text: /*
   * Copyright (c) 2014 MediaTek Inc.
   * Author: Shunli Wang <shunli.wang@mediatek.com>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   */
  
  #include <linux/clk-provider.h>
  #include <linux/platform_device.h>
  
  #include "clk-mtk.h"
  #include "clk-gate.h"
  
  #include <dt-bindings/clock/mt2701-clk.h>
  
  static const struct mtk_gate_regs img_cg_regs = {
  	.set_ofs = 0x0004,
  	.clr_ofs = 0x0008,
  	.sta_ofs = 0x0000,
  };
  
  #define GATE_IMG(_id, _name, _parent, _shift) {		\
  		.id = _id,				\
  		.name = _name,				\
  		.parent_name = _parent,			\
  		.regs = &img_cg_regs,			\
  		.shift = _shift,			\
  		.ops = &mtk_clk_gate_ops_setclr,	\
  	}
  
  static const struct mtk_gate img_clks[] = {
  	GATE_IMG(CLK_IMG_SMI_COMM, "img_smi_comm", "mm_sel", 0),
  	GATE_IMG(CLK_IMG_RESZ, "img_resz", "mm_sel", 1),
  	GATE_IMG(CLK_IMG_JPGDEC_SMI, "img_jpgdec_smi", "mm_sel", 5),
  	GATE_IMG(CLK_IMG_JPGDEC, "img_jpgdec", "mm_sel", 6),
  	GATE_IMG(CLK_IMG_VENC_LT, "img_venc_lt", "mm_sel", 8),
  	GATE_IMG(CLK_IMG_VENC, "img_venc", "mm_sel", 9),
  };
  
  static const struct of_device_id of_match_clk_mt2701_img[] = {
  	{ .compatible = "mediatek,mt2701-imgsys", },
  	{}
  };
  
  static int clk_mt2701_img_probe(struct platform_device *pdev)
  {
  	struct clk_onecell_data *clk_data;
  	int r;
  	struct device_node *node = pdev->dev.of_node;
  
  	clk_data = mtk_alloc_clk_data(CLK_IMG_NR);
  
  	mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
  						clk_data);
  
  	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  	if (r)
  		dev_err(&pdev->dev,
  			"could not register clock provider: %s: %d\n",
  			pdev->name, r);
  
  	return r;
  }
  
  static struct platform_driver clk_mt2701_img_drv = {
  	.probe = clk_mt2701_img_probe,
  	.driver = {
  		.name = "clk-mt2701-img",
  		.of_match_table = of_match_clk_mt2701_img,
  	},
  };
  
  builtin_platform_driver(clk_mt2701_img_drv);
  