[alsa-devel] [PATCH] ALSA: ASoC: cs4720: use snd_soc_cache_sync()
timur at freescale.com
Tue Nov 22 16:47:41 CET 2011
Daniel Mack wrote:
> The code is so simple that I'm starting to suspect
> i2c_smbus_write_byte_data() is doing something very wrong, but I can't
> trace it without a hardware I2C analyzer right now. The i2c-regmap
> low-level implementation uses different access functions under the hood,
> so maybe that's a regression.
What platform are you testing this on? I never really understood the i2c vs. smbus thing (I can never tell which function an i2c device really needs), so I only know that the i2c code works on my PowerPC board.
Also keep in mind that a patch that affects i2c_smbus_write_byte_data() on PowerPC was recently posted, but not approved yet. Check the thread, "i2c/busses: (mpc) Add support for SMBUS_READ_BLOCK_DATA".
Linux kernel developer at Freescale
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