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From: Dmitry Osipenko <digetx@gmail.com>
To: Sowjanya Komatineni <skomatineni@nvidia.com>,
	thierry.reding@gmail.com, jonathanh@nvidia.com,
	frankc@nvidia.com, hverkuil@xs4all.nl, sakari.ailus@iki.fi,
	robh+dt@kernel.org, helen.koike@collabora.com
Cc: sboyd@kernel.org, gregkh@linuxfoundation.org,
	linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-i2c@vger.kernel.org
Subject: Re: [RFC PATCH v4 05/14] i2c: tegra: Avoid tegra_i2c_init_dma() for Tegra210 vi i2c
Date: Mon, 27 Jul 2020 02:57:57 +0300
Message-ID: <6dec1975-5b5c-8677-5be6-e95cc0e8e34d@gmail.com> (raw)
In-Reply-To: <1595548272-9809-6-git-send-email-skomatineni@nvidia.com>

24.07.2020 02:51, Sowjanya Komatineni пишет:
> VI I2C is on host1x bus so APB DMA can't be used for Tegra210 VI
> I2C and there are no tx and rx dma channels for VI I2C.
> 
> So, avoid attempt of requesting DMA channels.
> 
> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
> ---
>  drivers/i2c/busses/i2c-tegra.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
> index 1bf3666..00d3e4d 100644
> --- a/drivers/i2c/busses/i2c-tegra.c
> +++ b/drivers/i2c/busses/i2c-tegra.c
> @@ -421,7 +421,7 @@ static int tegra_i2c_init_dma(struct tegra_i2c_dev *i2c_dev)
>  	dma_addr_t dma_phys;
>  	int err;
>  
> -	if (!i2c_dev->hw->has_apb_dma)
> +	if (!i2c_dev->hw->has_apb_dma || i2c_dev->is_vi)
>  		return 0;
>  
>  	if (!IS_ENABLED(CONFIG_TEGRA20_APB_DMA)) {
> 

Reviewed-by: Dmitry Osipenko <digetx@gmail.com>

  reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-23 23:50 [RFC PATCH v4 00/14] Support for Tegra video capture from external sensor Sowjanya Komatineni
2020-07-23 23:50 ` [RFC PATCH v4 01/14] i2c: tegra: Don't mark VI I2C as IRQ safe runtime PM Sowjanya Komatineni
2020-07-26 23:30   ` Dmitry Osipenko
2020-07-23 23:51 ` [RFC PATCH v4 03/14] i2c: tegra: Fix the error path in tegra_i2c_runtime_resume Sowjanya Komatineni
2020-07-26 23:41   ` Dmitry Osipenko
2020-07-23 23:51 ` [RFC PATCH v4 04/14] i2c: tegra: Fix runtime resume to re-init VI I2C Sowjanya Komatineni
2020-07-26 23:53   ` Dmitry Osipenko
2020-07-27 20:58     ` Sowjanya Komatineni
2020-07-23 23:51 ` [RFC PATCH v4 05/14] i2c: tegra: Avoid tegra_i2c_init_dma() for Tegra210 vi i2c Sowjanya Komatineni
2020-07-26 23:57   ` Dmitry Osipenko [this message]
2020-07-23 23:51 ` [RFC PATCH v4 06/14] media: tegra-video: Fix channel format alignment Sowjanya Komatineni
2020-07-23 23:51 ` [RFC PATCH v4 07/14] media: tegra-video: Enable TPG based on kernel config Sowjanya Komatineni
     [not found] ` <1595548272-9809-1-git-send-email-skomatineni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2020-07-23 23:51   ` [RFC PATCH v4 02/14] i2c: tegra: Remove NULL pointer check before clk_enable/disable/prepare/unprepare Sowjanya Komatineni
2020-07-23 23:51   ` [RFC PATCH v4 08/14] media: tegra-video: Update format lookup to offset based Sowjanya Komatineni
2020-07-23 23:51   ` [RFC PATCH v4 09/14] dt-bindings: tegra: Update VI and CSI bindings with port info Sowjanya Komatineni
2020-07-23 23:51   ` [RFC PATCH v4 10/14] media: tegra-video: Add support for external sensor capture Sowjanya Komatineni
2020-07-23 23:51   ` [RFC PATCH v4 12/14] gpu: host1x: mipi: Keep MIPI clock enabled till calibration is done Sowjanya Komatineni
2020-07-27  0:10     ` Dmitry Osipenko
2020-07-23 23:51   ` [RFC PATCH v4 14/14] media: tegra-video: Compute settle times based on the clock rate Sowjanya Komatineni
2020-07-23 23:51 ` [RFC PATCH v4 11/14] media: tegra-video: Add support for selection ioctl ops Sowjanya Komatineni
2020-07-23 23:51 ` [RFC PATCH v4 13/14] media: tegra-video: Add CSI MIPI pads calibration Sowjanya Komatineni
2020-07-24  9:43 ` [RFC PATCH v4 00/14] Support for Tegra video capture from external sensor Hans Verkuil
2020-07-24 19:16   ` Wolfram Sang
2020-07-27  0:25   ` Dmitry Osipenko

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