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soc: qcom: pmic_glink_altmode: handle safe mode when disconnect

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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>
This commit is contained in:
Neil Armstrong 2023-06-19 10:07:13 +02:00 committed by Bjorn Andersson
parent 668e08c2e7
commit 1beecfe68f
1 changed files with 17 additions and 1 deletions
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18
drivers/soc/qcom/pmic_glink_altmode.c
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@ -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