mirror of https://github.com/OpenIPC/firmware.git
125 lines
3.4 KiB
Diff
125 lines
3.4 KiB
Diff
diff -drupN a/drivers/clk/sunxi/clk-sun8i-mbus.c b/drivers/clk/sunxi/clk-sun8i-mbus.c
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--- a/drivers/clk/sunxi/clk-sun8i-mbus.c 2018-08-06 17:23:04.000000000 +0300
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+++ b/drivers/clk/sunxi/clk-sun8i-mbus.c 1970-01-01 03:00:00.000000000 +0300
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@@ -1,120 +0,0 @@
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-/*
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- * Copyright 2014 Chen-Yu Tsai
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- *
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- * Chen-Yu Tsai <wens@csie.org>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- * GNU General Public License for more details.
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- */
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-
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-#include <linux/clk.h>
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-#include <linux/clkdev.h>
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-#include <linux/clk-provider.h>
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-#include <linux/slab.h>
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-#include <linux/spinlock.h>
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-#include <linux/of_address.h>
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-
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-#define SUN8I_MBUS_ENABLE 31
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-#define SUN8I_MBUS_MUX_SHIFT 24
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-#define SUN8I_MBUS_MUX_MASK 0x3
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-#define SUN8I_MBUS_DIV_SHIFT 0
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-#define SUN8I_MBUS_DIV_WIDTH 3
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-#define SUN8I_MBUS_MAX_PARENTS 4
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-
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-static DEFINE_SPINLOCK(sun8i_a23_mbus_lock);
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-
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-static void __init sun8i_a23_mbus_setup(struct device_node *node)
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-{
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- int num_parents = of_clk_get_parent_count(node);
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- const char **parents;
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- const char *clk_name = node->name;
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- struct resource res;
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- struct clk_divider *div;
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- struct clk_gate *gate;
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- struct clk_mux *mux;
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- struct clk *clk;
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- void __iomem *reg;
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- int err;
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-
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- parents = kcalloc(num_parents, sizeof(*parents), GFP_KERNEL);
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- if (!parents)
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- return;
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-
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- reg = of_io_request_and_map(node, 0, of_node_full_name(node));
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- if (IS_ERR(reg)) {
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- pr_err("Could not get registers for sun8i-mbus-clk\n");
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- goto err_free_parents;
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- }
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-
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- div = kzalloc(sizeof(*div), GFP_KERNEL);
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- if (!div)
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- goto err_unmap;
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-
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- mux = kzalloc(sizeof(*mux), GFP_KERNEL);
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- if (!mux)
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- goto err_free_div;
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-
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- gate = kzalloc(sizeof(*gate), GFP_KERNEL);
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- if (!gate)
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- goto err_free_mux;
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-
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- of_property_read_string(node, "clock-output-names", &clk_name);
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- of_clk_parent_fill(node, parents, num_parents);
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-
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- gate->reg = reg;
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- gate->bit_idx = SUN8I_MBUS_ENABLE;
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- gate->lock = &sun8i_a23_mbus_lock;
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-
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- div->reg = reg;
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- div->shift = SUN8I_MBUS_DIV_SHIFT;
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- div->width = SUN8I_MBUS_DIV_WIDTH;
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- div->lock = &sun8i_a23_mbus_lock;
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-
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- mux->reg = reg;
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- mux->shift = SUN8I_MBUS_MUX_SHIFT;
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- mux->mask = SUN8I_MBUS_MUX_MASK;
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- mux->lock = &sun8i_a23_mbus_lock;
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-
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- clk = clk_register_composite(NULL, clk_name, parents, num_parents,
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- &mux->hw, &clk_mux_ops,
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- &div->hw, &clk_divider_ops,
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- &gate->hw, &clk_gate_ops,
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- 0);
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- if (IS_ERR(clk))
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- goto err_free_gate;
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-
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- err = of_clk_add_provider(node, of_clk_src_simple_get, clk);
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- if (err)
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- goto err_unregister_clk;
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-
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- kfree(parents); /* parents is deep copied */
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- /* The MBUS clocks needs to be always enabled */
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- __clk_get(clk);
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- clk_prepare_enable(clk);
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-
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- return;
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-
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-err_unregister_clk:
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- /* TODO: The composite clock stuff will leak a bit here. */
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- clk_unregister(clk);
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-err_free_gate:
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- kfree(gate);
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-err_free_mux:
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- kfree(mux);
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-err_free_div:
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- kfree(div);
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-err_unmap:
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- iounmap(reg);
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- of_address_to_resource(node, 0, &res);
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- release_mem_region(res.start, resource_size(&res));
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-err_free_parents:
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- kfree(parents);
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-}
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-CLK_OF_DECLARE(sun8i_a23_mbus, "allwinner,sun8i-a23-mbus-clk", sun8i_a23_mbus_setup);
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