[linux-yocto] [PATCH 08/15] serial: 8250_port: remove legacy PM code

[Nilesh Bacchewar]

From: Andy Shevchenko <andriy.shevchenko at linux.intel.com>

Backport:
 - Upstream-Status: Pending.
 [https://bitbucket.org/andy-shev/linux/commits/beaec3129e338fd4b4538b6a11afdec64e025185?at=master]

Since the driver has been switched to use runtime PM, remove legacy PM code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
---
 drivers/tty/serial/8250/8250_port.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 880fb4c..f98559b 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -513,16 +513,12 @@ EXPORT_SYMBOL_GPL(serial8250_clear_and_reinit_fifos);
 
 void serial8250_rpm_get(struct uart_8250_port *p)
 {
-	if (!(p->capabilities & UART_CAP_RPM))
-		return;
 	pm_runtime_get_sync(p->port.dev);
 }
 EXPORT_SYMBOL_GPL(serial8250_rpm_get);
 
 void serial8250_rpm_put(struct uart_8250_port *p)
 {
-	if (!(p->capabilities & UART_CAP_RPM))
-		return;
 	pm_runtime_mark_last_busy(p->port.dev);
 	pm_runtime_put_autosuspend(p->port.dev);
 }
@@ -537,9 +533,6 @@ void serial8250_rpm_get_tx(struct uart_8250_port *p)
 {
 	unsigned char rpm_active;
 
-	if (!(p->capabilities & UART_CAP_RPM))
-		return;
-
 	rpm_active = xchg(&p->rpm_tx_active, 1);
 	if (rpm_active)
 		return;
@@ -556,9 +549,6 @@ void serial8250_rpm_put_tx(struct uart_8250_port *p)
 {
 	unsigned char rpm_active;
 
-	if (!(p->capabilities & UART_CAP_RPM))
-		return;
-
 	rpm_active = xchg(&p->rpm_tx_active, 0);
 	if (!rpm_active)
 		return;
@@ -1508,8 +1498,6 @@ void serial8250_tx_chars(struct uart_8250_port *up)
 	 * HW can go idle. So we get here once again with empty FIFO and disable
 	 * the interrupt and RPM in __stop_tx()
 	 */
-	if (uart_circ_empty(xmit) && !(up->capabilities & UART_CAP_RPM))
-		__stop_tx(up);
 }
 EXPORT_SYMBOL_GPL(serial8250_tx_chars);
 
-- 
1.9.1