[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20230601-topic-sm8550-upstream-type-c-v5-1-9221cd300903@linaro.org>
Date: Mon, 19 Jun 2023 10:07:13 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org,
Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH v5 1/6] 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@...aro.org>
---
drivers/soc/qcom/pmic_glink_altmode.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/qcom/pmic_glink_altmode.c b/drivers/soc/qcom/pmic_glink_altmode.c
index df48fbea4b68..007d308e2f15 100644
--- a/drivers/soc/qcom/pmic_glink_altmode.c
+++ b/drivers/soc/qcom/pmic_glink_altmode.c
@@ -173,6 +173,20 @@ 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);
@@ -180,7 +194,9 @@ 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
--
2.34.1
Powered by blists - more mailing lists