diff mbox series

[v9,02/22] riscv: Fix sifive serial driver

Message ID 20201213081016.179192-3-damien.lemoal@wdc.com
State Accepted
Commit 1f1496a923b6ba16679074fe77100e1b53cdb880
Headers show
Series RISC-V Kendryte K210 support improvements | expand

Commit Message

Damien Le Moal Dec. 13, 2020, 8:09 a.m. UTC 
Setup the port uartclk in sifive_serial_probe() so that the base baud
rate is correctly printed during device probe instead of always showing
"0".  I.e. the probe message is changed from

38000000.serial: ttySIF0 at MMIO 0x38000000 (irq = 1,
base_baud = 0) is a SiFive UART v0

to the correct:

38000000.serial: ttySIF0 at MMIO 0x38000000 (irq = 1,
base_baud = 115200) is a SiFive UART v0

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
---
 drivers/tty/serial/sifive.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/tty/serial/sifive.c b/drivers/tty/serial/sifive.c
index 13eadcb8aec4..214bf3086c68 100644
--- a/drivers/tty/serial/sifive.c
+++ b/drivers/tty/serial/sifive.c
@@ -999,6 +999,7 @@  static int sifive_serial_probe(struct platform_device *pdev)
 	/* Set up clock divider */
 	ssp->clkin_rate = clk_get_rate(ssp->clk);
 	ssp->baud_rate = SIFIVE_DEFAULT_BAUD_RATE;
+	ssp->port.uartclk = ssp->baud_rate * 16;
 	__ssp_update_div(ssp);
 
 	platform_set_drvdata(pdev, ssp);