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regmap: provide simple bitops and use them in a driver

From:  Bartosz Golaszewski <brgl-AT-bgdev.pl>
To:  John Crispin <john-AT-phrozen.org>, Sean Wang <sean.wang-AT-mediatek.com>, Mark Lee <Mark-MC.Lee-AT-mediatek.com>, "David S . Miller" <davem-AT-davemloft.net>, Jakub Kicinski <kuba-AT-kernel.org>, Matthias Brugger <matthias.bgg-AT-gmail.com>, Mark Brown <broonie-AT-kernel.org>
Subject:  [PATCH v3 0/2] regmap: provide simple bitops and use them in a driver
Date:  Thu, 28 May 2020 17:45:01 +0200
Message-ID:  <20200528154503.26304-1-brgl@bgdev.pl>
Cc:  netdev-AT-vger.kernel.org, linux-arm-kernel-AT-lists.infradead.org, linux-mediatek-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org, Fabien Parent <fparent-AT-baylibre.com>, Stephane Le Provost <stephane.leprovost-AT-mediatek.com>, Pedro Tsai <pedro.tsai-AT-mediatek.com>, Andrew Perepech <andrew.perepech-AT-mediatek.com>, Bartosz Golaszewski <bgolaszewski-AT-baylibre.com>
Archive-link:  Article

From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

I noticed that oftentimes I use regmap_update_bits() for simple bit
setting or clearing. In this case the fourth argument is superfluous as
it's always 0 or equal to the mask argument.

This series proposes to add simple bit operations for setting, clearing
and testing specific bits with regmap.

The second patch uses all three in a driver that got recently picked into
the net-next tree.

The patches obviously target different trees so - if you're ok with
the change itself - I propose you pick the first one into your regmap
tree for v5.8 and then I'll resend the second patch to add the first
user for these macros for v5.9.

v1 -> v2:
- convert the new macros to static inline functions

v2 -> v3:
- drop unneeded ternary operator

Bartosz Golaszewski (2):
  regmap: provide helpers for simple bit operations
  net: ethernet: mtk-star-emac: use regmap bitops

 drivers/base/regmap/regmap.c                  | 22 +++++
 drivers/net/ethernet/mediatek/mtk_star_emac.c | 80 ++++++++-----------
 include/linux/regmap.h                        | 36 +++++++++
 3 files changed, 93 insertions(+), 45 deletions(-)

-- 
2.26.1



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