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>

diff --git a/drivers/i2c/busses/i2c-nvidia-gpu.c b/drivers/i2c/busses/i2c-nvidia-gpu.c
index 4307b42..e99c3bb 100644 (file)
--- 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,
 };