From: Alexander Aring Date: Wed, 5 Nov 2014 19:51:27 +0000 (+0100) Subject: at86rf230: add force slotted operation bit X-Git-Tag: v3.19-rc1~32^2~17^2~6^2~197 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=05e3f2f351d3c6f19a81ff7eb0a661ffcd4b19b7;p=platform%2Fkernel%2Flinux-exynos.git at86rf230: add force slotted operation bit This patch adds a force setting of slotted operation bit. The atben chips sometimes set these bit. The reason is unknown. Nevertheless we don't support slotted operation so we set this bit now force while probing. Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann --- diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index a6db768..a3cc7d9 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -1358,6 +1358,14 @@ static int at86rf230_hw_init(struct at86rf230_local *lp) return -EINVAL; } + /* Force setting slotted operation bit to 0. Sometimes the atben + * sets this bit and I don't know why. We set this always force + * to zero while probing. + */ + rc = at86rf230_write_subreg(lp, SR_SLOTTED_OPERATION, 0); + if (rc) + return rc; + return 0; }