Commit cfdc0411 authored Aug 31, 2018 by Dong Aisheng Committed by Stephen Boyd Oct 16, 2018

clk: bulk: add of_clk_bulk_get()

'clock-names' property is optional in DT, so of_clk_bulk_get() is
introduced here to handle this for DT users without 'clock-names'
specified. Later clk_bulk_get_all() will be implemented on top of
it and this API will be kept private until someone proves they need
it because they don't have a struct device pointer.

Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Russell King <linux@arm.linux.org.uk>
Reported-by: Shawn Guo <shawnguo@kernel.org>
Tested-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

parent 5b394b2d

drivers/clk/clk-bulk.c

+29 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,35 @@
		#include <linux/clk.h>
		#include <linux/device.h>
		#include <linux/export.h>
		#include <linux/of.h>

		static int __must_check of_clk_bulk_get(struct device_node *np, int num_clks,
		struct clk_bulk_data *clks)
		{
		int ret;
		int i;

		for (i = 0; i < num_clks; i++)
		clks[i].clk = NULL;

		for (i = 0; i < num_clks; i++) {
		clks[i].clk = of_clk_get(np, i);
		if (IS_ERR(clks[i].clk)) {
		ret = PTR_ERR(clks[i].clk);
		pr_err("%pOF: Failed to get clk index: %d ret: %d\n",
		np, i, ret);
		clks[i].clk = NULL;
		goto err;
		}
		}

		return 0;

		err:
		clk_bulk_put(i, clks);

		return ret;
		}

		void clk_bulk_put(int num_clks, struct clk_bulk_data *clks)
		{