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From: Greg KH <gregkh@linuxfoundation.org>
To: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
	Michael Trimarchi <michael@amarulasolutions.com>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>, Vinod Koul <vkoul@kernel.org>,
	dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] dmaengine: mxs: fix driver registering
Date: Mon, 23 May 2022 08:26:15 +0200	[thread overview]
Message-ID: <YospB9JZdwVfkIhj@kroah.com> (raw)
In-Reply-To: <20220522202223.1343109-1-dario.binacchi@amarulasolutions.com>

On Sun, May 22, 2022 at 10:22:23PM +0200, Dario Binacchi wrote:
> Driver registration fails on SOC imx8mn as its supplier, the clock
> control module, is not ready. Since platform_driver_probe(), as
> reported by its description, is incompatible with deferred probing,
> we have to use platform_driver_register().
> 
> Fixes: a580b8c5429a ("dmaengine: mxs-dma: add dma support for i.MX23/28")
> Co-developed-by: Michael Trimarchi <michael@amarulasolutions.com>
> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
> 
> ---
> 
>  drivers/dma/mxs-dma.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
> index 994fc4d2aca4..b8a3e692330d 100644
> --- a/drivers/dma/mxs-dma.c
> +++ b/drivers/dma/mxs-dma.c
> @@ -670,7 +670,7 @@ static enum dma_status mxs_dma_tx_status(struct dma_chan *chan,
>  	return mxs_chan->status;
>  }
>  
> -static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma)
> +static int mxs_dma_init(struct mxs_dma_engine *mxs_dma)
>  {
>  	int ret;
>  
> @@ -741,7 +741,7 @@ static struct dma_chan *mxs_dma_xlate(struct of_phandle_args *dma_spec,
>  				     ofdma->of_node);
>  }
>  
> -static int __init mxs_dma_probe(struct platform_device *pdev)
> +static int mxs_dma_probe(struct platform_device *pdev)
>  {
>  	struct device_node *np = pdev->dev.of_node;
>  	const struct mxs_dma_type *dma_type;
> @@ -839,10 +839,7 @@ static struct platform_driver mxs_dma_driver = {
>  		.name	= "mxs-dma",
>  		.of_match_table = mxs_dma_dt_ids,
>  	},
> +	.probe = mxs_dma_probe,
>  };
>  
> -static int __init mxs_dma_module_init(void)
> -{
> -	return platform_driver_probe(&mxs_dma_driver, mxs_dma_probe);
> -}
> -subsys_initcall(mxs_dma_module_init);
> +module_platform_driver(mxs_dma_driver);
> -- 
> 2.32.0
> 

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>

WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <gregkh@linuxfoundation.org>
To: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
	Michael Trimarchi <michael@amarulasolutions.com>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>, Vinod Koul <vkoul@kernel.org>,
	dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] dmaengine: mxs: fix driver registering
Date: Mon, 23 May 2022 08:26:15 +0200	[thread overview]
Message-ID: <YospB9JZdwVfkIhj@kroah.com> (raw)
In-Reply-To: <20220522202223.1343109-1-dario.binacchi@amarulasolutions.com>

On Sun, May 22, 2022 at 10:22:23PM +0200, Dario Binacchi wrote:
> Driver registration fails on SOC imx8mn as its supplier, the clock
> control module, is not ready. Since platform_driver_probe(), as
> reported by its description, is incompatible with deferred probing,
> we have to use platform_driver_register().
> 
> Fixes: a580b8c5429a ("dmaengine: mxs-dma: add dma support for i.MX23/28")
> Co-developed-by: Michael Trimarchi <michael@amarulasolutions.com>
> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
> 
> ---
> 
>  drivers/dma/mxs-dma.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
> index 994fc4d2aca4..b8a3e692330d 100644
> --- a/drivers/dma/mxs-dma.c
> +++ b/drivers/dma/mxs-dma.c
> @@ -670,7 +670,7 @@ static enum dma_status mxs_dma_tx_status(struct dma_chan *chan,
>  	return mxs_chan->status;
>  }
>  
> -static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma)
> +static int mxs_dma_init(struct mxs_dma_engine *mxs_dma)
>  {
>  	int ret;
>  
> @@ -741,7 +741,7 @@ static struct dma_chan *mxs_dma_xlate(struct of_phandle_args *dma_spec,
>  				     ofdma->of_node);
>  }
>  
> -static int __init mxs_dma_probe(struct platform_device *pdev)
> +static int mxs_dma_probe(struct platform_device *pdev)
>  {
>  	struct device_node *np = pdev->dev.of_node;
>  	const struct mxs_dma_type *dma_type;
> @@ -839,10 +839,7 @@ static struct platform_driver mxs_dma_driver = {
>  		.name	= "mxs-dma",
>  		.of_match_table = mxs_dma_dt_ids,
>  	},
> +	.probe = mxs_dma_probe,
>  };
>  
> -static int __init mxs_dma_module_init(void)
> -{
> -	return platform_driver_probe(&mxs_dma_driver, mxs_dma_probe);
> -}
> -subsys_initcall(mxs_dma_module_init);
> +module_platform_driver(mxs_dma_driver);
> -- 
> 2.32.0
> 

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2022-05-23  6:42 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-22 20:22 [PATCH] dmaengine: mxs: fix driver registering Dario Binacchi
2022-05-22 20:22 ` Dario Binacchi
2022-05-23  6:26 ` Greg KH [this message]
2022-05-23  6:26   ` Greg KH

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