[PATCH 6/9] soc/tegra: fuse: Implement tegra_is_silicon()

[Jon Hunter]

On 16/07/2020 15:18, Thierry Reding wrote:
> From: Thierry Reding <treding at nvidia.com>
> 
> This function can be used by drivers to determine whether code is
> running on silicon or on a simulation platform.
> 
> Signed-off-by: Thierry Reding <treding at nvidia.com>
> ---
>  drivers/soc/tegra/fuse/tegra-apbmisc.c | 13 +++++++++++++
>  include/soc/tegra/fuse.h               |  1 +
>  2 files changed, 14 insertions(+)
> 
> diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c
> index 89f1479b4d0e..be6b7fc169ca 100644
> --- a/drivers/soc/tegra/fuse/tegra-apbmisc.c
> +++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c
> @@ -52,6 +52,19 @@ u8 tegra_get_platform(void)
>  	return (tegra_read_chipid() >> 20) & 0xf;
>  }
>  
> +bool tegra_is_silicon(void)
> +{
> +	switch (tegra_get_chip_id()) {
> +	case TEGRA194:
> +		if (tegra_get_platform() == 0)
> +			return true;
> +
> +		return false;
> +	}
> +
> +	return false;
> +}
> +

Should we do this the other way around and default to is-silicon?

For devices prior to Tegra194, this will always return false.

Jon

-- 
nvpublic