Merge "icnss: Add support for suspend/resume" (da3d93c3) · Commits · e / devices / android_kernel_sony_msm8998

drivers/soc/qcom/icnss.c

+54 −0

Original line number	Diff line number	Diff line
		@@ -133,6 +133,7 @@ enum icnss_driver_state {
		ICNSS_FW_READY,
		ICNSS_DRIVER_PROBED,
		ICNSS_FW_TEST_MODE,
		ICNSS_SUSPEND,
		};

		struct ce_irq_list {
		@@ -2002,6 +2003,9 @@ static int icnss_stats_show_state(struct seq_file s, struct icnss_data priv)
		case ICNSS_FW_TEST_MODE:
		seq_puts(s, "FW TEST MODE");
		continue;
		case ICNSS_SUSPEND:
		seq_puts(s, "DRIVER SUSPENDED");
		continue;
		}

		seq_printf(s, "UNKNOWN-%d", i);
		@@ -2362,6 +2366,54 @@ static int icnss_remove(struct platform_device *pdev)
		return 0;
		}

		static int icnss_suspend(struct platform_device *pdev,
		pm_message_t state)
		{
		int ret = 0;

		if (!penv) {
		ret = -ENODEV;
		goto out;
		}

		icnss_pr_dbg("Driver suspending, state: 0x%lx\n",
		penv->state);

		if (!penv->ops)
		goto out;

		if (penv->ops->suspend)
		ret = penv->ops->suspend(&pdev->dev, state);

		out:
		if (ret == 0)
		set_bit(ICNSS_SUSPEND, &penv->state);
		return ret;
		}

		static int icnss_resume(struct platform_device *pdev)
		{
		int ret = 0;

		if (!penv) {
		ret = -ENODEV;
		goto out;
		}

		icnss_pr_dbg("Driver resuming, state: 0x%lx\n",
		penv->state);

		if (!penv->ops)
		goto out;

		if (penv->ops->resume)
		ret = penv->ops->resume(&pdev->dev);

		out:
		if (ret == 0)
		clear_bit(ICNSS_SUSPEND, &penv->state);
		return ret;
		}

		static const struct of_device_id icnss_dt_match[] = {
		{.compatible = "qcom,icnss"},
		@@ -2373,6 +2425,8 @@ MODULE_DEVICE_TABLE(of, icnss_dt_match);
		static struct platform_driver icnss_driver = {
		.probe = icnss_probe,
		.remove = icnss_remove,
		.suspend = icnss_suspend,
		.resume = icnss_resume,
		.driver = {
		.name = "icnss",
		.owner = THIS_MODULE,