[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)
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2.29.2