From: Mason Yang <masonccyang@mxic.com.tw> To: miquel.raynal@bootlin.com, richard@nod.at, marek.vasut@gmail.com, dwmw2@infradead.org, bbrezillon@kernel.org, computersforpeace@gmail.com, vigneshr@ti.com Cc: juliensu@mxic.com.tw, linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, masonccyang@mxic.com.tw Subject: [PATCH v2 3/4] mtd: rawnand: Add support manufacturer specific suspend/resume operation Date: Mon, 28 Oct 2019 17:55:26 +0800 [thread overview] Message-ID: <1572256527-5074-4-git-send-email-masonccyang@mxic.com.tw> (raw) In-Reply-To: <1572256527-5074-1-git-send-email-masonccyang@mxic.com.tw> Patch nand_suspend() & nand_resume() for manufacturer specific suspend/resume operation. Signed-off-by: Mason Yang <masonccyang@mxic.com.tw> --- drivers/mtd/nand/raw/nand_base.c | 9 +++++++-- include/linux/mtd/rawnand.h | 2 ++ 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index 5e318ff..2a9c5bb 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -4323,6 +4323,8 @@ static int nand_suspend(struct mtd_info *mtd) struct nand_chip *chip = mtd_to_nand(mtd); mutex_lock(&chip->lock); + if (chip->_suspend) + chip->_suspend(chip); chip->suspended = 1; mutex_unlock(&chip->lock); @@ -4338,11 +4340,14 @@ static void nand_resume(struct mtd_info *mtd) struct nand_chip *chip = mtd_to_nand(mtd); mutex_lock(&chip->lock); - if (chip->suspended) + if (chip->suspended) { + if (chip->_resume) + chip->_resume(chip); chip->suspended = 0; - else + } else { pr_err("%s called for a chip which is not in suspended state\n", __func__); + } mutex_unlock(&chip->lock); } diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 2430ecd..6b14041 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1117,6 +1117,8 @@ struct nand_chip { struct mutex lock; unsigned int suspended : 1; + int (*_suspend)(struct nand_chip *chip); + void (*_resume)(struct nand_chip *chip); uint8_t *oob_poi; struct nand_controller *controller; -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Mason Yang <masonccyang@mxic.com.tw> To: miquel.raynal@bootlin.com, richard@nod.at, marek.vasut@gmail.com, dwmw2@infradead.org, bbrezillon@kernel.org, computersforpeace@gmail.com, vigneshr@ti.com Cc: juliensu@mxic.com.tw, masonccyang@mxic.com.tw, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/4] mtd: rawnand: Add support manufacturer specific suspend/resume operation Date: Mon, 28 Oct 2019 17:55:26 +0800 [thread overview] Message-ID: <1572256527-5074-4-git-send-email-masonccyang@mxic.com.tw> (raw) In-Reply-To: <1572256527-5074-1-git-send-email-masonccyang@mxic.com.tw> Patch nand_suspend() & nand_resume() for manufacturer specific suspend/resume operation. Signed-off-by: Mason Yang <masonccyang@mxic.com.tw> --- drivers/mtd/nand/raw/nand_base.c | 9 +++++++-- include/linux/mtd/rawnand.h | 2 ++ 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index 5e318ff..2a9c5bb 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -4323,6 +4323,8 @@ static int nand_suspend(struct mtd_info *mtd) struct nand_chip *chip = mtd_to_nand(mtd); mutex_lock(&chip->lock); + if (chip->_suspend) + chip->_suspend(chip); chip->suspended = 1; mutex_unlock(&chip->lock); @@ -4338,11 +4340,14 @@ static void nand_resume(struct mtd_info *mtd) struct nand_chip *chip = mtd_to_nand(mtd); mutex_lock(&chip->lock); - if (chip->suspended) + if (chip->suspended) { + if (chip->_resume) + chip->_resume(chip); chip->suspended = 0; - else + } else { pr_err("%s called for a chip which is not in suspended state\n", __func__); + } mutex_unlock(&chip->lock); } diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 2430ecd..6b14041 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -1117,6 +1117,8 @@ struct nand_chip { struct mutex lock; unsigned int suspended : 1; + int (*_suspend)(struct nand_chip *chip); + void (*_resume)(struct nand_chip *chip); uint8_t *oob_poi; struct nand_controller *controller; -- 1.9.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/
next prev parent reply other threads:[~2019-10-28 9:29 UTC|newest] Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-10-28 9:55 [PATCH v2 0/4] mtd: rawnand: Add support Macronix Block Protection & deep power down mode Mason Yang 2019-10-28 9:55 ` Mason Yang 2019-10-28 9:55 ` [PATCH v2 1/4] mtd: rawnand: Add support manufacturer specific lock/unlock operatoin Mason Yang 2019-10-28 9:55 ` Mason Yang 2019-10-30 3:22 ` kbuild test robot 2019-10-30 3:22 ` kbuild test robot 2019-10-30 3:22 ` kbuild test robot 2020-01-09 16:41 ` Miquel Raynal 2020-01-09 16:41 ` Miquel Raynal 2020-02-17 8:05 ` masonccyang 2020-02-17 8:05 ` masonccyang 2020-01-09 19:30 ` Boris Brezillon 2020-01-09 19:30 ` Boris Brezillon 2020-02-17 8:14 ` masonccyang 2020-02-17 8:14 ` masonccyang 2020-02-17 9:01 ` Miquel Raynal 2020-02-17 9:01 ` Miquel Raynal 2020-02-17 9:22 ` Boris Brezillon 2020-02-17 9:22 ` Boris Brezillon 2020-02-18 3:13 ` masonccyang 2020-02-18 3:13 ` masonccyang 2019-10-28 9:55 ` [PATCH v2 2/4] mtd: rawnand: Add support Macronix Block Protection function Mason Yang 2019-10-28 9:55 ` Mason Yang 2020-01-09 16:47 ` Miquel Raynal 2020-01-09 16:47 ` Miquel Raynal 2020-02-17 8:24 ` masonccyang 2020-02-17 8:24 ` masonccyang 2019-10-28 9:55 ` Mason Yang [this message] 2019-10-28 9:55 ` [PATCH v2 3/4] mtd: rawnand: Add support manufacturer specific suspend/resume operation Mason Yang 2019-10-30 5:56 ` kbuild test robot 2019-10-30 5:56 ` kbuild test robot 2019-10-30 5:56 ` kbuild test robot 2020-01-09 16:53 ` Miquel Raynal 2020-01-09 16:53 ` Miquel Raynal 2019-10-28 9:55 ` [PATCH v2 4/4] mtd: rawnand: Add support Macronix deep power down mode Mason Yang 2019-10-28 9:55 ` Mason Yang 2019-10-31 7:36 ` kbuild test robot 2019-10-31 7:36 ` kbuild test robot 2019-10-31 7:36 ` kbuild test robot 2019-10-31 7:36 ` [RFC PATCH] mtd: rawnand: nand_power_down_op() can be static kbuild test robot 2019-10-31 7:36 ` kbuild test robot 2019-10-31 7:36 ` kbuild test robot 2020-01-09 17:01 ` [PATCH v2 4/4] mtd: rawnand: Add support Macronix deep power down mode Miquel Raynal 2020-01-09 17:01 ` Miquel Raynal 2020-02-21 2:44 ` masonccyang 2020-02-21 2:44 ` masonccyang
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