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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org add runtime pm support Reviewed-by: Stephen Boyd Signed-off-by: Dong Aisheng --- ChangeLog: v5->v7: * no changes v4->v5: * minor err check fix v3->v4: * disable rpm when error out v3: new patch --- drivers/clk/imx/clk-imx8qxp-lpcg.c | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) diff --git a/drivers/clk/imx/clk-imx8qxp-lpcg.c b/drivers/clk/imx/clk-imx8qxp-lpcg.c index 1881d7f3ccec..3385de76f6c7 100644 --- a/drivers/clk/imx/clk-imx8qxp-lpcg.c +++ b/drivers/clk/imx/clk-imx8qxp-lpcg.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #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) { @@ -248,9 +255,9 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev, goto unreg; } - clk_hws[idx] = imx_clk_lpcg_scu(output_names[i], - parent_names[i], 0, base, - bit_offset[i], false); + 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])) { dev_warn(&pdev->dev, "failed to register clock %d\n", idx); @@ -261,8 +268,13 @@ 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) - return 0; + if (ret) + goto unreg; + + pm_runtime_mark_last_busy(&pdev->dev); + pm_runtime_put_autosuspend(&pdev->dev); + + return 0; unreg: while (--i >= 0) { @@ -271,6 +283,8 @@ static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev, imx_clk_lpcg_scu_unregister(clk_hws[idx]); } + pm_runtime_disable(&pdev->dev); + return ret; } -- 2.23.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel