serial: bcm283x_mu: make pending values more explicit
dm_serial_ops.pending should return the number of characters, not just a
valid C Boolean integer value. The existing code does already does this,
but only as an accident since BCM283X_MU_LSR_RX_READY happens to be
BIT(0). Enhance the code to be more explicit about the values it returns.
Suggested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
diff --git a/drivers/serial/serial_bcm283x_mu.c b/drivers/serial/serial_bcm283x_mu.c
index fc36bc0..7357bbf 100644
--- a/drivers/serial/serial_bcm283x_mu.c
+++ b/drivers/serial/serial_bcm283x_mu.c
@@ -116,9 +116,9 @@
if (input) {
WATCHDOG_RESET();
- return lsr & BCM283X_MU_LSR_RX_READY;
+ return (lsr & BCM283X_MU_LSR_RX_READY) ? 1 : 0;
} else {
- return !(lsr & BCM283X_MU_LSR_TX_IDLE);
+ return (lsr & BCM283X_MU_LSR_TX_IDLE) ? 0 : 1;
}
}