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Message-ID: <681c88b4.df0a0220.27ca51.39ec@mx.google.com>
Date: Thu, 08 May 2025 03:34:28 -0700 (PDT)
From: clabbe.montjoie@...il.com
To: ldewangan@...dia.com,broonie@...nel.org,thierry.reding@...il.com,jonathanh@...dia.com,devnull+webgeek1234.gmail.com@...nel.org
CC: linux-spi@...r.kernel.org,linux-tegra@...r.kernel.org,linux-kernel@...r.kernel.org,stable@...r.kernel.org,webgeek1234@...il.com
Subject: Re: [PATCH] spi: tegra114: Use value to check for invalid delays

> From: Aaron Kling <webgeek1234@...il.com>
> 
> A delay unit of 0 is a valid entry, thus it is not valid to check for
> unused delays. Instead, check the value field; if that is zero, the
> given delay is unset.
> 
> Fixes: 4426e6b4ecf6 ("spi: tegra114: Don't fail set_cs_timing when delays are zero")
> Cc: stable@...r.kernel.org
> Signed-off-by: Aaron Kling <webgeek1234@...il.com>
> ---
>  drivers/spi/spi-tegra114.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
> index 2a8bb798e95b954fe573f1c50445ed2e7fcbfd78..795a8482c2c700c3768bd50bf59971256893a486 100644
> --- a/drivers/spi/spi-tegra114.c
> +++ b/drivers/spi/spi-tegra114.c
> @@ -728,9 +728,9 @@ static int tegra_spi_set_hw_cs_timing(struct spi_device *spi)
>  	u32 inactive_cycles;
>  	u8 cs_state;
>  
> -	if ((setup->unit && setup->unit != SPI_DELAY_UNIT_SCK) ||
> -	    (hold->unit && hold->unit != SPI_DELAY_UNIT_SCK) ||
> -	    (inactive->unit && inactive->unit != SPI_DELAY_UNIT_SCK)) {
> +	if ((setup->value && setup->unit != SPI_DELAY_UNIT_SCK) ||
> +	    (hold->value && hold->unit != SPI_DELAY_UNIT_SCK) ||
> +	    (inactive->value && inactive->unit != SPI_DELAY_UNIT_SCK)) {
>  		dev_err(&spi->dev,
>  			"Invalid delay unit %d, should be SPI_DELAY_UNIT_SCK\n",
>  			SPI_DELAY_UNIT_SCK);
> 
> ---
> base-commit: 0d8d44db295ccad20052d6301ef49ff01fb8ae2d
> change-id: 20250506-spi-tegra114-fixup-dbf6730db087
> 
> Best regards,
> -- 
> Aaron Kling <webgeek1234@...il.com>
> 
> 
> 
> 

Tested-by: Corentin LABBE <clabbe.montjoie@...il.com>
Tested-on: tegra124-jetson-tk1

Thanks
Regards

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