From 9ae369a0d696bd8d9c0cebf3b90e64b6b992b282 Mon Sep 17 00:00:00 2001
From: Benjamin Hahn <B.Hahn@phytec.de>
Date: Mon, 4 Mar 2024 12:48:54 +0100
Subject: [PATCH] drivers: imx_tmu: Select polling-rate from cpu-thermal
devicetree node
The polling rate is already specified in some devicetrees, like
imx8mp.dtsi for example, but was not selected so far. For the
trippoints, the cpu-thermal node is used. Also get the polling rate from
this node. Use the default of 5000ms if the polling rate should not be
specified in the devicetree.
NOTE: The polling rate from the devicetree will be used after this
patch. In imx8*.dtsi devicetrees the polling delay is set to 2000ms for
example.
Signed-off-by: Benjamin Hahn <B.Hahn@phytec.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
---
drivers/thermal/imx_tmu.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/thermal/imx_tmu.c b/drivers/thermal/imx_tmu.c
index 4721cfbc02..c7fe0f07a6 100644
--- a/drivers/thermal/imx_tmu.c
+++ b/drivers/thermal/imx_tmu.c
@@ -570,12 +570,14 @@ static int imx_tmu_parse_fdt(struct udevice *dev)
{
struct imx_tmu_plat *pdata = dev_get_plat(dev), *p_parent_data;
struct ofnode_phandle_args args;
- ofnode trips_np;
+ ofnode trips_np, cpu_thermal_np;
int ret;
dev_dbg(dev, "%s\n", __func__);
- pdata->polling_delay = IMX_TMU_POLLING_DELAY_MS;
+ cpu_thermal_np = ofnode_path("/thermal-zones/cpu-thermal");
+ pdata->polling_delay = ofnode_read_u32_default(cpu_thermal_np, "polling-delay",
+ IMX_TMU_POLLING_DELAY_MS);
if (pdata->zone_node) {
pdata->regs = (union tmu_regs *)dev_read_addr_ptr(dev);
--
2.39.5