Clock notifiers are only available when CONFIG_COMMON_CLK is enabled. Hence all notifier related code has to be protected by corresponsing ifdefs. Signed-off-by: Soren Brinkmann <soren.brinkmann@xxxxxxxxxx> --- Alternatively this could be fixed by adding a dependency on COMMON_CLK in Kconfig. That would keep the code cleaner, but limit this driver to platforms using the CCF. --- drivers/tty/serial/xilinx_uartps.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index ca4a2f1fbca9..e46e9f3f19b9 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -411,6 +411,7 @@ static unsigned int xuartps_set_baud_rate(struct uart_port *port, return calc_baud; } +#ifdef CONFIG_COMMON_CLK /** * xuartps_clk_notitifer_cb - Clock notifier callback * @nb: Notifier block @@ -504,6 +505,7 @@ static int xuartps_clk_notifier_cb(struct notifier_block *nb, return NOTIFY_DONE; } } +#endif /*----------------------Uart Operations---------------------------*/ @@ -1380,11 +1382,13 @@ static int xuartps_probe(struct platform_device *pdev) goto err_out_clk_disable; } +#ifdef CONFIG_COMMON_CLK xuartps_data->clk_rate_change_nb.notifier_call = xuartps_clk_notifier_cb; if (clk_notifier_register(xuartps_data->refclk, &xuartps_data->clk_rate_change_nb)) dev_warn(&pdev->dev, "Unable to register clock notifier.\n"); +#endif /* Initialize the port structure */ port = xuartps_get_port(); @@ -1415,8 +1419,10 @@ static int xuartps_probe(struct platform_device *pdev) } err_out_notif_unreg: +#ifdef CONFIG_COMMON_CLK clk_notifier_unregister(xuartps_data->refclk, &xuartps_data->clk_rate_change_nb); +#endif err_out_clk_disable: clk_disable_unprepare(xuartps_data->refclk); err_out_clk_dis_aper: @@ -1438,8 +1444,10 @@ static int xuartps_remove(struct platform_device *pdev) int rc; /* Remove the xuartps port from the serial core */ +#ifdef CONFIG_COMMON_CLK clk_notifier_unregister(xuartps_data->refclk, &xuartps_data->clk_rate_change_nb); +#endif rc = uart_remove_one_port(&xuartps_uart_driver, port); port->mapbase = 0; clk_disable_unprepare(xuartps_data->refclk); -- 1.8.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
