Revision d3b3e15da14ded61c9654db05863b04a2435f4cc authored by Alex Deucher on 17 April 2011, 08:20:19 UTC, committed by Jean Delvare on 17 April 2011, 08:20:19 UTC
Apparently some distros set i2c-algo-bit.bit_test to 1 by default. In some cases this causes i2c_bit_add_bus to fail and prevents the i2c bus from being added. In the radeon case, we fail to add the ddc i2c buses which prevents the driver from being able to detect attached monitors. The i2c bus works fine even if bit_test fails. This is likely due to gpio switching that is required and handled in the pre/post_xfer hooks, so call the pre/post_xfer hooks in the bit test as well. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=36221 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org [.38 down to .34]
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| File | Mode | Size |
|---|---|---|
| .gitignore | -rw-r--r-- | 151 bytes |
| Kconfig | -rw-r--r-- | 5.3 KB |
| Makefile | -rw-r--r-- | 2.3 KB |
| gen_init_cpio.c | -rw-r--r-- | 12.4 KB |
| initramfs_data.S | -rw-r--r-- | 1.3 KB |
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