Commit 0e3bb6ee authored by Ben Levinsky's avatar Ben Levinsky Committed by Jassi Brar
Browse files

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: default avatarBen Levinsky <ben.levinsky@amd.com>
Acked-by: default avatarMichal Simek <michal.simek@amd.com>
Signed-off-by: default avatarJassi Brar <jassisinghbrar@gmail.com>
parent cbf50095

drivers/mailbox/zynqmp-ipi-mailbox.c

+8 −1
Original line number Diff line number Diff line
@@ -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)