regmap: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-ac97.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-ram.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-raw-ram.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-slimbus.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-spmi.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-w1.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-sccb.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-spi-avmm.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20240603-md-base-regmap-v1-1-ff7a2e5f990f@quicinc.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/base/regmap/regmap-ac97.c

@@ -86,4 +86,5 @@ struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97,
 }
 EXPORT_SYMBOL_GPL(__devm_regmap_init_ac97);
 
+MODULE_DESCRIPTION("Register map access API - AC'97 support");
 MODULE_LICENSE("GPL v2");

drivers/base/regmap/regmap-ram.c

@@ -83,4 +83,5 @@ struct regmap *__regmap_init_ram(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(__regmap_init_ram);
 
+MODULE_DESCRIPTION("Register map access API - Memory region");
 MODULE_LICENSE("GPL v2");

drivers/base/regmap/regmap-raw-ram.c

@@ -142,4 +142,5 @@ struct regmap *__regmap_init_raw_ram(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(__regmap_init_raw_ram);
 
+MODULE_DESCRIPTION("Register map access API - Memory region with raw access");
 MODULE_LICENSE("GPL v2");

drivers/base/regmap/regmap-sccb.c

@@ -125,4 +125,5 @@ struct regmap *__devm_regmap_init_sccb(struct i2c_client *i2c,
 }
 EXPORT_SYMBOL_GPL(__devm_regmap_init_sccb);
 
+MODULE_DESCRIPTION("Register map access API - SCCB support");
 MODULE_LICENSE("GPL v2");

drivers/base/regmap/regmap-slimbus.c

@@ -68,4 +68,5 @@ struct regmap *__devm_regmap_init_slimbus(struct slim_device *slimbus,
 }
 EXPORT_SYMBOL_GPL(__devm_regmap_init_slimbus);
 
+MODULE_DESCRIPTION("Register map access API - SLIMbus support");
 MODULE_LICENSE("GPL v2");

drivers/base/regmap/regmap-spi-avmm.c

@@ -710,4 +710,5 @@ struct regmap *__devm_regmap_init_spi_avmm(struct spi_device *spi,
 }
 EXPORT_SYMBOL_GPL(__devm_regmap_init_spi_avmm);
 
+MODULE_DESCRIPTION("Register map access API - SPI AVMM support");
 MODULE_LICENSE("GPL v2");

drivers/base/regmap/regmap-spmi.c

@@ -222,4 +222,5 @@ struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *sdev,
 }
 EXPORT_SYMBOL_GPL(__devm_regmap_init_spmi_ext);
 
+MODULE_DESCRIPTION("Register map access API - SPMI support");
 MODULE_LICENSE("GPL");

drivers/base/regmap/regmap-w1.c

@@ -234,4 +234,5 @@ struct regmap *__devm_regmap_init_w1(struct device *w1_dev,
 }
 EXPORT_SYMBOL_GPL(__devm_regmap_init_w1);
 
+MODULE_DESCRIPTION("Register map access API - W1 (1-Wire) support");
 MODULE_LICENSE("GPL");