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 1/9] i2c: xiic: Remove the disabling of interrupts
Date: Wed, 17 Jun 2015 20:48:11 +0530 [thread overview]
Message-ID: <1434554299-23443-2-git-send-email-shubhraj@xilinx.com> (raw)
In-Reply-To: <1434554299-23443-1-git-send-email-shubhraj-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
Currently the interrupts are disabled at the start of the
isr and enabled at the end of the isr. Remove the same.
In case the slave device NACKs the transaction while in the isr
the transfer will continue and the NACK interrupt will arrive
only after the isr is serviced.
Signed-off-by: Shubhrajyoti Datta <shubhraj-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
---
drivers/i2c/busses/i2c-xiic.c | 3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 4dda23f..912780a 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -604,14 +604,11 @@ static irqreturn_t xiic_isr(int irq, void *dev_id)
struct xiic_i2c *i2c = dev_id;
spin_lock(&i2c->lock);
- /* disable interrupts globally */
- xiic_setreg32(i2c, XIIC_DGIER_OFFSET, 0);
dev_dbg(i2c->adap.dev.parent, "%s entry\n", __func__);
xiic_process(i2c);
- xiic_setreg32(i2c, XIIC_DGIER_OFFSET, XIIC_GINTR_ENABLE_MASK);
spin_unlock(&i2c->lock);
return IRQ_HANDLED;
--
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 ` Shubhrajyoti Datta [this message]
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 ` [PATCHv2 3/9] i2c: xiic: Do not reset controller before every transfer Shubhrajyoti Datta
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1434554299-23443-2-git-send-email-shubhraj@xilinx.com \
--to=shubhrajyoti.datta-gjffaj9ahvfqt0dzr+alfa@public.gmane.org \
--cc=linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=shubhraj-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.