On Thu, May 5, 2022 at 2:42 PM Francesco Dolcini francesco.dolcini@toradex.com wrote:
On Thu, May 05, 2022 at 01:10:27PM -0500, Adam Ford wrote:
If the thermal sensor is enabled in U-Boot, adjust the cpu-thermal trip points for industrial rated parts.
Is this supposed to work fine with any i.MX8M? Mini/Plus/... ?
Yes. They (8MQ, 8MM, 8MN, and 8MP) all appear to have the same structure for /thermal-zones/cpu-thermal/trips
Signed-off-by: Adam Ford aford173@gmail.com
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c index 8e23e6da32..619e04a602 100644 --- a/arch/arm/mach-imx/imx8m/soc.c +++ b/arch/arm/mach-imx/imx8m/soc.c @@ -30,6 +30,7 @@ #include <fsl_wdog.h> #include <imx_sip.h> #include <linux/bitops.h> +#include <imx_thermal.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -1207,10 +1208,10 @@ static int cleanup_nodes_for_efi(void *blob)
int ft_system_setup(void *blob, struct bd_info *bd) {
__maybe_unused int nodeoff;#ifdef CONFIG_IMX8MQ int i = 0; int rc;
int nodeoff; if (get_boot_device() == USB_BOOT) { disable_dcss_nodes(blob);@@ -1346,6 +1347,24 @@ usb_modify_speed: disable_cpu_nodes(blob, 2); #endif
+#if defined(CONFIG_IMX_TMU)
int minc, maxc, prop;nodeoff = fdt_path_offset(blob, "/thermal-zones/cpu-thermal/trips");/* Only update Industrial grade parts */if (get_cpu_temp_grade(&minc, &maxc) == TEMP_INDUSTRIAL) {I would check for != TEMP_COMMERCIAL.
That makes sense. I had thought about doing that, but I only have commercial and industrial parts, so I couldn't test anything else. I'll push a V2.
fdt_for_each_subnode(prop, blob, nodeoff) {const char *type = fdt_getprop(blob, prop, "type", NULL);if (type && (!strcmp("critical", type)))fdt_setprop_u32(blob, prop, "temperature", maxc * 1000);else if (type && (!strcmp("passive", type)))fdt_setprop_u32(blob, prop, "temperature", (maxc - 10) * 1000);}}+#endif
cleanup_nodes_for_efi(blob); return 0;}
Francesco