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| author | Fei Yang <fei.yang@intel.com> | 2011-11-07 14:40:33 -0800 |
|---|---|---|
| committer | mgross <mark.gross@intel.com> | 2011-11-09 13:21:22 -0800 |
| commit | 9767412bc65af3c4bc9181d682995d31c9ac312d (patch) | |
| tree | d4084f67d84b615b88289fbdc29d701c9e873204 /drivers/i2c | |
| parent | 9433e2e14a5c4d3ed6ed7245a15af7902183ff74 (diff) | |
| download | kernel-mfld-blackbay-9767412bc65af3c4bc9181d682995d31c9ac312d.tar.gz kernel-mfld-blackbay-9767412bc65af3c4bc9181d682995d31c9ac312d.tar.bz2 kernel-mfld-blackbay-9767412bc65af3c4bc9181d682995d31c9ac312d.zip | |
I2C: the i2c controller is expected to be enabled when there is a
transfer request. Runtiem resume should only power on and initialize
the device to a known default state. Enabling the device on runtime
resume would trigger a spurious interrupt even when there is no
function driver acutally using the i2c device, thus causing a kernel
panic as dev->msgs == NULL.
Change-Id: I708e0d532aa0cdd7cb5161d8643dd5186d193243
Signed-off-by: Fei Yang <fei.yang@intel.com>
Reviewed-on: http://android.intel.com:8080/23503
Reviewed-by: Gross, Mark <mark.gross@intel.com>
Tested-by: Gross, Mark <mark.gross@intel.com>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-pcidrv.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 9e89e7313d6..837dd223465 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -182,7 +182,6 @@ static int i2c_dw_pci_resume(struct device *dev) pci_restore_state(pdev); i2c_dw_init(i2c); - i2c_dw_enable(i2c); return 0; } |