From 8fde85b609273f8389178d4c0d066390a0e0773d Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Sun, 30 Oct 2022 14:56:10 -0500 Subject: [PATCH 21/90] serial: ns16550: Enable clocks during probe If the UART bus or baud clock has a gate, it must be enabled before the UART can be used. Signed-off-by: Samuel Holland --- drivers/serial/ns16550.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/serial/ns16550.c +++ b/drivers/serial/ns16550.c @@ -506,6 +506,7 @@ int ns16550_serial_probe(struct udevice struct ns16550_plat *plat = dev_get_plat(dev); struct ns16550 *const com_port = dev_get_priv(dev); struct reset_ctl_bulk reset_bulk; + struct clk_bulk clk_bulk; fdt_addr_t addr; int ret; @@ -524,6 +525,10 @@ int ns16550_serial_probe(struct udevice if (!ret) reset_deassert_bulk(&reset_bulk); + ret = clk_get_bulk(dev, &clk_bulk); + if (!ret) + clk_enable_bulk(&clk_bulk); + com_port->plat = dev_get_plat(dev); ns16550_init(com_port, -1);