Hi, i'm trying to support HDMI video output on Exynos5410 SoC based
Odroid-XU board.
This work is done from porting board-level and SoC-level source files
mainly all from Hardkernel's vendor repository (odroid-3.13.y-linaro),
using their U-Boot (odroid-v2012.07) repo. The reason behind this is
it has implementation of device tree.
In addition there are some reports that HDMI was working on this
particular version, which i confirmed recently with a experimental
disk image from [0].
The following dependencies modified during tests are based on kernel
5.8 and tested on Archlinux arm:
/drivers/gpu/drm/exynos/exynos_hdmi.c
/drivers/clk/samsung/clk-exynos5410.c
/arch/arm/boot/dts/exynos5410.dtsi
/arch/arm/boot/dts/exynos5410-pinctrl.dtsi
/arch/arm/boot/dts/exynos5410-odroidxu.dts
/include/dt-bindings/clock/exynos5410.h
However, after updating the kernel, still not having HDMI output. Here
are some relevant logs:
[root@alarm alarm]# dmesg | grep hdmi
[ 0.206739] device: '14530000.hdmi': device_add
[ 0.206757] bus: 'platform': add device 14530000.hdmi
[ 0.206792] PM: Adding info for platform:14530000.hdmi
[ 0.216737] platform 14530000.hdmi: Linked as a sync state only
consumer to 100440c0.power-domain
[ 0.216760] platform 14530000.hdmi: Linked as a sync state only
consumer to 13400000.pinctrl
[ 0.216779] platform 14530000.hdmi: Linked as a sync state only
consumer to fixed_regulator@0
[ 2.609448] bus: 'platform': add driver msm_hdmi_phy
[ 2.609636] bus: 'platform': add driver hdmi_msm
[ 2.982804] platform 14530000.hdmi: Linked as a sync state only
consumer to 4-0009
[ 3.747931] vout=hdmi
[ 3.747936] hdmi_phy_res=1080p60hz
[ 11.166645] bus: 'platform': add driver exynos-hdmi
[ 11.166811] bus: 'platform': driver_probe_device: matched device
14530000.hdmi with driver exynos-hdmi
[ 11.166824] bus: 'platform': really_probe: probing driver
exynos-hdmi with device 14530000.hdmi
[ 11.168402] exynos-hdmi 14530000.hdmi: no init pinctrl state
[ 11.168427] exynos-hdmi 14530000.hdmi: no sleep pinctrl state
[ 11.168436] exynos-hdmi 14530000.hdmi: no idle pinctrl state
[ 11.168486] exynos-hdmi 14530000.hdmi: adding to PM domain DISP
[ 11.168494] exynos-hdmi 14530000.hdmi: genpd_add_device()
[ 11.172597] exynos-hdmi 14530000.hdmi: genpd_remove_device()
[ 11.172627] platform 14530000.hdmi: Driver exynos-hdmi requests
probe deferral
[ 11.172636] platform 14530000.hdmi: Added to deferred list
[ 11.185562] devices_kset: Moving 14530000.hdmi to end of list
[ 11.185570] PM: Moving platform:14530000.hdmi to end of list
[ 11.185580] platform 14530000.hdmi: Retrying from deferred list
[root@alarm alarm]# dmesg | grep mixer
[ 0.207251] device: '14450000.mixer': device_add
[ 0.207267] bus: 'platform': add device 14450000.mixer
[ 0.207296] PM: Adding info for platform:14450000.mixer
[ 0.216840] platform 14450000.mixer: Linked as a sync state only
consumer to 100440c0.power-domain
[ 0.216883] platform 14450000.mixer: Linked as a sync state only
consumer to 14650000.sysmmu
[ 11.156641] bus: 'platform': add driver exynos-mixer
[ 11.156851] bus: 'platform': driver_probe_device: matched device
14450000.mixer with driver exynos-mixer
[ 11.156866] bus: 'platform': really_probe: probing driver
exynos-mixer with device 14450000.mixer
[ 11.156892] exynos-mixer 14450000.mixer: no pinctrl handle
[ 11.156997] devices_kset: Moving 14450000.mixer to end of list
[ 11.157006] PM: Moving platform:14450000.mixer to end of list
[ 11.157016] exynos-mixer 14450000.mixer: Linked as a consumer to
14650000.sysmmu
[ 11.157065] exynos-mixer 14450000.mixer: Adding to iommu group 3
[ 11.161723] exynos-mixer 14450000.mixer: adding to PM domain DISP
[ 11.161732] exynos-mixer 14450000.mixer: genpd_add_device()
[ 11.165821] exynos-mixer 14450000.mixer: genpd_remove_device()
[ 11.165884] platform 14450000.mixer: Driver exynos-mixer requests
probe deferral
[ 11.165893] platform 14450000.mixer: Added to deferred list
[ 11.175578] devices_kset: Moving 14450000.mixer to end of list
[ 11.175586] PM: Moving platform:14450000.mixer to end of list
[ 11.175595] platform 14450000.mixer: Retrying from deferred list
[root@alarm alarm]# dmesg | grep DISP
[ 0.244348] exynos-sysmmu 14650000.sysmmu: adding to PM domain DISP
[ 0.248034] PM: DISP: Power-off latency exceeded, new value 4000000 ns
[ 11.161723] exynos-mixer 14450000.mixer: adding to PM domain DISP
[ 11.163113] Power domain DISP enable failed
[ 11.168486] exynos-hdmi 14530000.hdmi: adding to PM domain DISP
[ 11.169851] Power domain DISP enable failed
[ 11.178089] Power domain DISP enable failed
Moreover, the gen_pd output is as follows:
[root@alarm pm_genpd]# cat pm_genpd_summary
domain status slaves
/device runtime status
----------------------------------------------------------------------
GSC on
/devices/platform/soc/13e80000.sysmmu suspended
/devices/platform/soc/13e90000.sysmmu suspended
MFC off-0
/devices/platform/soc/11200000.sysmmu suspended
/devices/platform/soc/11210000.sysmmu suspended
/devices/platform/soc/11000000.codec suspended
DISP off-0
/devices/platform/soc/14650000.sysmmu error
In comparison of the experimental image [0], the clock tree for
video-related clocks seems almost OK (e.g. aclk is at 266 MHz instead
of 200 MHz). Here's the clock tree from debugfs:
[root@alarm alarm]# cat /sys/kernel/debug/clk/clk_summary
enable prepare protect
duty
clock count count count rate
accuracy phase cycle
---------------------------------------------------------------------------------------------
32khz_cp 0 0 0 32768
0 0 50000
32khz_ap 0 1 0 32768
0 0 50000
sclk_dptxphy 0 0 0 24000000
0 0 50000
sclk_hdmi27m 0 0 0 24000000
0 0 50000
sclk_hdmi24m 0 0 0 24000000
0 0 50000
sclk_hdmiphy 0 0 0 24000000
0 0 50000
fin_pll 6 7 0 24000000
0 0 50000
mout_aclk300_jpeg 0 0 0 24000000
0 0 50000
mout_fimd1 0 0 0 24000000
0 0 50000
div_fimd1 0 0 0 24000000
0 0 50000
sclk_fimd1 0 0 0 24000000
0 0 50000
mout_pwm 0 0 0 24000000
0 0 50000
dout_pwm 0 0 0 24000000
0 0 50000
sclk_pwm 0 0 0 24000000
0 0 50000
mout_usbd301 1 1 0 24000000
0 0 50000
dout_usbd301 0 0 0 24000000
0 0 50000
sclk_usbd301 0 0 0 24000000
0 0 50000
dout_usbphy301 1 1 0 24000000
0 0 50000
sclk_usbphy301 2 2 0 24000000
0 0 50000
mout_usbd300 1 1 0 24000000
0 0 50000
dout_usbd300 0 0 0 24000000
0 0 50000
sclk_usbd300 0 0 0 24000000
0 0 50000
dout_usbphy300 1 1 0 24000000
0 0 50000
sclk_usbphy300 3 3 0 24000000
0 0 50000
sclk_epll 0 0 0 24000000
0 0 50000
mout_vpllsrc 0 0 0 24000000
0 0 50000
fout_vpll 0 0 0 350000000
0 0 50000
sclk_vpll 0 0 0 350000000
0 0 50000
div_hdmi_pixel 0 0 0 21875000
0 0 50000
sclk_pixel 0 0 0 21875000
0 0 50000
mout_hdmi 0 0 0 21875000
0 0 50000
sclk_hdmi 0 0 0 21875000
0 0 50000
fout_mpll 1 1 0 532000000
0 0 50000
sclk_mpll 1 1 0 532000000
0 0 50000
sclk_mpll_muxed 2 2 0 532000000
0 0 50000
aclk266 1 1 0 266000000
0 0 50000
sss 2 2 0 266000000
0 0 50000
aclk66_pre 1 1 0 266000000
0 0 50000
aclk66 5 10 0 66500000
0 0 50000
hdmi 0 0 0 66500000
0 0 50000
pwm 1 1 0 66500000
0 0 50000
tsadc 1 1 0 66500000
0 0 50000
i2c_hdmi 0 0 0 66500000
0 0 50000
usi3 0 0 0 66500000
0 0 50000
usi2 0 0 0 66500000
0 0 50000
usi1 0 0 0 66500000
0 0 50000
usi0 0 1 0 66500000
0 0 50000
i2c3 0 0 0 66500000
0 0 50000
i2c2 0 1 0 66500000
0 0 50000
i2c1 0 1 0 66500000
0 0 50000
i2c0 0 0 0 66500000
0 0 50000
uart3 0 0 0 66500000
0 0 50000
uart2 1 1 0 66500000
0 0 50000
uart1 0 0 0 66500000
0 0 50000
uart0 0 0 0 66500000
0 0 50000
tmu 0 4 0 66500000
0 0 50000
rtc 0 1 0 66500000
0 0 50000
wdt 1 1 0 66500000
0 0 50000
mct 1 1 0 66500000
0 0 50000
mout_aclk400_isp 0 0 0 532000000
0 0 50000
mout_aclk266_gscl 0 0 0 532000000
0 0 50000
mout_aclk166 0 0 0 532000000
0 0 50000
aclk166 0 0 0 133000000
0 0 50000
fout_kpll 0 0 0 600000000
0 0 50000
mout_kpll 0 0 0 600000000
0 0 50000
sclk_kpll 0 0 0 150000000
0 0 50000
mout_kfc 0 0 0 600000000
0 0 50000
div_kfc 0 0 0 600000000
0 0 50000
div_pclk 0 0 0 120000000
0 0 50000
div_aclk 0 0 0 75000000
0 0 50000
fout_epll 0 0 0 192000000
0 0 50000
mout_audss 0 0 0 192000000
0 0 50000
dout_srp 0 0 0 96000000
0 0 50000
srp_clk 0 0 0 96000000
0 0 50000
dout_aud_bus 0 0 0 19200000
0 0 50000
i2s_bus 0 0 0 19200000
0 0 50000
3830000.i2s_rclk_src 0 0 0
19200000 0 0 50000
3830000.i2s_prescaler 0 0 0
19200000 0 0 50000
3830000.i2s_cdclk 0 0 0
19200000 0 0 50000
mout_i2s 0 0 0 192000000
0 0 50000
dout_i2s 0 0 0 192000000
0 0 50000
sclk_i2s 0 0 0 192000000
0 0 50000
fout_dpll 0 0 0 600000000
0 0 50000
sclk_dpll 0 0 0 600000000
0 0 50000
div_aclk300_jpeg 0 0 0 600000000
0 0 50000
div_aclk300_disp1 0 0 0 300000000
0 0 50000
mout_aclk300_disp1 0 0 0 300000000
0 0 50000
smmu_gscl1 0 0 0 300000000
0 0 50000
smmu_gscl0 0 0 0 300000000
0 0 50000
gscl4 0 0 0 300000000
0 0 50000
gscl3 0 0 0 300000000
0 0 50000
gscl2 0 0 0 300000000
0 0 50000
gscl1 0 0 0 300000000
0 0 50000
gscl0 0 0 0 300000000
0 0 50000
dsim1 0 0 0 300000000
0 0 50000
mie1 0 0 0 300000000
0 0 50000
fimd1 0 0 0 300000000
0 0 50000
div_aclk300_disp0 0 0 0 300000000
0 0 50000
mout_aclk300_disp0 0 0 0 300000000
0 0 50000
sclk_dp1 0 0 0 300000000
0 0 50000
div_aclk300_gscl 0 0 0 300000000
0 0 50000
mout_aclk300_gscl 0 0 0 300000000
0 0 50000
fout_cpll 1 1 0 640000000
0 0 50000
sclk_cpll 1 1 0 640000000
0 0 50000
mout_aclk333 0 0 0 640000000
0 0 50000
div_aclk333 0 0 0 320000000
0 0 50000
mout_aclk333_sub 0 0 0 320000000
0 0 50000
smmu_mfcl 0 0 0 320000000
0 0 50000
smmu_mfcr 0 0 0 320000000
0 0 50000
mfc 0 0 0 320000000
0 0 50000
mout_uart3 0 0 0 640000000
0 0 50000
div_uart3 0 0 0 64000000
0 0 50000
sclk_uart3 0 0 0 64000000
0 0 50000
mout_uart2 1 1 0 640000000
0 0 50000
div_uart2 1 1 0 64000000
0 0 50000
sclk_uart2 1 1 0 64000000
0 0 50000
mout_uart1 0 0 0 640000000
0 0 50000
div_uart1 0 0 0 64000000
0 0 50000
sclk_uart1 0 0 0 64000000
0 0 50000
mout_uart0 0 0 0 640000000
0 0 50000
div_uart0 0 0 0 64000000
0 0 50000
sclk_uart0 0 0 0 64000000
0 0 50000
fout_bpll 1 1 0 800000000
0 0 50000
sclk_bpll 1 1 0 800000000
0 0 50000
sclk_bpll_muxed 2 2 0 800000000
0 0 50000
mout_aclk400 0 0 0 800000000
0 0 50000
aclk400 0 0 0 266666667
0 0 50000
mout_aclk200 1 1 0 800000000
0 0 50000
aclk200 2 4 0 266666667
0 0 50000
dp 0 0 0 266666667
0 0 50000
pdma0 0 1 0 266666667
0 0 50000
pdma1 0 1 0 266666667
0 0 50000
sdmmc2 1 1 0 266666667
0 0 50000
sdmmc1 0 0 0 266666667
0 0 50000
sdmmc0 1 1 0 266666667
0 0 50000
mout_aclk200_disp1 0 0 0
266666667 0 0 50000
smmu_tv 0 0 0 266666667
0 0 50000
smmu_fimd1 0 0 0 266666667
0 0 50000
mixer 0 0 0 266666667
0 0 50000
sclk_mpll_bpll 2 2 0 800000000
0 0 50000
mout_mmc2 1 1 0 800000000
0 0 50000
div_mmc2 1 1 0 800000000
0 0 50000
div_mmc_pre2 1 1 0
200000000 0 0 50000
sclk_mmc2 1 1 0
200000000 0 0 50000
mout_mmc1 0 0 0 800000000
0 0 50000
div_mmc1 0 0 0 72727273
0 0 50000
div_mmc_pre1 0 0 0
72727273 0 0 50000
sclk_mmc1 0 0 0
72727273 0 0 50000
mout_mmc0 1 1 0 800000000
0 0 50000
div_mmc0 1 1 0 800000000
0 0 50000
div_mmc_pre0 1 1 0
200000000 0 0 50000
sclk_mmc0 1 1 0
200000000 0 0 50000
fout_apll 0 0 0 900000000
0 0 50000
mout_apll 0 0 0 900000000
0 0 50000
mout_cpu 0 0 0 900000000
0 0 50000
div_arm 0 0 0 900000000
0 0 50000
div_arm2 0 0 0 900000000
0 0 50000
pclk_dbg 0 0 0 128571429
0 0 50000
div_atb 0 0 0 128571429
0 0 50000
div_cpud 0 0 0 112500000
0 0 50000
div_acp 0 0 0 900000000
0 0 50000
clkout 1 1 0 24000000
0 0 50000
sclk_pcm 0 0 0 0
0 0 50000
pcm_bus 0 0 0 0
0 0 50000
usbd301 1 1 0 0
0 0 50000
usbd300 1 1 0 0
0 0 50000
usbh20 3 3 0 0
0 0 50000
As i see, some years ago it was disscused about problems with HDMI and
the power-domains [1], which led me to try changing some properties in
the device tree.
Disabling the DISP pd and removing samsung,syscon-phandle =
<&pmu_system_controller> property from hdmi node results in sclk_hdmi
and mout_hdmi being moved to sclk_hdmiphy. Furthermore, i got some
weird colorful vertical lines being displayed on my tv.
AFAICT as not fully understand what is going on and not being aware of
what is it required nor missing, i can suppose the following:
1) U-Boot is doing some initialization with power-domains that affects
later on kernel which results in DISP failed.
2) As Exynos5410 currently does not have PMU drivers supported,
there's issues with anything else from the minimal support (reboot,
poweroff).
3) Some clocks from clock driver are not defined correctly. This is
the least possible due that definitions were copied same as described
in working HDMI repo.
Having exposed all these info as background, i would ask if you could
bring some insights to solve this. Thanks in advance.
Best regards,
Gabriel Ribba.
[0]: dn.odroid.com/Ubuntu_XU/20140324/linaro_ubuntu_14.02_server_20140324-odroidxu.img.xz
[1]: https://lists.linaro.org/pipermail/linaro-mm-sig/2015-January/004307.html
