clk-mt6779-img.c 1.5 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758
  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * Copyright (c) 2019 MediaTek Inc.
  4. * Author: Wendell Lin <wendell.lin@mediatek.com>
  5. */
  6. #include <linux/clk-provider.h>
  7. #include <linux/platform_device.h>
  8. #include <dt-bindings/clock/mt6779-clk.h>
  9. #include "clk-mtk.h"
  10. #include "clk-gate.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. GATE_MTK(_id, _name, _parent, &img_cg_regs, _shift, \
  18. &mtk_clk_gate_ops_setclr)
  19. static const struct mtk_gate img_clks[] = {
  20. GATE_IMG(CLK_IMG_LARB5, "imgsys_larb5", "img_sel", 0),
  21. GATE_IMG(CLK_IMG_LARB6, "imgsys_larb6", "img_sel", 1),
  22. GATE_IMG(CLK_IMG_DIP, "imgsys_dip", "img_sel", 2),
  23. GATE_IMG(CLK_IMG_MFB, "imgsys_mfb", "img_sel", 6),
  24. GATE_IMG(CLK_IMG_WPE_A, "imgsys_wpe_a", "img_sel", 7),
  25. };
  26. static const struct of_device_id of_match_clk_mt6779_img[] = {
  27. { .compatible = "mediatek,mt6779-imgsys", },
  28. {}
  29. };
  30. static int clk_mt6779_img_probe(struct platform_device *pdev)
  31. {
  32. struct clk_onecell_data *clk_data;
  33. struct device_node *node = pdev->dev.of_node;
  34. clk_data = mtk_alloc_clk_data(CLK_IMG_NR_CLK);
  35. mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
  36. clk_data);
  37. return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  38. }
  39. static struct platform_driver clk_mt6779_img_drv = {
  40. .probe = clk_mt6779_img_probe,
  41. .driver = {
  42. .name = "clk-mt6779-img",
  43. .of_match_table = of_match_clk_mt6779_img,
  44. },
  45. };
  46. builtin_platform_driver(clk_mt6779_img_drv);