diff options
| author | Otto Pflüger <otto.pflueger@abscue.de> | 2026-01-10 16:43:38 +0100 |
|---|---|---|
| committer | Jassi Brar <jassisinghbrar@gmail.com> | 2026-02-01 18:59:52 -0600 |
| commit | 75df94d05fc03fd9d861eaf79ce10fbb7a548bd8 (patch) | |
| tree | fd4ad1a300e89675fd39aa5c92cc13183ac87bf1 | |
| parent | c6ff944003cf1b7be9ef5c9d868a42114bc6e867 (diff) | |
mailbox: sprd: mask interrupts that are not handled
To reduce the amount of spurious interrupts, disable the interrupts that
are not handled in this driver.
Signed-off-by: Otto Pflüger <otto.pflueger@abscue.de>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
| -rw-r--r-- | drivers/mailbox/sprd-mailbox.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/mailbox/sprd-mailbox.c b/drivers/mailbox/sprd-mailbox.c index 26256581a76a..565502904e1f 100644 --- a/drivers/mailbox/sprd-mailbox.c +++ b/drivers/mailbox/sprd-mailbox.c @@ -282,21 +282,19 @@ static int sprd_mbox_startup(struct mbox_chan *chan) /* Select outbox FIFO mode and reset the outbox FIFO status */ writel(0x0, priv->outbox_base + SPRD_MBOX_FIFO_RST); - /* Enable inbox FIFO overflow and delivery interrupt */ - val = readl(priv->inbox_base + SPRD_MBOX_IRQ_MSK); - val &= ~(SPRD_INBOX_FIFO_OVERFLOW_IRQ | SPRD_INBOX_FIFO_DELIVER_IRQ); + /* Enable inbox FIFO delivery interrupt */ + val = SPRD_INBOX_FIFO_IRQ_MASK; + val &= ~SPRD_INBOX_FIFO_DELIVER_IRQ; writel(val, priv->inbox_base + SPRD_MBOX_IRQ_MSK); /* Enable outbox FIFO not empty interrupt */ - val = readl(priv->outbox_base + SPRD_MBOX_IRQ_MSK); + val = SPRD_OUTBOX_FIFO_IRQ_MASK; val &= ~SPRD_OUTBOX_FIFO_NOT_EMPTY_IRQ; writel(val, priv->outbox_base + SPRD_MBOX_IRQ_MSK); /* Enable supplementary outbox as the fundamental one */ if (priv->supp_base) { writel(0x0, priv->supp_base + SPRD_MBOX_FIFO_RST); - val = readl(priv->supp_base + SPRD_MBOX_IRQ_MSK); - val &= ~SPRD_OUTBOX_FIFO_NOT_EMPTY_IRQ; writel(val, priv->supp_base + SPRD_MBOX_IRQ_MSK); } } |