4 #include <linux/slab.h>
5 #include <linux/spinlock.h>
8 DEFINE_SPINLOCK(imx_ccm_lock);
10 static struct clk * __init imx_obtain_fixed_clock_from_dt(const char *name)
12 struct of_phandle_args phandle;
13 struct clk *clk = ERR_PTR(-ENODEV);
16 path = kasprintf(GFP_KERNEL, "/clocks/%s", name);
18 return ERR_PTR(-ENOMEM);
20 phandle.np = of_find_node_by_path(path);
24 clk = of_clk_get_from_provider(&phandle);
25 of_node_put(phandle.np);
30 struct clk * __init imx_obtain_fixed_clock(
31 const char *name, unsigned long rate)
35 clk = imx_obtain_fixed_clock_from_dt(name);
37 clk = imx_clk_fixed(name, rate);
42 * This fixups the register CCM_CSCMR1 write value.
43 * The write/read/divider values of the aclk_podf field
44 * of that register have the relationship described by
45 * the following table:
47 * write value read value divider
55 * 3b'111 3b'001 2(default)
57 * That's why we do the xor operation below.
59 #define CSCMR1_FIXUP 0x00600000
61 void imx_cscmr1_fixup(u32 *val)