iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
1,153,442 Commits 104 Branches 1,843 Tags 5.7 GiB
16b0c7cad9
Commit Graph

4 Commits

Author SHA1 Message Date
oujiefeng
40fafc8eca
spi: hisi-kunpeng: Fix the debugfs directory name incorrect 
Change the debugfs directory name from hisi_spi65535 to hisi_spi0.

Fixes: 2b2142f247 ("spi: hisi-kunpeng: Add debugfs support")
Signed-off-by: oujiefeng <oujiefeng@huawei.com>
Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/20211117012119.55558-1-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-11-17 13:04:54 +00:00
Jay Fang
2b2142f247
spi: hisi-kunpeng: Add debugfs support 
This patch uses debugfs_regset32 interface to create the registers dump
file. Use it instead of creating a generic debugfs file with manually
written read callback function.

With these entries, users can check all the SPI controller registers
during run time.

Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/1622789718-13977-1-git-send-email-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-07 16:24:12 +01:00
Jay Fang
9a446cf97a
spi: hisi-kunpeng: Fix Woverflow warning on conversion 
Fix warning Woverflow on type conversion reported on x86_64:

  drivers/spi/spi-hisi-kunpeng.c:361:9: warning: conversion from 'long unsigned int' to 'u32'
  {aka 'unsigned int'} changes value from '18446744073709551600' to '4294967280' [-Woverflow]

The registers are 32 bit, so fix by casting to u32.

Fixes: c770d8631e ("spi: Add HiSilicon SPI Controller Driver for Kunpeng SoCs")
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/1617762660-54681-1-git-send-email-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-04-07 16:58:34 +01:00
Jay Fang
c770d8631e
spi: Add HiSilicon SPI Controller Driver for Kunpeng SoCs 
This driver supports SPI Controller for HiSilicon Kunpeng SoCs. This
driver supports SPI operations using FIFO mode of transfer.

DMA is not supported, and we just use IRQ mode for operation completion
notification.

Only ACPI firmware is supported.

Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/1616836200-45827-1-git-send-email-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-03-31 18:04:19 +01:00