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clk: imx: clk-imx8qxp-lpcg: add runtime pm support 

add runtime pm support

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
5.4-rM2-2.2.x-imx-squashed
Dong Aisheng 2019-02-28 18:56:42 +08:00
parent 57a376f3cf
commit 016611a0a5
1 changed files with 17 additions and 5 deletions
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22
drivers/clk/imx/clk-imx8qxp-lpcg.c
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@ -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"
@ -434,6 +435,12 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev,
autogate = of_property_read_bool(np, "hw-autogate");
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 < clk_data->num; i++) {
if (bit_offset[i] > 31) {
dev_warn(&pdev->dev, "invalid bit offset of clock %d\n",
@ -441,9 +448,9 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev,
return -EINVAL;
}
clk_hws[i] = imx_clk_lpcg_scu(output_names[i],
parent_names[i], 0, base,
bit_offset[i], autogate);
clk_hws[i] = imx_clk_lpcg_scu_dev(&pdev->dev, output_names[i],
parent_names[i], 0, base,
bit_offset[i], autogate);
if (IS_ERR(clk_hws[i])) {
dev_warn(&pdev->dev, "failed to register clock %d\n",
i);
@ -451,8 +458,13 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev,
}
}
return devm_of_clk_add_hw_provider(&pdev->dev, of_clk_hw_onecell_get,
clk_data);
ret = devm_of_clk_add_hw_provider(&pdev->dev, of_clk_hw_onecell_get,
clk_data);
pm_runtime_mark_last_busy(&pdev->dev);
pm_runtime_put_autosuspend(&pdev->dev);
return ret;
}
static int imx8qxp_lpcg_clk_probe(struct platform_device *pdev)