dt-bindings: clock: Add Qualcomm SC8280XP GCC bindings

Add binding for the Qualcomm SC8280XP Global Clock controller.

The clock-names property is purposefully omitted, to clearly communicate
to the writer (and reader) of the DeviceTree source based on this
binding that the order of "clocks" is significant, in contrast to
previous GCC bindings.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220505025457.1693716-2-bjorn.andersson@linaro.org

1 files changed, 128 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml
new file mode 100644
index 000000000000..0bcdc69c6f89
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml
@@ -0,0 +1,128 @@
+# 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 Binding for SC8280xp
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description: |
+  Qualcomm global clock control module which supports 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 piegmux 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 SupserSpeed 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
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+  '#power-domain-cells':
+    const: 1
+
+  reg:
+    maxItems: 1
+
+  protected-clocks:
+    maxItems: 389
+
+required:
+  - compatible
+  - clocks
+  - reg
+  - '#clock-cells'
+  - '#reset-cells'
+  - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,rpmh.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>;
+
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+      #power-domain-cells = <1>;
+    };
+...