6.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
[ Upstream commit 2e6bbfe7b0c0607001b784082c2685b134174fac ]
SPI_NFI_READ_FROM_CACHE_DONE bit must be written at the end of
dirmap_read operation even if it is already set.
In the same way, SPI_NFI_LOAD_TO_CACHE_DONE bit must be written at the
end of dirmap_write operation even if it is already set.
For this reason use regmap_write_bits() instead of regmap_set_bits().
This patch fixes mtd_pagetest kernel module test.
Fixes: a403997c1201 ("spi: airoha: add SPI-NAND Flash controller driver")
Tested-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Link: https://patch.msgid.link/20240913-airoha-spi-fixes-v1-1-de2e74ed4664@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/spi/spi-airoha-snfi.c | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/drivers/spi/spi-airoha-snfi.c b/drivers/spi/spi-airoha-snfi.c
index 9d97ec98881cc..be3e4ac42153e 100644
--- a/drivers/spi/spi-airoha-snfi.c
+++ b/drivers/spi/spi-airoha-snfi.c
@@ -739,8 +739,13 @@ static ssize_t airoha_snand_dirmap_read(struct spi_mem_dirmap_desc *desc,
if (err)
return err;
- err = regmap_set_bits(as_ctrl->regmap_nfi, REG_SPI_NFI_SNF_STA_CTL1,
- SPI_NFI_READ_FROM_CACHE_DONE);
+ /*
+ * SPI_NFI_READ_FROM_CACHE_DONE bit must be written at the end
+ * of dirmap_read operation even if it is already set.
+ */
+ err = regmap_write_bits(as_ctrl->regmap_nfi, REG_SPI_NFI_SNF_STA_CTL1,
+ SPI_NFI_READ_FROM_CACHE_DONE,
+ SPI_NFI_READ_FROM_CACHE_DONE);
if (err)
return err;
@@ -870,8 +875,13 @@ static ssize_t airoha_snand_dirmap_write(struct spi_mem_dirmap_desc *desc,
if (err)
return err;
- err = regmap_set_bits(as_ctrl->regmap_nfi, REG_SPI_NFI_SNF_STA_CTL1,
- SPI_NFI_LOAD_TO_CACHE_DONE);
+ /*
+ * SPI_NFI_LOAD_TO_CACHE_DONE bit must be written at the end
+ * of dirmap_write operation even if it is already set.
+ */
+ err = regmap_write_bits(as_ctrl->regmap_nfi, REG_SPI_NFI_SNF_STA_CTL1,
+ SPI_NFI_LOAD_TO_CACHE_DONE,
+ SPI_NFI_LOAD_TO_CACHE_DONE);
if (err)
return err;
--
2.43.0
