cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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clk-mt6797-venc.c (1690B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Copyright (c) 2017 MediaTek Inc.
      4 * Author: Kevin Chen <kevin-cw.chen@mediatek.com>
      5 */
      6
      7#include <linux/clk-provider.h>
      8#include <linux/platform_device.h>
      9
     10#include "clk-mtk.h"
     11#include "clk-gate.h"
     12
     13#include <dt-bindings/clock/mt6797-clk.h>
     14
     15static const struct mtk_gate_regs venc_cg_regs = {
     16	.set_ofs = 0x0004,
     17	.clr_ofs = 0x0008,
     18	.sta_ofs = 0x0000,
     19};
     20
     21#define GATE_VENC(_id, _name, _parent, _shift) {	\
     22		.id = _id,				\
     23		.name = _name,				\
     24		.parent_name = _parent,			\
     25		.regs = &venc_cg_regs,			\
     26		.shift = _shift,			\
     27		.ops = &mtk_clk_gate_ops_setclr_inv,	\
     28	}
     29
     30static const struct mtk_gate venc_clks[] = {
     31	GATE_VENC(CLK_VENC_0, "venc_0", "mm_sel", 0),
     32	GATE_VENC(CLK_VENC_1, "venc_1", "venc_sel", 4),
     33	GATE_VENC(CLK_VENC_2, "venc_2", "venc_sel", 8),
     34	GATE_VENC(CLK_VENC_3, "venc_3", "venc_sel", 12),
     35};
     36
     37static const struct of_device_id of_match_clk_mt6797_venc[] = {
     38	{ .compatible = "mediatek,mt6797-vencsys", },
     39	{}
     40};
     41
     42static int clk_mt6797_venc_probe(struct platform_device *pdev)
     43{
     44	struct clk_hw_onecell_data *clk_data;
     45	int r;
     46	struct device_node *node = pdev->dev.of_node;
     47
     48	clk_data = mtk_alloc_clk_data(CLK_VENC_NR);
     49
     50	mtk_clk_register_gates(node, venc_clks, ARRAY_SIZE(venc_clks),
     51			       clk_data);
     52
     53	r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
     54	if (r)
     55		dev_err(&pdev->dev,
     56			"could not register clock provider: %s: %d\n",
     57			pdev->name, r);
     58
     59	return r;
     60}
     61
     62static struct platform_driver clk_mt6797_venc_drv = {
     63	.probe = clk_mt6797_venc_probe,
     64	.driver = {
     65		.name = "clk-mt6797-venc",
     66		.of_match_table = of_match_clk_mt6797_venc,
     67	},
     68};
     69
     70builtin_platform_driver(clk_mt6797_venc_drv);