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 devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
