From: Krzysztof Kozlowski <krzk@kernel.org>
To: "Łukasz Stelmach" <l.stelmach@samsung.com>
Cc: linux-samsung-soc@vger.kernel.org, b.zolnierkie@samsung.com,
linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
Mark Brown <broonie@kernel.org>, Kukjin Kim <kgene@kernel.org>,
Andi Shyti <andi@etezian.org>,
linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com
Subject: Re: [PATCH v2 1/9] spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath()
Date: Sat, 22 Aug 2020 14:01:21 +0200 [thread overview]
Message-ID: <20200822120121.GA20423@kozik-lap> (raw)
In-Reply-To: <20200821161401.11307-2-l.stelmach@samsung.com>
On Fri, Aug 21, 2020 at 06:13:53PM +0200, Łukasz Stelmach wrote:
> This and the next patch fix issues with DMA transfers bigger than
Just:
"Fix issues with DMA transfers..."
The order of patches could change when applying and backporting.
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Best regards,
Krzysztof
> 512 bytes on Exynos3250. Without the patches such transfers fail
> to complete. This solution to the problem is found in the vendor kernel
> for ARTIK5 boards based on Exynos3250.
>
> Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
> ---
> drivers/spi/spi-s3c64xx.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
> index 924b24441789..26c7cb79cd78 100644
> --- a/drivers/spi/spi-s3c64xx.c
> +++ b/drivers/spi/spi-s3c64xx.c
> @@ -685,11 +685,11 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master,
> sdd->state &= ~RXBUSY;
> sdd->state &= ~TXBUSY;
>
> - s3c64xx_enable_datapath(sdd, xfer, use_dma);
> -
> /* Start the signals */
> s3c64xx_spi_set_cs(spi, true);
>
> + s3c64xx_enable_datapath(sdd, xfer, use_dma);
> +
> spin_unlock_irqrestore(&sdd->lock, flags);
>
> if (use_dma)
> --
> 2.26.2
>
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next prev parent reply other threads:[~2020-08-22 12:02 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200821161404eucas1p20577160d1bff2e8f5cae7403e93716ab@eucas1p2.samsung.com>
2020-08-21 16:13 ` [PATCH v2 0/9] Some fixes for spi-s3c64xx Łukasz Stelmach
2020-08-21 16:13 ` [PATCH v2 1/9] spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath() Łukasz Stelmach
2020-08-22 12:01 ` Krzysztof Kozlowski [this message]
2020-08-21 16:13 ` [PATCH v2 2/9] spi: spi-s3s64xx: Add S3C64XX_SPI_QUIRK_CS_AUTO for Exynos3250 Łukasz Stelmach
2020-08-22 12:02 ` Krzysztof Kozlowski
2020-08-21 16:13 ` [PATCH v2 3/9] spi: spi-s3c64xx: Report more information when errors occur Łukasz Stelmach
2020-08-22 12:03 ` Krzysztof Kozlowski
2020-08-21 16:13 ` [PATCH v2 4/9] spi: spi-s3c64xx: Rename S3C64XX_SPI_SLAVE_* to S3C64XX_SPI_CS_* Łukasz Stelmach
2020-08-21 16:13 ` [PATCH v2 5/9] spi: spi-s3c64xx: Fix doc comment for struct s3c64xx_spi_driver_data Łukasz Stelmach
2020-08-22 12:26 ` Krzysztof Kozlowski
2020-08-21 16:13 ` [PATCH v2 6/9] spi: spi-s3c64xx: Check return values Łukasz Stelmach
2020-08-22 12:37 ` Krzysztof Kozlowski
2020-08-25 19:06 ` Sylwester Nawrocki
2020-09-01 15:21 ` Lukasz Stelmach
2020-09-02 8:14 ` Sylwester Nawrocki
2020-09-03 8:45 ` Lukasz Stelmach
2020-09-03 11:18 ` Sylwester Nawrocki
2020-08-21 16:13 ` [PATCH v2 7/9] spi: spi-s3c64xx: Ensure cur_speed holds actual clock value Łukasz Stelmach
2020-08-22 12:43 ` Krzysztof Kozlowski
2020-08-22 14:52 ` Tomasz Figa
2020-08-22 15:18 ` Krzysztof Kozlowski
2020-08-22 15:20 ` Tomasz Figa
2020-08-24 13:17 ` Lukasz Stelmach
2020-08-24 13:21 ` Tomasz Figa
2020-08-25 9:01 ` Lukasz Stelmach
2020-08-25 15:11 ` Tomasz Figa
2020-08-25 15:45 ` Lukasz Stelmach
2020-08-22 14:54 ` Tomasz Figa
2020-08-21 16:14 ` [PATCH v2 8/9] spi: spi-s3c64xx: Increase transfer timeout Łukasz Stelmach
2020-08-22 12:43 ` Krzysztof Kozlowski
2020-08-21 16:14 ` [PATCH v2 9/9] spi: spi-s3c64xx: Turn on interrupts upon resume Łukasz Stelmach
2020-08-22 12:44 ` Krzysztof Kozlowski
2020-10-01 15:21 ` [PATCH v2 RESEND 0/9] Some fixes for spi-s3c64xx Łukasz Stelmach
2020-10-01 15:21 ` [PATCH v2 RESEND 1/9] spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath() Łukasz Stelmach
2020-10-01 15:21 ` [PATCH v2 RESEND 2/9] spi: spi-s3s64xx: Add S3C64XX_SPI_QUIRK_CS_AUTO for Exynos3250 Łukasz Stelmach
2020-10-01 19:04 ` Krzysztof Kozlowski
2020-10-02 10:13 ` Lukasz Stelmach
2020-10-01 15:21 ` [PATCH v2 RESEND 3/9] spi: spi-s3c64xx: Check return values Łukasz Stelmach
2020-10-01 15:21 ` [PATCH v2 RESEND 4/9] spi: spi-s3c64xx: Report more information when errors occur Łukasz Stelmach
2020-10-01 15:21 ` [PATCH v2 RESEND 5/9] spi: spi-s3c64xx: Rename S3C64XX_SPI_SLAVE_* to S3C64XX_SPI_CS_* Łukasz Stelmach
2020-10-01 15:21 ` [PATCH v2 RESEND 6/9] spi: spi-s3c64xx: Fix doc comment for struct s3c64xx_spi_driver_data Łukasz Stelmach
2020-10-01 15:21 ` [PATCH v2 RESEND 7/9] spi: spi-s3c64xx: Ensure cur_speed holds actual clock value Łukasz Stelmach
2020-10-01 19:12 ` Krzysztof Kozlowski
2020-10-01 15:21 ` [PATCH v2 RESEND 8/9] spi: spi-s3c64xx: Increase transfer timeout Łukasz Stelmach
2020-10-01 15:21 ` [PATCH v2 RESEND 9/9] spi: spi-s3c64xx: Turn on interrupts upon resume Łukasz Stelmach
2020-10-01 16:13 ` [PATCH v2 RESEND 0/9] Some fixes for spi-s3c64xx Mark Brown
2020-10-01 18:23 ` Lukasz Stelmach
2020-10-01 19:02 ` Krzysztof Kozlowski
2020-10-01 19:43 ` Mark Brown
2020-10-02 6:18 ` Krzysztof Kozlowski
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