Hi Stephen,
On Tue, Mar 07, 2017 at 06:11:57AM -0800, Stephen Boyd wrote:
> On 03/07, Maxime Ripard wrote:
> > So far, divider_round_rate only considers the parent clock returned by
> > clk_hw_get_parent.
> >
> > This works fine on clocks that have a single pa
_rate(hw, clk_hw_get_parent(hw), E2, E3, E4, E5, E6)
...>
}
Signed-off-by: Maxime Ripard
Cc: Carlo Caione
Cc: Kevin Hilman
Cc: Vladimir Zapolskiy
Cc: Sylvain Lemieux
Cc: Andy Gross
Cc: David Brown
Cc: Alessandro Zummo
Cc: Alexandre Belloni
Cc: linux-amlo...@lists.infradead.org
Cc
s: 847b8bf62eb4 ("rtc: sun6i: Expose the 32kHz oscillator")
> Signed-off-by: Wei Yongjun
Acked-by: Maxime Ripard
Thanks,
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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On Tue, Jan 24, 2017 at 06:49:35PM +0100, Alexandre Belloni wrote:
> Hi,
>
> On 23/01/2017 at 11:41:45 +0100, Maxime Ripard wrote :
> > Hi,
> >
> > The RTC used in the A31 and later SoC has an accuracy issue, which is
> > already significant even after a couple
Now that we have a devm variant of rtc_device_register, switch to it.
Signed-off-by: Maxime Ripard
---
drivers/rtc/rtc-sun6i.c | 14 ++
1 file changed, 2 insertions(+), 12 deletions(-)
diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index 37f65c50ab2d..613f42ade533
r) in the case where we're missing that phandle.
Signed-off-by: Maxime Ripard
---
Documentation/devicetree/bindings/rtc/sun6i-rtc.txt | 10 +-
drivers/rtc/rtc-sun6i.c | 146 +++--
2 files changed, 143 insertions(+), 13 deletions(-)
diff --git a/Doc
external oscillator is reported to be mandatory in the
Allwinner datasheet, so we can just switch to it.
Cc: sta...@vger.kernel.org
Fixes: 9765d2d94309 ("rtc: sun6i: Add sun6i RTC driver")
Signed-off-by: Maxime Ripard
---
drivers/rtc/rtc-sun6i.c | 6 ++
1 file changed, 6 insertions(+), 0
Some registers have a read-modify-write access pattern that are not atomic.
Add some locking to prevent from concurrent accesses.
Cc: sta...@vger.kernel.org
Acked-by: Chen-Yu Tsai
Signed-off-by: Maxime Ripard
---
drivers/rtc/rtc-sun6i.c | 17 +++--
1 file changed, 15 insertions
Since we have to provide the clock very early on, the RTC driver cannot be
built as a module. Make sure that won't happen.
Cc: sta...@vger.kernel.org
Signed-off-by: Maxime Ripard
---
drivers/rtc/Kconfig | 2 +-
drivers/rtc/rtc-sun6i.c | 7 +--
2 files changed, 2 insertions(
So far, the LOSC was generated through the RTC internal oscillator, which
was a pretty poor and inaccurate choice.
Now that the RTC properly exposes its internal mux between its oscillator
and the external oscillator, we can use it were relevant.
Signed-off-by: Maxime Ripard
---
arch/arm/boot
The datasheet provided by Allwinner requires oscillators with an accuracy
of 50ppm. Add it to our fixed clocks so that we can properly track the
accuracy chain.
Signed-off-by: Maxime Ripard
---
arch/arm/boot/dts/sun8i-a23-a33.dtsi | 2 ++
1 file changed, 2 insertions(+), 0 deletions(-)
diff
witched to
devm
- Reordered the patches
Maxime Ripard (7):
rtc: sun6i: Disable the build as a module
rtc: sun6i: Add some locking
rtc: sun6i: Switch to the external oscillator
rtc: sun6i: Expose the 32kHz oscillator
rtc: sun6i: Switch to devm_rtc_device_register
ARM: sun8i: a23/a33: Enabl
is time by making it part of the CCF. It
turned out to be a bit more complicated than one would expect since the mux
found inside the RTC also controls one of the input of the main clock unit.
Therefore, it needs to be probed before the main clock unit driver.
Let me know what you think,
Maxime
Max
The datasheet provided by Allwinner requires oscillators with an accuracy
of 50ppm. Add it to our fixed clocks so that we can properly track the
accuracy chain.
Signed-off-by: Maxime Ripard
---
arch/arm/boot/dts/sun8i-a23-a33.dtsi | 2 ++
1 file changed, 2 insertions(+), 0 deletions(-)
diff
Since we have to provide the clock very early on, the RTC driver cannot be
built as a module. Make sure that won't happen.
Signed-off-by: Maxime Ripard
---
drivers/rtc/Kconfig | 2 +-
drivers/rtc/rtc-sun6i.c | 17 +
2 files changed, 2 insertions(+), 17 deletions(-)
So far, the LOSC was generated through the RTC internal oscillator, which
was a pretty poor and inaccurate choice.
Now that the RTC properly exposes its internal mux between its oscillator
and the external oscillator, we can use it were relevant.
Signed-off-by: Maxime Ripard
---
arch/arm/boot
The internal oscillator is way too inaccurate to do something useful with
it. Switch to the external oscillator if it is available.
Signed-off-by: Maxime Ripard
---
drivers/rtc/rtc-sun6i.c | 12
1 file changed, 12 insertions(+), 0 deletions(-)
diff --git a/drivers/rtc/rtc-sun6i.c
Some registers have a read-modify-write access pattern that are not atomic.
Add some locking to prevent from concurrent accesses.
Signed-off-by: Maxime Ripard
---
drivers/rtc/rtc-sun6i.c | 20 ++--
1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/drivers/rtc/rtc
r) in the case where we're missing that phandle.
Signed-off-by: Maxime Ripard
---
Documentation/devicetree/bindings/rtc/sun6i-rtc.txt | 8 +-
drivers/rtc/rtc-sun6i.c | 140 -
2 files changed, 139 insertions(+), 9 deletions(-)
diff --git a/Doc
Hi,
On Mon, Jan 16, 2017 at 04:39:59PM +0100, Alexandre Belloni wrote:
> On 16/01/2017 at 16:21:48 +0100, Maxime Ripard wrote :
> > The RTC is clocked from either an internal, imprecise, oscillator or an
> > external one, which is usually much more accurate.
> >
> &g
external oscillator is reported to be mandatory in the
Allwinner datasheet, so we can just switch to it.
Cc: sta...@vger.kernel.org
Fixes: 9765d2d94309 ("rtc: sun6i: Add sun6i RTC driver")
Signed-off-by: Maxime Ripard
---
drivers/rtc/rtc-sun6i.c | 6 ++
1 file changed, 6 insertions(+)
Hi,
On Fri, Aug 19, 2016 at 03:42:22PM +0800, Chen-Yu Tsai wrote:
> Hi everyone,
>
> This was "mfd: ac100: Add support for X-Powers AC100 audio codec / RTC
> combo IC". The driver bits have all been merged.
Applied the DT patches. Thanks!
Maxime
--
Maxime Ripard, Free El
that an unresolved dependency when the driver has not
loaded yet, or is not even compiled ?
How is it working then?
Thanks,
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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; is absolutely no use in a 32KHz +- 20% oscillator, if a 32.768KHz crystal is
> available.
Yes, poking into the registers in drivers/clk would also work.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
--
You received this message because you
xed
> 32.768 KHz clk. So this patch actually makes things right.
On the condition that the driver gets loaded, which is not guaranteed.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
--
You received this message bec
'm guessing you could do a clock
driver that maps the registers, register its clock, and then when the
RTC probes just takes over what has been setup already by the clock
driver. This also means removing the ability for the RTC to be
compiled as a module.
Maxime
--
Maxime Ripard, Free Elect
On Wed, Jun 22, 2016 at 06:11:55PM +0800, Chen-Yu Tsai wrote:
> On Wed, Jun 22, 2016 at 6:02 PM, Maxime Ripard
> wrote:
> > Hi,
> >
> > On Mon, Jun 20, 2016 at 10:52:15AM +0800, Chen-Yu Tsai wrote:
> >> + /*
> >> + * The ADDA 4 MHz
mpossible to
> + * test this.
> + */
If that ADDA clock is exposed by the codec, why are you putting it in
the RTC?
Thanks,
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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On Wed, Jun 15, 2016 at 06:27:45PM +0800, Chen-Yu Tsai wrote:
> Move the &pio node below the mmc nodes for proper ordering by name.
>
> Signed-off-by: Chen-Yu Tsai
Applied, thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineerin
On Wed, Jun 15, 2016 at 06:27:46PM +0800, Chen-Yu Tsai wrote:
> Move the mmc nodes above the ohci nodes for proper ordering by name.
>
> Signed-off-by: Chen-Yu Tsai
Applied, thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
ht
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