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| author | Prashant Malani <pmalani@chromium.org> | 2021-04-20 10:10:09 -0700 |
|---|---|---|
| committer | Enric Balletbo i Serra <enric.balletbo@collabora.com> | 2021-04-20 19:35:42 +0200 |
| commit | 670160fea22c587b384d56698bbb661fa4801534 (patch) | |
| tree | 86cca202b3e4e586549f00420c6ab10c65827848 /drivers/platform | |
| parent | c6e939c63c80c26460b25cf1150ebe8396e8adcf (diff) | |
| download | linux-stable-670160fea22c587b384d56698bbb661fa4801534.tar.gz linux-stable-670160fea22c587b384d56698bbb661fa4801534.tar.bz2 linux-stable-670160fea22c587b384d56698bbb661fa4801534.zip | |
platform/chrome: cros_ec_typec: Track port role
Stash the currently reported port role in the port struct and add a
check for that too while determining whether to re-configure on-board
Type C switches (this deals with cases like role swaps where the mux
flags don't change, but the port role does).
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Suggested-by: Nikunj A. Dadhania <nikunj.dadhania@intel.com>
Tested-by: Deepti Deshatty <deepti.deshatty@intel.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20210420171008.3829549-1-pmalani@chromium.org
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/chrome/cros_ec_typec.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c index d3df1717a5fd..1a06b8c80f80 100644 --- a/drivers/platform/chrome/cros_ec_typec.c +++ b/drivers/platform/chrome/cros_ec_typec.c @@ -58,6 +58,7 @@ struct cros_typec_port { /* Variables keeping track of switch state. */ struct typec_mux_state state; uint8_t mux_flags; + uint8_t role; /* Port alt modes. */ struct typec_altmode p_altmode[CROS_EC_ALTMODE_MAX]; @@ -995,10 +996,12 @@ static int cros_typec_port_update(struct cros_typec_data *typec, int port_num) } /* No change needs to be made, let's exit early. */ - if (typec->ports[port_num]->mux_flags == mux_resp.flags) + if (typec->ports[port_num]->mux_flags == mux_resp.flags && + typec->ports[port_num]->role == resp.role) return 0; typec->ports[port_num]->mux_flags = mux_resp.flags; + typec->ports[port_num]->role = resp.role; ret = cros_typec_configure_mux(typec, port_num, mux_resp.flags, &resp); if (ret) dev_warn(typec->dev, "Configure muxes failed, err = %d\n", ret); |