clk-mt2701-img.c 1.8 KB

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  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. #include <linux/clk-provider.h>
  7. #include <linux/platform_device.h>
  8. #include "clk-mtk.h"
  9. #include "clk-gate.h"
  10. #include <dt-bindings/clock/mt2701-clk.h>
  11. static const struct mtk_gate_regs img_cg_regs = {
  12. .set_ofs = 0x0004,
  13. .clr_ofs = 0x0008,
  14. .sta_ofs = 0x0000,
  15. };
  16. #define GATE_IMG(_id, _name, _parent, _shift) { \
  17. .id = _id, \
  18. .name = _name, \
  19. .parent_name = _parent, \
  20. .regs = &img_cg_regs, \
  21. .shift = _shift, \
  22. .ops = &mtk_clk_gate_ops_setclr, \
  23. }
  24. static const struct mtk_gate img_clks[] = {
  25. GATE_IMG(CLK_IMG_SMI_COMM, "img_smi_comm", "mm_sel", 0),
  26. GATE_IMG(CLK_IMG_RESZ, "img_resz", "mm_sel", 1),
  27. GATE_IMG(CLK_IMG_JPGDEC_SMI, "img_jpgdec_smi", "mm_sel", 5),
  28. GATE_IMG(CLK_IMG_JPGDEC, "img_jpgdec", "mm_sel", 6),
  29. GATE_IMG(CLK_IMG_VENC_LT, "img_venc_lt", "mm_sel", 8),
  30. GATE_IMG(CLK_IMG_VENC, "img_venc", "mm_sel", 9),
  31. };
  32. static const struct of_device_id of_match_clk_mt2701_img[] = {
  33. { .compatible = "mediatek,mt2701-imgsys", },
  34. {}
  35. };
  36. static int clk_mt2701_img_probe(struct platform_device *pdev)
  37. {
  38. struct clk_onecell_data *clk_data;
  39. int r;
  40. struct device_node *node = pdev->dev.of_node;
  41. clk_data = mtk_alloc_clk_data(CLK_IMG_NR);
  42. mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
  43. clk_data);
  44. r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  45. if (r)
  46. dev_err(&pdev->dev,
  47. "could not register clock provider: %s: %d\n",
  48. pdev->name, r);
  49. return r;
  50. }
  51. static struct platform_driver clk_mt2701_img_drv = {
  52. .probe = clk_mt2701_img_probe,
  53. .driver = {
  54. .name = "clk-mt2701-img",
  55. .of_match_table = of_match_clk_mt2701_img,
  56. },
  57. };
  58. builtin_platform_driver(clk_mt2701_img_drv);