diff options
| author | Ben Levinsky <ben.levinsky@amd.com> | 2024-07-18 23:40:57 +0300 |
|---|---|---|
| committer | Jassi Brar <jassisinghbrar@gmail.com> | 2024-07-20 05:23:16 +0300 |
| commit | 0e3bb6ee88874fc052a6f7a8eb18463faea0a63d (patch) | |
| tree | 01e06682dd8023989e3a7d9500cba1ca674bbc97 /drivers/mailbox | |
| parent | cbf5009580c7c86e9822b3e675df1762ea0a5a0a (diff) | |
| download | linux-0e3bb6ee88874fc052a6f7a8eb18463faea0a63d.tar.xz | |
mailbox: zynqmp-ipi: Make polling period configurable
There are cases where remote that is acking mailbox message can take longer
than the default tx_poll_period value. Therefore, enable this to be mutable.
Added tx_poll_period field while inserting the module to set the
poll period for ack after sending mailbox message.
Signed-off-by: Ben Levinsky <ben.levinsky@amd.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Diffstat (limited to 'drivers/mailbox')
| -rw-r--r-- | drivers/mailbox/zynqmp-ipi-mailbox.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-ipi-mailbox.c index 4acf5612487c..521d08b9ab47 100644 --- a/drivers/mailbox/zynqmp-ipi-mailbox.c +++ b/drivers/mailbox/zynqmp-ipi-mailbox.c @@ -64,6 +64,13 @@ #define MAX_SGI 16 +/* + * Module parameters + */ +static int tx_poll_period = 5; +module_param_named(tx_poll_period, tx_poll_period, int, 0644); +MODULE_PARM_DESC(tx_poll_period, "Poll period waiting for ack after send."); + /** * struct zynqmp_ipi_mchan - Description of a Xilinx ZynqMP IPI mailbox channel * @is_opened: indicate if the IPI channel is opened @@ -537,7 +544,7 @@ static int zynqmp_ipi_mbox_probe(struct zynqmp_ipi_mbox *ipi_mbox, mbox->num_chans = 2; mbox->txdone_irq = false; mbox->txdone_poll = true; - mbox->txpoll_period = 5; + mbox->txpoll_period = tx_poll_period; mbox->of_xlate = zynqmp_ipi_of_xlate; chans = devm_kzalloc(mdev, 2 * sizeof(*chans), GFP_KERNEL); if (!chans) |