Merge "qbt: Add ioctls to acquire and release wakelock" (0a5ac2da) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/soc/qcom/qbt_handler.c

+26 −0

Original line number	Diff line number	Diff line
		@@ -91,6 +91,7 @@ struct qbt_drvdata {
		bool is_wuhb_connected;
		struct qbt_touch_config touch_config;
		struct fd_userspace_buf scrath_buf;
		atomic_t wakelock_acquired;
		};

		static struct qbt_drvdata *drvdata_g;
		@@ -283,6 +284,11 @@ static int qbt_release(struct inode inode, struct file file)
		pr_err("Invalid minor number\n");
		return -EINVAL;
		}
		if (atomic_read(&drvdata->wakelock_acquired) != 0) {
		pr_debug("Releasing wakelock\n");
		pm_relax(drvdata->dev);
		atomic_set(&drvdata->wakelock_acquired, 0);
		}
		pr_debug("exit : fd_available=%d\n", drvdata->fd_available);
		return 0;
		}
		@@ -411,6 +417,25 @@ static long qbt_ioctl(
		drvdata->touch_config.rad_y);
		break;
		}
		case QBT_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 QBT_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;
		@@ -1018,6 +1043,7 @@ static int qbt_probe(struct platform_device *pdev)

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

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

+2 −0

Original line number	Diff line number	Diff line
		@@ -15,6 +15,8 @@
		#define QBT_ENABLE_FD 104
		#define QBT_DISABLE_FD 105
		#define QBT_CONFIGURE_TOUCH_FD 106
		#define QBT_ACQUIRE_WAKELOCK 107
		#define QBT_RELEASE_WAKELOCK 108

		/*
		* enum qbt_fw_event -