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[ig4] disable controller before initialization of clock counters

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It is required by controller specifications.
This commit is contained in:
wulf 2019-11-03 20:50:06 +00:00
parent 0aa789e4c9
commit f03318a994
1 changed files with 7 additions and 5 deletions
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12
sys/dev/ichiic/ig4_iic.c
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@ -531,6 +531,13 @@ ig4iic_attach(ig4iic_softc_t *sc)
goto done;
}
}
if (set_controller(sc, 0)) {
device_printf(sc->dev, "controller error during attach-1\n");
error = ENXIO;
goto done;
}
v = reg_read(sc, IG4_REG_SS_SCL_HCNT);
v = reg_read(sc, IG4_REG_SS_SCL_LCNT);
v = reg_read(sc, IG4_REG_FS_SCL_HCNT);
@ -595,11 +602,6 @@ ig4iic_attach(ig4iic_softc_t *sc)
}
#endif
if (set_controller(sc, 0)) {
device_printf(sc->dev, "controller error during attach-1\n");
error = ENXIO;
goto done;
}
if (set_controller(sc, IG4_I2C_ENABLE)) {
device_printf(sc->dev, "controller error during attach-2\n");
error = ENXIO;