Commit 78edeb08 authored by Dong Aisheng's avatar Dong Aisheng Committed by Shawn Guo
Browse files

clk: imx: scu: add runtime pm support 



Add runtime pm support

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Michael Turquette <mturquette@baylibre.com>
Reviewed-by: default avatarStephen Boyd <sboyd@kernel.org>
Signed-off-by: default avatarDong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 2f1a2c1d

drivers/clk/imx/clk-scu.c

+20 −2
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
#include <linux/of_platform.h>

#include <linux/platform_device.h>

#include <linux/pm_domain.h>

#include <linux/pm_runtime.h>

#include <linux/slab.h>



#include "clk-scu.h"
@@ -453,15 +454,32 @@ static int imx_clk_scu_probe(struct platform_device *pdev) 
	struct device *dev = &pdev->dev;

	struct imx_scu_clk_node *clk = dev_get_platdata(dev);

	struct clk_hw *hw;

	int ret;



	pm_runtime_set_suspended(dev);

	pm_runtime_set_autosuspend_delay(dev, 50);

	pm_runtime_use_autosuspend(&pdev->dev);

	pm_runtime_enable(dev);



	ret = pm_runtime_get_sync(dev);

	if (ret) {

		pm_runtime_disable(dev);

		return ret;

	}



	hw = __imx_clk_scu(NULL, clk->name, clk->parents, clk->num_parents,

	hw = __imx_clk_scu(dev, clk->name, clk->parents, clk->num_parents,

			   clk->rsrc, clk->clk_type);

	if (IS_ERR(hw))

	if (IS_ERR(hw)) {

		pm_runtime_disable(dev);

		return PTR_ERR(hw);

	}



	clk->hw = hw;

	list_add_tail(&clk->node, &imx_scu_clks[clk->rsrc]);



	pm_runtime_mark_last_busy(&pdev->dev);

	pm_runtime_put_autosuspend(&pdev->dev);



	dev_dbg(dev, "register SCU clock rsrc:%d type:%d\n", clk->rsrc,

		clk->clk_type);