diff options
Diffstat (limited to 'drivers/clk/imx/clk.c')
| -rw-r--r-- | drivers/clk/imx/clk.c | 46 |
1 files changed, 32 insertions, 14 deletions
diff --git a/drivers/clk/imx/clk.c b/drivers/clk/imx/clk.c index 7cc669934253..df83bd939492 100644 --- a/drivers/clk/imx/clk.c +++ b/drivers/clk/imx/clk.c @@ -17,13 +17,8 @@ DEFINE_SPINLOCK(imx_ccm_lock); EXPORT_SYMBOL_GPL(imx_ccm_lock); -void imx_unregister_clocks(struct clk *clks[], unsigned int count) -{ - unsigned int i; - - for (i = 0; i < count; i++) - clk_unregister(clks[i]); -} +bool mcore_booted; +EXPORT_SYMBOL_GPL(mcore_booted); void imx_unregister_hw_clocks(struct clk_hw *hws[], unsigned int count) { @@ -107,8 +102,21 @@ struct clk_hw *imx_obtain_fixed_clock_hw( return __clk_get_hw(clk); } -struct clk_hw * imx_obtain_fixed_clk_hw(struct device_node *np, - const char *name) +struct clk_hw *imx_obtain_fixed_of_clock(struct device_node *np, + const char *name, unsigned long rate) +{ + struct clk *clk = of_clk_get_by_name(np, name); + struct clk_hw *hw; + + if (IS_ERR(clk)) + hw = imx_obtain_fixed_clock_hw(name, rate); + else + hw = __clk_get_hw(clk); + + return hw; +} + +struct clk_hw *imx_get_clk_hw_by_name(struct device_node *np, const char *name) { struct clk *clk; @@ -118,7 +126,7 @@ struct clk_hw * imx_obtain_fixed_clk_hw(struct device_node *np, return __clk_get_hw(clk); } -EXPORT_SYMBOL_GPL(imx_obtain_fixed_clk_hw); +EXPORT_SYMBOL_GPL(imx_get_clk_hw_by_name); /* * This fixups the register CCM_CSCMR1 write value. @@ -163,8 +171,10 @@ __setup_param("earlycon", imx_keep_uart_earlycon, __setup_param("earlyprintk", imx_keep_uart_earlyprintk, imx_keep_uart_clocks_param, 0); -void imx_register_uart_clocks(unsigned int clk_count) +void imx_register_uart_clocks(void) { + unsigned int num __maybe_unused; + imx_enabled_uart_clocks = 0; /* i.MX boards use device trees now. For build tests without CONFIG_OF, do nothing */ @@ -172,12 +182,18 @@ void imx_register_uart_clocks(unsigned int clk_count) if (imx_keep_uart_clocks) { int i; - imx_uart_clocks = kcalloc(clk_count, sizeof(struct clk *), GFP_KERNEL); + num = of_clk_get_parent_count(of_stdout); + if (!num) + return; if (!of_stdout) return; - for (i = 0; i < clk_count; i++) { + imx_uart_clocks = kcalloc(num, sizeof(struct clk *), GFP_KERNEL); + if (!imx_uart_clocks) + return; + + for (i = 0; i < num; i++) { imx_uart_clocks[imx_enabled_uart_clocks] = of_clk_get(of_stdout, i); /* Stop if there are no more of_stdout references */ @@ -201,12 +217,14 @@ static int __init imx_clk_disable_uart(void) clk_disable_unprepare(imx_uart_clocks[i]); clk_put(imx_uart_clocks[i]); } - kfree(imx_uart_clocks); } + kfree(imx_uart_clocks); + return 0; } late_initcall_sync(imx_clk_disable_uart); #endif +MODULE_DESCRIPTION("Common clock support for NXP i.MX SoC family"); MODULE_LICENSE("GPL v2"); |