From: Shubhrajyoti Datta <shubhrajyoti.datta-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
To: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Shubhrajyoti Datta <shubhraj-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
Subject: [PATCHv2 3/9] i2c: xiic: Do not reset controller before every transfer
Date: Wed, 17 Jun 2015 20:48:13 +0530 [thread overview]
Message-ID: <1434554299-23443-4-git-send-email-shubhraj@xilinx.com> (raw)
In-Reply-To: <1434554299-23443-1-git-send-email-shubhraj-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
Currently before every transfer the controller is reinitialised.
We are already resetting the controller upon errors so upon every
transfer is a performance kill.
Remove the same.
Signed-off-by: Shubhrajyoti Datta <shubhraj-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
---
drivers/i2c/busses/i2c-xiic.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 1a6e637..92ea52a 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -667,7 +667,6 @@ static void xiic_start_xfer(struct xiic_i2c *i2c)
unsigned long flags;
spin_lock_irqsave(&i2c->lock, flags);
- xiic_reinit(i2c);
/* disable interrupts globally */
xiic_setreg32(i2c, XIIC_DGIER_OFFSET, 0);
spin_unlock_irqrestore(&i2c->lock, flags);
--
1.7.1
next prev parent reply other threads:[~2015-06-17 15:18 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-17 15:18 [PATCHv2 0/9] i2c: xiic: cleanups Shubhrajyoti Datta
[not found] ` <1434554299-23443-1-git-send-email-shubhraj-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
2015-06-17 15:18 ` [PATCHv2 1/9] i2c: xiic: Remove the disabling of interrupts Shubhrajyoti Datta
2015-06-17 15:18 ` [PATCHv2 2/9] i2c: xiic: move the xiic_process to thread context Shubhrajyoti Datta
[not found] ` <1434554299-23443-3-git-send-email-shubhraj-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
2015-07-09 17:31 ` Wolfram Sang
2015-07-10 5:08 ` Shubhrajyoti Datta
[not found] ` <CAKfKVtGOxWU-66fQSd8D6Ue0Si0koQF-CrR0pVZ8RupMNQ=-GQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-07-10 7:53 ` Wolfram Sang
2015-07-13 6:28 ` Shubhrajyoti Datta
2015-06-17 15:18 ` Shubhrajyoti Datta [this message]
2015-06-17 15:18 ` [PATCHv2 4/9] i2c: xiic: Remove the disabling of interrupts Shubhrajyoti Datta
2015-06-17 15:18 ` [PATCHv2 5/9] i2c: xiic: Remove busy loop while waiting for bus busy Shubhrajyoti Datta
2015-06-17 15:18 ` [PATCHv2 6/9] i2c: xiic: Add a debug msg in case of timeout Shubhrajyoti Datta
[not found] ` <1434554299-23443-7-git-send-email-shubhraj-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
2015-07-09 17:29 ` Wolfram Sang
2015-07-10 5:11 ` Shubhrajyoti Datta
2015-06-17 15:18 ` [PATCHv2 7/9] i2c: xiic: Remove the Addressed as slave interrupt Shubhrajyoti Datta
2015-06-17 15:18 ` [PATCHv2 8/9] i2c: xiic: Service all interrupts in isr Shubhrajyoti Datta
2015-06-17 15:18 ` [PATCHv2 9/9] i2c: xiic: Do not continue in case of errors in Rx Shubhrajyoti Datta
2015-07-09 17:35 ` [PATCHv2 0/9] i2c: xiic: cleanups Wolfram Sang
2015-07-10 5:13 ` Shubhrajyoti Datta
[not found] ` <CAKfKVtE5qfQjxJNDOBXfVLncVYXJjgfXe6Anb6M=dSFkHsTt8w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-07-14 11:59 ` Wolfram Sang
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