hw_last=0
[   15.761587] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=151, diff=1, hw=0 hw_last=0
[   15.836562] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=152, diff=1, hw=0 hw_last=0
[   15.911529] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=153, diff=1, hw=0 hw_last=0
[   15.986517] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=154, diff=1, hw=0 hw_last=0
[   16.061485] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=155, diff=1, hw=0 hw_last=0
[   16.136456] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=156, diff=1, hw=0 hw_last=0
[   16.211437] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=157, diff=1, hw=0 hw_last=0
[   16.286412] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=158, diff=1, hw=0 hw_last=0
[   16.361390] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=159, diff=1, hw=0 hw_last=0
[   16.436367] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=160, diff=1, hw=0 hw_last=0
[   16.511340] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=161, diff=1, hw=0 hw_last=0
[   16.586309] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=162, diff=1, hw=0 hw_last=0
[   16.661291] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=163, diff=1, hw=0 hw_last=0
[   16.736267] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=164, diff=1, hw=0 hw_last=0
[   16.811241] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=165, diff=1, hw=0 hw_last=0
[   16.886215] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=166, diff=1, hw=0 hw_last=0
[   16.961189] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=167, diff=1, hw=0 hw_last=0
[   17.036169] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=168, diff=1, hw=0 hw_last=0
[   17.111147] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=169, diff=1, hw=0 hw_last=0
[   17.186124] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=170, diff=1, hw=0 hw_last=0
[   17.261095] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=171, diff=1, hw=0 hw_last=0
[   17.336063] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=172, diff=1, hw=0 hw_last=0
[   17.411039] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=173, diff=1, hw=0 hw_last=0
[   17.486023] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=174, diff=1, hw=0 hw_last=0
[   17.560999] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=175, diff=1, hw=0 hw_last=0
[   17.635968] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=176, diff=1, hw=0 hw_last=0
[   17.710946] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=177, diff=1, hw=0 hw_last=0
[   17.762863] [drm:vblank_disable_fn] disabling vblank on crtc 0
[   17.766398] [drm:drm_update_vblank_count] updating vblank count on crtc 0: current=178, diff=0, hw=0 hw_last=0
[   36.774025] audit: type=1006 audit(1519338363.140:2): pid=256 uid=0 old-auid=4294967295 auid=0 tty=ttyS2 old-ses=4294967295 ses=1 res=1
[   36.868213] audit: type=1006 audit(1519338363.230:3): pid=265 uid=0 old-auid=4294967295 auid=0 tty=(none) old-ses=4294967295 ses=2 res=1

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Re: [PATCH 2/3] arm64: dts: rockchip: add rk3328 display nodes

[Heiko Stuebner]

Hi Robin,

Am Freitag, 23. Februar 2018, 13:27:55 CET schrieb Robin Murphy:
> On 22/02/18 13:01, Robin Murphy wrote:
> > On 21/02/18 21:57, Heiko Stuebner wrote:
> > [...]
> >>> I guess it might just be a case of the VOP and/or HDMI clocks struggling
> >>> to attain an appropriate pixel clock, but the failure mode is really
> >>> non-obvious - if the monitor is plugged in at boot I get 4 or 5 of the
> >>> DRM_WARNs at various points, about 160 VOP interrupts somewhere along
> >>> the line, and HDMI interrupts at a constant rate of around two per
> >>> second; plugging it in after boot, however, just seems to silently do
> >>> nothing (IIRC hotplugging the TV similarly did work as expected). If I
> >>> find the time I might go back and try forcing a 60Hz mode to narrow
> >>> things down a bit more.
> >>
> >> As I only have a standard 1080p display it's hard to check those edge 
> >> cases,
> >> but the struggle for display frequencies follows us for quite some time
> >> already.
> >>
> >> The current default is to source the display clock from the hdmi-phy
> >> which contains its own pll, so I guess first order of business should
> >> probably be to determine which rate gets requested for your display
> >> and which rate gets set - as I'm guessing that we're missing rates.
> >>
> >> DRM_WARNS would be interesting I guess, can you post them?
> >> As for your hdmi-interrupts, from the dw-hdmi or the hdmi-phy?
> > 
> > Oops, my mistake, it's just a regular WARN() at 
> > drivers/gpu/drm/drm_atomic_helper.c:1348 - the IRQs I'm 99% sure were 
> > from dw-hdmi (I really should stop doing this way past bedtime then 
> > trying to remember the details days later...)
> > 
> > I'll turn on all the debug options and do some more digging over the 
> > weekend (and actually save some logs this time!)
> 
> OK, I found time to do some quick testing last night (verbose log 
> attached) - it does indeed look like pretty much all the modes are being 
> rejected. Of all the various overrides I tried, "video=800x600@60" does 
> actually work, but it's the only one (not even plain old 640x480 VGA!)
> 
> Interestingly, the vblank timeouts only happen for 1280x1024 modes - 
> lower resolutions (e.g. 1024x768) still don't produce an output signal, 
> but don't provoke the warning either.
> 
> FWIW, the above behaviours also seem reproducible with 
> "drm.edid_firmware=edid/{1024x768,1280x1024}.bin" if that helps with 
> testing. Otherwise, let me know where to start hacking on drivers ;)

I'm in the middle of the Netherlands right now on vacation, so I'm
probably not doing any display hacking till the middle of next week.

So depending on your spare time, I'd guess it might be interesting to
also activate the debug output in the hdmiphy driver itself to see
requested and actually set rates for the pll inside the hdmiphy.

Because that is my current theory of where the issue might sit.

Heiko

Re: [PATCH 2/3] arm64: dts: rockchip: add rk3328 display nodes

[Robin Murphy]

On 23/02/18 12:35, Heiko Stuebner wrote:
> Hi Robin,
> 
> Am Freitag, 23. Februar 2018, 13:27:55 CET schrieb Robin Murphy:
>> On 22/02/18 13:01, Robin Murphy wrote:
>>> On 21/02/18 21:57, Heiko Stuebner wrote:
>>> [...]
>>>>> I guess it might just be a case of the VOP and/or HDMI clocks struggling
>>>>> to attain an appropriate pixel clock, but the failure mode is really
>>>>> non-obvious - if the monitor is plugged in at boot I get 4 or 5 of the
>>>>> DRM_WARNs at various points, about 160 VOP interrupts somewhere along
>>>>> the line, and HDMI interrupts at a constant rate of around two per
>>>>> second; plugging it in after boot, however, just seems to silently do
>>>>> nothing (IIRC hotplugging the TV similarly did work as expected). If I
>>>>> find the time I might go back and try forcing a 60Hz mode to narrow
>>>>> things down a bit more.
>>>>
>>>> As I only have a standard 1080p display it's hard to check those edge
>>>> cases,
>>>> but the struggle for display frequencies follows us for quite some time
>>>> already.
>>>>
>>>> The current default is to source the display clock from the hdmi-phy
>>>> which contains its own pll, so I guess first order of business should
>>>> probably be to determine which rate gets requested for your display
>>>> and which rate gets set - as I'm guessing that we're missing rates.
>>>>
>>>> DRM_WARNS would be interesting I guess, can you post them?
>>>> As for your hdmi-interrupts, from the dw-hdmi or the hdmi-phy?
>>>
>>> Oops, my mistake, it's just a regular WARN() at
>>> drivers/gpu/drm/drm_atomic_helper.c:1348 - the IRQs I'm 99% sure were
>>> from dw-hdmi (I really should stop doing this way past bedtime then
>>> trying to remember the details days later...)
>>>
>>> I'll turn on all the debug options and do some more digging over the
>>> weekend (and actually save some logs this time!)
>>
>> OK, I found time to do some quick testing last night (verbose log
>> attached) - it does indeed look like pretty much all the modes are being
>> rejected. Of all the various overrides I tried, "video=800x600@60" does
>> actually work, but it's the only one (not even plain old 640x480 VGA!)
>>
>> Interestingly, the vblank timeouts only happen for 1280x1024 modes -
>> lower resolutions (e.g. 1024x768) still don't produce an output signal,
>> but don't provoke the warning either.
>>
>> FWIW, the above behaviours also seem reproducible with
>> "drm.edid_firmware=edid/{1024x768,1280x1024}.bin" if that helps with
>> testing. Otherwise, let me know where to start hacking on drivers ;)
> 
> I'm in the middle of the Netherlands right now on vacation, so I'm
> probably not doing any display hacking till the middle of next week.
> 
> So depending on your spare time, I'd guess it might be interesting to
> also activate the debug output in the hdmiphy driver itself to see
> requested and actually set rates for the pll inside the hdmiphy.
> 
> Because that is my current theory of where the issue might sit.

I think I managed to get a fairly good idea of what's going on here.

Firstly, the modes are still being validated against rockchip_mpll_cfg 
in dw_hdmi_rockchip_mode_valid() - I'm slightly suspicious of that given 
the implication that the HDMI TX block takes a clock from the external 
phy in this case, but I don't know the details of the DesignWare IP 
either way, and the clock tree is also absent from the public RK3328 
TRM, so I'm only guessing.

Modes that don't find an appropriate rate in dw_hdmi (e.g. 1024x768) get 
thrown out there and then and that's that. Otherwise, things then depend 
on the clock setting in the phy driver - when all the stars line up and 
there is a matching rate there too (e.g. 1080p or 800x600@60), the phy 
clock gets set correctly and everything works; when there is no 
appropriate phy rate (e.g. 1280x1024), inno_hdmi_phy_clk_round_rate() 
fails such that inno_hdmi_phy_rk3328_clk_set_rate() never even gets 
called - that would seem to explain the vblank timeouts, if the hardware 
ends up unclocked but someone somewhere along the line doesn't realise.

Robin.

[PATCH 3/3] arm64: dts: rockchip: enable display nodes on rk3328-rock64

[Heiko Stuebner]

Enable necessary nodes to get output on the hdmi port of the board.

Signed-off-by: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
---
 arch/arm64/boot/dts/rockchip/rk3328-rock64.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
index 5c43a61d3178..ca48be13dee7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
@@ -145,6 +145,14 @@
 	status = "okay";
 };
 
+&hdmi {
+	status = "okay";
+};
+
+&hdmiphy {
+	status = "okay";
+};
+
 &i2c1 {
 	status = "okay";
 
@@ -341,3 +349,11 @@
 	dr_mode = "host";
 	status = "okay";
 };
+
+&vop {
+	status = "okay";
+};
+
+&vop_mmu {
+	status = "okay";
+};
-- 
2.15.1