From: John Watts <contact@jookia.org>
To: barebox@lists.infradead.org
Cc: John Watts <contact@jookia.org>
Subject: [PATCH] I2C: i.MX: early: Use internal udelay
Date: Fri, 27 Jan 2023 05:56:43 +1100 [thread overview]
Message-ID: <20230126185643.104049-1-contact@jookia.org> (raw)
udelay isn't provided in the PBL, so use our own definition.
This avoids boards having to define udelay in their code.
Signed-off-by: John Watts <contact@jookia.org>
---
drivers/i2c/busses/i2c-imx-early.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-imx-early.c b/drivers/i2c/busses/i2c-imx-early.c
index 6c8bdc7904..fcf279eff8 100644
--- a/drivers/i2c/busses/i2c-imx-early.c
+++ b/drivers/i2c/busses/i2c-imx-early.c
@@ -90,6 +90,13 @@ static int i2c_fsl_acked(struct fsl_i2c *fsl_i2c)
return i2c_fsl_poll_status(fsl_i2c, 0, I2SR_RXAK);
}
+static void __udelay(int us)
+{
+ volatile int i;
+
+ for (i = 0; i < us * 1000; i++);
+}
+
static int i2c_fsl_start(struct fsl_i2c *fsl_i2c)
{
unsigned int temp = 0;
@@ -104,7 +111,7 @@ static int i2c_fsl_start(struct fsl_i2c *fsl_i2c)
fsl_i2c, FSL_I2C_I2CR);
/* Wait controller to be stable */
- udelay(100);
+ __udelay(100);
/* Start I2C transaction */
temp = fsl_i2c_read_reg(fsl_i2c, FSL_I2C_I2CR);
--
2.39.1
next reply other threads:[~2023-01-26 18:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-26 18:56 John Watts [this message]
2023-01-30 10:27 ` Sascha Hauer
2023-01-30 10:42 ` John Watts
2023-01-30 12:17 ` Sascha Hauer
2023-01-30 12:24 ` John Watts
2023-01-30 12:31 ` Sascha Hauer
2023-01-30 12:56 ` John Watts
2023-01-30 16:36 ` Sascha Hauer
2023-01-30 18:42 ` John Watts
2023-01-31 6:14 ` Sascha Hauer
2023-01-31 6:33 ` John Watts
2023-02-02 14:21 ` Jules Maselbas
2023-02-02 14:27 ` Ahmad Fatoum
2023-02-01 17:50 ` Alexander Shiyan
2023-02-01 18:12 ` Jookia
2023-02-01 19:44 ` Ahmad Fatoum
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=20230126185643.104049-1-contact@jookia.org \
--to=contact@jookia.org \
--cc=barebox@lists.infradead.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox