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
next prev 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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