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-mt8183-img.c (1762B)

      1// SPDX-License-Identifier: GPL-2.0
      2//
      3// Copyright (c) 2018 MediaTek Inc.
      4// Author: Weiyi Lu <weiyi.lu@mediatek.com>
      5
      6#include <linux/clk-provider.h>
      7#include <linux/platform_device.h>
      8
      9#include "clk-mtk.h"
     10#include "clk-gate.h"
     11
     12#include <dt-bindings/clock/mt8183-clk.h>
     13
     14static const struct mtk_gate_regs img_cg_regs = {
     15	.set_ofs = 0x4,
     16	.clr_ofs = 0x8,
     17	.sta_ofs = 0x0,
     18};
     19
     20#define GATE_IMG(_id, _name, _parent, _shift)			\
     21	GATE_MTK(_id, _name, _parent, &img_cg_regs, _shift,	\
     22		&mtk_clk_gate_ops_setclr)
     23
     24static const struct mtk_gate img_clks[] = {
     25	GATE_IMG(CLK_IMG_LARB5, "img_larb5", "img_sel", 0),
     26	GATE_IMG(CLK_IMG_LARB2, "img_larb2", "img_sel", 1),
     27	GATE_IMG(CLK_IMG_DIP, "img_dip", "img_sel", 2),
     28	GATE_IMG(CLK_IMG_FDVT, "img_fdvt", "img_sel", 3),
     29	GATE_IMG(CLK_IMG_DPE, "img_dpe", "img_sel", 4),
     30	GATE_IMG(CLK_IMG_RSC, "img_rsc", "img_sel", 5),
     31	GATE_IMG(CLK_IMG_MFB, "img_mfb", "img_sel", 6),
     32	GATE_IMG(CLK_IMG_WPE_A, "img_wpe_a", "img_sel", 7),
     33	GATE_IMG(CLK_IMG_WPE_B, "img_wpe_b", "img_sel", 8),
     34	GATE_IMG(CLK_IMG_OWE, "img_owe", "img_sel", 9),
     35};
     36
     37static int clk_mt8183_img_probe(struct platform_device *pdev)
     38{
     39	struct clk_hw_onecell_data *clk_data;
     40	struct device_node *node = pdev->dev.of_node;
     41
     42	clk_data = mtk_alloc_clk_data(CLK_IMG_NR_CLK);
     43
     44	mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
     45			clk_data);
     46
     47	return of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
     48}
     49
     50static const struct of_device_id of_match_clk_mt8183_img[] = {
     51	{ .compatible = "mediatek,mt8183-imgsys", },
     52	{}
     53};
     54
     55static struct platform_driver clk_mt8183_img_drv = {
     56	.probe = clk_mt8183_img_probe,
     57	.driver = {
     58		.name = "clk-mt8183-img",
     59		.of_match_table = of_match_clk_mt8183_img,
     60	},
     61};
     62
     63builtin_platform_driver(clk_mt8183_img_drv);