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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <bartosz.golaszewski@linaro.org>,
	Yury Norov <yury.norov@gmail.com>,
	linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: "Shubhrajyoti Datta" <shubhrajyoti.datta@amd.com>,
	"Srinivas Neeli" <srinivas.neeli@amd.com>,
	"Michal Simek" <michal.simek@amd.com>,
	"Bartosz Golaszewski" <brgl@bgdev.pl>,
	"Andy Shevchenko" <andy@kernel.org>,
	"Rasmus Villemoes" <linux@rasmusvillemoes.dk>,
	"Marek Behún" <kabel@kernel.org>
Subject: [PATCH v1 3/5] gpio: xilinx: Switch to use new bitmap_scatter() helper
Date: Tue, 26 Sep 2023 08:20:05 +0300	[thread overview]
Message-ID: <20230926052007.3917389-4-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20230926052007.3917389-1-andriy.shevchenko@linux.intel.com>

bitmaps_scatter() produces a sparse bitmap based on the dense one
and a given mask. In this driver the given mask is hw_map, while
sw_map is of sequential bits. We may use the bitmap_scatter() helper
instead of bitmap_remap(), because it's optimized for our case.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/gpio/gpio-xilinx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c
index a16945e8319e..f103c30cc74f 100644
--- a/drivers/gpio/gpio-xilinx.c
+++ b/drivers/gpio/gpio-xilinx.c
@@ -208,8 +208,8 @@ static void xgpio_set_multiple(struct gpio_chip *gc, unsigned long *mask,
 	unsigned long flags;
 	struct xgpio_instance *chip = gpiochip_get_data(gc);
 
-	bitmap_remap(hw_mask, mask, chip->sw_map, chip->hw_map, 64);
-	bitmap_remap(hw_bits, bits, chip->sw_map, chip->hw_map, 64);
+	bitmap_scatter(hw_mask, mask, chip->hw_map, 64);
+	bitmap_scatter(hw_bits, bits, chip->hw_map, 64);
 
 	spin_lock_irqsave(&chip->gpio_lock, flags);
 
-- 
2.40.0.1.gaa8946217a0b


  parent reply	other threads:[~2023-09-26  5:20 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-26  5:20 [PATCH v1 0/5] bitmap: get rid of bitmap_remap() and bitmap_biremap() uses Andy Shevchenko
2023-09-26  5:20 ` [PATCH v1 1/5] lib/test_bitmap: Excape space symbols when printing input string Andy Shevchenko
2023-09-26 10:35   ` Kent Gibson
2023-09-26 10:39     ` Kent Gibson
2023-09-26  5:20 ` [PATCH v1 2/5] lib/bitmap: Introduce bitmap_scatter() and bitmap_gather() helpers Andy Shevchenko
2023-09-27  0:25   ` Yury Norov
2023-09-27  2:10     ` Yury Norov
2023-09-27 12:10       ` Andy Shevchenko
2023-09-27 12:02     ` Andy Shevchenko
2023-10-02  4:06       ` Yury Norov
2023-10-02  8:23         ` Andy Shevchenko
2023-09-26  5:20 ` Andy Shevchenko [this message]
2023-09-26  5:20 ` [PATCH v1 4/5] gpio: xilinx: Replace bitmap_bitremap() calls Andy Shevchenko
2023-09-26 10:41   ` Kent Gibson
2023-09-26 11:11     ` Andy Shevchenko
2023-09-26 11:17       ` Kent Gibson
2023-09-26  5:20 ` [PATCH v1 5/5] gpiolib: cdev: Utilize more bitmap APIs Andy Shevchenko
2023-09-27  0:46   ` Yury Norov
2023-09-27  6:48     ` Kent Gibson
2023-09-27  1:32   ` Kent Gibson
2023-09-27 12:17     ` Andy Shevchenko
2023-09-27 13:49       ` Kent Gibson
2023-09-27 13:59         ` Andy Shevchenko
2023-09-27 14:23           ` Kent Gibson
2023-10-02  9:05             ` Andy Shevchenko
2023-10-02  9:25               ` Kent Gibson
2023-10-02  9:32                 ` Andy Shevchenko
2023-10-02  9:42                   ` Kent Gibson
2023-09-26  8:52 ` [PATCH v1 0/5] bitmap: get rid of bitmap_remap() and bitmap_biremap() uses Linus Walleij
2023-09-26 11:16   ` Andy Shevchenko

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