It keeps failing (R7800) with the stack trace below
BUG: scheduling while atomic: kworker/0:1/26/0x00000002
(unwind_backtrace) from [<c02121d0>] (show_stack+0x10/0x14)
(show_stack) from [<c03932e4>] (dump_stack+0x7c/0x9c)
(dump_stack) from [<c0239b90>] (__schedule_bug+0x5c/0x80)
(__schedule_bug) from [<c05b7260>] (__schedule+0x50/0x3f4)
(__schedule) from [<c05b76a8>] (schedule+0xa4/0xd4)
(schedule) from [<c05ba430>] (schedule_hrtimeout_range_clock+0xc8/0x100)
(schedule_hrtimeout_range_clock) from [<c05ba480>]
(schedule_hrtimeout_range+0x18/0x20)
(schedule_hrtimeout_range) from [<c05b9f78>] (usleep_range+0x48/0x50)
(usleep_range) from [<c03f333c>] (__clk_hfpll_enable+0x44/0xd0)
(__clk_hfpll_enable) from [<c03f3474>] (clk_hfpll_set_rate+0xac/0xc4)
(clk_hfpll_set_rate) from [<c03ec390>] (clk_change_rate+0xf4/0x1fc)
(clk_change_rate) from [<c03ec510>] (clk_core_set_rate_nolock+0x78/0x94)
(clk_core_set_rate_nolock) from [<c03ec54c>] (clk_set_rate+0x20/0x30)
(clk_set_rate) from [<c0424168>] (dev_pm_opp_set_rate+0x190/0x26c)
(dev_pm_opp_set_rate) from [<c04a8548>] (set_target+0x40/0x108)
(set_target) from [<c04a4.140>] (__cpufreq_driver_target+0x3f4/0x488)
(__cpufreq_driver_target) from [<c04a7494>] (od_dbs_timer+0xcc/0x154)
(od_dbs_timer) from [<c04a7998>] (dbs_work_handler+0x2c/0x54)
(dbs_work_handler) from [<c02309e8>] (process_one_work+0x1c0/0x2f0)
(process_one_work) from [<c02319a8>] (worker_thread+0x2a4/0x404)
(worker_thread) from [<c0235944>] (kthread+0xd8/0xe8)
(kthread) from [<c020eef0>] (ret_from_fork+0x14/0x24)
Signed-off-by: Marc Benoit <marcb62185@gmail.com>
[slh: rebase for kernel v4.14 as well]
Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
- Rebased the patches for 4.14
- Dropped spi-qup and 0027, 0028, 0029
clk patches since it's already included
in upstream.
Tested on IPQ AP148 Board:
1) NOR boot and NAND boot
2) Tested USB and PCIe interfaces
3) WDOG test
4) cpu frequency scaling
5) ethernet, 2G and 5G WiFi
6) ubi sysupgrade
Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
A newer clk and cpufreq drivers for ipq806x platform had been sent upstream.
A change that i have noticed is that now it's possible to set min, cur and max frequencies from sysfs (previously it was bugged and caused nothing).
Following patches are removed:
- 0036-clk-Avoid-sending-high-rates-to-downstream-clocks-du.patch - seems it was dropped from the patchset by current committer.
- 0044-clk-qcom-krait-Remove-CLK_IS_ROOT.patch - already applied to the driver itself in the corresponding patch.
- 0057-clk-qcom-Add-regmap-mux-div-clocks-support.patch - seem to be irrelevant to ipq806x.
Signed-off-by: Pavel Kubelun <be.dissent@gmail.com>
1)Changes
- Rebased the patches for linux-4.4.7
- Added patch to fix spi nor fifo and dma support
- Added patch to configure watchdog barktime
2)Testing
Tested on IPQ AP148 Board:
a. NOR boot and NAND boot
b. ethernet network and ath10k wifi
c. ubi sysupgrade
UnTested
dwc3 usb has not been validated on IPQ board(AP148)
3)Known Issues:
Once we flash ubi image on AP148, and if we reset the board, uboot on
first boot creates PEB and LEB for dynamic sized partitions, which is incorrect
and not what linux expects which causes errors when trying to mount rootfs.
In order to test this, we can use the below steps:
a. Flash the ubi image on board and don't reset the board
b. load the kernel fit image in RAM and boot from there.
Signed-off-by: Ram Chandra Jangir <rjangi@codeaurora.org>
Koen Vandeputte