Author: wulf
Date: Sun Nov 3 20:50:06 2019
New Revision: 354300
URL: https://svnweb.freebsd.org/changeset/base/354300
Log:
[ig4] disable controller before initialization of clock counters
It is required by controller specifications.
Modified:
head/sys/dev/ichiic/ig4_iic.c
Modified: head/sys/dev/ichiic/ig4_iic.c
==============================================================================
--- head/sys/dev/ichiic/ig4_iic.c Sun Nov 3 20:49:04 2019
(r354299)
+++ head/sys/dev/ichiic/ig4_iic.c Sun Nov 3 20:50:06 2019
(r354300)
@@ -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;
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