[PATCH v3 10/11] clk: imx: clk-imx8qxp-lpcg: add runtime pm support
From: Dong Aisheng <aisheng.dong@nxp.com>
Date: 2019-07-16 15:23:24
Also in:
linux-clk
Subsystem:
common clk framework, nxp i.mx clock drivers, the rest · Maintainers:
Michael Turquette, Stephen Boyd, Abel Vesa, Linus Torvalds
add runtime pm support Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> --- ChangeLog: v3: new patch --- drivers/clk/imx/clk-imx8qxp-lpcg.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-)
diff --git a/drivers/clk/imx/clk-imx8qxp-lpcg.c b/drivers/clk/imx/clk-imx8qxp-lpcg.c
index dbb8960..0043639 100644
--- a/drivers/clk/imx/clk-imx8qxp-lpcg.c
+++ b/drivers/clk/imx/clk-imx8qxp-lpcg.c@@ -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"
@@ -214,6 +215,12 @@ 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",
@@ -221,9 +228,9 @@ 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);
@@ -231,8 +238,13 @@ 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)
--
2.7.4
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