[PATCH v2] drm/hisilicon: Fixed pcie resource conflict between drm and firmware

Thomas Zimmermann tzimmermann at suse.de
Tue Feb 25 07:21:42 UTC 2020


Hi

Am 24.02.20 um 07:01 schrieb Tian Tao:
> use the drm_fb_helper_remove_conflicting_pci_framebuffer to remove
> the framebuffer initialized by fireware/bootloader to avoid resource
> conflict.
> 
> Signed-off-by: Tian Tao <tiantao6 at hisilicon.com>
> 
> ---
> v2: 	use the general API to remove the conflict resource instead of rolling
> 	our own.

Nit: the patch's version info is usually a part of the commit messages.
It goes between the description and the Signed-off-by line.

Acked-by: Thomas Zimmermann <tzimmermann at suse.de>

> ---
> ---
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> index 4a8a4cf..7518980 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> @@ -327,6 +327,11 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
>  	struct drm_device *dev;
>  	int ret;
>  
> +	ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev,
> +							"hibmcdrmfb");
> +	if (ret)
> +		return ret;
> +
>  	dev = drm_dev_alloc(&hibmc_driver, &pdev->dev);
>  	if (IS_ERR(dev)) {
>  		DRM_ERROR("failed to allocate drm_device\n");
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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