From 013a3a66f25af3fb614f45df43983657514944c4 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Mon, 20 Oct 2025 16:54:55 +0100 Subject: regmap: sdw-mbq: Don't assume the regmap device is the SoundWire slave Currently, the code assumes that the device that registered the MBQ register map is the actual SoundWire slave device. This works fine for all current users, however future SDCA devices will likely be implemented with the SoundWire slave as a parent device and separate child drivers with regmaps for each audio Function. Update the regmap_init_sdw_mbq_cfg macro to allow these two to be specified separately. Reviewed-by: Bard Liao Signed-off-by: Charles Keepax Reviewed-by: Pierre-Louis Bossart Link: https://patch.msgid.link/20251020155512.353774-3-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown --- drivers/base/regmap/regmap-sdw-mbq.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) (limited to 'drivers/base') diff --git a/drivers/base/regmap/regmap-sdw-mbq.c b/drivers/base/regmap/regmap-sdw-mbq.c index 86644bbd0710..8b7d34a6080d 100644 --- a/drivers/base/regmap/regmap-sdw-mbq.c +++ b/drivers/base/regmap/regmap-sdw-mbq.c @@ -15,6 +15,7 @@ struct regmap_mbq_context { struct device *dev; + struct sdw_slave *sdw; struct regmap_sdw_mbq_cfg cfg; @@ -46,7 +47,7 @@ static bool regmap_sdw_mbq_deferrable(struct regmap_mbq_context *ctx, unsigned i static int regmap_sdw_mbq_poll_busy(struct sdw_slave *slave, unsigned int reg, struct regmap_mbq_context *ctx) { - struct device *dev = &slave->dev; + struct device *dev = ctx->dev; int val, ret = 0; dev_dbg(dev, "Deferring transaction for 0x%x\n", reg); @@ -96,8 +97,7 @@ static int regmap_sdw_mbq_write_impl(struct sdw_slave *slave, static int regmap_sdw_mbq_write(void *context, unsigned int reg, unsigned int val) { struct regmap_mbq_context *ctx = context; - struct device *dev = ctx->dev; - struct sdw_slave *slave = dev_to_sdw_dev(dev); + struct sdw_slave *slave = ctx->sdw; bool deferrable = regmap_sdw_mbq_deferrable(ctx, reg); int mbq_size = regmap_sdw_mbq_size(ctx, reg); int ret; @@ -156,8 +156,7 @@ static int regmap_sdw_mbq_read_impl(struct sdw_slave *slave, static int regmap_sdw_mbq_read(void *context, unsigned int reg, unsigned int *val) { struct regmap_mbq_context *ctx = context; - struct device *dev = ctx->dev; - struct sdw_slave *slave = dev_to_sdw_dev(dev); + struct sdw_slave *slave = ctx->sdw; bool deferrable = regmap_sdw_mbq_deferrable(ctx, reg); int mbq_size = regmap_sdw_mbq_size(ctx, reg); int ret; @@ -208,6 +207,7 @@ static int regmap_sdw_mbq_config_check(const struct regmap_config *config) static struct regmap_mbq_context * regmap_sdw_mbq_gen_context(struct device *dev, + struct sdw_slave *sdw, const struct regmap_config *config, const struct regmap_sdw_mbq_cfg *mbq_config) { @@ -218,6 +218,7 @@ regmap_sdw_mbq_gen_context(struct device *dev, return ERR_PTR(-ENOMEM); ctx->dev = dev; + ctx->sdw = sdw; if (mbq_config) ctx->cfg = *mbq_config; @@ -228,7 +229,7 @@ regmap_sdw_mbq_gen_context(struct device *dev, return ctx; } -struct regmap *__regmap_init_sdw_mbq(struct sdw_slave *sdw, +struct regmap *__regmap_init_sdw_mbq(struct device *dev, struct sdw_slave *sdw, const struct regmap_config *config, const struct regmap_sdw_mbq_cfg *mbq_config, struct lock_class_key *lock_key, @@ -241,16 +242,16 @@ struct regmap *__regmap_init_sdw_mbq(struct sdw_slave *sdw, if (ret) return ERR_PTR(ret); - ctx = regmap_sdw_mbq_gen_context(&sdw->dev, config, mbq_config); + ctx = regmap_sdw_mbq_gen_context(dev, sdw, config, mbq_config); if (IS_ERR(ctx)) return ERR_CAST(ctx); - return __regmap_init(&sdw->dev, ®map_sdw_mbq, ctx, + return __regmap_init(dev, ®map_sdw_mbq, ctx, config, lock_key, lock_name); } EXPORT_SYMBOL_GPL(__regmap_init_sdw_mbq); -struct regmap *__devm_regmap_init_sdw_mbq(struct sdw_slave *sdw, +struct regmap *__devm_regmap_init_sdw_mbq(struct device *dev, struct sdw_slave *sdw, const struct regmap_config *config, const struct regmap_sdw_mbq_cfg *mbq_config, struct lock_class_key *lock_key, @@ -263,11 +264,11 @@ struct regmap *__devm_regmap_init_sdw_mbq(struct sdw_slave *sdw, if (ret) return ERR_PTR(ret); - ctx = regmap_sdw_mbq_gen_context(&sdw->dev, config, mbq_config); + ctx = regmap_sdw_mbq_gen_context(dev, sdw, config, mbq_config); if (IS_ERR(ctx)) return ERR_CAST(ctx); - return __devm_regmap_init(&sdw->dev, ®map_sdw_mbq, ctx, + return __devm_regmap_init(dev, ®map_sdw_mbq, ctx, config, lock_key, lock_name); } EXPORT_SYMBOL_GPL(__devm_regmap_init_sdw_mbq); -- cgit v1.2.3