On Thu, May 12, 2022 at 5:13 AM Andrejs Cainikovs <andrejs.cainik...@toradex.com> wrote: > > Fixup thermal trips in Linux device tree according to SoC thermal > grade. > > Signed-off-by: Andrejs Cainikovs <andrejs.cainik...@toradex.com> > --- > arch/arm/mach-imx/imx8m/soc.c | 50 +++++++++++++++++++++++++++++++++++ > 1 file changed, 50 insertions(+) > > diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c > index e93ecd2846..b451ece91f 100644 > --- a/arch/arm/mach-imx/imx8m/soc.c > +++ b/arch/arm/mach-imx/imx8m/soc.c > @@ -1001,6 +1001,49 @@ static int disable_cpu_nodes(void *blob, u32 > disabled_cores) > return 0; > } > > +int fixup_thermal_trips(void *blob, const char *name)
Is there any reason this function cannot be static? > +{ > + int minc, maxc; > + int node, trip; > + > + node = fdt_path_offset(blob, "/thermal-zones"); > + if (node < 0) > + return node; > + > + node = fdt_subnode_offset(blob, node, name); > + if (node < 0) > + return node; > + > + node = fdt_subnode_offset(blob, node, "trips"); > + if (node < 0) > + return node; > + > + get_cpu_temp_grade(&minc, &maxc); > + > + fdt_for_each_subnode(trip, blob, node) { > + const char *type; > + int temp, ret; > + > + type = fdt_getprop(blob, trip, "type", NULL); > + if (!type) > + continue; > + > + temp = 0; > + if (!strcmp(type, "critical")) { > + temp = 1000 * maxc; > + } else if (!strcmp(type, "passive")) { > + temp = 1000 * (maxc - 10); > + } > + if (temp) { > + ret = fdt_setprop_u32(blob, trip, "temperature", > temp); > + if (ret) > + return ret; > + } > + } > + > + return 0; > +} > + > int ft_system_setup(void *blob, bd_t *bd) > { > #ifdef CONFIG_IMX8MQ > @@ -1128,6 +1171,13 @@ usb_modify_speed: > disable_cpu_nodes(blob, 2); > #endif > > + if (fixup_thermal_trips(blob, "cpu-thermal")) > + printf("Failed to update cpu-thermal trip(s)"); > +#ifdef CONFIG_IMX8MP > + if (fixup_thermal_trips(blob, "soc-thermal")) > + printf("Failed to update soc-thermal trip(s)"); > +#endif > + > return ft_add_optee_node(blob, bd); > } > #endif > -- > 2.34.1 >