On 10/25/2013 10:57 AM, Tero Kristo wrote:
[...]
> diff --git a/drivers/clk/ti/clockdomain.c b/drivers/clk/ti/clockdomain.c
> new file mode 100644
> index 0000000..1b3099e
> --- /dev/null
> +++ b/drivers/clk/ti/clockdomain.c
> @@ -0,0 +1,58 @@
> +/*
> + * OMAP clockdomain support
> + *
> + * Copyright (C) 2013 Texas Instruments, Inc.
> + *
> + * Tero Kristo <[email protected]>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether express or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + */
> +
> +#include <linux/clk-provider.h>
> +#include <linux/slab.h>
> +#include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/clk/ti.h>
> +
> +static void __init of_ti_clockdomain_setup(struct device_node *node)
> +{
> + struct clk *clk;
> + struct clk_hw *clk_hw;
> + const char *clkdm_name = node->name;
> + int i;
> + int num_clks;
> +
> + num_clks = of_count_phandle_with_args(node, "clocks", "#clock-cells");
> +
> + for (i = 0; i < num_clks; i++) {
> + clk = of_clk_get(node, i);
> + if (__clk_get_flags(clk) & CLK_IS_BASIC) {
> + pr_warn("%s: can't setup clkdm for basic clk %s\n",
> + __func__, __clk_get_name(clk));
> + continue;
> + }
> + clk_hw = __clk_get_hw(clk);
> + to_clk_hw_omap(clk_hw)->clkdm_name = clkdm_name;
> + omap2_init_clk_clkdm(clk_hw);
eventually, this can disappear ofcourse.. and that will pave way to
remove the clock domain data to dts as well.. but yes, we have to find
a proper home for this away from current location..
> + }
> +}
> +
> +static struct of_device_id ti_clkdm_match_table[] __initdata = {
> + { .compatible = "ti,clockdomain" },
> + { }
> +};
> +
> +void __init ti_dt_clockdomains_setup(void)
since we are using of_clk_get, it will be good to provide
documentation w.r.t when the call is expected to be invoked.
> +{
> + struct device_node *np;
> + for_each_matching_node(np, ti_clkdm_match_table) {
> + of_ti_clockdomain_setup(np);
> + }
> +}
--
Regards,
Nishanth Menon
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