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linux/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml
Dmitry Baryshkov b0ef3434da dt-bindings: clock: qcom,gcc: sort out power-domains support
On some of Qualcomm platforms the Global Clock Controller (GCC) doesn't
provide power domains. Move requirement for the '#power-domain-cells'
out of the common qcom,gcc.yaml into individual schema files. For the
platforms that do not provide power-domains, explicitly forbid having
the '#power-domain-cells' property.

Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240529-qcom-gdscs-v2-2-69c63d0ae1e7@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2024-05-31 18:07:30 -05:00

123 lines
4.1 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/qcom,gcc-sc8280xp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Global Clock & Reset Controller on SC8280xp
maintainers:
- Bjorn Andersson <bjorn.andersson@linaro.org>
description: |
Qualcomm global clock control module provides the clocks, resets and
power domains on SC8280xp.
See also:: include/dt-bindings/clock/qcom,gcc-sc8280xp.h
properties:
compatible:
const: qcom,gcc-sc8280xp
clocks:
items:
- description: XO reference clock
- description: Sleep clock
- description: UFS memory first RX symbol clock
- description: UFS memory second RX symbol clock
- description: UFS memory first TX symbol clock
- description: UFS card first RX symbol clock
- description: UFS card second RX symbol clock
- description: UFS card first TX symbol clock
- description: Primary USB SuperSpeed pipe clock
- description: USB4 PHY pipegmux clock source
- description: USB4 PHY DP gmux clock source
- description: USB4 PHY sys pipegmux clock source
- description: USB4 PHY PCIe pipe clock
- description: USB4 PHY router max pipe clock
- description: Primary USB4 RX0 clock
- description: Primary USB4 RX1 clock
- description: Secondary USB SuperSpeed pipe clock
- description: Second USB4 PHY pipegmux clock source
- description: Second USB4 PHY DP gmux clock source
- description: Second USB4 PHY sys pipegmux clock source
- description: Second USB4 PHY PCIe pipe clock
- description: Second USB4 PHY router max pipe clock
- description: Secondary USB4 RX0 clock
- description: Secondary USB4 RX1 clock
- description: Multiport USB first SuperSpeed pipe clock
- description: Multiport USB second SuperSpeed pipe clock
- description: PCIe 2a pipe clock
- description: PCIe 2b pipe clock
- description: PCIe 3a pipe clock
- description: PCIe 3b pipe clock
- description: PCIe 4 pipe clock
- description: First EMAC controller reference clock
- description: Second EMAC controller reference clock
power-domains:
items:
- description: CX domain
protected-clocks:
maxItems: 389
required:
- compatible
- clocks
- '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
#include <dt-bindings/power/qcom-rpmpd.h>
clock-controller@100000 {
compatible = "qcom,gcc-sc8280xp";
reg = <0x00100000 0x1f0000>;
clocks = <&rpmhcc RPMH_CXO_CLK>,
<&sleep_clk>,
<&ufs_phy_rx_symbol_0_clk>,
<&ufs_phy_rx_symbol_1_clk>,
<&ufs_phy_tx_symbol_0_clk>,
<&ufs_card_rx_symbol_0_clk>,
<&ufs_card_rx_symbol_1_clk>,
<&ufs_card_tx_symbol_0_clk>,
<&usb_0_ssphy>,
<&gcc_usb4_phy_pipegmux_clk_src>,
<&gcc_usb4_phy_dp_gmux_clk_src>,
<&gcc_usb4_phy_sys_pipegmux_clk_src>,
<&usb4_phy_gcc_usb4_pcie_pipe_clk>,
<&usb4_phy_gcc_usb4rtr_max_pipe_clk>,
<&qusb4phy_gcc_usb4_rx0_clk>,
<&qusb4phy_gcc_usb4_rx1_clk>,
<&usb_1_ssphy>,
<&gcc_usb4_1_phy_pipegmux_clk_src>,
<&gcc_usb4_1_phy_dp_gmux_clk_src>,
<&gcc_usb4_1_phy_sys_pipegmux_clk_src>,
<&usb4_1_phy_gcc_usb4_pcie_pipe_clk>,
<&usb4_1_phy_gcc_usb4rtr_max_pipe_clk>,
<&qusb4phy_1_gcc_usb4_rx0_clk>,
<&qusb4phy_1_gcc_usb4_rx1_clk>,
<&usb_2_ssphy>,
<&usb_3_ssphy>,
<&pcie2a_lane>,
<&pcie2b_lane>,
<&pcie3a_lane>,
<&pcie3b_lane>,
<&pcie4_lane>,
<&rxc0_ref_clk>,
<&rxc1_ref_clk>;
power-domains = <&rpmhpd SC8280XP_CX>;
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
};
...