[PATCH RFC 15/22] usb: typec: tipd: Update partner identity when power status was updated

[Sven Peter]

From: Hector Martin <marcan at marcan.st>

Whenever the power status is changed make sure to also update the
partner identity to be able to detect changes once de-bouncing and mode
changes arre added for CD321x.

Signed-off-by: Hector Martin <marcan at marcan.st>
Signed-off-by: Sven Peter <sven at kernel.org>
---
 drivers/usb/typec/tipd/core.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
index e369897bfa017ca96e559a8bd70da11207d4513a..b0fdd4dddd3a490dbc2a8ced21ea0803658f36a7 100644
--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -636,9 +636,16 @@ static irqreturn_t cd321x_interrupt(int irq, void *data)
 	if (!tps6598x_read_status(tps, &status))
 		goto err_unlock;
 
-	if (event & APPLE_CD_REG_INT_POWER_STATUS_UPDATE)
+	if (event & APPLE_CD_REG_INT_POWER_STATUS_UPDATE) {
 		if (!tps6598x_read_power_status(tps))
 			goto err_unlock;
+		if (TPS_POWER_STATUS_PWROPMODE(tps->pwr_status) == TYPEC_PWR_MODE_PD) {
+			if (tps6598x_read_partner_identity(tps)) {
+				dev_err(tps->dev, "%s: failed to partner identity\n", __func__);
+				tps->partner_identity = (struct usb_pd_identity) {0};
+			}
+		}
+	}
 
 	if (event & APPLE_CD_REG_INT_DATA_STATUS_UPDATE)
 		if (!tps->data->read_data_status(tps))

-- 
2.34.1