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-mt6779-vdec.c (1763B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * Copyright (c) 2019 MediaTek Inc.
      4 * Author: Wendell Lin <wendell.lin@mediatek.com>
      5 */
      6
      7#include <linux/module.h>
      8#include <linux/clk-provider.h>
      9#include <linux/platform_device.h>
     10
     11#include "clk-mtk.h"
     12#include "clk-gate.h"
     13
     14#include <dt-bindings/clock/mt6779-clk.h>
     15
     16static const struct mtk_gate_regs vdec0_cg_regs = {
     17	.set_ofs = 0x0000,
     18	.clr_ofs = 0x0004,
     19	.sta_ofs = 0x0000,
     20};
     21
     22static const struct mtk_gate_regs vdec1_cg_regs = {
     23	.set_ofs = 0x0008,
     24	.clr_ofs = 0x000c,
     25	.sta_ofs = 0x0008,
     26};
     27
     28#define GATE_VDEC0_I(_id, _name, _parent, _shift)		\
     29	GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift,	\
     30		&mtk_clk_gate_ops_setclr_inv)
     31#define GATE_VDEC1_I(_id, _name, _parent, _shift)		\
     32	GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift,	\
     33		&mtk_clk_gate_ops_setclr_inv)
     34
     35static const struct mtk_gate vdec_clks[] = {
     36	/* VDEC0 */
     37	GATE_VDEC0_I(CLK_VDEC_VDEC, "vdec_cken", "vdec_sel", 0),
     38	/* VDEC1 */
     39	GATE_VDEC1_I(CLK_VDEC_LARB1, "vdec_larb1_cken", "vdec_sel", 0),
     40};
     41
     42static const struct of_device_id of_match_clk_mt6779_vdec[] = {
     43	{ .compatible = "mediatek,mt6779-vdecsys", },
     44	{}
     45};
     46
     47static int clk_mt6779_vdec_probe(struct platform_device *pdev)
     48{
     49	struct clk_hw_onecell_data *clk_data;
     50	struct device_node *node = pdev->dev.of_node;
     51
     52	clk_data = mtk_alloc_clk_data(CLK_VDEC_GCON_NR_CLK);
     53
     54	mtk_clk_register_gates(node, vdec_clks, ARRAY_SIZE(vdec_clks),
     55			       clk_data);
     56
     57	return of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
     58}
     59
     60static struct platform_driver clk_mt6779_vdec_drv = {
     61	.probe = clk_mt6779_vdec_probe,
     62	.driver = {
     63		.name = "clk-mt6779-vdec",
     64		.of_match_table = of_match_clk_mt6779_vdec,
     65	},
     66};
     67
     68module_platform_driver(clk_mt6779_vdec_drv);
     69MODULE_LICENSE("GPL");