From: Stefan Roese <sr@denx.de>
To: linux-serial@vger.kernel.org, linux-gpio@vger.kernel.org
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Pavel Machek <pavel@denx.de>,
Linus Walleij <linus.walleij@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: [PATCH 1/2] gpiolib: Add for_each_gpio_suffix() helper
Date: Thu, 8 Aug 2019 15:25:42 +0200 [thread overview]
Message-ID: <20190808132543.26274-1-sr@denx.de> (raw)
Add a helper macro to enable the interation over all supported GPIO
suffixes (currently "gpios" & "gpio"). This will be used by the serial
mctrl code to check, if a GPIO property exists before requesting it.
Signed-off-by: Stefan Roese <sr@denx.de>
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Pavel Machek <pavel@denx.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpio/gpiolib.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index 7c52c2442173..a3add73f99d6 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -92,6 +92,12 @@ struct acpi_gpio_info {
/* gpio suffixes used for ACPI and device tree lookup */
static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" };
+#define for_each_gpio_suffix(idx, suffix) \
+ for (idx = 0; \
+ idx < ARRAY_SIZE(gpio_suffixes) && \
+ (suffix = gpio_suffixes[idx]) != NULL; \
+ idx++)
+
#ifdef CONFIG_OF_GPIO
struct gpio_desc *of_find_gpio(struct device *dev,
const char *con_id,
--
2.22.0
next reply other threads:[~2019-08-08 13:25 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-08 13:25 Stefan Roese [this message]
2019-08-08 13:25 ` [PATCH 2/2] serial: mctrl_gpio: Support all GPIO suffixes (gpios vs gpio) Stefan Roese
2019-08-08 13:48 ` Andy Shevchenko
2019-08-08 13:59 ` Stefan Roese
2019-08-12 10:53 ` Andy Shevchenko
2019-08-13 11:42 ` Pavel Machek
2019-08-13 12:15 ` Andy Shevchenko
2019-08-12 11:17 ` Geert Uytterhoeven
2019-08-12 11:53 ` Stefan Roese
2019-08-12 12:11 ` Geert Uytterhoeven
2019-08-12 12:31 ` Andy Shevchenko
2019-08-08 13:44 ` [PATCH 1/2] gpiolib: Add for_each_gpio_suffix() helper Andy Shevchenko
2019-08-08 14:13 ` Stefan Roese
2019-08-10 8:27 ` Linus Walleij
2019-08-10 8:48 ` Greg Kroah-Hartman
2019-08-12 11:18 ` Geert Uytterhoeven
2019-08-14 8:48 ` Linus Walleij
2019-08-14 13:17 ` Stefan Roese
2019-08-14 13:32 ` Geert Uytterhoeven
2019-08-14 13:38 ` Andy Shevchenko
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=20190808132543.26274-1-sr@denx.de \
--to=sr@denx.de \
--cc=andriy.shevchenko@linux.intel.com \
--cc=geert@linux-m68k.org \
--cc=gregkh@linuxfoundation.org \
--cc=linus.walleij@linaro.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=pavel@denx.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).