platform/chrome: cros_ec_typec: Defer probe on missing EC parent
authorTomasz Michalec <tmichalec@google.com>
Tue, 10 Jun 2025 15:37:47 +0000 (17:37 +0200)
committerTzung-Bi Shih <tzungbi@kernel.org>
Wed, 11 Jun 2025 02:12:53 +0000 (02:12 +0000)
commit8866f4e557eba43e991f99711515217a95f62d2e
treebc1b0b9d05cec9a971191b3beaf437573ef4f0a0
parent19272b37aa4f83ca52bdf9c16d5d81bdd1354494
platform/chrome: cros_ec_typec: Defer probe on missing EC parent

If cros_typec_probe is called before EC device is registered,
cros_typec_probe will fail. It may happen when cros-ec-typec.ko is
loaded before EC bus layer module (e.g. cros_ec_lpcs.ko,
cros_ec_spi.ko).

Return -EPROBE_DEFER when cros_typec_probe doesn't get EC device, so
the probe function can be called again after EC device is registered.

Signed-off-by: Tomasz Michalec <tmichalec@google.com>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Link: https://lore.kernel.org/r/20250610153748.1858519-1-tmichalec@google.com
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
drivers/platform/chrome/cros_ec_typec.c