[PATCH v3 0/4] Add PWM clock support for bcm2835
Michael Turquette
mturquette at baylibre.com
Thu Dec 24 21:06:08 PST 2015
On 12/23, Remi Pommarel wrote:
> On Sun, Dec 06, 2015 at 05:22:45PM +0100, Remi Pommarel wrote:
> > Hi,
> >
> > This patchset adds support for pwm clock. At boot, this clock does not have a
> > default parent nor a default rate set. Thus we should be able to change its
> > parent to get this clock working. The current clock implementation is using a
> > mux to select the parent, but these clocks need to add a password (0x5a) in
> > higher register bits when changing parent. So a generic mux cannot be used
> > here.
> >
> > The two first patches fix the clock parent selection, while the last ones are
> > actually adding the pwm clock registration.
> >
> > Changes since v1:
> > - determine_rate now based its parent selection upon divided rate
> > instead of the parent one
> > - bcm2835_clock_choose_div has been modified to produce an avarage rate
> > lower or equal to the requested one
> > - devicetree modifications have removed to be send in another patch
> >
> > Changes since v2:
> > - Remove useless variable and include
> > - Make bcm2835_clock_choose_div() divisor round up ability optional
> > - Set rate in bcm2835_determine_rate()
> > - Add device tree modification in a separate patch
> >
> >
> > Remi Pommarel (4):
> > clk: bcm2835: add a round up ability to the clock divisor
> > clk: bcm2835: Support for clock parent selection
> > clk: bcm2835: Add PWM clock support
> > clk: bcm2835: Add PWM clock support to the device tree
> >
> > arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 +
> > arch/arm/boot/dts/bcm2835.dtsi | 9 +++
> > drivers/clk/bcm/clk-bcm2835.c | 155 +++++++++++++++++++++++-------------
> > include/dt-bindings/clock/bcm2835.h | 3 +-
> > 4 files changed, 116 insertions(+), 55 deletions(-)
> >
>
> Gently ping.
>
> Patches 0 to 3 are reviewed by Eric, and can eventually be pushed on clk
> tree.
Patches 1-3 applied to clk-next towards 4.5.
>
> Patch 4 has been sent on devicetree mailinglist for review
> (http://www.spinics.net/lists/devicetree/msg108070.html), waiting for
> previous patches to be pushed.
Sounds good.
Regards,
Mike
>
> Thanks
>
> --
> Remi
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