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HID: i2c-hid: note that I2C xfer buffers are DMA-safe

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All I2C communications in the driver use driver-private buffers that are
DMA-safe, so mark them as such.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Dmitry Torokhov 2022-01-17 23:26:28 -08:00 committed by Jiri Kosina
parent 551117c522
commit 1c4d6cd4cb
1 changed files with 3 additions and 2 deletions
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5
drivers/hid/i2c-hid/i2c-hid-core.c
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@ -180,7 +180,7 @@ static int i2c_hid_xfer(struct i2c_hid *ihid,
__func__, send_len, send_buf);
msgs[n].addr = client->addr;
msgs[n].flags = client->flags & I2C_M_TEN;
msgs[n].flags = (client->flags & I2C_M_TEN) | I2C_M_DMA_SAFE;
msgs[n].len = send_len;
msgs[n].buf = send_buf;
n++;
@ -188,7 +188,8 @@ static int i2c_hid_xfer(struct i2c_hid *ihid,
if (recv_len) {
msgs[n].addr = client->addr;
msgs[n].flags = (client->flags & I2C_M_TEN) | I2C_M_RD;
msgs[n].flags = (client->flags & I2C_M_TEN) |
I2C_M_RD | I2C_M_DMA_SAFE;
msgs[n].len = recv_len;
msgs[n].buf = recv_buf;
n++;