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i3c: ccc: Add actual_len to struct i3c_ccc_cmd_payload

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Add actual_len to struct i3c_ccc_cmd_payload so drivers can report how
many bytes were received on a GET CCC without overwriting the requested
buffer length in len.

Signed-off-by: Adrian Ng Ho Yin <adrian.ho.yin.ng@altera.com>
Signed-off-by: Tze Yee Ng <tze.yee.ng@altera.com>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Tested-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> # on RZ/G3S
Link: https://patch.msgid.link/e452777c3a9be734a97e20b9822d8a4264ceadba.1783493868.git.tze.yee.ng@altera.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Adrian Ng Ho Yin
2026-07-08 00:17:37 -07:00
committed by Alexandre Belloni
parent 74be657d98
commit cae22bd965
1 changed files with 3 additions and 1 deletions
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4
include/linux/i3c/ccc.h
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@@ -343,11 +343,13 @@ struct i3c_ccc_getxtime {
/**
* struct i3c_ccc_cmd_payload - CCC payload
*
* @len: payload length
* @len: requested payload length
* @actual_len: number of bytes received on a GET CCC (filled by the driver)
* @data: payload data. This buffer must be DMA-able
*/
struct i3c_ccc_cmd_payload {
u16 len;
u16 actual_len;
void *data;
};