mediatek: update mtd parser patches

This updates the patches to match the versions included in the mtd
subsystem for the next Linux kernel version.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 50 insertions, 0 deletions

diff --git a/target/linux/mediatek/patches-5.10/351-mtd-parsers-trx-Allow-to-specify-brcm-trx-magic-in-D.patch b/target/linux/mediatek/patches-5.10/351-mtd-parsers-trx-Allow-to-specify-brcm-trx-magic-in-D.patch
new file mode 100644
index 0000000000..ac98556101
--- /dev/null
+++ b/target/linux/mediatek/patches-5.10/351-mtd-parsers-trx-Allow-to-specify-brcm-trx-magic-in-D.patch
@@ -0,0 +1,50 @@
+From d7f7e04f8b67571a4bf5a0dcd4f9da4214f5262c Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sun, 18 Apr 2021 23:46:15 +0200
+Subject: mtd: parsers: trx: Allow to specify brcm, trx-magic in DT
+
+Buffalo uses a different TRX magic for every device, to be able to use
+this trx parser, make it possible to specify the TRX magic in device
+tree. If no TRX magic is specified in device tree, the standard value
+will be used. This value should only be specified if a vendor chooses to
+use a non standard TRX magic.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20210418214616.239574-3-hauke@hauke-m.de
+---
+ drivers/mtd/parsers/parser_trx.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+--- a/drivers/mtd/parsers/parser_trx.c
++++ b/drivers/mtd/parsers/parser_trx.c
+@@ -78,13 +78,20 @@ static int parser_trx_parse(struct mtd_i
+ 			    const struct mtd_partition **pparts,
+ 			    struct mtd_part_parser_data *data)
+ {
++	struct device_node *np = mtd_get_of_node(mtd);
+ 	struct mtd_partition *parts;
+ 	struct mtd_partition *part;
+ 	struct trx_header trx;
+ 	size_t bytes_read;
+ 	uint8_t curr_part = 0, i = 0;
++	uint32_t trx_magic = TRX_MAGIC;
+ 	int err;
+ 
++	/* Get different magic from device tree if specified */
++	err = of_property_read_u32(np, "brcm,trx-magic", &trx_magic);
++	if (err != 0 && err != -EINVAL)
++		pr_err("failed to parse \"brcm,trx-magic\" DT attribute, using default: %d\n", err);
++
+ 	parts = kcalloc(TRX_PARSER_MAX_PARTS, sizeof(struct mtd_partition),
+ 			GFP_KERNEL);
+ 	if (!parts)
+@@ -97,7 +104,7 @@ static int parser_trx_parse(struct mtd_i
+ 		return err;
+ 	}
+ 
+-	if (trx.magic != TRX_MAGIC) {
++	if (trx.magic != trx_magic) {
+ 		kfree(parts);
+ 		return -ENOENT;
+ 	}