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[93.181.165.181]) by smtp.gmail.com with ESMTPSA id o4-v6sm2438561ljc.67.2018.08.06.15.29.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 06 Aug 2018 15:29:26 -0700 (PDT) From: Janusz Krzysztofik To: Boris Brezillon , Linus Walleij Cc: Jonathan Corbet , Miquel Raynal , Richard Weinberger , David Woodhouse , Brian Norris , Marek Vasut , Tony Lindgren , Aaro Koskinen , linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-mtd@lists.infradead.org, linux-doc@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH v2] mtd: rawnand: ams-delta: Use GPIO API for data I/O Date: Tue, 7 Aug 2018 00:29:06 +0200 Message-Id: <20180806222918.12644-1-jmkrzyszt@gmail.com> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20180718235710.18242-1-jmkrzyszt@gmail.com> References: <20180718235710.18242-1-jmkrzyszt@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Implement the idea suggested by Artem Bityutskiy and Tony Lindgren, described in commit b027274d2e3a ("mtd: ams-delta: fix request_mem_region() failure"). Use pure GPIO API as suggested by Boris Brezillon. Janusz Krzysztofik (12): mtd: rawnand: ams-delta: Assign mtd->dev.parent, not mtd->owner mtd: rawnand: ams-delta: Use private structure ARM: OMAP1: ams-delta: Provide GPIO lookup table for NAND data port mtd: rawnand: ams-delta: request data port GPIO resource mtd: rawnand: ams-delta: use GPIO API for data read/write ARM: OMAP1: ams-delta: drop obsolete NAND resources mtd: rawnand: ams-delta: Set port direction once per transfer mtd: rawnand: ams-delta: Simplify pointer resolution on read/write gpiolib: Identify GPIO descriptor arrays with direct mapping gpiolib: Introduce bitmap get/set array API extension mtd: rawnand: ams-delta: Use GPIO API bitmap extension gpiolib: Add fast processing path to bitmap API functions Changelog: v2: [RFC PATCH v2 00/12] mtd: rawnand: ams-delta: Use GPIO API for data I/O - renamed from former [RFC PATCH 0/8] mtd: rawnand: ams-delta: Use gpio-omap accessors for data I/O [RFC PATCH v2 01/12] mtd: rawnand: ams-delta: Assign mtd->dev.parent, not mtd->owner - split out from former [RFC PATCH 1/8] on Boris request, thanks. [RFC PATCH v2 02/12] mtd: rawnand: ams-delta: Use private structure - remaining part of the former [RFC PATCH 1/8]. [RFC PATCH v2 03/12] ARM: OMAP1: ams-delta: Provide GPIO lookup table for NAND data port - split out from former [RFC PATCH 5/8] on Boris requesst, thanks, [RFC PATCH v2 04/12] mtd: rawnand: ams-delta: request data port GPIO resource - remaining part of the former [RFC PATCH 5/8], [RFC PATCH v2 05/12] mtd: rawnand: ams-delta: use GPIO API for data read/write - reworked from former [RFC PATCH 8/8] on Boris requesst to use pure GPIO API, thanks, - moved up in front of former [RFC PATCH 3/8] on Boris request, thanks. [RFC PATCH v2 06/12] ARM: OMAP1: ams-delta: drop obsolete NAND resources - split out from former [RFC PATCH 8/8]. [RFC PATCH v2 07/12] mtd: rawnand: ams-delta: Set port direction once per transfer - reworked from former [RFC PATCH 3/8] on top of [RFC PATCH v2 05/12]. [RFC PATCH v2 08/12] mtd: rawnand: ams-delta: Simplify pointer resolution on read/write - reworked from former [RFC PATCH 4/8] on top of [RFC PATCH v2 08/12], - renamed from 'Optimize' to 'Simplify' on Boris request, thanks. [RFC PATCH v2 09/12] gpiolib: Identify GPIO descriptor arrays with direct mapping - new patch. [RFC PATCH v2 10/12] gpiolib: Introduce bitmap get/set array API extension - new patch. [RFC PATCH v2 11/12] mtd: rawnand: ams-delta: Use GPIO API bitmap extension - new patch. [RFC PATCH v2 12/12] gpiolib: Add fast processing path to bitmap API functions - new patch. Removed from the series: [RFC PATCH 2/8] mtd: rawnand: ams-delta: Write protect device during probe - postponed on Boris request, thanks. [RFC PATCH 6/8] gpio: omap: Add get/set_multiple() callbacks - already applied by Linux in linux-gpio tree, thanks. [RFC PATCH 7/8] mtd: rawnand: ams-delta: Check sanity of data GPIO resource - most controversial one, no longer needed after switching to GPIO API. diffstat: Documentation/driver-api/gpio/consumer.rst | 36 ++ arch/arm/mach-omap1/board-ams-delta.c | 22 - drivers/gpio/gpiolib.c | 237 +++++++++++++++++++ drivers/mtd/nand/raw/ams-delta.c | 350 +++++++++++++++-------------- include/linux/gpio/consumer.h | 15 + 5 files changed, 485 insertions(+), 175 deletions(-)