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authorWolfram Sang <wsa@the-dreams.de>2018-11-09 18:07:32 +0100
committerWolfram Sang <wsa@the-dreams.de>2018-11-27 14:00:22 +0100
commit39129f28c9431522a6790e7b8c3283221a28447b (patch)
tree3756556bc42ab47d03ca307f89cbb7f560b02d02
parenti2c: nvidia-gpu: adhere to I2C fault codes (diff)
downloadlinux-39129f28c9431522a6790e7b8c3283221a28447b.tar.xz
linux-39129f28c9431522a6790e7b8c3283221a28447b.zip
i2c: nvidia-gpu: limit reads also for combined messages
If the controller can only do 4 byte reads, this needs to be applied for the read-part of combined messages, too. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Fixes: c71bcdcb42a7 ("i2c: add i2c bus driver for NVIDIA GPU") Acked-by: Ajay Gupta <ajayg@nvidia.com> Tested-by: Ajay Gupta <ajayg@nvidia.com>
-rw-r--r--drivers/i2c/busses/i2c-nvidia-gpu.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-nvidia-gpu.c b/drivers/i2c/busses/i2c-nvidia-gpu.c
index 4307b42901a1..e99c3bb58351 100644
--- a/drivers/i2c/busses/i2c-nvidia-gpu.c
+++ b/drivers/i2c/busses/i2c-nvidia-gpu.c
@@ -218,6 +218,7 @@ stop:
static const struct i2c_adapter_quirks gpu_i2c_quirks = {
.max_read_len = 4,
+ .max_comb_2nd_msg_len = 4,
.flags = I2C_AQ_COMB_WRITE_THEN_READ,
};