net: pse-pd: tps23881: Fix current measurement scaling

The TPS23881 improves on the TPS23880 with current sense resistors reduced
from 255 mOhm to 200 mOhm. This has a direct impact on the scaling of the
current measurement. However, the latest TPS23881 data sheet from May 2023
still shows the scaling of the TPS23880 model.

Fixes: 7f076ce3f1733 ("net: pse-pd: tps23881: Add support for power limit and measurement features")
Signed-off-by: Thomas Wismer <thomas.wismer@scs.ch>
Acked-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20251006204029.7169-2-thomas@wismer.xyz
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/pse-pd/tps23881.c b/drivers/net/pse-pd/tps23881.c
index 63f8f43062bce6f369bdfd3c9b4ff42b992632f0..b724b222ab44c9a60c780c96a616bd8ece75dcbb 100644 (file)
--- a/drivers/net/pse-pd/tps23881.c
+++ b/drivers/net/pse-pd/tps23881.c
@@ -62,7 +62,7 @@
 #define TPS23881_REG_SRAM_DATA 0x61
 
 #define TPS23881_UV_STEP       3662
-#define TPS23881_NA_STEP       70190
+#define TPS23881_NA_STEP       89500
 #define TPS23881_MW_STEP       500
 #define TPS23881_MIN_PI_PW_LIMIT_MW    2000