diff options
| author | Fabio Estevam <festevam@denx.de> | 2023-08-23 20:59:08 +0300 |
|---|---|---|
| committer | Stefano Babic <stefano.babic@swupdate.org> | 2023-09-04 18:26:44 +0300 |
| commit | 402b8106eca604d3e1c150fbde88064d5044cb7c (patch) | |
| tree | d9e6738dfd2e3bf13b92c6b7b8547d232c0a2008 /drivers/thermal | |
| parent | 282ff895c89c4c403be8a2331bcc265ff5224a83 (diff) | |
| download | u-boot-402b8106eca604d3e1c150fbde88064d5044cb7c.tar.xz | |
thermal: imx_tmu: Fix the polling default
When the 'polling-delay' property is not passed via devicetree,
pdata->polling_delay keeps at 0. This causes the imx_tmu driver to get
stuck inside the busy while() loop when the CPU temperature is above
the alert point.
Fix this problem by passing a one second polling interval, which provides
a proper delay to let the system to cool down and exit the while() loop
when the temperature is below the alert point.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/imx_tmu.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/thermal/imx_tmu.c b/drivers/thermal/imx_tmu.c index 97efc55044..d9a04eaf79 100644 --- a/drivers/thermal/imx_tmu.c +++ b/drivers/thermal/imx_tmu.c @@ -37,6 +37,7 @@ DECLARE_GLOBAL_DATA_PTR; #define TER_ADC_PD 0x40000000 #define TER_ALPF 0x3 +#define IMX_TMU_POLLING_DELAY_MS 1000 /* * i.MX TMU Registers */ @@ -574,6 +575,8 @@ static int imx_tmu_parse_fdt(struct udevice *dev) dev_dbg(dev, "%s\n", __func__); + pdata->polling_delay = IMX_TMU_POLLING_DELAY_MS; + if (pdata->zone_node) { pdata->regs = (union tmu_regs *)dev_read_addr_ptr(dev); @@ -602,7 +605,8 @@ static int imx_tmu_parse_fdt(struct udevice *dev) dev_dbg(dev, "args.args_count %d, id %d\n", args.args_count, pdata->id); - pdata->polling_delay = dev_read_u32_default(dev, "polling-delay", 1000); + pdata->polling_delay = dev_read_u32_default(dev, "polling-delay", + IMX_TMU_POLLING_DELAY_MS); trips_np = ofnode_path("/thermal-zones/cpu-thermal/trips"); ofnode_for_each_subnode(trips_np, trips_np) { |