linux-kernel - Re: [PATCH] spi: hisi-kunpeng: Fixed the wrong debugfs node name in hisi

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Message-ID: <f1e88438-c9ea-435d-ab6b-763a64fcbe95@huawei.com>
Date: Mon, 3 Nov 2025 19:09:37 +0800
From: Yang Shen <shenyang39@...wei.com>
To: Devyn Liu <liudingyuan@...artners.com>, <broonie@...nel.org>
CC: <linux-spi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<jonathan.cameron@...wei.com>, <kangfenglong@...wei.com>,
	<liuyonglong@...wei.com>, <lujunhua7@...artners.com>, <yubowen8@...wei.com>,
	<liudingyuan@...wei.com>
Subject: Re: [PATCH] spi: hisi-kunpeng: Fixed the wrong debugfs node name in
 hisi_spi debugfs initialization



在 2025/10/24 14:31, Devyn Liu 写道:
> In hisi_spi_debugfs_init, spi controller pointer is calculated by
> container_of macro, and the member is hs->dev. But the host pointer cannot
> be calculated offset directly by this, because hs->dev points to the
> device in platform device(pdev->dev), and it is the host->dev.parent
> points to the pdev->dev, which is set in __spi_alloc_controller.
> 
> In this patch, this issues is fixed by getting the spi_controller data
> from pdev->dev->driver_data directly, driver_data points to the spi
> controller data in the probe stage.
> 
> Signed-off-by: Devyn Liu <liudingyuan@...artners.com>
> ---
>   drivers/spi/spi-hisi-kunpeng.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
Reviewed-by: Yang Shen <shenyang39@...wei.com>