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| author | Kevin Hilman <khilman@linaro.org> | 2013-05-09 01:48:01 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2013-05-09 01:48:01 +0200 |
| commit | e7e17c538604928b98107a08c2c5dc54745d85fe (patch) | |
| tree | 3e277bae6459688563e7aaf3340331e5aefc2b4e /Documentation/devicetree | |
| parent | ARM: OMAP: RX-51: change probe order of touchscreen and panel SPI devices (diff) | |
| download | linux-e7e17c538604928b98107a08c2c5dc54745d85fe.tar.xz linux-e7e17c538604928b98107a08c2c5dc54745d85fe.zip | |
ARM: OMAP2+: omap_device: use late_initcall_sync
If DEBUG_LL and earlyprintk are enabled, and omap-serial.c is compiled
as a module, the kernel boot hangs early as the clocks for serial port
are cut while earlyprintk still uses the port.
The problem is a race between the late_initcall for omap_device (which
idles devices that have no drivers) and the late_initcall in
kernel/printk.c which turns off the earlyconsole. Any printks
that happen between this omap_device late initcall and the earlyconsole
late initcall will crash when accessing the UART.
The fix is to ensure the omap_device initcall happens after the
earlyconsole initcall.
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'Documentation/devicetree')
0 files changed, 0 insertions, 0 deletions