From: Boris Brezillon <boris.brezillon@bootlin.com>
To: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Marek Vasut <marek.vasut@gmail.com>,
Tony Lindgren <tony@atomide.com>,
Aaro Koskinen <aaro.koskinen@iki.fi>,
Linus Walleij <linus.walleij@linaro.org>,
linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
linux-mtd@lists.infradead.org, linux-gpio@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 7/7] mtd: rawnand: ams-delta: use GPIO API for data I/O
Date: Thu, 16 Aug 2018 09:39:49 +0200 [thread overview]
Message-ID: <20180816093949.7f59519a@bbrezillon> (raw)
In-Reply-To: <20180813223448.21316-8-jmkrzyszt@gmail.com>
On Tue, 14 Aug 2018 00:34:48 +0200
Janusz Krzysztofik <jmkrzyszt@gmail.com> wrote:
> Don't readw()/writew() data directly from/to GPIO port which is under
> control of gpio-omap driver, use GPIO API instead.
>
> Degrade of performance on Amstrad Delta is significant, can be
> recognized as a regression, that's why I'm still submitting this patch
> as RFC.
>
> The driver should work with any 8+-bit bidirectional GPIO port, not
> only OMAP.
>
> Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> Exceprts fro timestamped boot logs showing performance degrade.
> Before the change:
> [ 5.469426] Creating 6 MTD partitions on "ams-delta-nand":
> [ 5.480909] 0x000000000000-0x000000380000 : "Kernel"
> [ 5.502659] 0x000000380000-0x0000003c0000 : "u-boot"
> [ 5.523055] 0x0000003c0000-0x000000400000 : "u-boot params"
> [ 5.543612] 0x000000400000-0x000000440000 : "Amstrad LDR"
> [ 5.564607] 0x000000440000-0x000001f40000 : "File system"
> [ 5.601760] 0x000001f40000-0x000002000000 : "PBL reserved"
> [ 5.624369] usbcore: registered new interface driver dm9601
> [ 5.636233] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [ 5.649191] ohci-omap: OHCI OMAP driver
> [ 5.660713] ohci ohci: OMAP OHCI
> [ 5.671299] ohci ohci: new USB bus registered, assigned bus number 1
> [ 5.686862] ohci ohci: irq 54, io mem 0xfffba000
> [ 5.785897] hub 1-0:1.0: USB hub found
> [ 5.797856] hub 1-0:1.0: 3 ports detected
> [ 5.817576] usbcore: registered new interface driver usb-storage
> [ 5.832551] ams-delta-serio ams-delta-serio: incomplete constraints, dummy supplies not allowed
> [ 5.858588] ams-delta-serio ams-delta-serio: regulator request failed (-19)
> [ 5.879312] input: omap-keypad as /devices/platform/omap-keypad/input/input0
> [ 5.902490] omap_rtc omap_rtc: already running
> [ 5.922929] omap_rtc omap_rtc: registered as rtc0
> [ 5.945570] softdog: initialized. soft_noboot=0 soft_margin=60 sec soft_panic=0 (nowayout=0)
> [ 5.976712] usbcore: registered new interface driver btusb
> [ 6.007348] cx20442-codec cx20442-codec: incomplete constraints, dummy supplies not allowed
> [ 6.040575] cx20442-codec cx20442-codec: failed to get POR supply (-19)
> [ 6.060916] cx20442-codec cx20442-codec: ASoC: failed to probe component -517
> [ 6.083486] ams-delta-audio ams-delta-audio: ASoC: failed to instantiate card -517
> [ 6.121850] ams-delta-audio ams-delta-audio: snd_soc_register_card failed (-517)
> [ 6.163047] NET: Registered protocol family 17
> [ 6.182770] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
> [ 6.203517] Bluetooth: BNEP socket layer initialized
> [ 6.283017] serial8250 serial8250.1: Linked as a consumer to regulator.1
> [ 6.306113] usb 1-1: new full-speed USB device number 2 using ohci
> [ 6.328825] clock: disabling unused clocks to save power
> [ 6.350426] Skipping reset check for DSP domain clock "dsptim_ck"
> [ 6.372272] Skipping reset check for DSP domain clock "dspxor_ck"
> [ 6.393712] Skipping reset check for DSP domain clock "dspper_ck"
> [ 6.428311] ams-delta-serio ams-delta-serio: Linked as a consumer to regulator.2
> [ 6.467801] serio serio0: AMS DELTA keyboard adapter
> [ 6.492511] cx20442-codec cx20442-codec: Linked as a consumer to regulator.1
> [ 6.527382] ams-delta-audio ams-delta-audio: cx20442-voice <-> omap-mcbsp.1 mapping ok
> [ 6.577387] input: AMS_DELTA hook_switch as /devices/platform/ams-delta-audio/sound/card0/input1
> [ 6.627497] input: AT Raw Set 2 keyboard as /devices/platform/ams-delta-serio/serio0/input/input2
> [ 6.673663] omap_rtc omap_rtc: setting system clock to 2013-02-09 07:22:13 UTC (1360394533)
> [ 6.715895] modem_nreset: incomplete constraints, leaving on
> [ 6.738677] ALSA device list:
> [ 6.758398] #0: AMS_DELTA
> [ 7.036234] dm9601 1-1:1.0 eth0: register 'dm9601' at usb-ohci-1, Davicom DM96xx USB 10/100 Ethernet, 00:60:6e:00:00:11
> [ 133.860599] random: crng init done
> [ 138.275853] VFS: Mounted root (jffs2 filesystem) on device 31:4.
>
> After the change:
> [ 6.261107] Creating 6 MTD partitions on "ams-delta-nand":
> [ 6.272046] 0x000000000000-0x000000380000 : "Kernel"
> [ 6.294436] 0x000000380000-0x0000003c0000 : "u-boot"
> [ 6.314454] 0x0000003c0000-0x000000400000 : "u-boot params"
> [ 6.335353] 0x000000400000-0x000000440000 : "Amstrad LDR"
> [ 6.356669] 0x000000440000-0x000001f40000 : "File system"
> [ 6.393713] 0x000001f40000-0x000002000000 : "PBL reserved"
> [ 6.416771] usbcore: registered new interface driver dm9601
> [ 6.428631] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [ 6.441533] ohci-omap: OHCI OMAP driver
> [ 6.452758] ohci ohci: OMAP OHCI
> [ 6.463300] ohci ohci: new USB bus registered, assigned bus number 1
> [ 6.478817] ohci ohci: irq 54, io mem 0xfffba000
> [ 6.580520] hub 1-0:1.0: USB hub found
> [ 6.592424] hub 1-0:1.0: 3 ports detected
> [ 6.612363] usbcore: registered new interface driver usb-storage
> [ 6.627358] ams-delta-serio ams-delta-serio: incomplete constraints, dummy supplies not allowed
> [ 6.653296] ams-delta-serio ams-delta-serio: regulator request failed (-19)
> [ 6.674219] input: omap-keypad as /devices/platform/omap-keypad/input/input0
> [ 6.697910] omap_rtc omap_rtc: already running
> [ 6.718376] omap_rtc omap_rtc: registered as rtc0
> [ 6.740942] softdog: initialized. soft_noboot=0 soft_margin=60 sec soft_panic=0 (nowayout=0)
> [ 6.772085] usbcore: registered new interface driver btusb
> [ 6.803187] cx20442-codec cx20442-codec: incomplete constraints, dummy supplies not allowed
> [ 6.836386] cx20442-codec cx20442-codec: failed to get POR supply (-19)
> [ 6.856730] cx20442-codec cx20442-codec: ASoC: failed to probe component -517
> [ 6.879234] ams-delta-audio ams-delta-audio: ASoC: failed to instantiate card -517
> [ 6.917325] ams-delta-audio ams-delta-audio: snd_soc_register_card failed (-517)
> [ 6.958519] NET: Registered protocol family 17
> [ 6.978224] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
> [ 6.998989] Bluetooth: BNEP socket layer initialized
> [ 7.077593] serial8250 serial8250.1: Linked as a consumer to regulator.1
> [ 7.100678] usb 1-1: new full-speed USB device number 2 using ohci
> [ 7.123429] clock: disabling unused clocks to save power
> [ 7.145074] Skipping reset check for DSP domain clock "dsptim_ck"
> [ 7.166983] Skipping reset check for DSP domain clock "dspxor_ck"
> [ 7.188434] Skipping reset check for DSP domain clock "dspper_ck"
> [ 7.223321] ams-delta-serio ams-delta-serio: Linked as a consumer to regulator.2
> [ 7.262882] serio serio0: AMS DELTA keyboard adapter
> [ 7.287656] cx20442-codec cx20442-codec: Linked as a consumer to regulator.1
> [ 7.322824] ams-delta-audio ams-delta-audio: cx20442-voice <-> omap-mcbsp.1 mapping ok
> [ 7.373165] input: AMS_DELTA hook_switch as /devices/platform/ams-delta-audio/sound/card0/input1
> [ 7.423520] input: AT Raw Set 2 keyboard as /devices/platform/ams-delta-serio/serio0/input/input2
> [ 7.469578] omap_rtc omap_rtc: setting system clock to 2013-02-09 07:34:10 UTC (1360395250)
> [ 7.511830] modem_nreset: incomplete constraints, leaving on
> [ 7.534812] ALSA device list:
> [ 7.554541] #0: AMS_DELTA
> [ 7.971899] dm9601 1-1:1.0 eth0: register 'dm9601' at usb-ohci-1, Davicom DM96xx USB 10/100 Ethernet, 00:60:6e:00:00:11
> [ 133.935226] random: crng init done
> [ 320.764645] VFS: Mounted root (jffs2 filesystem) on device 31:4.
>
> I think most of the overhead is in iterations performed both inside and
> outside get/set array functions:
> - building a mask for get_multiple() and transfering results to value array
> in gpiod_get_array_value_complex(), then again from the array by a caller,
> - building a value array by the caller, the building a mask and tranferiing
> values from array to bitmap for .set_multiple() in
> gpiod_set_array_value_comples().
Sorry but we need more than just speculations here, and using
bootlog timestamps is clearly not enough to prove any of these
suppositions. You'll have to setup ftrace/perf and trigger read/write
requests (using nanddump/nandwrite) to figure out where the overhead
comes from.
Also, I'd recommend keeping this patch for the series changing the GPIO
API.
next prev parent reply other threads:[~2018-08-16 7:40 UTC|newest]
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 [this message]
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 ` [PATCH 2/2] gpiolib: Fix array members of same chip processed separately Janusz Krzysztofik
2018-09-24 8:13 ` 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180816093949.7f59519a@bbrezillon \
--to=boris.brezillon@bootlin.com \
--cc=aaro.koskinen@iki.fi \
--cc=computersforpeace@gmail.com \
--cc=dwmw2@infradead.org \
--cc=jmkrzyszt@gmail.com \
--cc=linus.walleij@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=linux-omap@vger.kernel.org \
--cc=marek.vasut@gmail.com \
--cc=miquel.raynal@bootlin.com \
--cc=richard@nod.at \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).