/**
* ti_scm_padconf_init_from_hints - processes the hints for padconf
* @sc: the driver soft context
*
*
*
* LOCKING:
* Internally locks it's own context.
*
* RETURNS:
* 0 on success.
* EINVAL if pin requested is outside valid range or already in use.
*/
static int
ti_scm_padconf_init_from_fdt(struct ti_scm_softc *sc)
{
const struct ti_scm_padconf *padconf;
const struct ti_scm_padstate *padstates;
int err;
phandle_t node;
int len;
char *fdt_pad_config;
int i;
char *padname, *muxname, *padstate;
node = ofw_bus_get_node(sc->sc_dev);
len = OF_getproplen(node, "scm-pad-config");
OF_getprop_alloc(node, "scm-pad-config", 1, (void **)&fdt_pad_config);
i = len;
while (i > 0) {
padname = fdt_pad_config;
fdt_pad_config += strlen(padname) + 1;
i -= strlen(padname) + 1;
if (i <= 0)
break;
muxname = fdt_pad_config;
fdt_pad_config += strlen(muxname) + 1;
i -= strlen(muxname) + 1;
if (i <= 0)
break;
padstate = fdt_pad_config;
fdt_pad_config += strlen(padstate) + 1;
i -= strlen(padstate) + 1;
if (i < 0)
break;
padconf = ti_scm_dev.padconf;
while (padconf->ballname != NULL) {
if (strcmp(padconf->ballname, padname) == 0) {
padstates = ti_scm_dev.padstate;
err = 1;
while (padstates->state != NULL) {
if (strcmp(padstates->state, padstate) == 0) {
err = ti_scm_padconf_set_internal(sc,
padconf, muxname, padstates->reg);
}
padstates++;
}
if (err)
device_printf(sc->sc_dev, "err: failed to configure"
"pin \"%s\"\n", padconf->ballname);
}
padconf++;
}
}
return (0);
}
/**
* ti_scm_padconf_set - sets the muxmode and state for a pad/pin
* @padname: the name of the pad, i.e. "c12"
* @muxmode: the name of the mode to use for the pin, i.e. "uart1_rx"
* @state: the state to put the pad/pin in, i.e. PADCONF_PIN_???
*
*
* LOCKING:
* Internally locks it's own context.
*
* RETURNS:
* 0 on success.
* EINVAL if pin requested is outside valid range or already in use.
*/
int
ti_scm_padconf_set(const char *padname, const char *muxmode, unsigned int state)
{
const struct ti_scm_padconf *padconf;
if (!ti_scm_sc)
return (ENXIO);
/* find the pin in the devmap */
padconf = ti_scm_padconf_from_name(padname);
if (padconf == NULL)
return (EINVAL);
return (ti_scm_padconf_set_internal(ti_scm_sc, padconf, muxmode, state));
}
