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thermal: qcom: tsens: Allow number of sensors to come from DT

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For platforms that has multiple copies of the TSENS hardware block it's
necessary to be able to specify the number of sensors per block in DeviceTree.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Bjorn Andersson 2018-05-07 16:53:39 -07:00 committed by Eduardo Valentin
parent cc50ba5e67
commit 6d7c70d1cd
2 changed files with 10 additions and 3 deletions
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1
Documentation/devicetree/bindings/thermal/qcom-tsens.txt
View File

@ -8,6 +8,7 @@ Required properties:
- reg: Address range of the thermal registers
- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description.
- #qcom,sensors: Number of sensors in tsens block
- Refer to Documentation/devicetree/bindings/nvmem/nvmem.txt to know how to specify
nvmem cells

12
drivers/thermal/qcom/tsens.c
View File

@ -116,6 +116,7 @@ static int tsens_probe(struct platform_device *pdev)
struct tsens_device *tmdev;
const struct tsens_data *data;
const struct of_device_id *id;
u32 num_sensors;
if (pdev->dev.of_node)
dev = &pdev->dev;
@ -130,18 +131,23 @@ static int tsens_probe(struct platform_device *pdev)
else
data = &data_8960;
if (data->num_sensors <= 0) {
num_sensors = data->num_sensors;
if (np)
of_property_read_u32(np, "#qcom,sensors", &num_sensors);
if (num_sensors <= 0) {
dev_err(dev, "invalid number of sensors\n");
return -EINVAL;
}
tmdev = devm_kzalloc(dev, sizeof(*tmdev) +
data->num_sensors * sizeof(*s), GFP_KERNEL);
num_sensors * sizeof(*s), GFP_KERNEL);
if (!tmdev)
return -ENOMEM;
tmdev->dev = dev;
tmdev->num_sensors = data->num_sensors;
tmdev->num_sensors = num_sensors;
tmdev->ops = data->ops;
for (i = 0; i < tmdev->num_sensors; i++) {
if (data->hw_ids)