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-mt6765-cam.c (1869B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * Copyright (c) 2018 MediaTek Inc.
      4 * Author: Owen Chen <owen.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/mt6765-clk.h>
     14
     15static const struct mtk_gate_regs cam_cg_regs = {
     16	.set_ofs = 0x4,
     17	.clr_ofs = 0x8,
     18	.sta_ofs = 0x0,
     19};
     20
     21#define GATE_CAM(_id, _name, _parent, _shift) {		\
     22		.id = _id,				\
     23		.name = _name,				\
     24		.parent_name = _parent,			\
     25		.regs = &cam_cg_regs,			\
     26		.shift = _shift,			\
     27		.ops = &mtk_clk_gate_ops_setclr,	\
     28	}
     29
     30static const struct mtk_gate cam_clks[] = {
     31	GATE_CAM(CLK_CAM_LARB3, "cam_larb3", "mm_ck", 0),
     32	GATE_CAM(CLK_CAM_DFP_VAD, "cam_dfp_vad", "mm_ck", 1),
     33	GATE_CAM(CLK_CAM, "cam", "mm_ck", 6),
     34	GATE_CAM(CLK_CAMTG, "camtg", "mm_ck", 7),
     35	GATE_CAM(CLK_CAM_SENINF, "cam_seninf", "mm_ck", 8),
     36	GATE_CAM(CLK_CAMSV0, "camsv0", "mm_ck", 9),
     37	GATE_CAM(CLK_CAMSV1, "camsv1", "mm_ck", 10),
     38	GATE_CAM(CLK_CAMSV2, "camsv2", "mm_ck", 11),
     39	GATE_CAM(CLK_CAM_CCU, "cam_ccu", "mm_ck", 12),
     40};
     41
     42static int clk_mt6765_cam_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_CAM_NR_CLK);
     49
     50	mtk_clk_register_gates(node, cam_clks, ARRAY_SIZE(cam_clks), clk_data);
     51
     52	r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
     53
     54	if (r)
     55		pr_err("%s(): could not register clock provider: %d\n",
     56		       __func__, r);
     57
     58	return r;
     59}
     60
     61static const struct of_device_id of_match_clk_mt6765_cam[] = {
     62	{ .compatible = "mediatek,mt6765-camsys", },
     63	{}
     64};
     65
     66static struct platform_driver clk_mt6765_cam_drv = {
     67	.probe = clk_mt6765_cam_probe,
     68	.driver = {
     69		.name = "clk-mt6765-cam",
     70		.of_match_table = of_match_clk_mt6765_cam,
     71	},
     72};
     73
     74builtin_platform_driver(clk_mt6765_cam_drv);