On Sun, Aug 19, 2012 at 06:07:55PM -0700, Bill Huang wrote: > Add DT property "ti,system-power-controller" telling whether or not this > pmic is in charge of controlling the system power, so the power off > routine can be hooked up to system call "pm_power_off". > > Based on the work by: > Dan Willemsen <dwillemsen@xxxxxxxxxx> > > Signed-off-by: Bill Huang <bilhuang@xxxxxxxxxx> > Tested-by: Stephen Warren <swarren@xxxxxxxxxxxxx> > --- > .../devicetree/bindings/regulator/tps6586x.txt | 6 ++++++ > drivers/mfd/tps6586x.c | 19 +++++++++++++++++++ > include/linux/mfd/tps6586x.h | 1 + > 3 files changed, 26 insertions(+), 0 deletions(-) Hi, I've seen the following while trying this patch applied on top of next-20120817: [ 40.581151] Power down. [ 41.583160] ------------[ cut here ]------------ [ 41.587784] WARNING: at /home/thierry.reding/src/kernel/linux-ipmp.git/drivers/i2c/busses/i2c-tegra.c:525 tegra_i2c_xfer+0x21c/0x29c() [ 41.599850] Modules linked in: [ 41.602927] [<c0014074>] (unwind_backtrace+0x0/0xf8) from [<c00265a8>] (warn_slowpath_common+0x4c/0x64) [ 41.612304] [<c00265a8>] (warn_slowpath_common+0x4c/0x64) from [<c00265dc>] (warn_slowpath_null+0x1c/0x24) [ 41.621947] [<c00265dc>] (warn_slowpath_null+0x1c/0x24) from [<c02a2944>] (tegra_i2c_xfer+0x21c/0x29c) [ 41.631244] [<c02a2944>] (tegra_i2c_xfer+0x21c/0x29c) from [<c029f5e8>] (__i2c_transfer+0x44/0x80) [ 41.640192] [<c029f5e8>] (__i2c_transfer+0x44/0x80) from [<c02a0698>] (i2c_transfer+0x7c/0xb8) [ 41.648796] [<c02a0698>] (i2c_transfer+0x7c/0xb8) from [<c0232a60>] (regmap_i2c_read+0x48/0x64) [ 41.657485] [<c0232a60>] (regmap_i2c_read+0x48/0x64) from [<c0230304>] (_regmap_raw_read+0x90/0x98) [ 41.666518] [<c0230304>] (_regmap_raw_read+0x90/0x98) from [<c023035c>] (_regmap_read+0x50/0xa8) [ 41.675290] [<c023035c>] (_regmap_read+0x50/0xa8) from [<c02300c4>] (_regmap_update_bits+0x24/0x64) [ 41.684322] [<c02300c4>] (_regmap_update_bits+0x24/0x64) from [<c0230b88>] (regmap_update_bits+0x3c/0x58) [ 41.693885] [<c0230b88>] (regmap_update_bits+0x3c/0x58) from [<c0237c30>] (tps6586x_power_off+0x18/0x38) [ 41.703362] [<c0237c30>] (tps6586x_power_off+0x18/0x38) from [<c000edf4>] (machine_power_off+0x1c/0x24) [ 41.712749] [<c000edf4>] (machine_power_off+0x1c/0x24) from [<c0037ca4>] (sys_reboot+0x138/0x1b0) [ 41.721612] [<c0037ca4>] (sys_reboot+0x138/0x1b0) from [<c000e000>] (ret_fast_syscall+0x0/0x30) [ 41.730293] ---[ end trace 9af366974fefa459 ]--- [ 41.734906] tegra-i2c tegra-i2c.3: i2c transfer timed out [ 41.740689] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000 [ 41.740689] [ 41.749823] [<c0014074>] (unwind_backtrace+0x0/0xf8) from [<c03e7090>] (panic+0x8c/0x1d8) [ 41.757993] [<c03e7090>] (panic+0x8c/0x1d8) from [<c002b7b8>] (do_exit+0x694/0x750) [ 41.765636] [<c002b7b8>] (do_exit+0x694/0x750) from [<c002bad0>] (do_group_exit+0x3c/0xb0) [ 41.773884] [<c002bad0>] (do_group_exit+0x3c/0xb0) from [<c002bb54>] (__wake_up_parent+0x0/0x18) Thierry
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