Re: [PATCH v6 00/10] rockchip: kevin: Enable edp display

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Hi Heiko,

On 10/31/2017 07:01 AM, Heiko Stuebner wrote:
As I was just looking at the edp dts change in patch1 again, does this
series also contain a fix for the issue below [0] ?

I'm still seeing this on 4.14-rc6 with the most recent drm tree merged in.

i saw that too, it should due to our psr code...i think Zain has solved these in chromeos kernel, i will ask Zain if he have time to upstream them, or maybe i'll try to upstream them.

Heiko

[0]

[   27.960120] BUG: scheduling while atomic: kworker/1:1/68/0x00000002
[   27.974429] Modules linked in: rockchipdrm dw_hdmi analogix_dp drm_kms_helper panel_simple crc32_ce drm crct10dif_ce rockchip_saradc pwm_bl pwm_cros_ec rockchip_thermal ip_tables x_tabl
es ipv6 smsc95xx smsc75xx ax88179_178a asix usbnet phy_rockchip_pcie pcie_rockchip
[   28.008769] CPU: 1 PID: 68 Comm: kworker/1:1 Tainted: G        W       4.14.0-rc7-03201-g12490811b353 #559
[   28.008774] Hardware name: Google Kevin (DT)
[   28.008825] Workqueue: events analogix_dp_psr_work [rockchipdrm]
[   28.008828] Call trace:
[   28.008838] [<ffff000008088d60>] dump_backtrace+0x0/0x378
[   28.008842] [<ffff0000080890ec>] show_stack+0x14/0x20
[   28.008847] [<ffff0000089b04d8>] dump_stack+0x9c/0xbc
[   28.008852] [<ffff0000080ec4b4>] __schedule_bug+0x4c/0x70
[   28.008856] [<ffff0000089c4828>] __schedule+0x558/0x5e8
[   28.008859] [<ffff0000089c48f0>] schedule+0x38/0xa0
[   28.008864] [<ffff0000089c8194>] schedule_hrtimeout_range_clock+0x84/0xe8
[   28.008867] [<ffff0000089c8208>] schedule_hrtimeout_range+0x10/0x18
[   28.008870] [<ffff0000089c7c74>] usleep_range+0x64/0x78
[   28.008882] [<ffff000000ef56e4>] analogix_dp_transfer+0x16c/0xa88 [analogix_dp]
[   28.008891] [<ffff000000ef2190>] analogix_dpaux_transfer+0x10/0x18 [analogix_dp]
[   28.008950] [<ffff000000ddbb1c>] drm_dp_dpcd_access+0x4c/0xf8 [drm_kms_helper]
[   28.008994] [<ffff000000ddbbe4>] drm_dp_dpcd_write+0x1c/0x28 [drm_kms_helper]
[   28.009002] [<ffff000000ef2130>] analogix_dp_disable_psr+0x60/0xb0 [analogix_dp]
[   28.009036] [<ffff000000f8398c>] analogix_dp_psr_work+0x4c/0xc0 [rockchipdrm]
[   28.009040] [<ffff0000080dff44>] process_one_work+0x1d4/0x348
[   28.009043] [<ffff0000080e0100>] worker_thread+0x48/0x470
[   28.009048] [<ffff0000080e63d4>] kthread+0x12c/0x130
[   28.009052] [<ffff000008084b88>] ret_from_fork+0x10/0x18






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