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thermal: rockchip: add temperature dump when panic

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Change-Id: I8cf3bbaea76d379dcfd1c89482254854df62cfea
Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
This commit is contained in:
Rocky Hao 2016-08-17 18:44:12 +08:00 • committed by Huang, Tao
commit 83fb4e1f93
1 changed files with 47 additions and 0 deletions
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47
drivers/thermal/rockchip_thermal.c
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@ -1010,6 +1010,48 @@ static void rockchip_thermal_reset_controller(struct reset_control *reset)
reset_control_deassert(reset);
}
static struct platform_device *thermal_device;
void rockchip_dump_temperature(void)
{
struct rockchip_thermal_data *thermal;
struct platform_device *pdev;
int i;
if (!thermal_device)
return;
pdev = thermal_device;
thermal = platform_get_drvdata(pdev);
for (i = 0; i < thermal->chip->chn_num; i++) {
struct rockchip_thermal_sensor *sensor = &thermal->sensors[i];
struct thermal_zone_device *tz = sensor->tzd;
if (tz->temperature != THERMAL_TEMP_INVALID)
dev_warn(&pdev->dev, "channal %d: temperature(%d C)\n",
i, tz->temperature / 1000);
}
if (thermal->regs) {
pr_warn("THERMAL REGS:\n");
print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET,
32, 4, thermal->regs, 0x88, false);
}
}
EXPORT_SYMBOL_GPL(rockchip_dump_temperature);
static int rockchip_thermal_panic(struct notifier_block *this,
unsigned long ev, void *ptr)
{
rockchip_dump_temperature();
return NOTIFY_DONE;
}
static struct notifier_block rockchip_thermal_panic_block = {
.notifier_call = rockchip_thermal_panic,
};
static int rockchip_thermal_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@ -1122,6 +1164,11 @@ static int rockchip_thermal_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, thermal);
thermal_device = pdev;
atomic_notifier_chain_register(&panic_notifier_list,
&rockchip_thermal_panic_block);
return 0;
err_disable_pclk: