p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

spi: sprd: Fix the incorrect SPI register 

The original code used an incorrect SPI register to initialize the SPI
controller in sprd_spi_init_hw(), thus fix it.

Fixes: e7d973a31c ("spi: sprd: Add SPI driver for Spreadtrum SC9860")
Signed-off-by: Huanpeng Xin <huanpeng.xin@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Link: https://lore.kernel.org/r/b4f7f89ec0fdc595335687bfbd9f962213bc4a1d.1575443510.git.baolin.wang7@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Huanpeng Xin 2019-12-04 15:13:59 +08:00 committed by Mark Brown
parent a1f4c96b79
commit 5e9c5236b7
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/spi/spi-sprd.c
View File

@ -678,7 +678,7 @@ static int sprd_spi_init_hw(struct sprd_spi *ss, struct spi_transfer *t)
if (d->unit != SPI_DELAY_UNIT_SCK)
return -EINVAL;
val = readl_relaxed(ss->base + SPRD_SPI_CTL7);
val = readl_relaxed(ss->base + SPRD_SPI_CTL0);
val &= ~(SPRD_SPI_SCK_REV | SPRD_SPI_NG_TX | SPRD_SPI_NG_RX);
/* Set default chip selection, clock phase and clock polarity */
val |= ss->hw_mode & SPI_CPHA ? SPRD_SPI_NG_RX : SPRD_SPI_NG_TX;