From: haibo.chen@nxp.com
To: linus.walleij@linaro.org, brgl@bgdev.pl, marek.vasut@gmail.com
Cc: linux-gpio@vger.kernel.org, haibo.chen@nxp.com, linux-imx@nxp.com
Subject: [PATCH 3/3] gpio: pca953x: use the correct register address when regcache sync during init
Date: Mon, 18 Jul 2022 16:31:43 +0800 [thread overview]
Message-ID: <1658133103-23394-3-git-send-email-haibo.chen@nxp.com> (raw)
In-Reply-To: <1658133103-23394-1-git-send-email-haibo.chen@nxp.com>
From: Haibo Chen <haibo.chen@nxp.com>
For regcache_sync_region, need to use pca953x_recalc_addr() to get
the real register address.
Fixes: ec82d1eba346 ("gpio: pca953x: Zap ad-hoc reg_output cache")
Fixes: 0f25fda840a9 ("gpio: pca953x: Zap ad-hoc reg_direction cache")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
---
drivers/gpio/gpio-pca953x.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 18888ec24d04..1747b6a9d5bf 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -910,14 +910,17 @@ static int device_pca95xx_init(struct pca953x_chip *chip, u32 invert)
{
DECLARE_BITMAP(val, MAX_LINE);
int ret;
+ u8 regaddr;
- ret = regcache_sync_region(chip->regmap, chip->regs->output,
- chip->regs->output + NBANK(chip) - 1);
+ regaddr = pca953x_recalc_addr(chip, chip->regs->output, 0);
+ ret = regcache_sync_region(chip->regmap, regaddr,
+ regaddr + NBANK(chip) - 1);
if (ret)
goto out;
- ret = regcache_sync_region(chip->regmap, chip->regs->direction,
- chip->regs->direction + NBANK(chip) - 1);
+ regaddr = pca953x_recalc_addr(chip, chip->regs->direction, 0);
+ ret = regcache_sync_region(chip->regmap, regaddr,
+ regaddr + NBANK(chip) - 1);
if (ret)
goto out;
--
2.25.1
next prev parent reply other threads:[~2022-07-18 8:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-18 8:31 [PATCH 1/3] gpio: pca953x: only use single read/write for No AI mode haibo.chen
2022-07-18 8:31 ` [PATCH 2/3] gpio: pca953x: use the correct range when do regmap sync haibo.chen
2022-07-18 8:31 ` haibo.chen [this message]
2022-07-18 12:00 ` [PATCH 3/3] gpio: pca953x: use the correct register address when regcache sync during init Andy Shevchenko
2022-07-19 9:21 ` Bartosz Golaszewski
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=1658133103-23394-3-git-send-email-haibo.chen@nxp.com \
--to=haibo.chen@nxp.com \
--cc=brgl@bgdev.pl \
--cc=linus.walleij@linaro.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-imx@nxp.com \
--cc=marek.vasut@gmail.com \
/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).