platform/chrome: cros_ec_proto: Introduce cros_ec_read_features helper

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Extract the EC feature-reading logic from cros_ec_check_features() into
cros_ec_read_features() helper function.

Currently, cros_ec_check_features() swallows command transfer errors. By
isolating the transaction logic into an explicit helper that returns the
actual transfer error code, subsequent callers (such as the cros_ec_dev
driver during device probing) can catch a read error.

Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Acked-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://patch.msgid.link/20260608211518.2214740-2-akuchynski@chromium.org
Signed-off-by: Lee Jones <lee@kernel.org>

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Andrei Kuchynski 2026-06-08 21:15:17 +00:00 • committed by Lee Jones

parent dc59e4fea9

commit d6ae9f9b9b

2 changed files with 24 additions and 8 deletions

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30

drivers/platform/chrome/cros_ec_proto.c

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2

include/linux/platform_data/cros_ec_proto.h

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