[PATCH/RFC 05/17] bus: omap_l3_noc: Use bitfield helpers

From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Tony Lindgren <tony@atomide.com>,
	Russell King <linux@armlinux.org.uk>,
	Rajendra Nayak <rnayak@codeaurora.org>,
	Paul Walmsley <paul@pwsan.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Nicolas Ferre <nicolas.ferre@microchip.com>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Ludovic Desroches <ludovic.desroches@microchip.com>,
	Tero Kristo <kristo@kernel.org>,
	Jonathan Cameron <jic23@kernel.org>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>,
	Benoit Parrot <bparrot@ti.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Andrew Jeffery <andrew@aj.id.au>,
	Ulf Hansson <ulf.hansson@linaro.org>,
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	"David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>,
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	Keerthy <j-keerthy@ti.com>,
	"Rafael J . Wysocki" <rafael@kernel.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
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	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org, linux-iio@vger.kernel.org,
	linux-media@vger.kernel.org, linux-mmc@vger.kernel.org,
	linux-aspeed@lists.ozlabs.org, openbmc@lists.ozlabs.org,
	linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
	linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org,
	alsa-devel@alsa-project.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH/RFC 05/17] bus: omap_l3_noc: Use bitfield helpers
Date: Mon, 22 Nov 2021 16:53:58 +0100	[thread overview]
Message-ID: <8f5ac0ff643fcfe29ba671b434c57d88524f0450.1637592133.git.geert+renesas@glider.be> (raw)
In-Reply-To: <cover.1637592133.git.geert+renesas@glider.be>

Use the field_get() bitfield helper, instead of open-coding the same
operation.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Compile-tested only.
Marked RFC, as this depends on [PATCH 01/17], but follows a different
path to upstream.
---
 drivers/bus/omap_l3_noc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/omap_l3_noc.c b/drivers/bus/omap_l3_noc.c
index dcfb32ee5cb60239..1a692c86d085f43e 100644
--- a/drivers/bus/omap_l3_noc.c
+++ b/drivers/bus/omap_l3_noc.c
@@ -14,6 +14,7 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */
+#include <linux/bitfield.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -118,8 +119,7 @@ static int l3_handle_target(struct omap_l3 *l3, void __iomem *base,
 	}
 
 	/* STDERRLOG_MSTADDR Stores the NTTP master address. */
-	masterid = (readl_relaxed(l3_targ_mstaddr) &
-		    l3->mst_addr_mask) >> __ffs(l3->mst_addr_mask);
+	masterid = field_get(l3->mst_addr_mask, readl_relaxed(l3_targ_mstaddr));
 
 	for (k = 0, master = l3->l3_masters; k < l3->num_masters;
 	     k++, master++) {
-- 
2.25.1

