diff options
| author | Billy Tsai <billy_tsai@aspeedtech.com> | 2025-02-04 17:17:01 +0800 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2025-02-20 22:54:28 +0100 |
| commit | 6866c91f8c2327546d850d5a85025fb81e2089bf (patch) | |
| tree | 8979d45021cbff87f66ca552c0046d24a4cc2679 /include/linux/i3c/master.h | |
| parent | bdffad83d75608eb6289858909fafcc72f046547 (diff) | |
| download | lwn-6866c91f8c2327546d850d5a85025fb81e2089bf.tar.gz lwn-6866c91f8c2327546d850d5a85025fb81e2089bf.zip | |
i3c: Remove the const qualifier from i2c_msg pointer in i2c_xfers API
The change is necessary to enable the use of the
`i2c_get_dma_safe_msg_buf()` API, which requires a non-const
`struct i2c_msg *` to operate. The `i2c_get_dma_safe_msg_buf()` function
ensures safe handling of I2C messages when using DMA, making it essential
for scenarios where DMA transfers are involved. By removing the `const`
qualifier, this patch allows drivers to prepare and manage DMA-safe
buffers directly.
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Mukesh Kumar Savaliya <quic_msavaliy@quicinc.com>
Link: https://lore.kernel.org/r/20250204091702.4014466-1-billy_tsai@aspeedtech.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'include/linux/i3c/master.h')
| -rw-r--r-- | include/linux/i3c/master.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/i3c/master.h b/include/linux/i3c/master.h index 12d532b012c5..c67922ece617 100644 --- a/include/linux/i3c/master.h +++ b/include/linux/i3c/master.h @@ -475,7 +475,7 @@ struct i3c_master_controller_ops { int (*attach_i2c_dev)(struct i2c_dev_desc *dev); void (*detach_i2c_dev)(struct i2c_dev_desc *dev); int (*i2c_xfers)(struct i2c_dev_desc *dev, - const struct i2c_msg *xfers, int nxfers); + struct i2c_msg *xfers, int nxfers); int (*request_ibi)(struct i3c_dev_desc *dev, const struct i3c_ibi_setup *req); void (*free_ibi)(struct i3c_dev_desc *dev); |