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From: Janusz Krzysztofik <jmkrzyszt@gmail.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: "Jonathan Corbet" <corbet@lwn.net>,
	"Miguel Ojeda Sandonis" <miguel.ojeda.sandonis@gmail.com>,
	"Peter Korsgaard" <peter.korsgaard@barco.com>,
	"Peter Rosin" <peda@axentia.se>,
	"Ulf Hansson" <ulf.hansson@linaro.org>,
	"Andrew Lunn" <andrew@lunn.ch>,
	"Florian Fainelli" <f.fainelli@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	"Dominik Brodowski" <linux@dominikbrodowski.net>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Kishon Vijay Abraham I" <kishon@ti.com>,
	"Lars-Peter Clausen" <lars@metafoo.de>,
	"Michael Hennerich" <Michael.Hennerich@analog.com>,
	"Jonathan Cameron" <jic23@kernel.org>,
	"Hartmut Knaack" <knaack.h@gmx.de>,
	"Peter Meerwald-Stadler" <pmeerw@pmeerw.net>,
	"Jiri Slaby" <jslaby@suse.com>, "Willy Tarreau" <w@1wt.eu>,
	"Geert Uytterhoeven" <geert@linux-m68k.org>,
	"Sebastien Bourdelin" <sebastien.bourdelin@savoirfairelinux.com>,
	"Lukas Wunner" <lukas@wunner.de>,
	"Rojhalat Ibrahim" <imr@rtschenk.de>,
	"Russell King" <rmk+kernel@armlinux.org.uk>,
	"Tony Lindgren" <tony@atomide.com>,
	"Yegor Yefremov" <yegorslists@googlemail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Janusz Krzysztofik" <jmkrzyszt@gmail.com>,
	linux-doc@vger.kernel.org, linux-i2c@vger.kernel.org,
	linux-mmc@vger.kernel.org, netdev@vger.kernel.org,
	linux-iio@vger.kernel.org, devel@driverdev.osuosl.org,
	linux-serial@vger.kernel.org, linux-gpio@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	"Marek Szyprowski" <m.szyprowski@samsung.com>,
	"Krzysztof Kozlowski" <krzk@kernel.org>,
	"Linux Samsung SOC" <linux-samsung-soc@vger.kernel.org>
Subject: [PATCH 2/2] gpiolib: Fix array members of same chip processed separately
Date: Mon, 24 Sep 2018 01:53:36 +0200
Message-ID: <20180923235336.22148-3-jmkrzyszt@gmail.com> (raw)
In-Reply-To: <20180923235336.22148-1-jmkrzyszt@gmail.com>

New code introduced by commit bf9346f5d47b ("gpiolib: Identify arrays
matching GPIO hardware") forcibly tries to find an array member which
has its array index number equal to its hardware pin number and set
up an array info for possible fast bitmap processing of all arrray
pins belonging to that chip which also satisfy that numbering rule.

Depending on array content, it may happen that consecutive array
members which belong to the same chip but don't have array indexes
equal to their pin hardware numbers will be split into groups, some of
them processed together via the fast bitmap path, and rest of them
separetely.  However, applications may expect all those pins being
processed together with a single call to .set_multiple() chip callback,
like that was done before the change.

Limit applicability of fast bitmap processing path to cases where all
pins of consecutive array members starting from 0 which belong to the
same chip have their hardware numbers equal to their corresponding
array indexes.  That should still speed up processing of applications
using whole GPIO banks as I/O ports, while not breaking simultaneous
manipulation of consecutive pins of the same chip which don't follow
the equal numbering rule.

Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
---
 Documentation/driver-api/gpio/board.rst | 19 +++++++++++++-----
 drivers/gpio/gpiolib.c                  | 35 +++++++++++++++++++++++----------
 2 files changed, 39 insertions(+), 15 deletions(-)

diff --git a/Documentation/driver-api/gpio/board.rst b/Documentation/driver-api/gpio/board.rst
index c66821e033c2..a0f294e2e250 100644
--- a/Documentation/driver-api/gpio/board.rst
+++ b/Documentation/driver-api/gpio/board.rst
@@ -202,9 +202,18 @@ mapped to the device determines if the array qualifies for fast bitmap
 processing.  If yes, a bitmap is passed over get/set array functions directly
 between a caller and a respective .get/set_multiple() callback of a GPIO chip.
 
-In order to qualify for fast bitmap processing, the pin mapping must meet the
+In order to qualify for fast bitmap processing, the array must meet the
 following requirements:
-- it must belong to the same chip as other 'fast' pins of the function,
-- its index within the function must match its hardware number within the chip.
-
-Open drain and open source pins are excluded from fast bitmap output processing.
+- pin hardware number of array member 0 must also be 0,
+- pin hardware numbers of consecutive array members which belong to the same
+  chip as member 0 does must also match their array indexes.
+
+Otherwise fast bitmap processing path is not used in order to avoid consecutive
+pins which belong to the same chip but are not in hardware order being processed
+separately.
+
+If the array applies for fast bitmap processing path, pins which belong to
+different chips than member 0 does, as well as those with indexes different from
+their hardware pin numbers, are excluded from the fast path, both input and
+output.  Moreover, open drain and open source pins are excluded from fast bitmap
+output processing.
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 7d9536a79a66..6ae13e3e05f1 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -4376,11 +4376,10 @@ struct gpio_descs *__must_check gpiod_get_array(struct device *dev,
 
 		chip = gpiod_to_chip(desc);
 		/*
-		 * Select a chip of first array member
-		 * whose index matches its pin hardware number
-		 * as a candidate for fast bitmap processing.
+		 * If pin hardware number of array member 0 is also 0, select
+		 * its chip as a candidate for fast bitmap processing path.
 		 */
-		if (!array_info && gpio_chip_hwgpio(desc) == descs->ndescs) {
+		if (descs->ndescs == 0 && gpio_chip_hwgpio(desc) == 0) {
 			struct gpio_descs *array;
 
 			bitmap_size = BITS_TO_LONGS(chip->ngpio > count ?
@@ -4414,14 +4413,30 @@ struct gpio_descs *__must_check gpiod_get_array(struct device *dev,
 				   count - descs->ndescs);
 			descs->info = array_info;
 		}
-		/*
-		 * Unmark members which don't qualify for fast bitmap
-		 * processing (different chip, not in hardware order)
-		 */
-		if (array_info && (chip != array_info->chip ||
-		    gpio_chip_hwgpio(desc) != descs->ndescs)) {
+		/* Unmark array members which don't belong to the 'fast' chip */
+		if (array_info && array_info->chip != chip) {
 			__clear_bit(descs->ndescs, array_info->get_mask);
 			__clear_bit(descs->ndescs, array_info->set_mask);
+		}
+		/*
+		 * Detect array members which belong to the 'fast' chip
+		 * but their pins are not in hardware order.
+		 */
+		else if (array_info &&
+			   gpio_chip_hwgpio(desc) != descs->ndescs) {
+			/*
+			 * Don't use fast path if all array members processed so
+			 * far belong to the same chip as this one but its pin
+			 * hardware number is different from its array index.
+			 */
+			if (bitmap_full(array_info->get_mask, descs->ndescs)) {
+				array_info = NULL;
+			} else {
+				__clear_bit(descs->ndescs,
+					    array_info->get_mask);
+				__clear_bit(descs->ndescs,
+					    array_info->set_mask);
+			}
 		} else if (array_info) {
 			/* Exclude open drain or open source from fast output */
 			if (gpiochip_line_is_open_drain(chip, descs->ndescs) ||
-- 
2.16.4


  parent reply index

Thread overview: 206+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-18 23:57 [RFC PATCH 0/8] mtd: rawnand: ams-delta: Use gpio-omap accessors for data I/O Janusz Krzysztofik
2018-07-18 23:57 ` [RFC PATCH 1/8] mtd: rawnand: ams-delta: Use private structure Janusz Krzysztofik
2018-07-19  6:17   ` Boris Brezillon
2018-07-20 17:57     ` Janusz Krzysztofik
2018-07-18 23:57 ` [RFC PATCH 2/8] mtd: rawnand: ams-delta: Write protect device during probe Janusz Krzysztofik
2018-07-19  6:22   ` Boris Brezillon
2018-07-20 18:02     ` Janusz Krzysztofik
2018-07-18 23:57 ` [RFC PATCH 3/8] mtd: rawnand: ams-delta: Set port direction once per transfer Janusz Krzysztofik
2018-07-19  6:23   ` Boris Brezillon
2018-07-20 18:12     ` Janusz Krzysztofik
2018-07-20 19:29       ` Boris Brezillon
2018-07-18 23:57 ` [RFC PATCH 4/8] mtd: rawnand: ams-delta: Optimize pointer resolution on read/write Janusz Krzysztofik
2018-07-19  6:25   ` Boris Brezillon
2018-07-20 18:14     ` Janusz Krzysztofik
2018-07-20 19:29       ` Boris Brezillon
2018-07-18 23:57 ` [RFC PATCH 5/8] mtd: rawnand: ams-delta: Request data port GPIO resource Janusz Krzysztofik
2018-07-19  6:28   ` Boris Brezillon
2018-07-18 23:57 ` [RFC PATCH 6/8] gpio: omap: Add get/set_multiple() callbacks Janusz Krzysztofik
2018-07-29 20:29   ` Linus Walleij
2018-08-03  1:52     ` Grygorii Strashko
2018-08-03 16:47   ` Linus Walleij
2018-07-18 23:57 ` [RFC PATCH 7/8] mtd: rawnand: ams-delta: Check sanity of data GPIO resource Janusz Krzysztofik
2018-07-19  6:44   ` Boris Brezillon
2018-07-29 20:36     ` Linus Walleij
2018-07-29 21:16       ` Boris Brezillon
2018-07-29 20:33   ` Linus Walleij
2018-07-18 23:57 ` [RFC PATCH 8/8] mtd: rawnand: ams-delta: Use GPIO callbacks for data I/O Janusz Krzysztofik
2018-07-19  6:47   ` Boris Brezillon
2018-07-20 18:38     ` Janusz Krzysztofik
2018-07-20 19:48       ` Boris Brezillon
2018-07-19  6:15 ` [RFC PATCH 0/8] mtd: rawnand: ams-delta: Use gpio-omap accessors " Boris Brezillon
2018-07-20 17:55   ` Janusz Krzysztofik
2018-07-20 19:25     ` Boris Brezillon
2018-10-03 12:00   ` [RFC PATCH] mtd: rawnand: ams-delta: use ->exec_op() Janusz Krzysztofik
2018-10-03 12:30     ` Boris Brezillon
2018-10-03 13:55       ` Janusz Krzysztofik
2018-10-03 14:06         ` Boris Brezillon
2018-10-04 13:52           ` Janusz Krzysztofik
2018-10-04 13:59             ` Boris Brezillon
2018-10-04 14:11               ` Janusz Krzysztofik
2018-10-04 14:22                 ` Boris Brezillon
2018-10-12 20:41     ` [PATCH v2 1/2] mtd: rawnand: Provide helper for polling GPIO R/B pin Janusz Krzysztofik
2018-10-12 20:41       ` [PATCH v2 2/2] mtd: rawnand: ams-delta: Use ->exec_op() Janusz Krzysztofik
2018-10-13  6:05         ` Boris Brezillon
2018-10-13  5:55       ` [PATCH v2 1/2] mtd: rawnand: Provide helper for polling GPIO R/B pin Boris Brezillon
2018-10-15 19:41       ` [PATCH v3 1/3] " Janusz Krzysztofik
2018-10-15 19:41         ` [PATCH v3 2/3] mtd: rawnand: ams-delta: Stop using legacy .IOADDR_R/W Janusz Krzysztofik
2018-10-15 19:41         ` [PATCH v3 3/3] mtd: rawnand: ams-delta: Convert the driver to ->exec_op() Janusz Krzysztofik
2018-11-11 20:53         ` [PATCH v3 1/3] mtd: rawnand: Provide helper for polling GPIO R/B pin Miquel Raynal
2018-08-06 22:29 ` [RFC PATCH v2] mtd: rawnand: ams-delta: Use GPIO API for data I/O Janusz Krzysztofik
2018-08-06 22:29   ` [RFC PATCH v2 01/12] mtd: rawnand: ams-delta: Assign mtd->dev.parent, not mtd->owner Janusz Krzysztofik
2018-08-06 23:54     ` Marek Vasut
2018-08-07 21:55       ` Janusz Krzysztofik
2018-08-07 16:57     ` Boris Brezillon
2018-08-06 22:29   ` [RFC PATCH v2 02/12] mtd: rawnand: ams-delta: Use private structure Janusz Krzysztofik
2018-08-07 16:59     ` Boris Brezillon
2018-08-06 22:29   ` [RFC PATCH v2 03/12] ARM: OMAP1: ams-delta: Provide GPIO lookup table for NAND data port Janusz Krzysztofik
2018-08-07 16:59     ` Boris Brezillon
2018-08-10 10:10     ` Linus Walleij
2018-08-06 22:29   ` [RFC PATCH v2 04/12] mtd: rawnand: ams-delta: request data port GPIO resource Janusz Krzysztofik
2018-08-07 17:00     ` Boris Brezillon
2018-08-10 10:11     ` Linus Walleij
2018-08-06 22:29   ` [RFC PATCH v2 05/12] mtd: rawnand: ams-delta: use GPIO API for data read/write Janusz Krzysztofik
2018-08-06 23:57     ` Marek Vasut
2018-08-07 17:06     ` Boris Brezillon
2018-08-07 17:11       ` Janusz Krzysztofik
2018-08-10 10:25     ` Linus Walleij
2018-08-06 22:29   ` [RFC PATCH v2 06/12] ARM: OMAP1: ams-delta: drop obsolete NAND resources Janusz Krzysztofik
2018-08-06 22:29   ` [RFC PATCH v2 07/12] mtd: rawnand: ams-delta: Set port direction once per transfer Janusz Krzysztofik
2018-08-07 18:57     ` Boris Brezillon
2018-08-08 16:55       ` Janusz Krzysztofik
2018-08-08 17:42         ` Miquel Raynal
2018-08-06 22:29   ` [RFC PATCH v2 08/12] mtd: rawnand: ams-delta: Simplify pointer resolution on read/write Janusz Krzysztofik
2018-08-07 17:02     ` Boris Brezillon
2018-08-07 17:15       ` Janusz Krzysztofik
2018-08-06 22:29   ` [RFC PATCH v2 09/12] gpiolib: Identify GPIO descriptor arrays with direct mapping Janusz Krzysztofik
2018-08-06 23:29     ` Linus Walleij
2018-08-07 16:50       ` Janusz Krzysztofik
2018-08-07 17:10         ` Boris Brezillon
2018-08-07 17:14     ` Boris Brezillon
2018-08-07 17:19       ` Janusz Krzysztofik
2018-08-06 22:29   ` [RFC PATCH v2 10/12] gpiolib: Introduce bitmap get/set array API extension Janusz Krzysztofik
2018-08-06 22:29   ` [RFC PATCH v2 11/12] mtd: rawnand: ams-delta: Use GPIO API bitmap extension Janusz Krzysztofik
2018-08-06 22:29   ` [RFC PATCH v2 12/12] gpiolib: Add fast processing path to bitmap API functions Janusz Krzysztofik
2018-08-06 23:43     ` Linus Walleij
2018-08-07 17:29       ` Janusz Krzysztofik
2018-08-07 17:47         ` Boris Brezillon
2018-08-10 10:55           ` Linus Walleij
2018-08-13 22:34   ` [PATCH v3 0/7] mtd: rawnand: ams-delta: Use GPIO API for data I/O Janusz Krzysztofik
2018-08-13 22:34     ` [PATCH v3 1/7] mtd: rawnand: ams-delta: show parent device in sysfs Janusz Krzysztofik
2018-08-13 22:34     ` [PATCH v3 2/7] mtd: rawnand: ams-delta: Use private structure Janusz Krzysztofik
2018-08-13 22:34     ` [PATCH v3 3/7] ARM: OMAP1: ams-delta: Provide GPIO lookup table for NAND data port Janusz Krzysztofik
2018-08-13 22:34     ` [PATCH v3 4/7] mtd: rawnand: ams-delta: request data port GPIO resource Janusz Krzysztofik
2018-08-13 22:34     ` [PATCH v3 5/7] mtd: rawnand: ams-delta: Set port direction when needed Janusz Krzysztofik
2018-08-16  7:30       ` Boris Brezillon
2018-08-13 22:34     ` [PATCH v3 6/7] mtd: rawnand: ams-delta: Simplify pointer resolution on read/write Janusz Krzysztofik
2018-08-13 22:34     ` [PATCH v3 7/7] mtd: rawnand: ams-delta: use GPIO API for data I/O Janusz Krzysztofik
2018-08-16  7:39       ` Boris Brezillon
2018-08-20 21:39     ` [PATCH v4 0/3] mtd: rawnand: ams-delta: Cleanups and optimizations Janusz Krzysztofik
2018-08-20 21:39       ` [PATCH v4 1/3] mtd: rawnand: ams-delta: show parent device in sysfs Janusz Krzysztofik
2018-08-20 21:39       ` [PATCH v4 2/3] mtd: rawnand: ams-delta: Use private structure Janusz Krzysztofik
2018-08-20 21:39       ` [PATCH v4 3/3] mtd: rawnand: ams-delta: Set port direction when needed Janusz Krzysztofik
2018-08-24 12:57         ` Boris Brezillon
2018-09-05  6:47       ` [PATCH v4 0/3] mtd: rawnand: ams-delta: Cleanups and optimizations Miquel Raynal
2018-09-05 20:53         ` Janusz Krzysztofik
2018-09-07 16:45           ` Tony Lindgren
2018-09-19  8:46             ` Miquel Raynal
2018-09-19 22:52       ` [PATCH v5 " Janusz Krzysztofik
2018-09-19 22:52         ` [PATCH v5 1/3] mtd: rawnand: ams-delta: show parent device in sysfs Janusz Krzysztofik
2018-09-19 22:52         ` [PATCH v5 2/3] mtd: rawnand: ams-delta: Use private structure Janusz Krzysztofik
2018-09-19 22:52         ` [PATCH v5 3/3] mtd: rawnand: ams-delta: Set port direction when needed Janusz Krzysztofik
2018-09-23 11:35         ` [PATCH v5 0/3] mtd: rawnand: ams-delta: Cleanups and optimizations Miquel Raynal
2018-08-20 23:43     ` [RFC RFT PATCH 0/4] gpiolib: speed up GPIO array processing Janusz Krzysztofik
2018-08-20 23:43       ` [RFC RFT PATCH v4 1/4] gpiolib: Pass bitmaps, not integer arrays, to get/set array Janusz Krzysztofik
2018-08-21  6:49         ` Peter Rosin
2018-08-21  6:52           ` Peter Rosin
2018-08-29 12:03         ` Miguel Ojeda
2018-08-29 18:01           ` Janusz Krzysztofik
2018-08-20 23:43       ` [RFC RFT PATCH v4 2/4] gpiolib: Identify arrays matching GPIO hardware Janusz Krzysztofik
2018-08-20 23:43       ` [RFC RFT PATCH v4 3/4] gpiolib: Pass array info to get/set array functions Janusz Krzysztofik
2018-08-20 23:43       ` [RFC RFT PATCH v4 4/4] gpiolib: Implement fast processing path in get/set array Janusz Krzysztofik
2018-08-29  9:06       ` [RFC RFT PATCH 0/4] gpiolib: speed up GPIO array processing Linus Walleij
2018-08-29 18:16         ` Janusz Krzysztofik
2018-08-29 10:19       ` Ulf Hansson
2018-08-29 20:48       ` [PATH v5 " Janusz Krzysztofik
2018-08-29 20:48         ` [PATCH v5 1/4] gpiolib: Pass bitmaps, not integer arrays, to get/set array Janusz Krzysztofik
2018-08-30  4:30           ` Peter Rosin
2018-08-30  7:40           ` Geert Uytterhoeven
2018-08-30 11:10           ` Miguel Ojeda
2018-08-30 15:35             ` David Laight
2018-09-02 10:19             ` Janusz Krzysztofik
2018-08-31  9:14           ` Linus Walleij
2018-08-29 20:48         ` [PATCH v5 2/4] gpiolib: Identify arrays matching GPIO hardware Janusz Krzysztofik
2018-08-29 20:48         ` [PATCH v5 3/4] gpiolib: Pass array info to get/set array functions Janusz Krzysztofik
2018-08-29 20:49         ` [PATCH v5 4/4] gpiolib: Implement fast processing path in get/set array Janusz Krzysztofik
2018-08-31 22:56         ` [PATH v6 0/4] gpiolib: speed up GPIO array processing Janusz Krzysztofik
2018-08-31 22:56           ` [PATCH v6 1/4] gpiolib: Pass bitmaps, not integer arrays, to get/set array Janusz Krzysztofik
2018-09-01  0:23             ` Peter Rosin
2018-09-04 15:28             ` kbuild test robot
2018-09-04 15:28             ` kbuild test robot
2018-08-31 22:56           ` [PATCH v6 2/4] gpiolib: Identify arrays matching GPIO hardware Janusz Krzysztofik
2018-08-31 22:56           ` [PATCH v6 3/4] gpiolib: Pass array info to get/set array functions Janusz Krzysztofik
2018-09-04 15:27             ` kbuild test robot
2018-08-31 22:56           ` [PATCH v6 4/4] gpiolib: Implement fast processing path in get/set array Janusz Krzysztofik
2018-09-02 12:01           ` [PATCH v7 0/4] gpiolib: speed up GPIO array processing Janusz Krzysztofik
2018-09-02 12:01             ` [PATCH v7 1/4] gpiolib: Pass bitmaps, not integer arrays, to get/set array Janusz Krzysztofik
2018-09-02 13:21               ` Lukas Wunner
2018-09-03  4:31               ` Matthew Wilcox
2018-09-03 14:24                 ` Geert Uytterhoeven
2018-09-03 15:07               ` Geert Uytterhoeven
2018-09-04 15:29               ` kbuild test robot
2018-09-05  6:46               ` kbuild test robot
2018-09-02 12:01             ` [PATCH v7 2/4] gpiolib: Identify arrays matching GPIO hardware Janusz Krzysztofik
2018-09-02 12:01             ` [PATCH v7 3/4] gpiolib: Pass array info to get/set array functions Janusz Krzysztofik
2018-09-03 14:21               ` Geert Uytterhoeven
2018-09-04 15:23               ` kbuild test robot
2018-09-05  7:11               ` kbuild test robot
2018-09-02 12:01             ` [PATCH v7 4/4] gpiolib: Implement fast processing path in get/set array Janusz Krzysztofik
     [not found]               ` <CGME20180920101151eucas1p221f5a1715b8556bb9d99bf08fe09ce6f@eucas1p2.samsung.com>
2018-09-20 10:11                 ` Marek Szyprowski
2018-09-20 15:48                   ` Janusz Krzysztofik
2018-09-20 16:21                     ` Janusz Krzysztofik
2018-09-21  8:18                       ` Marek Szyprowski
2018-09-21 10:51                         ` Janusz Krzysztofik
2018-09-21 11:26                           ` Janusz Krzysztofik
2018-09-21 14:14                           ` Marek Szyprowski
2018-09-23 10:43                             ` Janusz Krzysztofik
2018-09-23 23:53                               ` [PATCH 0/2] gpiolib: Fix issues introduced by fast bitmap processing path Janusz Krzysztofik
2018-09-23 23:53                                 ` [PATCH 1/2] gpiolib: Fix missing updates of bitmap index Janusz Krzysztofik
2018-09-24  8:11                                   ` Linus Walleij
2018-09-29 12:20                                   ` [PATCH] gpiolib: Fix incorrect use of find_next_zero_bit() Janusz Krzysztofik
2018-10-01  6:46                                     ` Marek Szyprowski
2018-10-01  9:37                                     ` Linus Walleij
2018-09-23 23:53                                 ` Janusz Krzysztofik [this message]
2018-09-24  8:13                                   ` [PATCH 2/2] gpiolib: Fix array members of same chip processed separately Linus Walleij
2018-09-24  9:43                                 ` [PATCH 0/2] gpiolib: Fix issues introduced by fast bitmap processing path Marek Szyprowski
2018-09-24 11:08                                   ` Janusz Krzysztofik
2018-09-24 11:38                                     ` Marek Szyprowski
2018-09-24 14:18                                       ` Janusz Krzysztofik
2018-09-25 19:24                                         ` [PATCH] mmc: pwrseq_simple: Fix incorrect handling of GPIO bitmap Janusz Krzysztofik
2018-09-26  7:50                                           ` Linus Walleij
2018-09-26  8:14                                           ` Marek Szyprowski
     [not found]                                           ` <7a4906d9-ffb1-f2af-07e7-d5815dcd0d8c@samsung.com>
2018-09-26  8:27                                             ` Marek Szyprowski
2018-10-12 19:09                                           ` [RFT PATCH] " Janusz Krzysztofik
2018-10-15  8:32                                             ` Marek Szyprowski
2018-10-15 10:29                                             ` Ulf Hansson
2018-10-15 14:27                                             ` Linus Walleij
2018-09-20 18:05                     ` [PATCH v7 4/4] gpiolib: Implement fast processing path in get/set array Dan Carpenter
2018-09-20 15:49                   ` Linus Walleij
2018-09-05 21:50             ` [PATCH v8 0/4] gpiolib: speed up GPIO array processing Janusz Krzysztofik
2018-09-05 21:50               ` [PATCH v8 1/4] gpiolib: Pass bitmaps, not integer arrays, to get/set array Janusz Krzysztofik
2018-09-05 21:50               ` [PATCH v8 2/4] gpiolib: Identify arrays matching GPIO hardware Janusz Krzysztofik
2018-09-05 21:50               ` [PATCH v8 3/4] gpiolib: Pass array info to get/set array functions Janusz Krzysztofik
2018-09-05 21:50               ` [PATCH v8 4/4] gpiolib: Implement fast processing path in get/set array Janusz Krzysztofik
2018-09-13  9:22               ` [PATCH v8 0/4] gpiolib: speed up GPIO array processing Linus Walleij
2018-09-19 18:08                 ` Linus Walleij
2018-11-21 11:08     ` Subject: [PATCH v4 0/4] mtd: rawnand: ams-delta: Use GPIO API for data I/O Janusz Krzysztofik
2018-11-21 11:08       ` [PATCH v4 1/4] ARM: OMAP1: ams-delta: Provide GPIO lookup table for NAND data port Janusz Krzysztofik
2018-11-23 17:02         ` Tony Lindgren
2018-11-21 11:08       ` [PATCH v4 2/4] mtd: rawnand: ams-delta: Request data port GPIO resource Janusz Krzysztofik
2018-11-21 11:08       ` [PATCH v4 3/4] mtd: rawnand: ams-delta: Use GPIO API for data I/O Janusz Krzysztofik
2018-11-21 14:53         ` Boris Brezillon
2018-11-21 11:08       ` [PATCH v4 4/4] ARM: OMAP1: ams-delta: Drop obsolete NAND resources Janusz Krzysztofik
2018-11-21 14:56       ` Subject: [PATCH v4 0/4] mtd: rawnand: ams-delta: Use GPIO API for data I/O Boris Brezillon
2018-11-23 17:03         ` Tony Lindgren
2018-12-07  8:04           ` Miquel Raynal
2018-12-07 16:10             ` Tony Lindgren

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