| Message ID | 20220203021736.13434-3-samuel@sholland.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | clk: sunxi-ng: Add a RTC CCU driver | expand |
On Wed, Feb 02, 2022 at 08:17:32PM -0600, Samuel Holland wrote: > These new RTC variants all have a single alarm, like the R40 variant. > > For the new SoCs, start requiring a complete list of input clocks. The > H616 has three required clocks. The R329 also has three required clocks > (but one is different), plus an optional crystal oscillator input. The > D1 RTC is identical to the one in the R329. > > And since these new SoCs will have a well-defined output clock order as > well, they do not need the clock-output-names property. > > Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Maxime Ripard <maxime@cerno.tech> Maxime
On Wed, 02 Feb 2022 20:17:32 -0600, Samuel Holland wrote: > These new RTC variants all have a single alarm, like the R40 variant. > > For the new SoCs, start requiring a complete list of input clocks. The > H616 has three required clocks. The R329 also has three required clocks > (but one is different), plus an optional crystal oscillator input. The > D1 RTC is identical to the one in the R329. > > And since these new SoCs will have a well-defined output clock order as > well, they do not need the clock-output-names property. > > Signed-off-by: Samuel Holland <samuel@sholland.org> > --- > > Changes in v3: > - Add/fix several maxItems attributes for clocks and clock-items > > Changes in v2: > - Properly update the DT binding clocks and clock-names properties. > > .../bindings/rtc/allwinner,sun6i-a31-rtc.yaml | 76 ++++++++++++++++++- > include/dt-bindings/clock/sun6i-rtc.h | 10 +++ > 2 files changed, 83 insertions(+), 3 deletions(-) > create mode 100644 include/dt-bindings/clock/sun6i-rtc.h > Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml b/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml index a88d46ffb457..0b767fec39d8 100644 --- a/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml +++ b/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml @@ -24,9 +24,14 @@ properties: - allwinner,sun8i-v3-rtc - allwinner,sun50i-h5-rtc - allwinner,sun50i-h6-rtc + - allwinner,sun50i-h616-rtc + - allwinner,sun50i-r329-rtc - items: - const: allwinner,sun50i-a64-rtc - const: allwinner,sun8i-h3-rtc + - items: + - const: allwinner,sun20i-d1-rtc + - const: allwinner,sun50i-r329-rtc reg: maxItems: 1 @@ -38,7 +43,12 @@ properties: - description: RTC Alarm 1 clocks: - maxItems: 1 + minItems: 1 + maxItems: 4 + + clock-names: + minItems: 1 + maxItems: 4 clock-output-names: minItems: 1 @@ -98,7 +108,68 @@ allOf: properties: compatible: contains: - const: allwinner,sun8i-r40-rtc + const: allwinner,sun50i-h616-rtc + + then: + properties: + clocks: + minItems: 3 + maxItems: 3 + items: + - description: Bus clock for register access + - description: 24 MHz oscillator + - description: 32 kHz clock from the CCU + + clock-names: + minItems: 3 + maxItems: 3 + items: + - const: bus + - const: hosc + - const: pll-32k + + required: + - clocks + - clock-names + + - if: + properties: + compatible: + contains: + const: allwinner,sun50i-r329-rtc + + then: + properties: + clocks: + minItems: 3 + maxItems: 4 + items: + - description: Bus clock for register access + - description: 24 MHz oscillator + - description: AHB parent for internal SPI clock + - description: External 32768 Hz oscillator + + clock-names: + minItems: 3 + maxItems: 4 + items: + - const: bus + - const: hosc + - const: ahb + - const: ext-osc32k + + required: + - clocks + - clock-names + + - if: + properties: + compatible: + contains: + enum: + - allwinner,sun8i-r40-rtc + - allwinner,sun50i-h616-rtc + - allwinner,sun50i-r329-rtc then: properties: @@ -117,7 +188,6 @@ required: - compatible - reg - interrupts - - clock-output-names additionalProperties: false diff --git a/include/dt-bindings/clock/sun6i-rtc.h b/include/dt-bindings/clock/sun6i-rtc.h new file mode 100644 index 000000000000..c845493e4d37 --- /dev/null +++ b/include/dt-bindings/clock/sun6i-rtc.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */ + +#ifndef _DT_BINDINGS_CLK_SUN6I_RTC_H_ +#define _DT_BINDINGS_CLK_SUN6I_RTC_H_ + +#define CLK_OSC32K 0 +#define CLK_OSC32K_FANOUT 1 +#define CLK_IOSC 2 + +#endif /* _DT_BINDINGS_CLK_SUN6I_RTC_H_ */
These new RTC variants all have a single alarm, like the R40 variant. For the new SoCs, start requiring a complete list of input clocks. The H616 has three required clocks. The R329 also has three required clocks (but one is different), plus an optional crystal oscillator input. The D1 RTC is identical to the one in the R329. And since these new SoCs will have a well-defined output clock order as well, they do not need the clock-output-names property. Signed-off-by: Samuel Holland <samuel@sholland.org> --- Changes in v3: - Add/fix several maxItems attributes for clocks and clock-items Changes in v2: - Properly update the DT binding clocks and clock-names properties. .../bindings/rtc/allwinner,sun6i-a31-rtc.yaml | 76 ++++++++++++++++++- include/dt-bindings/clock/sun6i-rtc.h | 10 +++ 2 files changed, 83 insertions(+), 3 deletions(-) create mode 100644 include/dt-bindings/clock/sun6i-rtc.h