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: marcel.ziswiler@toradex.com, juliensu@mxic.com.tw,
linux-kernel@vger.kernel.org, frieder.schrempf@kontron.de,
gregkh@linuxfoundation.org, linux-mtd@lists.infradead.org,
masonccyang@mxic.com.tw, tglx@linutronix.de
Subject: [PATCH RFC 1/3] mtd: rawnand: Add support manufacturer postponed initialization
Date: Wed, 18 Sep 2019 15:56:24 +0800 [thread overview]
Message-ID: <1568793387-25199-1-git-send-email-masonccyang@mxic.com.tw> (raw)
Manufacturer postponed initialization is for MTD default call-back
function replacement for vendor soecific operation, i.e.,
_lock/_unlock, _suspend/_resume and so on.
Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
---
drivers/mtd/nand/raw/internals.h | 4 ++++
drivers/mtd/nand/raw/nand_base.c | 19 +++++++++++++++++++
2 files changed, 23 insertions(+)
diff --git a/drivers/mtd/nand/raw/internals.h b/drivers/mtd/nand/raw/internals.h
index cba6fe7..505dd46 100644
--- a/drivers/mtd/nand/raw/internals.h
+++ b/drivers/mtd/nand/raw/internals.h
@@ -42,6 +42,9 @@
* is here to let vendor specific code release those resources.
* @fixup_onfi_param_page: apply vendor specific fixups to the ONFI parameter
* page. This is called after the checksum is verified.
+ * @post_init: postponed initialization is for MTD default call-back function
+ * replacement for vendor specific operation i.e., _lock/_unlock,
+ * _suspend/_resume and so on.
*/
struct nand_manufacturer_ops {
void (*detect)(struct nand_chip *chip);
@@ -49,6 +52,7 @@ struct nand_manufacturer_ops {
void (*cleanup)(struct nand_chip *chip);
void (*fixup_onfi_param_page)(struct nand_chip *chip,
struct nand_onfi_params *p);
+ void (*post_init)(struct nand_chip *chip);
};
/**
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 91f046d..7835b81 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4619,6 +4619,21 @@ static int nand_manufacturer_init(struct nand_chip *chip)
}
/*
+ * Manufacturer postponed initialization. This function is called for all NANDs
+ * whose MTD default call-back function replacement is needed.
+ * Manufacturer drivers should put all their specific postponed initialization
+ * code in their ->post_init() hook.
+ */
+static void nand_manufacturer_post_init(struct nand_chip *chip)
+{
+ if (!chip->manufacturer.desc || !chip->manufacturer.desc->ops ||
+ !chip->manufacturer.desc->ops->post_init)
+ return;
+
+ return chip->manufacturer.desc->ops->post_init(chip);
+}
+
+/*
* Manufacturer cleanup. This function is called for all NANDs including
* ONFI and JEDEC compliant ones.
* Manufacturer drivers should put all their specific cleanup code in their
@@ -5812,6 +5827,10 @@ static int nand_scan_tail(struct nand_chip *chip)
goto err_nanddev_cleanup;
}
+ nand_select_target(chip, 0);
+ nand_manufacturer_post_init(chip);
+ nand_deselect_target(chip);
+
/* Check, if we should skip the bad block table scan */
if (chip->options & NAND_SKIP_BBTSCAN)
return 0;
--
1.9.1
next reply other threads:[~2019-09-18 7:31 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-18 7:56 Mason Yang [this message]
2019-09-18 7:56 ` [PATCH RFC 2/3] mtd: rawnand: Add support Macronix Block Protection function Mason Yang
2019-10-07 8:45 ` Miquel Raynal
2019-10-07 9:24 ` Miquel Raynal
2019-10-08 2:33 ` masonccyang
2019-10-08 15:02 ` Miquel Raynal
2019-10-15 6:47 ` masonccyang
[not found] ` <OFB4F10613.467EB346-ON48258494.0020403E-48258494.002550A2@LocalDomain>
2019-10-21 7:23 ` masonccyang
2019-10-21 7:44 ` Boris Brezillon
2019-10-21 8:40 ` masonccyang
2019-10-21 8:56 ` Boris Brezillon
2019-10-21 9:07 ` masonccyang
2019-09-18 7:56 ` [PATCH RFC 3/3] mtd: rawnand: Add support Macronix power down mode Mason Yang
2019-10-07 8:45 ` Miquel Raynal
2019-10-08 2:06 ` masonccyang
2019-10-08 7:28 ` Boris Brezillon
2019-10-15 2:33 ` masonccyang
2019-10-15 7:56 ` Miquel Raynal
2019-10-16 6:55 ` masonccyang
2019-10-25 3:11 ` masonccyang
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