linux-kernel - Re: [PATCH v2 02/12] remoteproc: stm32: Request IRQ with platform device

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Date:   Wed, 13 May 2020 21:57:24 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     ohad@...ery.com, mcoquelin.stm32@...il.com,
        alexandre.torgue@...com, loic.pallardy@...com,
        arnaud.pouliquen@...com, linux-remoteproc@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 02/12] remoteproc: stm32: Request IRQ with platform
 device

On Fri 24 Apr 13:24 PDT 2020, Mathieu Poirier wrote:

> Request IRQ with platform device rather than remote proc in order to
> call stm32_rproc_parse_dt() before rproc_alloc().  That way we can
> know whether we need to synchronise with the MCU or not.
> 
> Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> Reviewed-by: Loic Pallardy <loic.pallardy@...com>

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

> ---
>  drivers/remoteproc/stm32_rproc.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c
> index 91fd59af0ffe..1ac90adba9b1 100644
> --- a/drivers/remoteproc/stm32_rproc.c
> +++ b/drivers/remoteproc/stm32_rproc.c
> @@ -261,7 +261,8 @@ static int stm32_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
>  
>  static irqreturn_t stm32_rproc_wdg(int irq, void *data)
>  {
> -	struct rproc *rproc = data;
> +	struct platform_device *pdev = data;
> +	struct rproc *rproc = platform_get_drvdata(pdev);
>  
>  	rproc_report_crash(rproc, RPROC_WATCHDOG);
>  
> @@ -553,7 +554,7 @@ static int stm32_rproc_parse_dt(struct platform_device *pdev)
>  
>  	if (irq > 0) {
>  		err = devm_request_irq(dev, irq, stm32_rproc_wdg, 0,
> -				       dev_name(dev), rproc);
> +				       dev_name(dev), pdev);
>  		if (err) {
>  			dev_err(dev, "failed to request wdg irq\n");
>  			return err;
> -- 
> 2.20.1
>