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authorAdrian Ng Ho Yin <adrian.ho.yin.ng@altera.com>2026-07-08 00:17:37 -0700
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2026-07-20 18:15:26 +0200
commit2805eb4d075b9a939cb5802aee7fe251762cf38e (patch)
treeae56c717e2c6b2c23a7baec1b2cb03dc2f0cb42d /include/linux/i3c
parenta2714ef178e077c0a5ac5959634349eb970341e7 (diff)
downloadlinux-next-2805eb4d075b9a939cb5802aee7fe251762cf38e.tar.gz
linux-next-2805eb4d075b9a939cb5802aee7fe251762cf38e.zip
i3c: ccc: Add actual_len to struct i3c_ccc_cmd_payload
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>
Diffstat (limited to 'include/linux/i3c')
-rw-r--r--include/linux/i3c/ccc.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/i3c/ccc.h b/include/linux/i3c/ccc.h
index ad59a4ae60d1..d8052949e57e 100644
--- a/include/linux/i3c/ccc.h
+++ b/include/linux/i3c/ccc.h
@@ -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;
};