From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Sat, 13 Sep 2014 08:28:48 +0000 (+0200)
Subject: NFC: st21nfcb: Fix improper ndlc T2 management
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fa0daa02fb063ecef39b7d421c3d9c4109381dc2;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

NFC: st21nfcb: Fix improper ndlc T2 management

T2 was never started when sending a command.
Start it when sending a command for the first attempt
and stop it once we receive the answer.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/drivers/nfc/st21nfcb/ndlc.c b/drivers/nfc/st21nfcb/ndlc.c
index 83c97c36112b..e7bff8921d11 100644
--- a/drivers/nfc/st21nfcb/ndlc.c
+++ b/drivers/nfc/st21nfcb/ndlc.c
@@ -112,6 +112,10 @@ static void llt_ndlc_send_queue(struct llt_ndlc *ndlc)
 		ndlc->t1_active = true;
 		mod_timer(&ndlc->t1_timer, time_sent +
 			msecs_to_jiffies(NDLC_TIMER_T1));
+		/* start timer t2 for chip availability */
+		ndlc->t2_active = true;
+		mod_timer(&ndlc->t2_timer, time_sent +
+			msecs_to_jiffies(NDLC_TIMER_T2));
 	}
 }
 
@@ -207,7 +211,7 @@ static void llt_ndlc_sm_work(struct work_struct *work)
 		ndlc->t2_active = false;
 		ndlc->t1_active = false;
 		del_timer_sync(&ndlc->t1_timer);
-
+		del_timer_sync(&ndlc->t2_timer);
 		ndlc_close(ndlc);
 		ndlc->hard_fault = -EREMOTEIO;
 	}