clk-a10-codec.c 895 B

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * Copyright 2013 Emilio López
  4. *
  5. * Emilio López <[email protected]>
  6. */
  7. #include <linux/clk-provider.h>
  8. #include <linux/of.h>
  9. #include <linux/of_address.h>
  10. #define SUN4I_CODEC_GATE 31
  11. static void __init sun4i_codec_clk_setup(struct device_node *node)
  12. {
  13. struct clk *clk;
  14. const char *clk_name = node->name, *parent_name;
  15. void __iomem *reg;
  16. reg = of_io_request_and_map(node, 0, of_node_full_name(node));
  17. if (IS_ERR(reg))
  18. return;
  19. of_property_read_string(node, "clock-output-names", &clk_name);
  20. parent_name = of_clk_get_parent_name(node, 0);
  21. clk = clk_register_gate(NULL, clk_name, parent_name,
  22. CLK_SET_RATE_PARENT, reg,
  23. SUN4I_CODEC_GATE, 0, NULL);
  24. if (!IS_ERR(clk))
  25. of_clk_add_provider(node, of_clk_src_simple_get, clk);
  26. }
  27. CLK_OF_DECLARE(sun4i_codec, "allwinner,sun4i-a10-codec-clk",
  28. sun4i_codec_clk_setup);