Hi Wolfram, On Wed, Jun 13, 2012 at 10:03:48AM +0100, viresh kumar wrote: > On Tue, May 15, 2012 at 7:58 AM, Viresh Kumar <viresh.kumar@xxxxxx> wrote: > > On 5/4/2012 3:10 PM, Viresh KUMAR wrote: > >> Add i2c bus recovery infrastructure to i2c adapters as specified in the i2c > >> protocol Rev. 03 section 3.16 titled "Bus clear". > >> > >> http://www.nxp.com/documents/user_manual/UM10204.pdf > >> > >> Sometimes during operation i2c bus hangs and we need to give dummy clocks to > >> slave device to start the transfer again. Now we may have capability in the bus > >> controller to generate these clocks or platform may have gpio pins which can be > >> toggled to generate dummy clocks. This patch supports both. > >> > >> This patch also adds in generic bus recovery routines gpio or scl line based > >> which can be used by bus controller. In addition controller driver may provide > >> its own version of the bus recovery routine. > >> > >> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxx> > >> --- > >> Documentation/i2c/bus-recovery | 87 ++++++++++++++++++++++ > >> drivers/i2c/i2c-core.c | 160 ++++++++++++++++++++++++++++++++++++++++ > >> drivers/i2c/i2c-mux.c | 9 ++- > >> include/linux/i2c.h | 58 ++++++++++++++ > >> 4 files changed, 313 insertions(+), 1 deletions(-) > >> create mode 100644 Documentation/i2c/bus-recovery > > > > Hi Wolfram, > > > > Any inputs on this patch. > > Ping. Any chance of this passing through your tree, as we are dependent on this. -- regards Shiraz -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
