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-mt2712-img.c (1818B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Copyright (c) 2017 MediaTek Inc.
      4 * Author: Weiyi Lu <weiyi.lu@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/mt2712-clk.h>
     14
     15static const struct mtk_gate_regs img_cg_regs = {
     16	.set_ofs = 0x0,
     17	.clr_ofs = 0x0,
     18	.sta_ofs = 0x0,
     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_no_setclr,	\
     28	}
     29
     30static const struct mtk_gate img_clks[] = {
     31	GATE_IMG(CLK_IMG_SMI_LARB2, "img_smi_larb2", "mm_sel", 0),
     32	GATE_IMG(CLK_IMG_SENINF_SCAM_EN, "img_scam_en", "csi0", 3),
     33	GATE_IMG(CLK_IMG_SENINF_CAM_EN, "img_cam_en", "mm_sel", 8),
     34	GATE_IMG(CLK_IMG_CAM_SV_EN, "img_cam_sv_en", "mm_sel", 9),
     35	GATE_IMG(CLK_IMG_CAM_SV1_EN, "img_cam_sv1_en", "mm_sel", 10),
     36	GATE_IMG(CLK_IMG_CAM_SV2_EN, "img_cam_sv2_en", "mm_sel", 11),
     37};
     38
     39static int clk_mt2712_img_probe(struct platform_device *pdev)
     40{
     41	struct clk_hw_onecell_data *clk_data;
     42	int r;
     43	struct device_node *node = pdev->dev.of_node;
     44
     45	clk_data = mtk_alloc_clk_data(CLK_IMG_NR_CLK);
     46
     47	mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
     48			clk_data);
     49
     50	r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
     51
     52	if (r != 0)
     53		pr_err("%s(): could not register clock provider: %d\n",
     54			__func__, r);
     55
     56	return r;
     57}
     58
     59static const struct of_device_id of_match_clk_mt2712_img[] = {
     60	{ .compatible = "mediatek,mt2712-imgsys", },
     61	{}
     62};
     63
     64static struct platform_driver clk_mt2712_img_drv = {
     65	.probe = clk_mt2712_img_probe,
     66	.driver = {
     67		.name = "clk-mt2712-img",
     68		.of_match_table = of_match_clk_mt2712_img,
     69	},
     70};
     71
     72builtin_platform_driver(clk_mt2712_img_drv);