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mailbox: zynqmp-ipi: Make polling period configurable

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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>
This commit is contained in:
Ben Levinsky 2024-07-18 13:40:57 -07:00 committed by Jassi Brar
parent cbf5009580
commit 0e3bb6ee88
1 changed files with 8 additions and 1 deletions
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9
drivers/mailbox/zynqmp-ipi-mailbox.c
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@ -64,6 +64,13 @@
#define MAX_SGI 16 #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 * struct zynqmp_ipi_mchan - Description of a Xilinx ZynqMP IPI mailbox channel
* @is_opened: indicate if the IPI channel is opened * @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->num_chans = 2;
mbox->txdone_irq = false; mbox->txdone_irq = false;
mbox->txdone_poll = true; mbox->txdone_poll = true;
mbox->txpoll_period = 5; mbox->txpoll_period = tx_poll_period;
mbox->of_xlate = zynqmp_ipi_of_xlate; mbox->of_xlate = zynqmp_ipi_of_xlate;
chans = devm_kzalloc(mdev, 2 * sizeof(*chans), GFP_KERNEL); chans = devm_kzalloc(mdev, 2 * sizeof(*chans), GFP_KERNEL);
if (!chans) if (!chans)