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| author | Sebastian Rasmussen <sebastian.rasmussen@stericsson.com> | 2011-08-12 10:28:53 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2011-10-24 14:09:19 +0200 |
| commit | 597045de35caaef68a11b6defbb618710e1a1e52 (patch) | |
| tree | fab309289b771709c2a658591e73319bfbc9415a /drivers/mfd/db8500-prcmu.c | |
| parent | mfd: db8500-prcmu tweak for modem wakeup (diff) | |
| download | linux-597045de35caaef68a11b6defbb618710e1a1e52.tar.xz linux-597045de35caaef68a11b6defbb618710e1a1e52.zip | |
mfd: db8500-prcmu reset code retrieval
This implements the reset code retrieval function so we can
ipso facto get to know how the system was reset.
Signed-off-by: Sebastian Rasmussen <sebastian.rasmussen@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/db8500-prcmu.c')
| -rw-r--r-- | drivers/mfd/db8500-prcmu.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index cb58e44b1e45..6fd4e2993520 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -1836,6 +1836,17 @@ void db8500_prcmu_system_reset(u16 reset_code) } /** + * db8500_prcmu_get_reset_code - Retrieve SW reset reason code + * + * Retrieves the reset reason code stored by prcmu_system_reset() before + * last restart. + */ +u16 db8500_prcmu_get_reset_code(void) +{ + return readw(tcdm_base + PRCM_SW_RST_REASON); +} + +/** * prcmu_reset_modem - ask the PRCMU to reset modem */ void prcmu_modem_reset(void) |