diff options
| author | Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> | 2020-05-07 16:34:05 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-05-12 16:20:30 +0300 |
| commit | 6c47660e3c3acad9401f8fe1d288d4234f05549c (patch) | |
| tree | 53b5af03fbb9267ced61d1eaa1fb77c741e373a7 /sound | |
| parent | 6a5d6fd332624e4eee9a450bb3d18f761548822f (diff) | |
| download | linux-6c47660e3c3acad9401f8fe1d288d4234f05549c.tar.xz | |
ASoC: Intel: Use readq to read 64 bit registers
In order to fix issue described in:
"ASoC: Intel: sst: ipc command timeout"
https://patchwork.kernel.org/patch/11482829/
use readq function, which is meant to read 64 bit values from registers.
On 32 bit platforms it falls back to two readl calls.
Reported-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Tested-by: Brent Lu <brent.lu@intel.com>
Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20200507133405.32251-2-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/intel/common/sst-dsp.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/sound/soc/intel/common/sst-dsp.c b/sound/soc/intel/common/sst-dsp.c index ec66be269b69..36c077aa386e 100644 --- a/sound/soc/intel/common/sst-dsp.c +++ b/sound/soc/intel/common/sst-dsp.c @@ -10,7 +10,7 @@ #include <linux/interrupt.h> #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/io.h> +#include <linux/io-64-nonatomic-lo-hi.h> #include <linux/delay.h> #include "sst-dsp.h" @@ -34,16 +34,13 @@ EXPORT_SYMBOL_GPL(sst_shim32_read); void sst_shim32_write64(void __iomem *addr, u32 offset, u64 value) { - memcpy_toio(addr + offset, &value, sizeof(value)); + writeq(value, addr + offset); } EXPORT_SYMBOL_GPL(sst_shim32_write64); u64 sst_shim32_read64(void __iomem *addr, u32 offset) { - u64 val; - - memcpy_fromio(&val, addr + offset, sizeof(val)); - return val; + return readq(addr + offset); } EXPORT_SYMBOL_GPL(sst_shim32_read64); |