[PATCH 1/5] mfd: tps65218: make INT[12] and STATUS registers volatile

[Felipe Balbi]

Hi,

On Thu, Jan 08, 2015 at 10:25:12AM -0600, Felipe Balbi wrote:
> On Tue, Jan 06, 2015 at 11:37:34AM -0600, Felipe Balbi wrote:
> > On Fri, Dec 26, 2014 at 01:28:20PM -0600, Felipe Balbi wrote:
> > > STATUS register can be modified by the HW, so we
> > > should bypass cache because of that.
> > > 
> > > In the case of INT[12] registers, they are the ones
> > > that actually clear the IRQ source at the time they
> > > are read. If we rely on the cache for them, we will
> > > never be able to clear the interrupt, which will cause
> > > our IRQ line to be disabled due to IRQ throttling.
> > > 
> > > Fixes: 44b4dc6 mfd: tps65218: Add driver for the TPS65218 PMIC
> > > Cc: <stable at vger.kernel.org> # v3.15+
> > > Cc: Keerthy <j-keerthy at ti.com>
> > > Cc: Lee Jones <lee.jones at linaro.org>
> > > Signed-off-by: Felipe Balbi <balbi at ti.com>
> > 
> > ping
> 
> another ping. Without this and the following patch TPS65218 power button
> driver which was already applied by Dmitry, won't work.

Anybody ? -rc4 is out and tps65218 is still broken because nobody has
acted on these two patches. All other patches which are meant for 3.20
merge window are applied and because of these pending, those patches
won't work.

> > > ---
> > >  drivers/mfd/tps65218.c | 11 +++++++++++
> > >  1 file changed, 11 insertions(+)
> > > 
> > > diff --git a/drivers/mfd/tps65218.c b/drivers/mfd/tps65218.c
> > > index 0d256cb..2243f75 100644
> > > --- a/drivers/mfd/tps65218.c
> > > +++ b/drivers/mfd/tps65218.c
> > > @@ -125,10 +125,21 @@ int tps65218_clear_bits(struct tps65218 *tps, unsigned int reg,
> > >  }
> > >  EXPORT_SYMBOL_GPL(tps65218_clear_bits);
> > >  
> > > +static const struct regmap_range tps65218_yes_ranges[] = {
> > > +	regmap_reg_range(TPS65218_REG_INT1, TPS65218_REG_INT2),
> > > +	regmap_reg_range(TPS65218_REG_STATUS, TPS65218_REG_STATUS),
> > > +};
> > > +
> > > +static const struct regmap_access_table tps65218_volatile_table = {
> > > +	.yes_ranges = tps65218_yes_ranges,
> > > +	.n_yes_ranges = ARRAY_SIZE(tps65218_yes_ranges),
> > > +};
> > > +
> > >  static struct regmap_config tps65218_regmap_config = {
> > >  	.reg_bits = 8,
> > >  	.val_bits = 8,
> > >  	.cache_type = REGCACHE_RBTREE,
> > > +	.volatile_table = &tps65218_volatile_table,
> > >  };
> > >  
> > >  static const struct regmap_irq tps65218_irqs[] = {
> > > -- 
> > > 2.2.0
> > > 
> > 
> > -- 
> > balbi
> 
> 
> 
> -- 
> balbi



-- 
balbi
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