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Commit 6a032852 authored by Deepak Katragadda's avatar Deepak Katragadda
Browse files

clk: qcom: clk-cpu-osm: Add OPP support for the L3 clock 



Add logic to fill the L3 clock frequency-voltage mappings
to the OPP tables for the devfreq client to use.

Change-Id: Ie19be322d70757236680b4bf38708d24ace001e3
Signed-off-by: default avatarDeepak Katragadda <dkatraga@codeaurora.org>
parent 68dfac8e

drivers/clk/qcom/clk-cpu-osm.c

+31 −1
Original line number Diff line number Diff line
@@ -1737,6 +1737,8 @@ static void populate_opp_table(struct platform_device *pdev) 
	struct device *cpu_dev;

	struct clk_osm *c, *parent;

	struct clk_hw *hw_parent;

	struct device_node *l3_node_0, *l3_node_4;

	struct platform_device *l3_dev_0, *l3_dev_4;



	for_each_possible_cpu(cpu) {

		c = logical_cpu_to_clk(cpu);
@@ -1754,7 +1756,35 @@ static void populate_opp_table(struct platform_device *pdev) 
					dev_name(cpu_dev));

	}



	/*TODO: Figure out which device to tag the L3 table to */

	l3_node_0 = of_parse_phandle(pdev->dev.of_node, "l3-dev0", 0);

	if (!l3_node_0) {

		pr_err("can't find the L3 cluster 0 dt node\n");

		return;

	}



	l3_dev_0 = of_find_device_by_node(l3_node_0);

	if (!l3_dev_0) {

		pr_err("can't find the L3 cluster 0 dt device\n");

		return;

	}



	if (add_opp(&l3_clk, &l3_dev_0->dev))

		pr_err("Failed to add OPP levels for L3 cluster 0\n");



	l3_node_4 = of_parse_phandle(pdev->dev.of_node, "l3-dev4", 0);

	if (!l3_node_4) {

		pr_err("can't find the L3 cluster 1 dt node\n");

		return;

	}



	l3_dev_4 = of_find_device_by_node(l3_node_4);

	if (!l3_dev_4) {

		pr_err("can't find the L3 cluster 1 dt device\n");

		return;

	}



	if (add_opp(&l3_clk, &l3_dev_4->dev))

		pr_err("Failed to add OPP levels for L3 cluster 1\n");

}



static u64 clk_osm_get_cpu_cycle_counter(int cpu)