kernel: 5.10: update nvmem subsystem to the 5.15 state

This allows cleanly backporting more recent stuff that's important for
OpenWrt.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

1 files changed, 0 insertions, 124 deletions

diff --git a/target/linux/bcm53xx/patches-5.10/080-v5.13-0002-nvmem-brcm_nvram-new-driver-exposing-Broadcom-s-NVRA.patch b/target/linux/bcm53xx/patches-5.10/080-v5.13-0002-nvmem-brcm_nvram-new-driver-exposing-Broadcom-s-NVRA.patch
deleted file mode 100644
index 3a8940b36a..0000000000
--- a/target/linux/bcm53xx/patches-5.10/080-v5.13-0002-nvmem-brcm_nvram-new-driver-exposing-Broadcom-s-NVRA.patch
+++ /dev/null
@@ -1,124 +0,0 @@
-From b152bbeb0282bfcf6f91d0d5befd7582c1c3fc23 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Fri, 5 Mar 2021 19:32:36 +0100
-Subject: [PATCH] nvmem: brcm_nvram: new driver exposing Broadcom's NVRAM
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-This driver provides access to Broadcom's NVRAM.
-
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
-Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
----
- drivers/nvmem/Kconfig      |  9 +++++
- drivers/nvmem/Makefile     |  2 +
- drivers/nvmem/brcm_nvram.c | 78 ++++++++++++++++++++++++++++++++++++++
- 3 files changed, 89 insertions(+)
- create mode 100644 drivers/nvmem/brcm_nvram.c
-
---- a/drivers/nvmem/Kconfig
-+++ b/drivers/nvmem/Kconfig
-@@ -283,4 +283,13 @@ config NVMEM_U_BOOT_ENV
- 
- 	  If compiled as module it will be called nvmem_u-boot-env.
- 
-+
-+config NVMEM_BRCM_NVRAM
-+	tristate "Broadcom's NVRAM support"
-+	depends on ARCH_BCM_5301X || COMPILE_TEST
-+	depends on HAS_IOMEM
-+	help
-+	  This driver provides support for Broadcom's NVRAM that can be accessed
-+	  using I/O mapping.
-+
- endif
---- a/drivers/nvmem/Makefile
-+++ b/drivers/nvmem/Makefile
-@@ -57,3 +57,5 @@ obj-$(CONFIG_SPRD_EFUSE)	+= nvmem_sprd_e
- nvmem_sprd_efuse-y		:= sprd-efuse.o
- obj-$(CONFIG_NVMEM_U_BOOT_ENV)	+= nvmem_u-boot-env.o
- nvmem_u-boot-env-y		:= u-boot-env.o
-+obj-$(CONFIG_NVMEM_BRCM_NVRAM)	+= nvmem_brcm_nvram.o
-+nvmem_brcm_nvram-y		:= brcm_nvram.o
---- /dev/null
-+++ b/drivers/nvmem/brcm_nvram.c
-@@ -0,0 +1,78 @@
-+// SPDX-License-Identifier: GPL-2.0-only
-+/*
-+ * Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl>
-+ */
-+
-+#include <linux/io.h>
-+#include <linux/mod_devicetable.h>
-+#include <linux/module.h>
-+#include <linux/nvmem-provider.h>
-+#include <linux/platform_device.h>
-+
-+struct brcm_nvram {
-+	struct device *dev;
-+	void __iomem *base;
-+};
-+
-+static int brcm_nvram_read(void *context, unsigned int offset, void *val,
-+			   size_t bytes)
-+{
-+	struct brcm_nvram *priv = context;
-+	u8 *dst = val;
-+
-+	while (bytes--)
-+		*dst++ = readb(priv->base + offset++);
-+
-+	return 0;
-+}
-+
-+static int brcm_nvram_probe(struct platform_device *pdev)
-+{
-+	struct nvmem_config config = {
-+		.name = "brcm-nvram",
-+		.reg_read = brcm_nvram_read,
-+	};
-+	struct device *dev = &pdev->dev;
-+	struct resource *res;
-+	struct brcm_nvram *priv;
-+
-+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
-+	if (!priv)
-+		return -ENOMEM;
-+	priv->dev = dev;
-+
-+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+	priv->base = devm_ioremap_resource(dev, res);
-+	if (IS_ERR(priv->base))
-+		return PTR_ERR(priv->base);
-+
-+	config.dev = dev;
-+	config.priv = priv;
-+	config.size = resource_size(res);
-+
-+	return PTR_ERR_OR_ZERO(devm_nvmem_register(dev, &config));
-+}
-+
-+static const struct of_device_id brcm_nvram_of_match_table[] = {
-+	{ .compatible = "brcm,nvram", },
-+	{},
-+};
-+
-+static struct platform_driver brcm_nvram_driver = {
-+	.probe = brcm_nvram_probe,
-+	.driver = {
-+		.name = "brcm_nvram",
-+		.of_match_table = brcm_nvram_of_match_table,
-+	},
-+};
-+
-+static int __init brcm_nvram_init(void)
-+{
-+	return platform_driver_register(&brcm_nvram_driver);
-+}
-+
-+subsys_initcall_sync(brcm_nvram_init);
-+
-+MODULE_AUTHOR("Rafał Miłecki");
-+MODULE_LICENSE("GPL");
-+MODULE_DEVICE_TABLE(of, brcm_nvram_of_match_table);