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dt-bindings: clock: Introduce QCOM Graphics clock bindings

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Add device tree bindings for graphics clock controller for
Qualcomm Technology Inc's SDM845 SoCs.

Signed-off-by: Amit Nischal <anischal@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
[sboyd@kernel.org: Add input clocks property]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Amit Nischal 2018-11-25 10:06:07 +05:30 committed by Stephen Boyd
parent 651022382c
commit e431c92188
2 changed files with 46 additions and 0 deletions
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22
Documentation/devicetree/bindings/clock/qcom,gpucc.txt Normal file
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Qualcomm Graphics Clock & Reset Controller Binding
--------------------------------------------------
Required properties :
- compatible : shall contain "qcom,sdm845-gpucc"
- reg : shall contain base register location and length
- #clock-cells : from common clock binding, shall contain 1
- #reset-cells : from common reset binding, shall contain 1
- #power-domain-cells : from generic power domain binding, shall contain 1
- clocks : shall contain the XO clock
- clock-names : shall be "xo"
Example:
gpucc: clock-controller@5090000 {
compatible = "qcom,sdm845-gpucc";
reg = <0x5090000 0x9000>;
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
clocks = <&xo_board>;
clock-names = "xo";
};

24
include/dt-bindings/clock/qcom,gpucc-sdm845.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
*/
#ifndef _DT_BINDINGS_CLK_SDM_GPU_CC_SDM845_H
#define _DT_BINDINGS_CLK_SDM_GPU_CC_SDM845_H
/* GPU_CC clock registers */
#define GPU_CC_CX_GMU_CLK 0
#define GPU_CC_CXO_CLK 1
#define GPU_CC_GMU_CLK_SRC 2
#define GPU_CC_PLL1 3
/* GPU_CC Resets */
#define GPUCC_GPU_CC_CX_BCR 0
#define GPUCC_GPU_CC_GMU_BCR 1
#define GPUCC_GPU_CC_XO_BCR 2
/* GPU_CC GDSCRs */
#define GPU_CX_GDSC 0
#define GPU_GX_GDSC 1
#endif