lkml.org 
[lkml]   [2014]   [Apr]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/3] clk: Add clock driver for DRA7 ATL (Audio Tracking Logic)
Hi Mike,

On 04/02/2014 04:55 PM, Peter Ujfalusi wrote:
> Hi,
>
> Audio Tracking Logic is designed to be used by HD Radio
> applications to synchronize the audio output clocks to the
> baseband clock. ATL can be also used to track errors between
> two reference clocks (BWS, AWS) and generate a modulated
> clock output which averages to some desired frequency.
>
> To be able to integrate the ATL provided clocks to the clock tree we need
> two types of DT binding:
> - DT clock nodes to represent the ATL clocks towards the CCF
> - binding for the ATL IP itself which is going to handle the hw
> configuration
>
> The reason for this type of setup is that ATL itself is a separate device
> in the SoC, it has it's own address space and clock domain. Other IPs can
> use the ATL generated clock as their functional clock (McASPs for example)
> and external components like audio codecs can also use the very same clock
> as their MCLK.
>
> With setup pm_runtime can handle the ATL clock on demand of it's use and
> all the IP which needs ATL clock can be sure that it is enabled for them.
>
> The first patch fixes the name of atl clkin3 node in dtsi file.

Can you take a look at this series?

Thanks,
Péter

>
> Regards,
> Peter
> ---
> Peter Ujfalusi (3):
> ARM: dts: dra7xx-clocks: Correct name for atl clkin3 clock
> clk: Driver for DRA7 ATL (Audio Tracking Logic)
> ARM: DTS: dra7/dra7xx-clocks: ATL related changes
>
> .../devicetree/bindings/clock/ti/dra7-atl.txt | 97 +++++++
> arch/arm/boot/dts/dra7.dtsi | 11 +
> arch/arm/boot/dts/dra7xx-clocks.dtsi | 38 +--
> drivers/clk/ti/Makefile | 3 +-
> drivers/clk/ti/clk-7xx.c | 2 +-
> drivers/clk/ti/clk-dra7-atl.c | 313 +++++++++++++++++++++
> include/dt-bindings/clk/ti-dra7-atl.h | 40 +++
> 7 files changed, 483 insertions(+), 21 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
> create mode 100644 drivers/clk/ti/clk-dra7-atl.c
> create mode 100644 include/dt-bindings/clk/ti-dra7-atl.h
>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2014-04-24 15:01    [W:0.063 / U:2.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site