Unverified Commit 230dae78 authored by Alexander Stein's avatar Alexander Stein Committed by Robert Foss
Browse files

drm/bridge: tc358767: Add precious register SYSSTAT 



This is the single register which clears its value upon read operation.

Signed-off-by: default avatarAlexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: default avatarRobert Foss <rfoss@kernel.org>
Signed-off-by: default avatarRobert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231212075257.75084-7-alexander.stein@ew.tq-group.com
parent ef34c0eb

drivers/gpu/drm/bridge/tc358767.c

+10 −0
Original line number Diff line number Diff line
@@ -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,