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| author | Neil Armstrong <neil.armstrong@linaro.org> | 2023-06-19 10:07:13 +0200 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2023-07-31 14:19:06 -0700 |
| commit | 1beecfe68f802e5d4218bb7c5a728f2f38c979c7 (patch) | |
| tree | 4f19fd423d50f29a2552d4bb74007a425d2db50b /drivers/soc | |
| parent | 668e08c2e7b02124da573e29a67e013627ebf9ea (diff) | |
| download | lwn-1beecfe68f802e5d4218bb7c5a728f2f38c979c7.tar.gz lwn-1beecfe68f802e5d4218bb7c5a728f2f38c979c7.zip | |
soc: qcom: pmic_glink_altmode: handle safe mode when disconnect
On some Qcom SoCs, the Altmode event mode is set to 0xff when
the Type-C port is disconnected.
Handle this specific mode and translate it as the SAFE mode.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230601-topic-sm8550-upstream-type-c-v5-1-9221cd300903@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/qcom/pmic_glink_altmode.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/soc/qcom/pmic_glink_altmode.c b/drivers/soc/qcom/pmic_glink_altmode.c index 1dedacc52aea..297d5821c784 100644 --- a/drivers/soc/qcom/pmic_glink_altmode.c +++ b/drivers/soc/qcom/pmic_glink_altmode.c @@ -174,6 +174,20 @@ static void pmic_glink_altmode_enable_usb(struct pmic_glink_altmode *altmode, dev_err(altmode->dev, "failed to switch mux to USB\n"); } +static void pmic_glink_altmode_safe(struct pmic_glink_altmode *altmode, + struct pmic_glink_altmode_port *port) +{ + int ret; + + port->state.alt = NULL; + port->state.data = NULL; + port->state.mode = TYPEC_STATE_SAFE; + + ret = typec_mux_set(port->typec_mux, &port->state); + if (ret) + dev_err(altmode->dev, "failed to switch mux to safe mode\n"); +} + static void pmic_glink_altmode_worker(struct work_struct *work) { struct pmic_glink_altmode_port *alt_port = work_to_altmode_port(work); @@ -181,7 +195,9 @@ static void pmic_glink_altmode_worker(struct work_struct *work) typec_switch_set(alt_port->typec_switch, alt_port->orientation); - if (alt_port->svid == USB_TYPEC_DP_SID) + if (alt_port->svid == USB_TYPEC_DP_SID && alt_port->mode == 0xff) + pmic_glink_altmode_safe(altmode, alt_port); + else if (alt_port->svid == USB_TYPEC_DP_SID) pmic_glink_altmode_enable_dp(altmode, alt_port, alt_port->mode, alt_port->hpd_state, alt_port->hpd_irq); else |