Merge "qbt: Add ioctls to acquire and release wakelock" (2ce069e3) · Commits · e / devices / android_kernel_oneplus_sm8150

drivers/soc/qcom/qbt1000.c

+27 −1

Original line number	Diff line number	Diff line
		/* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -117,6 +117,7 @@ struct qbt1000_drvdata {
		enum fd_indication_mode fd_ind_mode;
		bool ipc_is_stale;
		bool gestures_enabled;
		atomic_t wakelock_acquired;
		};

		/*
		@@ -311,6 +312,11 @@ static int qbt1000_release(struct inode inode, struct file file)
		}
		drvdata = file->private_data;
		atomic_inc(&drvdata->available);
		if (atomic_read(&drvdata->wakelock_acquired) != 0) {
		pr_debug("Releasing wakelock\n");
		pm_relax(drvdata->dev);
		atomic_set(&drvdata->wakelock_acquired, 0);
		}
		return 0;
		}

		@@ -589,6 +595,25 @@ static long qbt1000_ioctl(
		}
		break;
		}
		case QBT1000_ACQUIRE_WAKELOCK:
		{
		if (atomic_read(&drvdata->wakelock_acquired) == 0) {
		pr_debug("Acquiring wakelock\n");
		pm_stay_awake(drvdata->dev);
		}
		atomic_inc(&drvdata->wakelock_acquired);
		break;
		}
		case QBT1000_RELEASE_WAKELOCK:
		{
		if (atomic_read(&drvdata->wakelock_acquired) == 0)
		break;
		if (atomic_dec_and_test(&drvdata->wakelock_acquired)) {
		pr_debug("Releasing wakelock\n");
		pm_relax(drvdata->dev);
		}
		break;
		}
		default:
		pr_err("invalid cmd %d\n", cmd);
		rc = -ENOIOCTLCMD;
		@@ -1234,6 +1259,7 @@ static int qbt1000_probe(struct platform_device *pdev)
		goto end;

		atomic_set(&drvdata->available, 1);
		atomic_set(&drvdata->wakelock_acquired, 0);

		mutex_init(&drvdata->mutex);
		mutex_init(&drvdata->fw_events_mutex);

include/uapi/linux/qbt1000.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -21,6 +21,8 @@ enum qbt1000_commands {
		QBT1000_CONFIGURE_POWER_KEY = 104
		};
		#define QBT1000_ENABLE_GESTURES 105
		#define QBT1000_ACQUIRE_WAKELOCK 106
		#define QBT1000_RELEASE_WAKELOCK 107

		/*
		* enum qbt1000_fw_event -