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| author | Robert Hancock <robert.hancock@calian.com> | 2021-03-25 22:26:35 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2021-06-28 05:58:14 +0300 |
| commit | c832bb98d3706f843a207fff44ddf8a6422289a1 (patch) | |
| tree | f9a0ca46345c73a1f7256cc06c586ee0bff25b81 /Documentation | |
| parent | 6efb943b8616ec53a5e444193dccf1af9ad627b5 (diff) | |
| download | linux-c832bb98d3706f843a207fff44ddf8a6422289a1.tar.xz | |
dt-bindings: clock: clk-si5341: Add new attributes
Add new silabs,xaxb-ext-clk and silabs,iovdd-33 properties.
Changed vdd-supply on top-level node to optional since it is not actually
used by the driver.
Removed vdd-supply from output sub-nodes, as it was not supported by the
driver and it is not easily possible to support this in that location with
the kernel regulator infrastructure. Changed to have vddoX-supply
attributes for each output on the top-level device node.
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Link: https://lore.kernel.org/r/20210325192643.2190069-2-robert.hancock@calian.com
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/clock/silabs,si5341.txt | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/clock/silabs,si5341.txt b/Documentation/devicetree/bindings/clock/silabs,si5341.txt index 504cce3abe46..ce55aba0ce22 100644 --- a/Documentation/devicetree/bindings/clock/silabs,si5341.txt +++ b/Documentation/devicetree/bindings/clock/silabs,si5341.txt @@ -24,9 +24,8 @@ it. The device type, speed grade and revision are determined runtime by probing. -The driver currently only supports XTAL input mode, and does not support any -fancy input configurations. They can still be programmed into the chip and -the driver will leave them "as is". +The driver currently does not support any fancy input configurations. They can +still be programmed into the chip and the driver will leave them "as is". ==I2C device node== @@ -45,9 +44,9 @@ Required properties: corresponding to inputs. Use a fixed clock for the "xtal" input. At least one must be present. - clock-names: One of: "xtal", "in0", "in1", "in2" -- vdd-supply: Regulator node for VDD Optional properties: +- vdd-supply: Regulator node for VDD - vdda-supply: Regulator node for VDDA - vdds-supply: Regulator node for VDDS - silabs,pll-m-num, silabs,pll-m-den: Numerator and denominator for PLL @@ -60,7 +59,14 @@ Optional properties: be initialized, and always performs the soft-reset routine. Since this will temporarily stop all output clocks, don't do this if the chip is generating the CPU clock for example. +- silabs,xaxb-ext-clk: When present, indicates that the XA/XB pins are used + in EXTCLK (external reference clock) rather than XTAL (crystal) mode. - interrupts: Interrupt for INTRb pin. +- silabs,iovdd-33: When present, indicates that the I2C lines are using 3.3V + rather than 1.8V thresholds. +- vddoX-supply (where X is an output index): Regulator node for VDDO for the + specified output. The driver selects the output VDD_SEL setting based on this + voltage. - #address-cells: shall be set to 1. - #size-cells: shall be set to 0. @@ -77,8 +83,6 @@ Required child node properties: - reg: number of clock output. Optional child node properties: -- vdd-supply: Regulator node for VDD for this output. The driver selects default - values for common-mode and amplitude based on the voltage. - silabs,format: Output format, one of: 1 = differential (defaults to LVDS levels) 2 = low-power (defaults to HCSL levels) |