Re: [wpan-next v2 3/9] net: ieee802154: mcr20a: Fix lifs/sifs periods

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Hello Xue.

You are still listed as maintainer for the mcr20a driver, thus this mail.

On 20.01.22 12:21, Miquel Raynal wrote:
These periods are expressed in time units (microseconds) while 40 and 12
are the number of symbol durations these periods will last. We need to
multiply them both with phy->symbol_duration in order to get these
values in microseconds.

Fixes: 8c6ad9cc5157 ("ieee802154: Add NXP MCR20A IEEE 802.15.4 transceiver driver")
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
---
  drivers/net/ieee802154/mcr20a.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ieee802154/mcr20a.c b/drivers/net/ieee802154/mcr20a.c
index 8dc04e2590b1..383231b85464 100644
--- a/drivers/net/ieee802154/mcr20a.c
+++ b/drivers/net/ieee802154/mcr20a.c
@@ -976,8 +976,8 @@ static void mcr20a_hw_setup(struct mcr20a_local *lp)
  	dev_dbg(printdev(lp), "%s\n", __func__);
phy->symbol_duration = 16;
-	phy->lifs_period = 40;
-	phy->sifs_period = 12;
+	phy->lifs_period = 40 * phy->symbol_duration;
+	phy->sifs_period = 12 * phy->symbol_duration;

To me this looks correct and I would go ahead and apply it. Xue, if you disagree please reply and explain why.

regards
Stefan Schmidt



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