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| author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2018-05-08 01:53:39 +0200 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2018-06-02 00:09:15 +0200 |
| commit | 6d7c70d1cd6526dc79e3d3b3faae1c40c1681168 (patch) | |
| tree | 7e8fe054e543f9b9144341c913b20b146b0c5f0e | |
| parent | thermal: tegra: soctherm: add const to struct thermal_cooling_device_ops (diff) | |
| download | linux-6d7c70d1cd6526dc79e3d3b3faae1c40c1681168.tar.xz linux-6d7c70d1cd6526dc79e3d3b3faae1c40c1681168.zip | |
thermal: qcom: tsens: Allow number of sensors to come from DT
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>
| -rw-r--r-- | Documentation/devicetree/bindings/thermal/qcom-tsens.txt | 1 | ||||
| -rw-r--r-- | drivers/thermal/qcom/tsens.c | 12 |
2 files changed, 10 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/thermal/qcom-tsens.txt b/Documentation/devicetree/bindings/thermal/qcom-tsens.txt index 292ed89d900b..06195e8f35e2 100644 --- a/Documentation/devicetree/bindings/thermal/qcom-tsens.txt +++ b/Documentation/devicetree/bindings/thermal/qcom-tsens.txt @@ -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 diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c index 3f9fe6aa51cc..20f3b87d7667 100644 --- a/drivers/thermal/qcom/tsens.c +++ b/drivers/thermal/qcom/tsens.c @@ -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) |