From 39129f28c9431522a6790e7b8c3283221a28447b Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Fri, 9 Nov 2018 18:07:32 +0100
Subject: 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>
---
drivers/i2c/busses/i2c-nvidia-gpu.c | 1 +
1 file changed, 1 insertion(+)
(limited to 'drivers/i2c/busses/i2c-nvidia-gpu.c')
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,
};
--
cgit v1.2.3