static int
tegra124_coretemp_ofw_parse(struct tegra124_coretemp_softc *sc)
{
int rv, ncells;
phandle_t node, xnode;
pcell_t *cells;
node = OF_peer(0);
node = ofw_bus_find_child(node, "thermal-zones");
if (node <= 0) {
device_printf(sc->dev, "Cannot find 'thermal-zones'.\n");
return (ENXIO);
}
node = ofw_bus_find_child(node, "cpu");
if (node <= 0) {
device_printf(sc->dev, "Cannot find 'cpu'\n");
return (ENXIO);
}
rv = ofw_bus_parse_xref_list_alloc(node, "thermal-sensors",
"#thermal-sensor-cells", 0, &xnode, &ncells, &cells);
if (rv != 0) {
device_printf(sc->dev,
"Cannot parse 'thermal-sensors' property.\n");
return (ENXIO);
}
if (ncells != 1) {
device_printf(sc->dev,
"Invalid format of 'thermal-sensors' property(%d).\n",
ncells);
return (ENXIO);
}
sc->tsens_id = 0x100 + sc->cpu_id; //cells[0];
OF_prop_free(cells);
sc->tsens_dev = OF_device_from_xref(xnode);
if (sc->tsens_dev == NULL) {
device_printf(sc->dev,
"Cannot find thermal sensors device.");
return (ENXIO);
}
return (0);
}
static int
am335x_read_panel_info(device_t dev, phandle_t node, struct panel_info *panel)
{
int error;
phandle_t panel_info_node;
panel_info_node = ofw_bus_find_child(node, "panel-info");
if (panel_info_node == 0)
return (-1);
error = 0;
if ((error = am335x_read_property(dev, panel_info_node,
"ac-bias", &panel->ac_bias)))
goto out;
if ((error = am335x_read_property(dev, panel_info_node,
"ac-bias-intrpt", &panel->ac_bias_intrpt)))
goto out;
if ((error = am335x_read_property(dev, panel_info_node,
"dma-burst-sz", &panel->dma_burst_sz)))
goto out;
if ((error = am335x_read_property(dev, panel_info_node,
"bpp", &panel->bpp)))
goto out;
if ((error = am335x_read_property(dev, panel_info_node,
"fdd", &panel->fdd)))
goto out;
if ((error = am335x_read_property(dev, panel_info_node,
"sync-edge", &panel->sync_edge)))
goto out;
error = am335x_read_property(dev, panel_info_node,
"sync-ctrl", &panel->sync_ctrl);
out:
return (error);
}
static int
am335x_read_timing(device_t dev, phandle_t node, struct panel_info *panel)
{
int error;
phandle_t timings_node, timing_node, native;
timings_node = ofw_bus_find_child(node, "display-timings");
if (timings_node == 0) {
device_printf(dev, "no \"display-timings\" node\n");
return (-1);
}
if (OF_searchencprop(timings_node, "native-mode", &native,
sizeof(native)) == -1) {
device_printf(dev, "no \"native-mode\" reference in \"timings\" node\n");
return (-1);
}
timing_node = OF_node_from_xref(native);
error = 0;
if ((error = am335x_read_property(dev, timing_node,
"hactive", &panel->panel_width)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"vactive", &panel->panel_height)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"hfront-porch", &panel->panel_hfp)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"hback-porch", &panel->panel_hbp)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"hsync-len", &panel->panel_hsw)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"vfront-porch", &panel->panel_vfp)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"vback-porch", &panel->panel_vbp)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"vsync-len", &panel->panel_vsw)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"clock-frequency", &panel->panel_pxl_clk)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"pixelclk-active", &panel->pixelclk_active)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"hsync-active", &panel->hsync_active)))
goto out;
if ((error = am335x_read_property(dev, timing_node,
"vsync-active", &panel->vsync_active)))
goto out;
out:
return (error);
}
