diff options
| author | Alexander Stein <alexander.stein@ew.tq-group.com> | 2023-12-12 08:52:56 +0100 |
|---|---|---|
| committer | Robert Foss <rfoss@kernel.org> | 2023-12-15 14:58:56 +0100 |
| commit | 230dae78d6d4531cd440daa782533d16ea3cfc33 (patch) | |
| tree | cbd3c295d3711898a3119ec0b6e012d60a9fa2de | |
| parent | ef34c0eb0b58dfdd846093b1a26e63a08acaaf22 (diff) | |
drm/bridge: tc358767: Add precious register SYSSTAT
This is the single register which clears its value upon read operation.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231212075257.75084-7-alexander.stein@ew.tq-group.com
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358767.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index d1cde022cb5e..10465398d4e6 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -2070,6 +2070,15 @@ static const struct regmap_access_table tc_volatile_table = { .n_yes_ranges = ARRAY_SIZE(tc_volatile_ranges), }; +static const struct regmap_range tc_precious_ranges[] = { + regmap_reg_range(SYSSTAT, SYSSTAT), +}; + +static const struct regmap_access_table tc_precious_table = { + .yes_ranges = tc_precious_ranges, + .n_yes_ranges = ARRAY_SIZE(tc_precious_ranges), +}; + static const struct regmap_range tc_non_writeable_ranges[] = { regmap_reg_range(PPI_BUSYPPI, PPI_BUSYPPI), regmap_reg_range(DSI_BUSYDSI, DSI_BUSYDSI), @@ -2093,6 +2102,7 @@ static const struct regmap_config tc_regmap_config = { .cache_type = REGCACHE_MAPLE, .readable_reg = tc_readable_reg, .volatile_table = &tc_volatile_table, + .precious_table = &tc_precious_table, .wr_table = &tc_writeable_table, .reg_format_endian = REGMAP_ENDIAN_BIG, .val_format_endian = REGMAP_ENDIAN_LITTLE, |