Re: [PATCH] memory: omap-gpmc: fixup wrongly hierarchy of the sub-devices

From: Roger Quadros
Date: Fri Mar 01 2024 - 06:23:29 EST


Hi,

Thanks for the patch but can you please re-send the patch in plain text format?
Please refer to this article for more details.

https://subspace.kernel.org/etiquette.html

On 01/03/2024 01:52, Brock.Zheng wrote:
> On TI-AM335x,my FPGA under GPMC local-bus can not work on 6.x kernel.
>
> GPMC <--> FPGA <--> sub-devices....
>
> I found that the platform sub-devices is in wrongly organized
> hierarchy. The grandchildren are now under the GPMC device
> directly, not under it's father(FPGA).>
> Signed-off-by: Brock.Zheng <yzheng@xxxxxxxxxxxxx>
> ---
> drivers/memory/omap-gpmc.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
> index 80d038884207..1f2568e43086 100644
> --- a/drivers/memory/omap-gpmc.c
> +++ b/drivers/memory/omap-gpmc.c
> @@ -2175,6 +2175,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
> int ret, cs;
> u32 val;
> struct gpmc_device *gpmc = platform_get_drvdata(pdev);
> + struct platform_device *child_pdev = NULL;
>
> if (of_property_read_u32(child, "reg", &cs) < 0) {
> dev_err(&pdev->dev, "%pOF has no 'reg' property\n",
> @@ -2330,11 +2331,12 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
> no_timings:
>
> /* create platform device, NULL on error or when disabled */
> - if (!of_platform_device_create(child, NULL, &pdev->dev))
> + child_pdev = of_platform_device_create(child, NULL, &pdev->dev);
> + if (!child_pdev)
> goto err_child_fail;
>
> /* create children and other common bus children */
> - if (of_platform_default_populate(child, NULL, &pdev->dev))
> + if (of_platform_default_populate(child, NULL, &child_pdev->dev))
> goto err_child_fail;
>
> return 0;

--
cheers,
-roger