diff options
| author | James Clark <james.clark@arm.com> | 2022-08-30 18:26:10 +0100 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2022-08-31 10:54:59 -0600 |
| commit | b6df1cbb415e543f2908f9c59a8fb20714b86879 (patch) | |
| tree | 636bba43bb8f9367565ecb86c3b319c90557b08a /include/linux/coresight.h | |
| parent | 3727f03e2bc63de56fd00acb8846393106318156 (diff) | |
coresight: Simplify sysfs accessors by using csdev_access abstraction
The coresight_device struct is available in the sysfs accessor, and this
contains a csdev_access struct which can be used to access registers.
Use this instead of passing in the type of each drvdata so that a common
function can be shared between all the cs drivers.
No functional changes.
Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Link: https://lore.kernel.org/r/20220830172614.340962-3-james.clark@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'include/linux/coresight.h')
| -rw-r--r-- | include/linux/coresight.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 9f445f09fcfe..a47dd1f62216 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -372,6 +372,24 @@ static inline u32 csdev_access_relaxed_read32(struct csdev_access *csa, return csa->read(offset, true, false); } +static inline u64 csdev_access_relaxed_read_pair(struct csdev_access *csa, + s32 lo_offset, s32 hi_offset) +{ + u64 val; + + if (likely(csa->io_mem)) { + val = readl_relaxed(csa->base + lo_offset); + val |= (hi_offset < 0) ? 0 : + (u64)readl_relaxed(csa->base + hi_offset) << 32; + return val; + } + + val = csa->read(lo_offset, true, false); + val |= (hi_offset < 0) ? 0 : + (u64)csa->read(hi_offset, true, false) << 32; + return val; +} + static inline u32 csdev_access_read32(struct csdev_access *csa, u32 offset) { if (likely(csa->io_mem)) |