diff mbox series

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

Message ID 20220120112115.448077-4-miquel.raynal@bootlin.com (mailing list archive)
State Superseded
Headers show
Series ieee802154: A bunch of fixes | expand

Commit Message

Miquel Raynal Jan. 20, 2022, 11:21 a.m. UTC
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@bootlin.com>
---
 drivers/net/ieee802154/mcr20a.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Stefan Schmidt Jan. 21, 2022, 4:01 p.m. UTC | #1
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@bootlin.com>
> ---
>   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
diff mbox series

Patch

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;
 
 	hw->flags = IEEE802154_HW_TX_OMIT_CKSUM |
 			IEEE802154_HW_AFILT |