dt-bindings: clock: Add SM8450 GCC clock bindings

Add device tree bindings for global clock controller on SM8450 SoCs.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211207114003.100693-2-vkoul@kernel.org

1 files changed, 85 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
new file mode 100644
index 000000000000..58d98a766de6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-sm8450.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller Binding for SM8450
+
+maintainers:
+  - Vinod Koul <vkoul@kernel.org>
+
+description: |
+  Qualcomm global clock control module which supports the clocks, resets and
+  power domains on SM8450
+
+  See also:
+  - dt-bindings/clock/qcom,gcc-sm8450.h
+
+properties:
+  compatible:
+    const: qcom,gcc-sm8450
+
+  clocks:
+    items:
+      - description: Board XO source
+      - description: Sleep clock source
+      - description: PCIE 0 Pipe clock source (Optional clock)
+      - description: PCIE 1 Pipe clock source (Optional clock)
+      - description: PCIE 1 Phy Auxillary clock source (Optional clock)
+      - description: UFS Phy Rx symbol 0 clock source (Optional clock)
+      - description: UFS Phy Rx symbol 1 clock source (Optional clock)
+      - description: UFS Phy Tx symbol 0 clock source (Optional clock)
+      - description: USB3 Phy wrapper pipe clock source (Optional clock)
+    minItems: 2
+
+  clock-names:
+    items:
+      - const: bi_tcxo
+      - const: sleep_clk
+      - const: pcie_0_pipe_clk # Optional clock
+      - const: pcie_1_pipe_clk # Optional clock
+      - const: pcie_1_phy_aux_clk # Optional clock
+      - const: ufs_phy_rx_symbol_0_clk # Optional clock
+      - const: ufs_phy_rx_symbol_1_clk # Optional clock
+      - const: ufs_phy_tx_symbol_0_clk # Optional clock
+      - const: usb3_phy_wrapper_gcc_usb30_pipe_clk # Optional clock
+    minItems: 2
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+  '#power-domain-cells':
+    const: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+  - '#reset-cells'
+  - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    clock-controller@100000 {
+      compatible = "qcom,gcc-sm8450";
+      reg = <0x00100000 0x001f4200>;
+      clocks = <&rpmhcc RPMH_CXO_CLK>, <&sleep_clk>;
+      clock-names = "bi_tcxo", "sleep_clk";
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+      #power-domain-cells = <1>;
+    };
+
+...