On Thu 12 Dec 02:38 PST 2019, Amit Kucheria wrote:
> In order for the old DTBs to continue working, the new interrupt code
> must not return an error if interrupts are not defined. Don't return an
> error in case of -ENXIO.
>
> Fixes: 634e11d5b450a ("drivers: thermal: tsens: Add interrupt support")
> Suggested-by: Stephan Gerhold <stephan@xxxxxxxxxxx>
> Signed-off-by: Amit Kucheria <amit.kucheria@xxxxxxxxxx>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Tested-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> ---
> drivers/thermal/qcom/tsens.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
> index 015e7d2015985..0e7cf52369326 100644
> --- a/drivers/thermal/qcom/tsens.c
> +++ b/drivers/thermal/qcom/tsens.c
> @@ -110,6 +110,9 @@ static int tsens_register(struct tsens_priv *priv)
> irq = platform_get_irq_byname(pdev, "uplow");
> if (irq < 0) {
> ret = irq;
> + /* For old DTs with no IRQ defined */
> + if (irq == -ENXIO)
> + ret = 0;
> goto err_put_device;
> }
>
> --
> 2.20.1
>
