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Commit 246c40b3 authored by Girish Mahadevan's avatar Girish Mahadevan
Browse files

msm: msm_bus: Reset fab clock state after transactions 



After aggregating fabric clocks for the nodes in a transaction
reset all the fabric clock states, not just the fabrics impacted
by this transaction.

Change-Id: I79bac2d607380f1bda4b14b906d9e4680d93fddb
Signed-off-by: default avatarGirish Mahadevan <girishm@codeaurora.org>
parent bf76eb8e

drivers/platform/msm/msm_bus/msm_bus_fabric_adhoc.c

+31 −1
Original line number Diff line number Diff line
@@ -67,8 +67,10 @@ static int msm_bus_agg_fab_clks(struct device *bus_dev, void *data) 
	int ret = 0;

	int ctx = *(int *)data;



	if (ctx >= NUM_CTX)

	if (ctx >= NUM_CTX) {

		MSM_BUS_ERR("%s: Invalid Context %d", __func__, ctx);

		goto exit_agg_fab_clks;

	}



	node = bus_dev->platform_data;

	if (!node) {
@@ -89,6 +91,31 @@ exit_agg_fab_clks: 
	return ret;

}



static int msm_bus_reset_fab_clks(struct device *bus_dev, void *data)

{

	struct msm_bus_node_device_type *node = NULL;

	int ret = 0;

	int ctx = *(int *)data;



	if (ctx >= NUM_CTX) {

		MSM_BUS_ERR("%s: Invalid Context %d", __func__, ctx);

		goto exit_reset_fab_clks;

	}



	node = bus_dev->platform_data;

	if (!node) {

		MSM_BUS_ERR("%s: Can't get device info", __func__);

		goto exit_reset_fab_clks;

	}



	if (node->node_info->is_fab_dev) {

		node->cur_clk_hz[ctx] = 0;

		MSM_BUS_DBG("Resetting for node %d", node->node_info->id);

	}

exit_reset_fab_clks:

	return ret;

}





static int send_rpm_msg(struct device *device)

{
@@ -278,6 +305,9 @@ int msm_bus_commit_data(int *dirty_nodes, int ctx, int num_dirty) 
					__func__, dirty_nodes[i]);

	}

	kfree(dirty_nodes);

	/* Aggregate the bus clocks */

	bus_for_each_dev(&msm_bus_type, NULL, (void *)&ctx,

				msm_bus_reset_fab_clks);

	return ret;

}