From: Sowjanya Komatineni <skomatineni@nvidia.com>
To: <thierry.reding@gmail.com>, <jonathanh@nvidia.com>,
<digetx@gmail.com>, <wsa@the-dreams.de>, <skomatineni@nvidia.com>
Cc: <linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-i2c@vger.kernel.org>
Subject: [PATCH v3] Create i2c_writesl_vi() to use with VI I2C
Date: Tue, 12 Jan 2021 11:02:40 -0800 [thread overview]
Message-ID: <1610478161-4877-1-git-send-email-skomatineni@nvidia.com> (raw)
Patch in this series is to fix known hardware bug with VI I2C
controller where immediate multiple writes to TX_FIFO gets stuck
resulting in VI I2C controller to be in bad state.
Delta between patch versions:
[v3]: Includes v2 feedback
- uses relaxed writel and readl
- avoids type casting on data buffer during i2c_writesl_vi()
- updated comment to clearly mention this as workaround to
known hardware bug with VI I2C.
[v2]: Creates i2c_writesl_vi() for vi i2c based on v1 feedback.
[v1]: Updates i2c_writesl() to use writel() followed by i2c_readl().
Sowjanya Komatineni (1):
i2c: tegra: Create i2c_writesl_vi() to use with VI I2C for filling TX
FIFO
drivers/i2c/busses/i2c-tegra.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
--
2.7.4
next reply other threads:[~2021-01-12 19:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-12 19:02 Sowjanya Komatineni [this message]
2021-01-12 19:02 ` [PATCH v3] i2c: tegra: Create i2c_writesl_vi() to use with VI I2C for filling TX FIFO Sowjanya Komatineni
2021-01-12 19:17 ` Dmitry Osipenko
2021-01-15 15:57 ` Thierry Reding
2021-01-17 11:24 ` 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=1610478161-4877-1-git-send-email-skomatineni@nvidia.com \
--to=skomatineni@nvidia.com \
--cc=digetx@gmail.com \
--cc=jonathanh@nvidia.com \
--cc=linux-i2c@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=thierry.reding@gmail.com \
--cc=wsa@the-dreams.de \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).