clk: imx: clk-imx8qxp-lpcg: add runtime pm support (18cdbad4) · Commits · 戴 / test

drivers/clk/imx/clk-imx8qxp-lpcg.c

+19 −5

Original line number	Diff line number	Diff line
		@@ -12,6 +12,7 @@
		#include <linux/of_address.h>
		#include <linux/of_device.h>
		#include <linux/platform_device.h>
		#include <linux/pm_runtime.h>
		#include <linux/slab.h>

		#include "clk-scu.h"
		@@ -239,6 +240,12 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev,
		return -EINVAL;
		}

		pm_runtime_get_noresume(&pdev->dev);
		pm_runtime_set_active(&pdev->dev);
		pm_runtime_set_autosuspend_delay(&pdev->dev, 500);
		pm_runtime_use_autosuspend(&pdev->dev);
		pm_runtime_enable(&pdev->dev);

		for (i = 0; i < count; i++) {
		idx = bit_offset[i] / 4;
		if (idx > IMX_LPCG_MAX_CLKS) {
		@@ -248,7 +255,7 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev,
		goto unreg;
		}

		clk_hws[idx] = imx_clk_lpcg_scu(output_names[i],
		clk_hws[idx] = imx_clk_lpcg_scu_dev(&pdev->dev, output_names[i],
		parent_names[i], 0, base,
		bit_offset[i], false);
		if (IS_ERR(clk_hws[idx])) {
		@@ -261,7 +268,12 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev,

		ret = devm_of_clk_add_hw_provider(&pdev->dev, imx_lpcg_of_clk_src_get,
		clk_data);
		if (!ret)
		if (ret)
		goto unreg;

		pm_runtime_mark_last_busy(&pdev->dev);
		pm_runtime_put_autosuspend(&pdev->dev);

		return 0;

		unreg:
		@@ -271,6 +283,8 @@ unreg:
		imx_clk_lpcg_scu_unregister(clk_hws[idx]);
		}

		pm_runtime_disable(&pdev->dev);

		return ret;
		}