Fabio Estevam 0c727a4204 Revert "serial: imx: remove unbalanced clk_prepare" ... This reverts commit 9e7b399d65. Commit ("9e7b399d6528ea") causes the following warning and sometimes also hangs the system: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at kernel/locking/mutex.c:868 mutex_trylock+0x20c/0x22c() DEBUG_LOCKS_WARN_ON(in_interrupt()) Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.2.0-rc7-next-20150818-00001-g14418a6 #4 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) Backtrace: [<80012f08>] (dump_backtrace) from [<800130a4>] (show_stack+0x18/0x1c) r6:00000364 r5:00000000 r4:00000000 r3:00000000 [<8001308c>] (show_stack) from [<807902b8>] (dump_stack+0x88/0xa4) [<80790230>] (dump_stack) from [<8002a604>] (warn_slowpath_common+0x80/0xbc) r5:807945c4 r4:80ab3b50 [<8002a584>] (warn_slowpath_common) from [<8002a6e4>] (warn_slowpath_fmt+0x38/0x40) r8:00000000 r7:8131100c r6:8054c3cc r5:8131300c r4:80b0a570 [<8002a6b0>] (warn_slowpath_fmt) from [<807945c4>] (mutex_trylock+0x20c/0x22c) r3:8095d0d8 r2:8095ab28 [<807943b8>] (mutex_trylock) from [<8054c3cc>] (clk_prepare_lock+0x14/0xf4) r7:8131100c r6:be3f0c80 r5:00000037 r4:be3f0c80 [<8054c3b8>] (clk_prepare_lock) from [<8054dbfc>] (clk_prepare+0x18/0x30) r5:00000037 r4:be3f0c80 [<8054dbe4>] (clk_prepare) from [<8036a600>] (imx_console_write+0x30/0x244) r4:812d0bc8 r3:8132b9a4 To reproduce the problem we only need to let the board idle for something like 30 seconds. Tested on a imx6q-sabresd. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2015-10-04 18:51:42 +01:00
..
hvc	xen: MFN/GFN/BFN terminology changes for 4.3-rc0	2015-09-10 16:21:11 -07:00
ipwireless
serial	Revert "serial: imx: remove unbalanced clk_prepare"	2015-10-04 18:51:42 +01:00
vt	tty: vt: Fix !TASK_RUNNING diagnostic warning from paste_selection()	2015-07-23 18:08:29 -07:00
amiserial.c
bfin_jtag_comm.c
cyclades.c
ehv_bytechan.c
goldfish.c
isicom.c
Kconfig
Makefile
metag_da.c
mips_ejtag_fdc.c	MIPS: Remove "weak" from get_c0_fdc_int() declaration	2015-09-03 12:07:38 +02:00
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c	tty: Convert use of __constant_htons to htons	2015-07-23 15:10:25 -07:00
n_hdlc.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c	Merge 4.2-rc4 into tty-next	2015-07-27 11:12:39 -07:00
nozomi.c
pty.c	pty: Add debug message for ptmx open	2015-07-23 18:37:32 -07:00
rocket.c
rocket.h
rocket_int.h
synclink.c
synclink_gt.c
synclinkmp.c
sysrq.c	mm, oom: pass an oom order of -1 when triggered by sysrq	2015-09-08 15:35:28 -07:00
tty_audit.c
tty_buffer.c	tty: buffers: Move hidden buffer index advance into outer loop	2015-07-23 18:23:56 -07:00
tty_io.c	Avoid usb reset crashes by making tty_io cdevs truly dynamic	2015-08-03 15:24:43 -07:00
tty_ioctl.c	tty: Replace inline #ifdef TTY_DEBUG_WAIT_UNTIL_SENT	2015-07-23 18:37:31 -07:00
tty_ldisc.c	tty: core: Improve ldisc debug messages	2015-07-23 18:37:31 -07:00
tty_ldsem.c
tty_mutex.c
tty_port.c