From: Billy Tsai <billy_tsai@aspeedtech.com>
To: <alexandre.belloni@bootlin.com>, <pgaj@cadence.com>,
<miquel.raynal@bootlin.com>, <conor.culhane@silvaco.com>,
<aniketmaurya@google.com>, <billy_tsai@aspeedtech.com>,
<Shyam-sundar.S-k@amd.com>, <jarkko.nikula@linux.intel.com>,
<wsa+renesas@sang-engineering.com>, <xiaopei01@kylinos.cn>,
<Guruvendra.Punugupati@amd.com>, <linux-i3c@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH v1 2/2] i3c: mipi-i3c-hci: Use DMA-safe buffer for I2C transfers
Date: Tue, 21 Jan 2025 19:07:56 +0800 [thread overview]
Message-ID: <20250121110756.214714-2-billy_tsai@aspeedtech.com> (raw)
In-Reply-To: <20250121110756.214714-1-billy_tsai@aspeedtech.com>
The i2c_get_dma_safe_msg_buf function is used to ensure safe handling of
I2C messages in HCI DMA mode.
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
---
drivers/i3c/master/mipi-i3c-hci/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index a408feac3e9e..3567cd566339 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -382,7 +382,7 @@ static int i3c_hci_i2c_xfers(struct i2c_dev_desc *dev,
return -ENOMEM;
for (i = 0; i < nxfers; i++) {
- xfer[i].data = i2c_xfers[i].buf;
+ xfer[i].data = i2c_get_dma_safe_msg_buf(&i2c_xfers[i], 1);
xfer[i].data_len = i2c_xfers[i].len;
xfer[i].rnw = i2c_xfers[i].flags & I2C_M_RD;
hci->cmd->prep_i2c_xfer(hci, dev, &xfer[i]);
--
2.25.1
next prev parent reply other threads:[~2025-01-21 11:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-21 11:07 [PATCH v1 1/2] i3c: Remove the const qualifier from i2c_msg pointer in i2c_xfers API Billy Tsai
2025-01-21 11:07 ` Billy Tsai [this message]
2025-01-21 22:19 ` [PATCH v1 2/2] i3c: mipi-i3c-hci: Use DMA-safe buffer for I2C transfers Wolfram Sang
2025-01-23 10:23 ` Billy Tsai
2025-01-22 7:11 ` Mukesh Kumar Savaliya
2025-01-22 8:28 ` Jarkko Nikula
2025-01-21 22:18 ` [PATCH v1 1/2] i3c: Remove the const qualifier from i2c_msg pointer in i2c_xfers API Wolfram Sang
2025-01-22 7:11 ` Mukesh Kumar Savaliya
2025-01-22 7:21 ` Wolfram Sang
2025-01-22 8:42 ` Thomas Weißschuh
2025-02-04 15:15 ` Mukesh Kumar Savaliya
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=20250121110756.214714-2-billy_tsai@aspeedtech.com \
--to=billy_tsai@aspeedtech.com \
--cc=Guruvendra.Punugupati@amd.com \
--cc=Shyam-sundar.S-k@amd.com \
--cc=alexandre.belloni@bootlin.com \
--cc=aniketmaurya@google.com \
--cc=conor.culhane@silvaco.com \
--cc=jarkko.nikula@linux.intel.com \
--cc=linux-i3c@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=miquel.raynal@bootlin.com \
--cc=pgaj@cadence.com \
--cc=wsa+renesas@sang-engineering.com \
--cc=xiaopei01@kylinos.cn \
/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