android_kernel_motorola_sm6375/drivers/i3c
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Wolfram Sang 1518eb0824 i3c: don't fail if GETHDRCAP is unsupported
[ Upstream commit 447270cdb41b1c8c3621bb14b93a6749f942556e ]

'I3C_BCR_HDR_CAP' is still spec v1.0 and has been renamed to 'advanced
capabilities' in v1.1 onwards. The ST pressure sensor LPS22DF does not
have HDR, but has the 'advanced cap' bit set. The core still wants to
get additional information using the CCC 'GETHDRCAP' (or GETCAPS in v1.1
onwards). Not all controllers support this CCC and will notify the upper
layers about it. For instantiating the device, we can ignore this
unsupported CCC as standard communication will work. Without this patch,
the device will not be instantiated at all.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250704204524.6124-1-wsa+renesas@sang-engineering.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-28 16:21:29 +02:00
..
master i3c: master: cdns: Update maximum prescaler value for i2c clock 2024-02-23 08:25:02 +01:00
device.c
internals.h i3c: add missing include to internal header 2025-08-28 16:21:28 +02:00
Kconfig
Makefile
master.c i3c: don't fail if GETHDRCAP is unsupported 2025-08-28 16:21:29 +02:00