openwrt/target/linux/mediatek/patches-5.15/330-snand-mtk-bmt-support.patch
Michał Kępień fa4dc86e98
kernel: backport MEMREAD ioctl
MEMREAD is a new ioctl for MTD character devices that was first included
in Linux 6.1.  It allows userspace applications to use the Linux
kernel's OOB autoplacement mechanism while reading data from NAND
devices.  The Yafut tool needs this ioctl to do its job.

Signed-off-by: Michał Kępień <openwrt@kempniu.pl>
2023-04-18 13:53:03 +02:00

35 lines
808 B
Diff

--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -19,6 +19,7 @@
#include <linux/string.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi-mem.h>
+#include <linux/mtd/mtk_bmt.h>
static int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val)
{
@@ -1343,6 +1344,7 @@ static int spinand_probe(struct spi_mem
if (ret)
return ret;
+ mtk_bmt_attach(mtd);
ret = mtd_device_register(mtd, NULL, 0);
if (ret)
goto err_spinand_cleanup;
@@ -1350,6 +1352,7 @@ static int spinand_probe(struct spi_mem
return 0;
err_spinand_cleanup:
+ mtk_bmt_detach(mtd);
spinand_cleanup(spinand);
return ret;
@@ -1368,6 +1371,7 @@ static int spinand_remove(struct spi_mem
if (ret)
return ret;
+ mtk_bmt_detach(mtd);
spinand_cleanup(spinand);
return 0;