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Commit 61692529 authored by Devesh Jhunjhunwala's avatar Devesh Jhunjhunwala
Browse files

clk: msm: Add opp_table_populated flag to the clk struct 



In some cases, populate_clock_opp_table may be called multiple
times on the same clk. To accommodate this, add a flag to the
clk struct which keeps track of whether the OPP table of the clk
is populated.

Change-Id: I91682b4d75a39fd757b871bfa74d11568a1655ac
Signed-off-by: default avatarDevesh Jhunjhunwala <deveshj@codeaurora.org>
parent 58be1b1f

drivers/clk/msm/clock.c

+4 −1
Original line number Diff line number Diff line
@@ -1181,7 +1181,7 @@ static void populate_clock_opp_table(struct device_node *np, 


		store_vcorner = false;

		clk = table[i].clk;

		if (!clk || !clk->num_fmax)

		if (!clk || !clk->num_fmax || clk->opp_table_populated)

			continue;



		if (strlen(clk->dbg_name) + LEN_OPP_HANDLE
@@ -1276,6 +1276,9 @@ static void populate_clock_opp_table(struct device_node *np, 
			n++;

		}

err_round_rate:

		/* If OPP table population was successful, set the flag */

		if (uv >= 0 && ret >= 0)

			clk->opp_table_populated = true;

		kfree(device_list);

	}

}

include/linux/clk/msm-clk-provider.h

+2 −0
Original line number Diff line number Diff line
@@ -167,6 +167,7 @@ struct clk_ops { 
 * @vdd_class: voltage scaling requirement class

 * @fmax: maximum frequency in Hz supported at each voltage level

 * @parent: the current source of this clock

 * @opp_table_populated: tracks if the OPP table of this clock has been filled

 */

struct clk {

	uint32_t flags;
@@ -193,6 +194,7 @@ struct clk { 


	unsigned long init_rate;

	bool always_on;

	bool opp_table_populated;



	struct dentry *clk_dir;

};