diff --git a/include/kernel-6.6 b/include/kernel-6.6
index 485ec8eef..094066fe7 100644
--- a/include/kernel-6.6
+++ b/include/kernel-6.6
@@ -1,2 +1,2 @@
-LINUX_VERSION-6.6 = .51
-LINUX_KERNEL_HASH-6.6.51 = 1c0c9a14650879c4913efdbac428ba31a540c3d987155ddf34d33e11eca008b3
+LINUX_VERSION-6.6 = .52
+LINUX_KERNEL_HASH-6.6.52 = 1591ab348399d4aa53121158525056a69c8cf0fe0e90935b0095e9a58e37b4b8
diff --git a/target/linux/generic/backport-6.6/819-v6.8-0001-nvmem-Move-of_nvmem_layout_get_container-in-another-.patch b/target/linux/generic/backport-6.6/819-v6.8-0001-nvmem-Move-of_nvmem_layout_get_container-in-another-.patch
index 7ca426e87..0290d6489 100644
--- a/target/linux/generic/backport-6.6/819-v6.8-0001-nvmem-Move-of_nvmem_layout_get_container-in-another-.patch
+++ b/target/linux/generic/backport-6.6/819-v6.8-0001-nvmem-Move-of_nvmem_layout_get_container-in-another-.patch
@@ -42,7 +42,7 @@ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
return of_get_child_by_name(nvmem->dev.of_node, "nvmem-layout");
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h
-@@ -241,7 +241,6 @@ struct nvmem_cell *of_nvmem_cell_get(str
+@@ -242,7 +242,6 @@ struct nvmem_cell *of_nvmem_cell_get(str
const char *id);
struct nvmem_device *of_nvmem_device_get(struct device_node *np,
const char *name);
@@ -50,7 +50,7 @@ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
#else
static inline struct nvmem_cell *of_nvmem_cell_get(struct device_node *np,
const char *id)
-@@ -254,12 +253,6 @@ static inline struct nvmem_device *of_nv
+@@ -255,12 +254,6 @@ static inline struct nvmem_device *of_nv
{
return ERR_PTR(-EOPNOTSUPP);
}
diff --git a/target/linux/generic/backport-6.6/819-v6.8-0005-nvmem-core-Rework-layouts-to-become-regular-devices.patch b/target/linux/generic/backport-6.6/819-v6.8-0005-nvmem-core-Rework-layouts-to-become-regular-devices.patch
index 1a41050d0..c846c485e 100644
--- a/target/linux/generic/backport-6.6/819-v6.8-0005-nvmem-core-Rework-layouts-to-become-regular-devices.patch
+++ b/target/linux/generic/backport-6.6/819-v6.8-0005-nvmem-core-Rework-layouts-to-become-regular-devices.patch
@@ -330,7 +330,7 @@ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
}
EXPORT_SYMBOL_GPL(nvmem_cell_put);
-@@ -2103,11 +2044,22 @@ EXPORT_SYMBOL_GPL(nvmem_dev_name);
+@@ -2116,11 +2057,22 @@ EXPORT_SYMBOL_GPL(nvmem_dev_size);
static int __init nvmem_init(void)
{
diff --git a/target/linux/generic/backport-6.6/819-v6.8-0010-nvmem-core-add-nvmem_dev_size-helper.patch b/target/linux/generic/backport-6.6/819-v6.8-0010-nvmem-core-add-nvmem_dev_size-helper.patch
deleted file mode 100644
index 93fd1ce6a..000000000
--- a/target/linux/generic/backport-6.6/819-v6.8-0010-nvmem-core-add-nvmem_dev_size-helper.patch
+++ /dev/null
@@ -1,53 +0,0 @@
-From 33cf42e68efc8ff529a7eee08a4f0ba8c8d0a207 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Thu, 21 Dec 2023 18:34:17 +0100
-Subject: [PATCH] nvmem: core: add nvmem_dev_size() helper
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-This is required by layouts that need to read whole NVMEM content. It's
-especially useful for NVMEM devices without hardcoded layout (like
-U-Boot environment data block).
-
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
-Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
-Link: https://lore.kernel.org/r/20231221173421.13737-2-zajec5@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/nvmem/core.c | 13 +++++++++++++
- include/linux/nvmem-consumer.h | 1 +
- 2 files changed, 14 insertions(+)
-
---- a/drivers/nvmem/core.c
-+++ b/drivers/nvmem/core.c
-@@ -2162,6 +2162,19 @@ const char *nvmem_dev_name(struct nvmem_
- }
- EXPORT_SYMBOL_GPL(nvmem_dev_name);
-
-+/**
-+ * nvmem_dev_size() - Get the size of a given nvmem device.
-+ *
-+ * @nvmem: nvmem device.
-+ *
-+ * Return: size of the nvmem device.
-+ */
-+size_t nvmem_dev_size(struct nvmem_device *nvmem)
-+{
-+ return nvmem->size;
-+}
-+EXPORT_SYMBOL_GPL(nvmem_dev_size);
-+
- static int __init nvmem_init(void)
- {
- int ret;
---- a/include/linux/nvmem-consumer.h
-+++ b/include/linux/nvmem-consumer.h
-@@ -81,6 +81,7 @@ int nvmem_device_cell_write(struct nvmem
- struct nvmem_cell_info *info, void *buf);
-
- const char *nvmem_dev_name(struct nvmem_device *nvmem);
-+size_t nvmem_dev_size(struct nvmem_device *nvmem);
-
- void nvmem_add_cell_lookups(struct nvmem_cell_lookup *entries,
- size_t nentries);
diff --git a/target/linux/generic/backport-6.6/819-v6.8-0011-nvmem-u-boot-env-use-nvmem_add_one_cell-nvmem-subsys.patch b/target/linux/generic/backport-6.6/819-v6.8-0011-nvmem-u-boot-env-use-nvmem_add_one_cell-nvmem-subsys.patch
deleted file mode 100644
index fc826f3f7..000000000
--- a/target/linux/generic/backport-6.6/819-v6.8-0011-nvmem-u-boot-env-use-nvmem_add_one_cell-nvmem-subsys.patch
+++ /dev/null
@@ -1,126 +0,0 @@
-From 7c8979b42b1a9c5604f431ba804928e55919263c Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Thu, 21 Dec 2023 18:34:18 +0100
-Subject: [PATCH] nvmem: u-boot-env: use nvmem_add_one_cell() nvmem subsystem
- helper
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Simplify adding NVMEM cells.
-
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
-Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
-Link: https://lore.kernel.org/r/20231221173421.13737-3-zajec5@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/nvmem/u-boot-env.c | 55 +++++++++++++++-----------------------
- 1 file changed, 21 insertions(+), 34 deletions(-)
-
---- a/drivers/nvmem/u-boot-env.c
-+++ b/drivers/nvmem/u-boot-env.c
-@@ -23,13 +23,10 @@ enum u_boot_env_format {
-
- struct u_boot_env {
- struct device *dev;
-+ struct nvmem_device *nvmem;
- enum u_boot_env_format format;
-
- struct mtd_info *mtd;
--
-- /* Cells */
-- struct nvmem_cell_info *cells;
-- int ncells;
- };
-
- struct u_boot_env_image_single {
-@@ -94,43 +91,36 @@ static int u_boot_env_read_post_process_
- static int u_boot_env_add_cells(struct u_boot_env *priv, uint8_t *buf,
- size_t data_offset, size_t data_len)
- {
-+ struct nvmem_device *nvmem = priv->nvmem;
- struct device *dev = priv->dev;
- char *data = buf + data_offset;
- char *var, *value, *eq;
-- int idx;
--
-- priv->ncells = 0;
-- for (var = data; var < data + data_len && *var; var += strlen(var) + 1)
-- priv->ncells++;
--
-- priv->cells = devm_kcalloc(dev, priv->ncells, sizeof(*priv->cells), GFP_KERNEL);
-- if (!priv->cells)
-- return -ENOMEM;
-
-- for (var = data, idx = 0;
-+ for (var = data;
- var < data + data_len && *var;
-- var = value + strlen(value) + 1, idx++) {
-+ var = value + strlen(value) + 1) {
-+ struct nvmem_cell_info info = {};
-+
- eq = strchr(var, '=');
- if (!eq)
- break;
- *eq = '\0';
- value = eq + 1;
-
-- priv->cells[idx].name = devm_kstrdup(dev, var, GFP_KERNEL);
-- if (!priv->cells[idx].name)
-+ info.name = devm_kstrdup(dev, var, GFP_KERNEL);
-+ if (!info.name)
- return -ENOMEM;
-- priv->cells[idx].offset = data_offset + value - data;
-- priv->cells[idx].bytes = strlen(value);
-- priv->cells[idx].np = of_get_child_by_name(dev->of_node, priv->cells[idx].name);
-+ info.offset = data_offset + value - data;
-+ info.bytes = strlen(value);
-+ info.np = of_get_child_by_name(dev->of_node, info.name);
- if (!strcmp(var, "ethaddr")) {
-- priv->cells[idx].raw_len = strlen(value);
-- priv->cells[idx].bytes = ETH_ALEN;
-- priv->cells[idx].read_post_process = u_boot_env_read_post_process_ethaddr;
-+ info.raw_len = strlen(value);
-+ info.bytes = ETH_ALEN;
-+ info.read_post_process = u_boot_env_read_post_process_ethaddr;
- }
-- }
-
-- if (WARN_ON(idx != priv->ncells))
-- priv->ncells = idx;
-+ nvmem_add_one_cell(nvmem, &info);
-+ }
-
- return 0;
- }
-@@ -209,7 +199,6 @@ static int u_boot_env_probe(struct platf
- struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node;
- struct u_boot_env *priv;
-- int err;
-
- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
-@@ -224,17 +213,15 @@ static int u_boot_env_probe(struct platf
- return PTR_ERR(priv->mtd);
- }
-
-- err = u_boot_env_parse(priv);
-- if (err)
-- return err;
--
- config.dev = dev;
-- config.cells = priv->cells;
-- config.ncells = priv->ncells;
- config.priv = priv;
- config.size = priv->mtd->size;
-
-- return PTR_ERR_OR_ZERO(devm_nvmem_register(dev, &config));
-+ priv->nvmem = devm_nvmem_register(dev, &config);
-+ if (IS_ERR(priv->nvmem))
-+ return PTR_ERR(priv->nvmem);
-+
-+ return u_boot_env_parse(priv);
- }
-
- static const struct of_device_id u_boot_env_of_match_table[] = {
diff --git a/target/linux/generic/backport-6.6/819-v6.8-0012-nvmem-u-boot-env-use-nvmem-device-helpers.patch b/target/linux/generic/backport-6.6/819-v6.8-0012-nvmem-u-boot-env-use-nvmem-device-helpers.patch
deleted file mode 100644
index 70abc7cf1..000000000
--- a/target/linux/generic/backport-6.6/819-v6.8-0012-nvmem-u-boot-env-use-nvmem-device-helpers.patch
+++ /dev/null
@@ -1,81 +0,0 @@
-From a832556d23c5a11115f300011a5874d6107a0d62 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Thu, 21 Dec 2023 18:34:19 +0100
-Subject: [PATCH] nvmem: u-boot-env: use nvmem device helpers
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Use nvmem_dev_size() and nvmem_device_read() to make this driver less
-mtd dependent.
-
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
-Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
-Link: https://lore.kernel.org/r/20231221173421.13737-4-zajec5@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/nvmem/u-boot-env.c | 23 +++++++++++++++--------
- 1 file changed, 15 insertions(+), 8 deletions(-)
-
---- a/drivers/nvmem/u-boot-env.c
-+++ b/drivers/nvmem/u-boot-env.c
-@@ -127,27 +127,34 @@ static int u_boot_env_add_cells(struct u
-
- static int u_boot_env_parse(struct u_boot_env *priv)
- {
-+ struct nvmem_device *nvmem = priv->nvmem;
- struct device *dev = priv->dev;
- size_t crc32_data_offset;
- size_t crc32_data_len;
- size_t crc32_offset;
- size_t data_offset;
- size_t data_len;
-+ size_t dev_size;
- uint32_t crc32;
- uint32_t calc;
-- size_t bytes;
- uint8_t *buf;
-+ int bytes;
- int err;
-
-- buf = kcalloc(1, priv->mtd->size, GFP_KERNEL);
-+ dev_size = nvmem_dev_size(nvmem);
-+
-+ buf = kcalloc(1, dev_size, GFP_KERNEL);
- if (!buf) {
- err = -ENOMEM;
- goto err_out;
- }
-
-- err = mtd_read(priv->mtd, 0, priv->mtd->size, &bytes, buf);
-- if ((err && !mtd_is_bitflip(err)) || bytes != priv->mtd->size) {
-- dev_err(dev, "Failed to read from mtd: %d\n", err);
-+ bytes = nvmem_device_read(nvmem, 0, dev_size, buf);
-+ if (bytes < 0) {
-+ err = bytes;
-+ goto err_kfree;
-+ } else if (bytes != dev_size) {
-+ err = -EIO;
- goto err_kfree;
- }
-
-@@ -169,8 +176,8 @@ static int u_boot_env_parse(struct u_boo
- break;
- }
- crc32 = le32_to_cpu(*(__le32 *)(buf + crc32_offset));
-- crc32_data_len = priv->mtd->size - crc32_data_offset;
-- data_len = priv->mtd->size - data_offset;
-+ crc32_data_len = dev_size - crc32_data_offset;
-+ data_len = dev_size - data_offset;
-
- calc = crc32(~0, buf + crc32_data_offset, crc32_data_len) ^ ~0L;
- if (calc != crc32) {
-@@ -179,7 +186,7 @@ static int u_boot_env_parse(struct u_boo
- goto err_kfree;
- }
-
-- buf[priv->mtd->size - 1] = '\0';
-+ buf[dev_size - 1] = '\0';
- err = u_boot_env_add_cells(priv, buf, data_offset, data_len);
- if (err)
- dev_err(dev, "Failed to add cells: %d\n", err);
diff --git a/target/linux/generic/backport-6.6/819-v6.8-0013-nvmem-u-boot-env-improve-coding-style.patch b/target/linux/generic/backport-6.6/819-v6.8-0013-nvmem-u-boot-env-improve-coding-style.patch
deleted file mode 100644
index 273cfed87..000000000
--- a/target/linux/generic/backport-6.6/819-v6.8-0013-nvmem-u-boot-env-improve-coding-style.patch
+++ /dev/null
@@ -1,62 +0,0 @@
-From 6bafe07c930676d6430be471310958070816a595 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Thu, 21 Dec 2023 18:34:20 +0100
-Subject: [PATCH] nvmem: u-boot-env: improve coding style
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-1. Prefer kzalloc() over kcalloc()
- See memory-allocation.rst which says: "to be on the safe side it's
- best to use routines that set memory to zero, like kzalloc()"
-2. Drop dev_err() for u_boot_env_add_cells() fail
- It can fail only on -ENOMEM. We don't want to print error then.
-3. Add extra "crc32_addr" variable
- It makes code reading header's crc32 easier to understand / review.
-
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
-Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
-Link: https://lore.kernel.org/r/20231221173421.13737-5-zajec5@gmail.com
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/nvmem/u-boot-env.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
---- a/drivers/nvmem/u-boot-env.c
-+++ b/drivers/nvmem/u-boot-env.c
-@@ -132,6 +132,7 @@ static int u_boot_env_parse(struct u_boo
- size_t crc32_data_offset;
- size_t crc32_data_len;
- size_t crc32_offset;
-+ __le32 *crc32_addr;
- size_t data_offset;
- size_t data_len;
- size_t dev_size;
-@@ -143,7 +144,7 @@ static int u_boot_env_parse(struct u_boo
-
- dev_size = nvmem_dev_size(nvmem);
-
-- buf = kcalloc(1, dev_size, GFP_KERNEL);
-+ buf = kzalloc(dev_size, GFP_KERNEL);
- if (!buf) {
- err = -ENOMEM;
- goto err_out;
-@@ -175,7 +176,8 @@ static int u_boot_env_parse(struct u_boo
- data_offset = offsetof(struct u_boot_env_image_broadcom, data);
- break;
- }
-- crc32 = le32_to_cpu(*(__le32 *)(buf + crc32_offset));
-+ crc32_addr = (__le32 *)(buf + crc32_offset);
-+ crc32 = le32_to_cpu(*crc32_addr);
- crc32_data_len = dev_size - crc32_data_offset;
- data_len = dev_size - data_offset;
-
-@@ -188,8 +190,6 @@ static int u_boot_env_parse(struct u_boo
-
- buf[dev_size - 1] = '\0';
- err = u_boot_env_add_cells(priv, buf, data_offset, data_len);
-- if (err)
-- dev_err(dev, "Failed to add cells: %d\n", err);
-
- err_kfree:
- kfree(buf);