From: Yury Norov <ynorov@nvidia.com>
To: Linus Walleij <linusw@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Bartosz Golaszewski <brgl@kernel.org>,
Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>,
Srinivas Neeli <srinivas.neeli@amd.com>,
Michal Simek <michal.simek@amd.com>,
Yury Norov <yury.norov@gmail.com>,
linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Yury Norov <ynorov@nvidia.com>
Subject: [PATCH v2 0/2] gpio: drop bitmap_complement() where feasible
Date: Fri, 17 Apr 2026 13:59:52 -0400 [thread overview]
Message-ID: <20260417175955.375275-1-ynorov@nvidia.com> (raw)
The gpio drivers reproduce the following pattern:
bitmap_complement(tmp, data1, nbits);
bitmap_and(dst, data2, tmp, nbits);
This can be done in a single pass:
bitmap_andnot(dst, data2, data1, nbits);
v1: https://lore.kernel.org/all/20260417033439.318930-1-ynorov@nvidia.com/
v2:
- cleanup typos (Michal);
- split per individual drivers (Andy).
Yury Norov (2):
gpio: pca953x: drop bitmap_complement() where feasible
gpio: xilinx: drop bitmap_complement() where feasible
drivers/gpio/gpio-pca953x.c | 7 ++-----
drivers/gpio/gpio-xilinx.c | 6 ++----
2 files changed, 4 insertions(+), 9 deletions(-)
--
2.51.0
next reply other threads:[~2026-04-17 18:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-17 17:59 Yury Norov [this message]
2026-04-17 17:59 ` [PATCH v2 1/2] gpio: pca953x: drop bitmap_complement() where feasible Yury Norov
2026-04-17 17:59 ` [PATCH v2 2/2] gpio: xilinx: " Yury Norov
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