Thread (19 messages) flat view 19 messages, 4 authors, 2021-04-14

Re: [PATCH v2 5/6] usb: typec: tcpm: Allow slow charging loops to comply to pSnkStby

From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: 2021-04-08 08:22:50
Also in: linux-usb, lkml

quoted
@@ -4047,9 +4053,12 @@ static void run_state_machine(struct tcpm_port *port)
 		break;
 	case SNK_DISCOVERY:
 		if (port->vbus_present) {
-			tcpm_set_current_limit(port,
-					       tcpm_get_current_limit(port),
-					       5000);
+			u32 current_lim = (!port->slow_charger_loop ||
+					   (tcpm_get_current_limit(port) <=
+					    PD_P_SNK_STDBY_MW / 5)) ?
+				tcpm_get_current_limit(port) :
+				PD_P_SNK_STDBY_MW / 5;
Here the use of the ternary operator is not appropriate. Please try to
clean that up somehow. Maybe something like this would be better?

                        u32 current_lim = tcpm_get_current_limit(port);

			if (port->slow_charger_loop || (current_lim < PD_P_SNK_STDBY_MW / 5))
				current_lim = PD_P_SNK_STDBY_MW / 5;
Sorry, I mean:

			if (port->slow_charger_loop || (current_lim > PD_P_SNK_STDBY_MW / 5))
				current_lim = PD_P_SNK_STDBY_MW / 5;

thanks,

-- 
heikki
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