Re: [PATCH 6/8] thermal:cpu cooling:ti: Provide deferred probing for ti drivers

[Eduardo Valentin]

Lukaz,

On Thu, Nov 13, 2014 at 06:02:43PM +0100, Lukasz Majewski wrote:
> When CPU freq is used as a thermal zone cooling device, one needs to wait
> until cpufreq subsystem is properly initialized.
> 
> This code is similar to the one already available in imx_thermal.c file.
> 
> Signed-off-by: Lukasz Majewski <l.majewski@xxxxxxxxxxx>
> ---
>  drivers/thermal/ti-soc-thermal/ti-bandgap.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> index 634b6ce..0ac5ead 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> @@ -40,6 +40,7 @@
>  #include <linux/of_irq.h>
>  #include <linux/of_gpio.h>
>  #include <linux/io.h>
> +#include <linux/cpufreq.h>
>  
>  #include "ti-bandgap.h"
>  
> @@ -1196,6 +1197,12 @@ int ti_bandgap_probe(struct platform_device *pdev)
>  	struct ti_bandgap *bgp;
>  	int clk_rate, ret = 0, i;
>  
> +#ifdef CONFIG_CPU_THERMAL
> +	if (!cpufreq_get_current_driver()) {
> +		dev_dbg(&pdev->dev, "no cpufreq driver!");
> +		return -EPROBE_DEFER;
> +	}
> +#endif

This is part of drivers/thermal/ti-soc-thermal/ti-thermal-common.c. So,
no need to duplicate it in here.

>  	bgp = ti_bandgap_build(pdev);
>  	if (IS_ERR(bgp)) {
>  		dev_err(&pdev->dev, "failed to fetch platform data\n");
> -- 
> 2.0.0.rc2
>

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