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HID: i2c-hid: note that I2C xfer buffers are DMA-safe
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>
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1 changed files with 3 additions and 2 deletions
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@ -180,7 +180,7 @@ static int i2c_hid_xfer(struct i2c_hid *ihid,
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__func__, send_len, send_buf);
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msgs[n].addr = client->addr;
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msgs[n].flags = client->flags & I2C_M_TEN;
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msgs[n].flags = (client->flags & I2C_M_TEN) | I2C_M_DMA_SAFE;
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msgs[n].len = send_len;
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msgs[n].buf = send_buf;
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n++;
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@ -188,7 +188,8 @@ static int i2c_hid_xfer(struct i2c_hid *ihid,
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if (recv_len) {
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msgs[n].addr = client->addr;
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msgs[n].flags = (client->flags & I2C_M_TEN) | I2C_M_RD;
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msgs[n].flags = (client->flags & I2C_M_TEN) |
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I2C_M_RD | I2C_M_DMA_SAFE;
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msgs[n].len = recv_len;
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msgs[n].buf = recv_buf;
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n++;
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