USB: typec: tsp6598x: Add cmd timeout and response delay

Some commands in tps25750 take longer than 1 second
to complete, and some responses need some delay before
the result becomes available.
Signed-off-by: Abdel Alkuor <abdelalkuor@geotab.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20231003155842.57313-3-alkuor@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/typec/tipd/core.c

@@ -282,9 +282,10 @@ static void tps6598x_disconnect(struct tps6598x *tps, u32 status)
 	power_supply_changed(tps->psy);
 }
 
-static int tps6598x_exec_cmd(struct tps6598x *tps, const char *cmd,
+static int tps6598x_exec_cmd_tmo(struct tps6598x *tps, const char *cmd,
 			     size_t in_len, u8 *in_data,
-			     size_t out_len, u8 *out_data)
+			     size_t out_len, u8 *out_data,
+			     u32 cmd_timeout_ms, u32 res_delay_ms)
 {
 	unsigned long timeout;
 	u32 val;
@@ -307,8 +308,7 @@ static int tps6598x_exec_cmd(struct tps6598x *tps, const char *cmd,
 	if (ret < 0)
 		return ret;
 
-	/* XXX: Using 1s for now, but it may not be enough for every command. */
-	timeout = jiffies + msecs_to_jiffies(1000);
+	timeout = jiffies + msecs_to_jiffies(cmd_timeout_ms);
 
 	do {
 		ret = tps6598x_read32(tps, TPS_REG_CMD1, &val);
@@ -321,6 +321,9 @@ static int tps6598x_exec_cmd(struct tps6598x *tps, const char *cmd,
 			return -ETIMEDOUT;
 	} while (val);
 
+	/* some commands require delay for the result to be available */
+	mdelay(res_delay_ms);
+
 	if (out_len) {
 		ret = tps6598x_block_read(tps, TPS_REG_DATA1,
 					  out_data, out_len);
@@ -345,6 +348,14 @@ static int tps6598x_exec_cmd(struct tps6598x *tps, const char *cmd,
 	return 0;
 }
 
+static int tps6598x_exec_cmd(struct tps6598x *tps, const char *cmd,
+			     size_t in_len, u8 *in_data,
+			     size_t out_len, u8 *out_data)
+{
+	return tps6598x_exec_cmd_tmo(tps, cmd, in_len, in_data,
+				     out_len, out_data, 1000, 0);
+}
+
 static int tps6598x_dr_set(struct typec_port *port, enum typec_data_role role)
 {
 	const char *cmd = (role == TYPEC_DEVICE) ? "SWUF" : "SWDF";