Re: [PATCH 1/3] ARM: i.MX8MQ: Invert the logic in imx8mq_cpu_revision()

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On Mon, Feb 11, 2019 at 06:27:47PM -0800, Andrey Smirnov wrote:
> Invert the logic in imx8mq_cpu_revision() and convert it to use early
> return. This is done in perparation for more corner case logic added
> in the following commits. No functional change intended.
> 
> Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> ---
>  arch/arm/mach-imx/include/mach/imx8mq.h | 26 ++++++++++++-------------
>  1 file changed, 13 insertions(+), 13 deletions(-)

Applied, thanks

Sascha

> 
> diff --git a/arch/arm/mach-imx/include/mach/imx8mq.h b/arch/arm/mach-imx/include/mach/imx8mq.h
> index f4a537d2b..2a7cf9977 100644
> --- a/arch/arm/mach-imx/include/mach/imx8mq.h
> +++ b/arch/arm/mach-imx/include/mach/imx8mq.h
> @@ -22,19 +22,19 @@ static inline int imx8mq_cpu_revision(void)
>  	void __iomem *anatop = IOMEM(MX8MQ_ANATOP_BASE_ADDR);
>  	uint32_t revision = FIELD_GET(DIGPROG_MINOR,
>  				      readl(anatop + MX8MQ_ANATOP_DIGPROG));
> -
> -	if (revision == IMX_CHIP_REV_1_0) {
> -		uint32_t rom_version;
> -		/*
> -		 * For B0 chip, the DIGPROG is not updated, still TO1.0.
> -		 * we have to check ROM version further
> -		 */
> -		rom_version = readl(IOMEM(IMX8MQ_ROM_VERSION_A0));
> -		if (rom_version != IMX_CHIP_REV_1_0) {
> -			rom_version = readl(IOMEM(IMX8MQ_ROM_VERSION_B0));
> -			if (rom_version >= IMX_CHIP_REV_2_0)
> -				revision = IMX_CHIP_REV_2_0;
> -		}
> +	uint32_t rom_version;
> +
> +	if (revision != IMX_CHIP_REV_1_0)
> +		return revision;
> +	/*
> +	 * For B0 chip, the DIGPROG is not updated, still TO1.0.
> +	 * we have to check ROM version further
> +	 */
> +	rom_version = readl(IOMEM(IMX8MQ_ROM_VERSION_A0));
> +	if (rom_version != IMX_CHIP_REV_1_0) {
> +		rom_version = readl(IOMEM(IMX8MQ_ROM_VERSION_B0));
> +		if (rom_version >= IMX_CHIP_REV_2_0)
> +			revision = IMX_CHIP_REV_2_0;
>  	}
>  
>  	return revision;
> -- 
> 2.20.1
> 
> 
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