The patch titled
serial: MPSC: set baudrate when BRG divider is set.
has been added to the -mm tree. Its filename is
serial-mpsc-set-baudrate-when-brg-divider-is-set.patch
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------------------------------------------------------
Subject: serial: MPSC: set baudrate when BRG divider is set.
From: Mark A. Greer <mgreer@xxxxxxxxxx>
The clock to generate the desired baudrate with the MPSC is first divided
by the Baud Rate Generator (BRG) and then by the MPSC itself. So, when the
BRG divider is changed, the MPSC divider must also be changed to generate
the correct baudrate. During MPSC initialization, the BRG divider is
changed but the MPSC divider isn't changed until much later. This results
in some printk's coming out garbled. To fix that, set the MPSC divider at
the same time that the BRG divider is changed.
Signed-off-by: Mark A. Greer <mgreer@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/serial/mpsc.c | 1 +
1 file changed, 1 insertion(+)
diff -puN drivers/serial/mpsc.c~serial-mpsc-set-baudrate-when-brg-divider-is-set drivers/serial/mpsc.c
--- a/drivers/serial/mpsc.c~serial-mpsc-set-baudrate-when-brg-divider-is-set
+++ a/drivers/serial/mpsc.c
@@ -612,6 +612,7 @@ static void mpsc_hw_init(struct mpsc_por
/* No preamble, 16x divider, low-latency, */
writel(0x04400400, pi->mpsc_base + MPSC_MMCRH);
+ mpsc_set_baudrate(pi, pi->default_baud);
if (pi->mirror_regs) {
pi->MPSC_CHR_1_m = 0;
_
Patches currently in -mm which might be from mgreer@xxxxxxxxxx are
git-arm.patch
git-powerpc.patch
serial-mpsc-set-baudrate-when-brg-divider-is-set.patch
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