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kernel: backport mtd patch adding of_platform_populate() calls

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This is required for non-parser drivers handling MTD devices.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This commit is contained in:
Rafał Miłecki
2022-07-08 07:58:20 +02:00
parent 639419ec4f
commit 41e1e838fb
12 changed files with 174 additions and 28 deletions
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6
target/linux/ath79/patches-5.10/401-mtd-nor-support-mtd-name-from-device-tree.patch
View File

@@ -10,7 +10,7 @@ Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -3156,6 +3156,7 @@ int spi_nor_scan(struct spi_nor *nor, co
@@ -3141,6 +3141,7 @@ int spi_nor_scan(struct spi_nor *nor, co
struct device *dev = nor->dev;
struct mtd_info *mtd = &nor->mtd;
struct device_node *np = spi_nor_get_flash_node(nor);
@@ -18,7 +18,7 @@ Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
int ret;
int i;
@@ -3210,7 +3211,12 @@ int spi_nor_scan(struct spi_nor *nor, co
@@ -3195,7 +3196,12 @@ int spi_nor_scan(struct spi_nor *nor, co
if (ret)
return ret;
@@ -34,7 +34,7 @@ Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
mtd->type = MTD_NORFLASH;
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -778,6 +778,17 @@ out_error:
@@ -788,6 +788,17 @@ out_error:
*/
static void mtd_set_dev_defaults(struct mtd_info *mtd)
{

6
target/linux/ath79/patches-5.15/401-mtd-nor-support-mtd-name-from-device-tree.patch
View File

@@ -10,7 +10,7 @@ Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -3110,6 +3110,7 @@ int spi_nor_scan(struct spi_nor *nor, co
@@ -3095,6 +3095,7 @@ int spi_nor_scan(struct spi_nor *nor, co
struct device *dev = nor->dev;
struct mtd_info *mtd = &nor->mtd;
struct device_node *np = spi_nor_get_flash_node(nor);
@@ -18,7 +18,7 @@ Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
int ret;
int i;
@@ -3164,7 +3165,12 @@ int spi_nor_scan(struct spi_nor *nor, co
@@ -3149,7 +3150,12 @@ int spi_nor_scan(struct spi_nor *nor, co
if (ret)
return ret;
@@ -34,7 +34,7 @@ Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
mtd->type = MTD_NORFLASH;
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -778,6 +778,17 @@ out_error:
@@ -788,6 +788,17 @@ out_error:
*/
static void mtd_set_dev_defaults(struct mtd_info *mtd)
{

72
target/linux/generic/backport-5.10/412-v5.19-mtd-call-of_platform_populate-for-MTD-partitions.patch Normal file
View File

@@ -0,0 +1,72 @@
From bcdf0315a61a29eb753a607d3a85a4032de72d94 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Tue, 10 May 2022 15:12:59 +0200
Subject: [PATCH] mtd: call of_platform_populate() for MTD partitions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Until this change MTD subsystem supported handling partitions only with
MTD partitions parsers. That's a specific / limited API designed around
partitions.
Some MTD partitions may however require different handling. They may
contain specific data that needs to be parsed and somehow extracted. For
that purpose MTD subsystem should allow binding of standard platform
drivers.
An example can be U-Boot (sub)partition with environment variables.
There exist a "u-boot,env" DT binding for MTD (sub)partition that
requires an NVMEM driver.
Ref: 5db1c2dbc04c ("dt-bindings: nvmem: add U-Boot environment variables binding")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220510131259.555-1-zajec5@gmail.com
---
drivers/mtd/mtdpart.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -17,6 +17,7 @@
#include <linux/mtd/partitions.h>
#include <linux/err.h>
#include <linux/of.h>
+#include <linux/of_platform.h>
#include "mtdcore.h"
@@ -578,10 +579,16 @@ static int mtd_part_of_parse(struct mtd_
struct mtd_part_parser *parser;
struct device_node *np;
struct property *prop;
+ struct device *dev;
const char *compat;
const char *fixed = "fixed-partitions";
int ret, err = 0;
+ dev = &master->dev;
+ /* Use parent device (controller) if the top level MTD is not registered */
+ if (!IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER) && !mtd_is_partition(master))
+ dev = master->dev.parent;
+
np = mtd_get_of_node(master);
if (mtd_is_partition(master))
of_node_get(np);
@@ -594,6 +601,7 @@ static int mtd_part_of_parse(struct mtd_
continue;
ret = mtd_part_do_parse(parser, master, pparts, NULL);
if (ret > 0) {
+ of_platform_populate(np, NULL, NULL, dev);
of_node_put(np);
return ret;
}
@@ -601,6 +609,7 @@ static int mtd_part_of_parse(struct mtd_
if (ret < 0 && !err)
err = ret;
}
+ of_platform_populate(np, NULL, NULL, dev);
of_node_put(np);
/*

72
target/linux/generic/backport-5.15/400-v5.19-mtd-call-of_platform_populate-for-MTD-partitions.patch Normal file
View File

@@ -0,0 +1,72 @@
From bcdf0315a61a29eb753a607d3a85a4032de72d94 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Tue, 10 May 2022 15:12:59 +0200
Subject: [PATCH] mtd: call of_platform_populate() for MTD partitions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Until this change MTD subsystem supported handling partitions only with
MTD partitions parsers. That's a specific / limited API designed around
partitions.
Some MTD partitions may however require different handling. They may
contain specific data that needs to be parsed and somehow extracted. For
that purpose MTD subsystem should allow binding of standard platform
drivers.
An example can be U-Boot (sub)partition with environment variables.
There exist a "u-boot,env" DT binding for MTD (sub)partition that
requires an NVMEM driver.
Ref: 5db1c2dbc04c ("dt-bindings: nvmem: add U-Boot environment variables binding")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220510131259.555-1-zajec5@gmail.com
---
drivers/mtd/mtdpart.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -17,6 +17,7 @@
#include <linux/mtd/partitions.h>
#include <linux/err.h>
#include <linux/of.h>
+#include <linux/of_platform.h>
#include "mtdcore.h"
@@ -577,10 +578,16 @@ static int mtd_part_of_parse(struct mtd_
struct mtd_part_parser *parser;
struct device_node *np;
struct property *prop;
+ struct device *dev;
const char *compat;
const char *fixed = "fixed-partitions";
int ret, err = 0;
+ dev = &master->dev;
+ /* Use parent device (controller) if the top level MTD is not registered */
+ if (!IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER) && !mtd_is_partition(master))
+ dev = master->dev.parent;
+
np = mtd_get_of_node(master);
if (mtd_is_partition(master))
of_node_get(np);
@@ -593,6 +600,7 @@ static int mtd_part_of_parse(struct mtd_
continue;
ret = mtd_part_do_parse(parser, master, pparts, NULL);
if (ret > 0) {
+ of_platform_populate(np, NULL, NULL, dev);
of_node_put(np);
return ret;
}
@@ -600,6 +608,7 @@ static int mtd_part_of_parse(struct mtd_
if (ret < 0 && !err)
err = ret;
}
+ of_platform_populate(np, NULL, NULL, dev);
of_node_put(np);
/*

2
target/linux/generic/hack-5.10/402-mtd-blktrans-call-add-disks-after-mtd-device.patch
View File

@@ -77,7 +77,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
#include "mtdcore.h"
@@ -851,6 +852,8 @@ int mtd_device_parse_register(struct mtd
@@ -861,6 +862,8 @@ int mtd_device_parse_register(struct mtd
register_reboot_notifier(&mtd->reboot_notifier);
}

2
target/linux/generic/hack-5.10/420-mtd-set-rootfs-to-be-root-dev.patch
View File

@@ -20,7 +20,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
#include <linux/nvmem-provider.h>
#include <linux/mtd/mtd.h>
@@ -694,6 +695,19 @@ int add_mtd_device(struct mtd_info *mtd)
@@ -704,6 +705,19 @@ int add_mtd_device(struct mtd_info *mtd)
of this try_ nonsense, and no bitching about it
either. :) */
__module_get(THIS_MODULE);

11
target/linux/generic/pending-5.10/400-mtd-mtdsplit-support.patch
View File

@@ -28,20 +28,21 @@
depends on m
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -15,10 +15,12 @@
@@ -15,11 +15,13 @@
#include <linux/kmod.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#include <linux/magic.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include "mtdcore.h"
+#include "mtdsplit/mtdsplit.h"
/*
* MTD methods which simply translate the effective address and pass through
@@ -236,6 +238,146 @@ static int mtd_add_partition_attrs(struc
@@ -237,6 +239,146 @@ static int mtd_add_partition_attrs(struc
return ret;
}
@@ -188,7 +189,7 @@
int mtd_add_partition(struct mtd_info *parent, const char *name,
long long offset, long long length)
{
@@ -274,6 +416,7 @@ int mtd_add_partition(struct mtd_info *p
@@ -275,6 +417,7 @@ int mtd_add_partition(struct mtd_info *p
if (ret)
goto err_remove_part;
@@ -196,7 +197,7 @@
mtd_add_partition_attrs(child);
return 0;
@@ -422,6 +565,7 @@ int add_mtd_partitions(struct mtd_info *
@@ -423,6 +566,7 @@ int add_mtd_partitions(struct mtd_info *
goto err_del_partitions;
}
@@ -204,7 +205,7 @@
mtd_add_partition_attrs(child);
/* Look for subpartitions */
@@ -438,31 +582,6 @@ err_del_partitions:
@@ -439,31 +583,6 @@ err_del_partitions:
return ret;
}

6
target/linux/generic/pending-5.10/402-mtd-spi-nor-write-support-for-minor-aligned-partitions.patch
View File

@@ -106,7 +106,7 @@ Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
&dev_attr_oobsize.attr,
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -40,6 +40,7 @@ static struct mtd_info *allocate_partiti
@@ -41,6 +41,7 @@ static struct mtd_info *allocate_partiti
struct mtd_info *master = mtd_get_master(parent);
int wr_alignment = (parent->flags & MTD_NO_ERASE) ?
master->writesize : master->erasesize;
@@ -114,7 +114,7 @@ Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
u64 parent_size = mtd_is_partition(parent) ?
parent->part.size : parent->size;
struct mtd_info *child;
@@ -164,6 +165,7 @@ static struct mtd_info *allocate_partiti
@@ -165,6 +166,7 @@ static struct mtd_info *allocate_partiti
} else {
/* Single erase size */
child->erasesize = master->erasesize;
@@ -122,7 +122,7 @@ Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
}
/*
@@ -171,26 +173,39 @@ static struct mtd_info *allocate_partiti
@@ -172,26 +174,39 @@ static struct mtd_info *allocate_partiti
* exposes several regions with different erasesize. Adjust
* wr_alignment accordingly.
*/

2
target/linux/generic/pending-5.10/495-mtd-core-add-get_mtd_device_by_node.patch
View File

@@ -17,7 +17,7 @@ Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -1046,6 +1046,44 @@ out_unlock:
@@ -1056,6 +1056,44 @@ out_unlock:
}
EXPORT_SYMBOL_GPL(get_mtd_device_nm);

11
target/linux/generic/pending-5.15/400-mtd-mtdsplit-support.patch
View File

@@ -28,20 +28,21 @@
depends on m
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -15,10 +15,12 @@
@@ -15,11 +15,13 @@
#include <linux/kmod.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#include <linux/magic.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include "mtdcore.h"
+#include "mtdsplit/mtdsplit.h"
/*
* MTD methods which simply translate the effective address and pass through
@@ -235,6 +237,146 @@ static int mtd_add_partition_attrs(struc
@@ -236,6 +238,146 @@ static int mtd_add_partition_attrs(struc
return ret;
}
@@ -188,7 +189,7 @@
int mtd_add_partition(struct mtd_info *parent, const char *name,
long long offset, long long length)
{
@@ -273,6 +415,7 @@ int mtd_add_partition(struct mtd_info *p
@@ -274,6 +416,7 @@ int mtd_add_partition(struct mtd_info *p
if (ret)
goto err_remove_part;
@@ -196,7 +197,7 @@
mtd_add_partition_attrs(child);
return 0;
@@ -421,6 +564,7 @@ int add_mtd_partitions(struct mtd_info *
@@ -422,6 +565,7 @@ int add_mtd_partitions(struct mtd_info *
goto err_del_partitions;
}
@@ -204,7 +205,7 @@
mtd_add_partition_attrs(child);
/* Look for subpartitions */
@@ -437,31 +581,6 @@ err_del_partitions:
@@ -438,31 +582,6 @@ err_del_partitions:
return ret;
}

6
target/linux/generic/pending-5.15/402-mtd-spi-nor-write-support-for-minor-aligned-partitions.patch
View File

@@ -106,7 +106,7 @@ Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
&dev_attr_oobsize.attr,
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -40,6 +40,7 @@ static struct mtd_info *allocate_partiti
@@ -41,6 +41,7 @@ static struct mtd_info *allocate_partiti
struct mtd_info *master = mtd_get_master(parent);
int wr_alignment = (parent->flags & MTD_NO_ERASE) ?
master->writesize : master->erasesize;
@@ -114,7 +114,7 @@ Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
u64 parent_size = mtd_is_partition(parent) ?
parent->part.size : parent->size;
struct mtd_info *child;
@@ -164,6 +165,7 @@ static struct mtd_info *allocate_partiti
@@ -165,6 +166,7 @@ static struct mtd_info *allocate_partiti
} else {
/* Single erase size */
child->erasesize = master->erasesize;
@@ -122,7 +122,7 @@ Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
}
/*
@@ -171,26 +173,39 @@ static struct mtd_info *allocate_partiti
@@ -172,26 +174,39 @@ static struct mtd_info *allocate_partiti
* exposes several regions with different erasesize. Adjust
* wr_alignment accordingly.
*/

6
target/linux/pistachio/patches-5.10/401-mtd-nor-support-mtd-name-from-device-tree.patch
View File

@@ -10,7 +10,7 @@ Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -3156,6 +3156,7 @@ int spi_nor_scan(struct spi_nor *nor, co
@@ -3141,6 +3141,7 @@ int spi_nor_scan(struct spi_nor *nor, co
struct device *dev = nor->dev;
struct mtd_info *mtd = &nor->mtd;
struct device_node *np = spi_nor_get_flash_node(nor);
@@ -18,7 +18,7 @@ Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
int ret;
int i;
@@ -3210,7 +3211,12 @@ int spi_nor_scan(struct spi_nor *nor, co
@@ -3195,7 +3196,12 @@ int spi_nor_scan(struct spi_nor *nor, co
if (ret)
return ret;
@@ -34,7 +34,7 @@ Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com>
mtd->type = MTD_NORFLASH;
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -778,6 +778,17 @@ out_error:
@@ -788,6 +788,17 @@ out_error:
*/
static void mtd_set_dev_defaults(struct mtd_info *mtd)
{