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-mt2701-img.c (1802B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Copyright (c) 2014 MediaTek Inc.
      4 * Author: Shunli Wang <shunli.wang@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/mt2701-clk.h>
     14
     15static const struct mtk_gate_regs img_cg_regs = {
     16	.set_ofs = 0x0004,
     17	.clr_ofs = 0x0008,
     18	.sta_ofs = 0x0000,
     19};
     20
     21#define GATE_IMG(_id, _name, _parent, _shift) {		\
     22		.id = _id,				\
     23		.name = _name,				\
     24		.parent_name = _parent,			\
     25		.regs = &img_cg_regs,			\
     26		.shift = _shift,			\
     27		.ops = &mtk_clk_gate_ops_setclr,	\
     28	}
     29
     30static const struct mtk_gate img_clks[] = {
     31	GATE_IMG(CLK_IMG_SMI_COMM, "img_smi_comm", "mm_sel", 0),
     32	GATE_IMG(CLK_IMG_RESZ, "img_resz", "mm_sel", 1),
     33	GATE_IMG(CLK_IMG_JPGDEC_SMI, "img_jpgdec_smi", "mm_sel", 5),
     34	GATE_IMG(CLK_IMG_JPGDEC, "img_jpgdec", "mm_sel", 6),
     35	GATE_IMG(CLK_IMG_VENC_LT, "img_venc_lt", "mm_sel", 8),
     36	GATE_IMG(CLK_IMG_VENC, "img_venc", "mm_sel", 9),
     37};
     38
     39static const struct of_device_id of_match_clk_mt2701_img[] = {
     40	{ .compatible = "mediatek,mt2701-imgsys", },
     41	{}
     42};
     43
     44static int clk_mt2701_img_probe(struct platform_device *pdev)
     45{
     46	struct clk_hw_onecell_data *clk_data;
     47	int r;
     48	struct device_node *node = pdev->dev.of_node;
     49
     50	clk_data = mtk_alloc_clk_data(CLK_IMG_NR);
     51
     52	mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
     53						clk_data);
     54
     55	r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
     56	if (r)
     57		dev_err(&pdev->dev,
     58			"could not register clock provider: %s: %d\n",
     59			pdev->name, r);
     60
     61	return r;
     62}
     63
     64static struct platform_driver clk_mt2701_img_drv = {
     65	.probe = clk_mt2701_img_probe,
     66	.driver = {
     67		.name = "clk-mt2701-img",
     68		.of_match_table = of_match_clk_mt2701_img,
     69	},
     70};
     71
     72builtin_platform_driver(clk_mt2701_img_drv);