Thread (33 messages) 33 messages, 4 authors, 2021-01-12

[net-next 13/19] can: tcan4x5x: add max_raw_{read,write} of 256

From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: 2021-01-07 09:51:33
Also in: netdev
Subsystem: can network drivers, mcan device driver, the rest · Maintainers: Marc Kleine-Budde, Vincent Mailhol, Markus Schneider-Pargmann, Linus Torvalds

The tcan4x5x chip support bulk read/write, but as the length field is only 8
bits wide, the maximum is 256. A length of 0 is treated as 256.

Reviewed-by: Dan Murphy <redacted>
Tested-by: Sean Nyekjaer <redacted>
Link: https://lore.kernel.org/r/20201215231746.1132907-14-mkl@pengutronix.de (local)
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/m_can/tcan4x5x-regmap.c | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/drivers/net/can/m_can/tcan4x5x-regmap.c b/drivers/net/can/m_can/tcan4x5x-regmap.c
index c6963437064c..f113881fb012 100644
--- a/drivers/net/can/m_can/tcan4x5x-regmap.c
+++ b/drivers/net/can/m_can/tcan4x5x-regmap.c
@@ -67,6 +67,8 @@ static const struct regmap_bus tcan4x5x_bus = {
 	.read = tcan4x5x_regmap_read,
 	.reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
 	.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
+	.max_raw_read = 256,
+	.max_raw_write = 256,
 };
 
 int tcan4x5x_regmap_init(struct tcan4x5x_priv *priv)
-- 
2.29.2

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