Re: [PATCH 1/2] i2c: qup: Cleared the error bits in ISR

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, May 09, 2016 at 06:14:30PM +0530, Abhishek Sahu wrote:
> 1. Current QCOM I2C driver hangs when sending data to address 0x03-0x07
> in some scenarios. The QUP controller generates invalid write in this
> case, since these addresses are reserved for different bus formats.
> 
> 2. Also, the error handling is done by I2C QUP ISR in the case of DMA
> mode. The state need to be RESET in case of any error for clearing the
> available data in FIFO, which otherwise leaves the BAM DMA controller
> in hang state.
> 
> This patch fixes the above two issues by clearing the error bits from
> I2C and QUP status in ISR in case of I2C error, QUP error and resets
> the QUP state to clear the FIFO data.
> 
> Signed-off-by: Abhishek Sahu <absahu@xxxxxxxxxxxxxx>

Applied to for-next, thanks!

Attachment: signature.asc
Description: PGP signature


[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [Linux for Sparc]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux