Extern or forward variable declaration at include/linux/regmap.h, line 31 References: drivers/base/regmap/regmap.c, line 1054 drivers/clk/clk-si5341.c, line 1002 drivers/media/dvb-frontends/cxd2820r_core.c, line 557 drivers/media/dvb-frontends/cxd2820r_core.c, line 568 drivers/mfd/da9062-core.c, line 439 drivers/mfd/da9062-core.c, line 544 drivers/mfd/da9063-i2c.c, line 159 drivers/mfd/da9150-core.c, line 153 drivers/regulator/da9211-regulator.c, line 45 include/linux/regmap.h, line 31 include/linux/regmap.h, line 401 include/linux/regmap.h, line 429 sound/soc/codecs/cs42l42.c, line 376 sound/soc/codecs/pcm186x.c, line 622 sound/soc/codecs/pcm512x.c, line 1481 sound/soc/codecs/rt1305.c, line 39 sound/soc/codecs/rt5616.c, line 34 sound/soc/codecs/rt5640.c, line 42 sound/soc/codecs/rt5645.c, line 57 sound/soc/codecs/rt5651.c, line 38 sound/soc/codecs/rt5660.c, line 40 sound/soc/codecs/rt5670.c, line 59 sound/soc/codecs/rt5677.c, line 46 sound/soc/codecs/tlv320aic31xx.c, line 116 sound/soc/codecs/tlv320aic32x4.c, line 550 sound/soc/codecs/tscs454.c, line 252 sound/soc/codecs/wcd9335.c, line 4924 sound/soc/codecs/wcd9335.c, line 4967 sound/soc/codecs/wm2200.c, line 112