Hi Peter,
> Yes, I agree with that analysis. All mux actions eventually end up with
Good!
> an __i2c_transfer() call on the relevant root adapter. Hmm, but not *all*
> calls. How about SMBus adapters? Should there not be a similar WARN_ON
> in __i2c_smbus_xfer?
Yes, there should. Yeah, that's w
On 2018-12-21 15:50, Wolfram Sang wrote:
>
I think this might be as simple as adding:
if (WARN_ON(adap->dev.parent->power.is_suspended))
return -ESHUTDOWN;
>
> Peter, I think this should work for muxes, too, or? The i2c_transfer()
> call to the mux will not be re
> > > I think this might be as simple as adding:
> > >
> > > if (WARN_ON(adap->dev.parent->power.is_suspended))
> > > return -ESHUTDOWN;
Peter, I think this should work for muxes, too, or? The i2c_transfer()
call to the mux will not be rejected, but it will be later when we reach
the
Hi,
On 20-12-18 22:09, Rafael J. Wysocki wrote:
On Thursday, December 20, 2018 11:00:29 AM CET Hans de Goede wrote:
Hi,
On 19-12-18 23:33, Wolfram Sang wrote:
Hi Lukas, Hans,
On Wed, Dec 19, 2018 at 07:36:54PM +0100, Hans de Goede wrote:
Hi,
On 19-12-18 18:22, Lukas Wunner wrote:
On Wed,
On Thursday, December 20, 2018 11:00:29 AM CET Hans de Goede wrote:
> Hi,
>
> On 19-12-18 23:33, Wolfram Sang wrote:
> > Hi Lukas, Hans,
> >
> > On Wed, Dec 19, 2018 at 07:36:54PM +0100, Hans de Goede wrote:
> >> Hi,
> >>
> >> On 19-12-18 18:22, Lukas Wunner wrote:
> >>> On Wed, Dec 19, 2018 at 0
Hi,
On 19-12-18 23:33, Wolfram Sang wrote:
Hi Lukas, Hans,
On Wed, Dec 19, 2018 at 07:36:54PM +0100, Hans de Goede wrote:
Hi,
On 19-12-18 18:22, Lukas Wunner wrote:
On Wed, Dec 19, 2018 at 05:48:17PM +0100, Wolfram Sang wrote:
+static inline void i2c_mark_adapter_suspended(struct i2c_adapte
Hi Lukas, Hans,
On Wed, Dec 19, 2018 at 07:36:54PM +0100, Hans de Goede wrote:
> Hi,
>
> On 19-12-18 18:22, Lukas Wunner wrote:
> > On Wed, Dec 19, 2018 at 05:48:17PM +0100, Wolfram Sang wrote:
> > > +static inline void i2c_mark_adapter_suspended(struct i2c_adapter *adap)
> > > +{
> > > + i2c_loc
Hi,
On 19-12-18 18:22, Lukas Wunner wrote:
On Wed, Dec 19, 2018 at 05:48:17PM +0100, Wolfram Sang wrote:
+static inline void i2c_mark_adapter_suspended(struct i2c_adapter *adap)
+{
+ i2c_lock_bus(adap, I2C_LOCK_ROOT_ADAPTER);
+ set_bit(I2C_ALF_IS_SUSPENDED, &adap->locked_flags);
+
On Wed, Dec 19, 2018 at 05:48:17PM +0100, Wolfram Sang wrote:
> +static inline void i2c_mark_adapter_suspended(struct i2c_adapter *adap)
> +{
> + i2c_lock_bus(adap, I2C_LOCK_ROOT_ADAPTER);
> + set_bit(I2C_ALF_IS_SUSPENDED, &adap->locked_flags);
> + i2c_unlock_bus(adap, I2C_LOCK_ROOT_ADA
A few drivers open code handling of suspended adapters. It could be
handled by the core, though, to ensure generic handling. This patch adds
the flag and accessor functions. The usage of these helpers is optional,
though. See the kerneldoc in this patch.
Signed-off-by: Wolfram Sang
---
drivers/i
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