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| author | Cedric Poignet <a0919860@ti.com> | 2011-10-31 14:23:17 +0100 |
|---|---|---|
| committer | Benoit Goby <benoit@android.com> | 2011-11-07 18:33:05 -0800 |
| commit | ae4fc74ca45ceaf12bb19651221c0037fff98f3a (patch) | |
| tree | a578f814735f23c2784a209ad83fdbfb43d9e236 /drivers/omap_hsi | |
| parent | 5ab1c88d5a8902bd86146677dc4ecf42978b96aa (diff) | |
| download | kernel_samsung_tuna-ae4fc74ca45ceaf12bb19651221c0037fff98f3a.zip kernel_samsung_tuna-ae4fc74ca45ceaf12bb19651221c0037fff98f3a.tar.gz kernel_samsung_tuna-ae4fc74ca45ceaf12bb19651221c0037fff98f3a.tar.bz2 | |
OMAP4:HSI: Fix CA_WAKE status before 4wires mode
When switching from 3 wires mode to 4 wires mode, the CA_WAKE
status need to be cleared/initialized to avoid spurious CA_WAKE events
detection if the signal toggles during the 3Wires mode.
Change-Id: I4acb38ce63dcbdf6c5a445d92ce7fdd8f91c612f
Signed-off-by: Cedric Poignet <a0919860@ti.com>
Diffstat (limited to 'drivers/omap_hsi')
| -rw-r--r-- | drivers/omap_hsi/hsi_driver_if.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/omap_hsi/hsi_driver_if.c b/drivers/omap_hsi/hsi_driver_if.c index 73b8263..c0a31d7 100644 --- a/drivers/omap_hsi/hsi_driver_if.c +++ b/drivers/omap_hsi/hsi_driver_if.c @@ -898,6 +898,10 @@ int hsi_ioctl(struct hsi_device *dev, unsigned int command, void *arg) /* HW errata HSI-C1BUG00085 : go back to normal IDLE mode */ if (hsi_driver_device_is_hsi(to_platform_device(hsi_ctrl->dev))) hsi_set_pm_default(hsi_ctrl); + /* Clean CA_WAKE status */ + pport->cawake_status = -1; + hsi_outl(HSI_CAWAKEDETECTED, base, + HSI_SYS_MPU_STATUS_REG(port, pport->n_irq)); hsi_driver_enable_interrupt(pport, HSI_CAWAKEDETECTED); hsi_outl_and(HSI_SET_WAKE_3_WIRES_MASK, base, HSI_SYS_SET_WAKE_REG(port)); |