diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0843-serial-8250-bcm2835aux-defer-if-clock-is-zero.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0843-serial-8250-bcm2835aux-defer-if-clock-is-zero.patch | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0843-serial-8250-bcm2835aux-defer-if-clock-is-zero.patch b/target/linux/bcm27xx/patches-5.4/950-0843-serial-8250-bcm2835aux-defer-if-clock-is-zero.patch deleted file mode 100644 index b421ba9cdc..0000000000 --- a/target/linux/bcm27xx/patches-5.4/950-0843-serial-8250-bcm2835aux-defer-if-clock-is-zero.patch +++ /dev/null @@ -1,28 +0,0 @@ -From 80163961af8e31a2045271c5a12adaae620445e1 Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.com> -Date: Thu, 2 Jul 2020 13:53:20 +0100 -Subject: [PATCH] serial: 8250: bcm2835aux - defer if clock is zero - -See: https://github.com/raspberrypi/linux/issues/3700 - -Signed-off-by: Phil Elwell <phil@raspberrypi.com> ---- - drivers/tty/serial/8250/8250_bcm2835aux.c | 7 +++++++ - 1 file changed, 7 insertions(+) - ---- a/drivers/tty/serial/8250/8250_bcm2835aux.c -+++ b/drivers/tty/serial/8250/8250_bcm2835aux.c -@@ -92,6 +92,13 @@ static int bcm2835aux_serial_probe(struc - */ - data->uart.port.uartclk = clk_get_rate(data->clk) * 2; - -+ /* The clock is only queried at probe time, which means we get one shot -+ * at this. A zero clock is never going to work and is almost certainly -+ * due to a parent not being ready, so prefer to defer. -+ */ -+ if (!data->uart.port.uartclk) -+ return -EPROBE_DEFER; -+ - /* register the port */ - ret = serial8250_register_8250_port(&data->uart); - if (ret < 0) { |