Files
eternalwrt-mt798x/target/linux/generic/backport-6.12/825-v6.19-pinctrl-ma35-Convert-to-common-field_-get-prep-helpe.patch
T
Christian Marangi 25f92aaae1 generic: backport new field_prep()/get() helper for non-const bitmask
Backport new field_prep()/get() particularly useful to handle case where a
bitmask is not const and FIELD_PREP can't be used. This permit to replace
manual shift with these macro. (also needed to permit backport of some
patch without modification)

Backport reworked patch that drop the local field_prep()/get() macro in
favor of the global one.

Link: https://github.com/openwrt/openwrt/pull/22479
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2026-03-20 13:21:23 +01:00

29 lines
1.2 KiB
Diff

From bb0e7fda87753a973cb4a86c22905b1177f00d4e Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Thu, 6 Nov 2025 14:34:08 +0100
Subject: [PATCH] pinctrl: ma35: Convert to common field_{get,prep}() helpers
Drop the driver-specific field_get() and field_prep() macros, in favor
of the globally available variants from <linux/bitfield.h>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
---
drivers/pinctrl/nuvoton/pinctrl-ma35.c | 6 ------
1 file changed, 6 deletions(-)
--- a/drivers/pinctrl/nuvoton/pinctrl-ma35.c
+++ b/drivers/pinctrl/nuvoton/pinctrl-ma35.c
@@ -81,10 +81,6 @@
#define MVOLT_1800 0
#define MVOLT_3300 1
-/* Non-constant mask variant of FIELD_GET() and FIELD_PREP() */
-#define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1))
-#define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask))
-
static const char * const gpio_group_name[] = {
"gpioa", "gpiob", "gpioc", "gpiod", "gpioe", "gpiof", "gpiog",
"gpioh", "gpioi", "gpioj", "gpiok", "gpiol", "gpiom", "gpion",