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Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version 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 this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] 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 this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright 2013 Emilio López
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*
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* Emilio López <emilio@elopez.com.ar>
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*/
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#include <linux/clk-provider.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/slab.h>
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#define SUNXI_OSC24M_GATE 0
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static DEFINE_SPINLOCK(hosc_lock);
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static void __init sun4i_osc_clk_setup(struct device_node *node)
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{
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struct clk *clk;
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struct clk_fixed_rate *fixed;
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struct clk_gate *gate;
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const char *clk_name = node->name;
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u32 rate;
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if (of_property_read_u32(node, "clock-frequency", &rate))
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return;
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/* allocate fixed-rate and gate clock structs */
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fixed = kzalloc(sizeof(struct clk_fixed_rate), GFP_KERNEL);
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if (!fixed)
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return;
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gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
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if (!gate)
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goto err_free_fixed;
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of_property_read_string(node, "clock-output-names", &clk_name);
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/* set up gate and fixed rate properties */
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gate->reg = of_iomap(node, 0);
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gate->bit_idx = SUNXI_OSC24M_GATE;
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gate->lock = &hosc_lock;
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fixed->fixed_rate = rate;
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clk = clk_register_composite(NULL, clk_name,
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NULL, 0,
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NULL, NULL,
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&fixed->hw, &clk_fixed_rate_ops,
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&gate->hw, &clk_gate_ops, 0);
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if (IS_ERR(clk))
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goto err_free_gate;
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of_clk_add_provider(node, of_clk_src_simple_get, clk);
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return;
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err_free_gate:
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kfree(gate);
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err_free_fixed:
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kfree(fixed);
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}
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CLK_OF_DECLARE(sun4i_osc, "allwinner,sun4i-a10-osc-clk", sun4i_osc_clk_setup);
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