From bc1c2048abbe3c3074b4de91d213595c57741a6b Mon Sep 17 00:00:00 2001
From: Mikko Perttunen <mperttunen@nvidia.com>
Date: Tue, 12 Jan 2021 12:22:25 +0200
Subject: [PATCH] i2c: bpmp-tegra: Ignore unknown I2C_M flags
Git-commit: bc1c2048abbe3c3074b4de91d213595c57741a6b
Patch-mainline: v5.11-rc5
References: git-fixes
In order to not to start returning errors when new I2C_M flags are
added, change behavior to just ignore all flags that we don't know
about. This includes the I2C_M_DMA_SAFE flag that already exists but
causes -EINVAL to be returned for valid transactions.
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/i2c/busses/i2c-tegra-bpmp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-tegra-bpmp.c b/drivers/i2c/busses/i2c-tegra-bpmp.c
index ec7a7e917edd..c0c7d01473f2 100644
--- a/drivers/i2c/busses/i2c-tegra-bpmp.c
+++ b/drivers/i2c/busses/i2c-tegra-bpmp.c
@@ -80,7 +80,7 @@ static int tegra_bpmp_xlate_flags(u16 flags, u16 *out)
flags &= ~I2C_M_RECV_LEN;
}
- return (flags != 0) ? -EINVAL : 0;
+ return 0;
}
/**
--
2.26.2