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Release 4.11 drivers/clk/imx/clk.c

Directory: drivers/clk/imx
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include "clk.h"


DEFINE_SPINLOCK(imx_ccm_lock);


void __init imx_check_clocks(struct clk *clks[], unsigned int count) { unsigned i; for (i = 0; i < count; i++) if (IS_ERR(clks[i])) pr_err("i.MX clk %u: register failed with %ld\n", i, PTR_ERR(clks[i])); }

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PersonTokensPropCommitsCommitProp
Alexander Shiyan57100.00%1100.00%
Total57100.00%1100.00%


static struct clk * __init imx_obtain_fixed_clock_from_dt(const char *name) { struct of_phandle_args phandle; struct clk *clk = ERR_PTR(-ENODEV); char *path; path = kasprintf(GFP_KERNEL, "/clocks/%s", name); if (!path) return ERR_PTR(-ENOMEM); phandle.np = of_find_node_by_path(path); kfree(path); if (phandle.np) { clk = of_clk_get_from_provider(&phandle); of_node_put(phandle.np); } return clk; }

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PersonTokensPropCommitsCommitProp
Martin Fuzzey96100.00%1100.00%
Total96100.00%1100.00%


struct clk * __init imx_obtain_fixed_clock( const char *name, unsigned long rate) { struct clk *clk; clk = imx_obtain_fixed_clock_from_dt(name); if (IS_ERR(clk)) clk = imx_clk_fixed(name, rate); return clk; }

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PersonTokensPropCommitsCommitProp
Martin Fuzzey48100.00%1100.00%
Total48100.00%1100.00%

/* * This fixups the register CCM_CSCMR1 write value. * The write/read/divider values of the aclk_podf field * of that register have the relationship described by * the following table: * * write value read value divider * 3b'000 3b'110 7 * 3b'001 3b'111 8 * 3b'010 3b'100 5 * 3b'011 3b'101 6 * 3b'100 3b'010 3 * 3b'101 3b'011 4 * 3b'110 3b'000 1 * 3b'111 3b'001 2(default) * * That's why we do the xor operation below. */ #define CSCMR1_FIXUP 0x00600000
void imx_cscmr1_fixup(u32 *val) { *val ^= CSCMR1_FIXUP; return; }

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PersonTokensPropCommitsCommitProp
Liu Ying15100.00%1100.00%
Total15100.00%1100.00%

static int imx_keep_uart_clocks __initdata; static struct clk ** const *imx_uart_clocks __initdata;
static int __init imx_keep_uart_clocks_param(char *str) { imx_keep_uart_clocks = 1; return 0; }

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Lucas Stach18100.00%1100.00%
Total18100.00%1100.00%

__setup_param("earlycon", imx_keep_uart_earlycon, imx_keep_uart_clocks_param, 0); __setup_param("earlyprintk", imx_keep_uart_earlyprintk, imx_keep_uart_clocks_param, 0);
void __init imx_register_uart_clocks(struct clk ** const clks[]) { if (imx_keep_uart_clocks) { int i; imx_uart_clocks = clks; for (i = 0; imx_uart_clocks[i]; i++) clk_prepare_enable(*imx_uart_clocks[i]); } }

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PersonTokensPropCommitsCommitProp
Lucas Stach50100.00%1100.00%
Total50100.00%1100.00%


static int __init imx_clk_disable_uart(void) { if (imx_keep_uart_clocks && imx_uart_clocks) { int i; for (i = 0; imx_uart_clocks[i]; i++) clk_disable_unprepare(*imx_uart_clocks[i]); } return 0; }

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PersonTokensPropCommitsCommitProp
Lucas Stach46100.00%1100.00%
Total46100.00%1100.00%

late_initcall_sync(imx_clk_disable_uart);

Overall Contributors

PersonTokensPropCommitsCommitProp
Lucas Stach15639.00%116.67%
Martin Fuzzey15639.00%116.67%
Alexander Shiyan5714.25%116.67%
Liu Ying205.00%116.67%
Sascha Hauer82.00%116.67%
Fabio Estevam30.75%116.67%
Total400100.00%6100.00%
Directory: drivers/clk/imx
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