| Message ID | 20180618141239.10892-2-codrin.ciubotariu@microchip.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Jun 18, 2018 at 05:12:35PM +0300, Codrin Ciubotariu wrote: > The I2S mux clock can be used to select the I2S input clock. The > available parents are the peripheral and the generated clocks. > > Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> > --- > > Changes in v5: > - specified clock's parent; > - added a newline before adding the clock's compatible string; > > .../devicetree/bindings/clock/at91-clock.txt | 35 +++++++++++++++++++ > 1 file changed, 35 insertions(+) Well, since Alexandre promises all this is going to get re-worked soon: Acked-by: Rob Herring <robh@kernel.org>
On 20/06/2018 09:47:59-0600, Rob Herring wrote: > On Mon, Jun 18, 2018 at 05:12:35PM +0300, Codrin Ciubotariu wrote: > > The I2S mux clock can be used to select the I2S input clock. The > > available parents are the peripheral and the generated clocks. > > > > Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> > > --- > > > > Changes in v5: > > - specified clock's parent; > > - added a newline before adding the clock's compatible string; > > > > .../devicetree/bindings/clock/at91-clock.txt | 35 +++++++++++++++++++ > > 1 file changed, 35 insertions(+) > > Well, since Alexandre promises all this is going to get re-worked soon: > > Acked-by: Rob Herring <robh@kernel.org> Thanks, I'm planning to send a first version next week, it will be based on top of that series.
Quoting Codrin Ciubotariu (2018-06-18 07:12:35) > The I2S mux clock can be used to select the I2S input clock. The > available parents are the peripheral and the generated clocks. > > Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> > --- Applied to clk-next
diff --git a/Documentation/devicetree/bindings/clock/at91-clock.txt b/Documentation/devicetree/bindings/clock/at91-clock.txt index 51c259a92d02..d0adbf5ae144 100644 --- a/Documentation/devicetree/bindings/clock/at91-clock.txt +++ b/Documentation/devicetree/bindings/clock/at91-clock.txt @@ -91,6 +91,9 @@ Required properties: at91 audio pll output on AUDIOPLLCLK that feeds the PMC and can be used by peripheral clock or generic clock + "atmel,sama5d2-clk-i2s-mux" (under pmc node): + at91 I2S clock source selection + Required properties for SCKC node: - reg : defines the IO memory reserved for the SCKC. - #size-cells : shall be 0 (reg is used to encode clk id). @@ -507,3 +510,35 @@ For example: atmel,clk-output-range = <0 83000000>; }; }; + +Required properties for I2S mux clocks: +- #size-cells : shall be 0 (reg is used to encode I2S bus id). +- #address-cells : shall be 1 (reg is used to encode I2S bus id). +- name: device tree node describing a specific mux clock. + * #clock-cells : from common clock binding; shall be set to 0. + * clocks : shall be the mux clock parent phandles; shall be 2 phandles: + peripheral and generated clock; the first phandle shall belong to the + peripheral clock and the second one shall belong to the generated + clock; "clock-indices" property can be user to specify + the correct order. + * reg: I2S bus id of the corresponding mux clock. + e.g. reg = <0>; for i2s0, reg = <1>; for i2s1 + +For example: + i2s_clkmux { + compatible = "atmel,sama5d2-clk-i2s-mux"; + #address-cells = <1>; + #size-cells = <0>; + + i2s0muxck: i2s0_muxclk { + clocks = <&i2s0_clk>, <&i2s0_gclk>; + #clock-cells = <0>; + reg = <0>; + }; + + i2s1muxck: i2s1_muxclk { + clocks = <&i2s1_clk>, <&i2s1_gclk>; + #clock-cells = <0>; + reg = <1>; + }; + };
The I2S mux clock can be used to select the I2S input clock. The available parents are the peripheral and the generated clocks. Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> --- Changes in v5: - specified clock's parent; - added a newline before adding the clock's compatible string; .../devicetree/bindings/clock/at91-clock.txt | 35 +++++++++++++++++++ 1 file changed, 35 insertions(+)