Commit c22feee7 authored by Devyn Liu's avatar Devyn Liu Committed by Slim6882
Browse files

spi: hisi-kunpeng: Delete the dump interface of data registers in debugfs 

maillist inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I9KP0Z
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git/commit/?h=for-6.9&id=7430764f5a85d30314aeef2d5438dff1fb0b1d68



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Due to the reading of FIFO during the dump of data registers in
debugfs, if SPI transmission is in progress, it will be affected
and may result in transmission failure. Therefore, the dump
interface of data registers in debugfs is removed.

Fixes: 2b2142f2 ("spi: hisi-kunpeng: Add debugfs support")
Signed-off-by: default avatarDevyn Liu <liudingyuan@huawei.com>
Reviewed-by: default avatarJay Fang <f.fangjian@huawei.com>
Signed-off-by: default avatarJunhua Lu <lujunhua7@h-partners.com>
Signed-off-by: default avatarSlim6882 <yangjunshuo@huawei.com>
parent dfea302d

drivers/spi/spi-hisi-kunpeng.c

+0 −2
Original line number Diff line number Diff line
@@ -151,8 +151,6 @@ static const struct debugfs_reg32 hisi_spi_regs[] = { 
	HISI_SPI_DBGFS_REG("ENR", HISI_SPI_ENR),

	HISI_SPI_DBGFS_REG("FIFOC", HISI_SPI_FIFOC),

	HISI_SPI_DBGFS_REG("IMR", HISI_SPI_IMR),

	HISI_SPI_DBGFS_REG("DIN", HISI_SPI_DIN),

	HISI_SPI_DBGFS_REG("DOUT", HISI_SPI_DOUT),

	HISI_SPI_DBGFS_REG("SR", HISI_SPI_SR),

	HISI_SPI_DBGFS_REG("RISR", HISI_SPI_RISR),

	HISI_SPI_DBGFS_REG("ISR", HISI_SPI_ISR),