1 files changed, 0 insertions, 52 deletions
diff --git a/target/linux/layerscape/patches-5.4/808-i2c-0010-i2c-imx-fix-system-hang-due-to-access-i2c-registers-.patch b/target/linux/layerscape/patches-5.4/808-i2c-0010-i2c-imx-fix-system-hang-due-to-access-i2c-registers-.patch
deleted file mode 100644
index 435bb14e8d..0000000000
--- a/target/linux/layerscape/patches-5.4/808-i2c-0010-i2c-imx-fix-system-hang-due-to-access-i2c-registers-.patch
+++ /dev/null
@@ -1,52 +0,0 @@
-From 97db2ca4485dc7b10b8382832befe607ade59a6b Mon Sep 17 00:00:00 2001
-From: Dong Aisheng <aisheng.dong@nxp.com>
-Date: Sat, 26 Jan 2019 17:51:59 +0800
-Subject: [PATCH] i2c: imx: fix system hang due to access i2c registers without
- clock
-
-Currently, i2c_imx_bus_busy in i2c_imx_xfer is called before
-pm_runtime_get which means the clocks are still not enabled.
-This will cause a hang on IMX as IMX requires accessing registers
-with clocks.
-
-So let's change the order to ensure the clocks are enabled before
-accessing registers. This is also a more safe way to access registers,
-suppose shouldn't affect other platforms.
-
-Fixes: 4a6ebf1c125c ("i2c: imx: add workaround for erratum ERR010027")
-Reviewed-by: Biwen Li <biwen.li@nxp.com>
-Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
----
- drivers/i2c/busses/i2c-imx.c | 9 ++++-----
- 1 file changed, 4 insertions(+), 5 deletions(-)
-
---- a/drivers/i2c/busses/i2c-imx.c
-+++ b/drivers/i2c/busses/i2c-imx.c
-@@ -1094,12 +1094,15 @@ static int i2c_imx_xfer(struct i2c_adapt
- 
- 	dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);
- 
--
- 	if (!pm_runtime_enabled(i2c_imx->adapter.dev.parent)) {
- 		pm_runtime_enable(i2c_imx->adapter.dev.parent);
- 		enable_runtime_pm = true;
- 	}
- 
-+	result = pm_runtime_get_sync(i2c_imx->adapter.dev.parent);
-+	if (result < 0)
-+		goto out;
-+
- 	/*
- 	 * workround for ERR010027: ensure that the I2C BUS is idle
- 	 * before switching to master mode and attempting a Start cycle
-@@ -1113,10 +1116,6 @@ static int i2c_imx_xfer(struct i2c_adapt
- 			goto out;
- 	}
- 
--	result = pm_runtime_get_sync(i2c_imx->adapter.dev.parent);
--	if (result < 0)
--		goto out;
--
- 	/* Start I2C transfer */
- 	result = i2c_imx_start(i2c_imx);
- 	if (result) {