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authorNicholas Piggin <npiggin@gmail.com>2018-05-01 00:55:58 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2018-08-20 20:19:54 +1000
commit95b861a76c1ded3e89d33a3d9f4552dce22e9875 (patch)
tree407243710c5ee124e906a36750246c30f6dc957b /drivers/tty
parent997dd26cb3c8b7c9b8765751cc1491ad33b2024f (diff)
downloadlinux-95b861a76c1ded3e89d33a3d9f4552dce22e9875.tar.bz2
powerpc/powernv: provide a console flush operation for opal hvc driver
Provide the flush hv_op for the opal hvc driver. This will flush the firmware console buffers without spinning with interrupts disabled. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/hvc/hvc_opal.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c
index f631f8bee308..77baf895108f 100644
--- a/drivers/tty/hvc/hvc_opal.c
+++ b/drivers/tty/hvc/hvc_opal.c
@@ -52,6 +52,7 @@ static u32 hvc_opal_boot_termno;
static const struct hv_ops hvc_opal_raw_ops = {
.get_chars = opal_get_chars,
.put_chars = opal_put_chars,
+ .flush = opal_flush_chars,
.notifier_add = notifier_add_irq,
.notifier_del = notifier_del_irq,
.notifier_hangup = notifier_hangup_irq,
@@ -141,6 +142,7 @@ static int hvc_opal_hvsi_tiocmset(struct hvc_struct *hp, unsigned int set,
static const struct hv_ops hvc_opal_hvsi_ops = {
.get_chars = hvc_opal_hvsi_get_chars,
.put_chars = hvc_opal_hvsi_put_chars,
+ .flush = opal_flush_chars,
.notifier_add = hvc_opal_hvsi_open,
.notifier_del = hvc_opal_hvsi_close,
.notifier_hangup = hvc_opal_hvsi_hangup,