clk-mt6779-vdec.c 1.7 KB

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  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 "clk-mtk.h"
  9. #include "clk-gate.h"
  10. #include <dt-bindings/clock/mt6779-clk.h>
  11. static const struct mtk_gate_regs vdec0_cg_regs = {
  12. .set_ofs = 0x0000,
  13. .clr_ofs = 0x0004,
  14. .sta_ofs = 0x0000,
  15. };
  16. static const struct mtk_gate_regs vdec1_cg_regs = {
  17. .set_ofs = 0x0008,
  18. .clr_ofs = 0x000c,
  19. .sta_ofs = 0x0008,
  20. };
  21. #define GATE_VDEC0_I(_id, _name, _parent, _shift) \
  22. GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift, \
  23. &mtk_clk_gate_ops_setclr_inv)
  24. #define GATE_VDEC1_I(_id, _name, _parent, _shift) \
  25. GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift, \
  26. &mtk_clk_gate_ops_setclr_inv)
  27. static const struct mtk_gate vdec_clks[] = {
  28. /* VDEC0 */
  29. GATE_VDEC0_I(CLK_VDEC_VDEC, "vdec_cken", "vdec_sel", 0),
  30. /* VDEC1 */
  31. GATE_VDEC1_I(CLK_VDEC_LARB1, "vdec_larb1_cken", "vdec_sel", 0),
  32. };
  33. static const struct of_device_id of_match_clk_mt6779_vdec[] = {
  34. { .compatible = "mediatek,mt6779-vdecsys", },
  35. {}
  36. };
  37. static int clk_mt6779_vdec_probe(struct platform_device *pdev)
  38. {
  39. struct clk_onecell_data *clk_data;
  40. struct device_node *node = pdev->dev.of_node;
  41. clk_data = mtk_alloc_clk_data(CLK_VDEC_GCON_NR_CLK);
  42. mtk_clk_register_gates(node, vdec_clks, ARRAY_SIZE(vdec_clks),
  43. clk_data);
  44. return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  45. }
  46. static struct platform_driver clk_mt6779_vdec_drv = {
  47. .probe = clk_mt6779_vdec_probe,
  48. .driver = {
  49. .name = "clk-mt6779-vdec",
  50. .of_match_table = of_match_clk_mt6779_vdec,
  51. },
  52. };
  53. builtin_platform_driver(clk_mt6779_vdec_drv);