linux-kernel - Re: [PATCH v2 2/9] drm/radeon: Switch from pci_is_thunderbolt_attached() to dev_is

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Date:   Mon, 6 Nov 2023 14:27:39 +0200 (EET)
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     Mario Limonciello <mario.limonciello@....com>
cc:     Karol Herbst <kherbst@...hat.com>, Lyude Paul <lyude@...hat.com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Lukas Wunner <lukas@...ner.de>,
        Danilo Krummrich <dakr@...hat.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Xinhui Pan <Xinhui.Pan@....com>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Mark Gross <markgross@...nel.org>,
        Andreas Noever <andreas.noever@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Yehezkel Bernat <YehezkelShB@...il.com>,
        Pali Rohár <pali@...nel.org>,
        Marek Behún <kabel@...nel.org>,
        "Maciej W . Rozycki" <macro@...am.me.uk>,
        Manivannan Sadhasivam <mani@...nel.org>,
        "open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS" 
        <dri-devel@...ts.freedesktop.org>,
        "open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS" 
        <nouveau@...ts.freedesktop.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:RADEON and AMDGPU DRM DRIVERS" 
        <amd-gfx@...ts.freedesktop.org>,
        "open list:PCI SUBSYSTEM" <linux-pci@...r.kernel.org>,
        "open list:ACPI" <linux-acpi@...r.kernel.org>,
        "open list:X86 PLATFORM DRIVERS" 
        <platform-driver-x86@...r.kernel.org>,
        "open list:THUNDERBOLT DRIVER" <linux-usb@...r.kernel.org>
Subject: Re: [PATCH v2 2/9] drm/radeon: Switch from pci_is_thunderbolt_attached()
 to dev_is_removable()

On Fri, 3 Nov 2023, Mario Limonciello wrote:

> pci_is_thunderbolt_attached() only works for Intel TBT devices. Switch to
> using dev_is_removable() to be able to detect USB4 devices as well.

Same here as with 1/9.

-- 
 i.

> Signed-off-by: Mario Limonciello <mario.limonciello@....com>
> ---
>  drivers/gpu/drm/radeon/radeon_device.c | 4 ++--
>  drivers/gpu/drm/radeon/radeon_kms.c    | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> index afbb3a80c0c6..ba0ca0694d18 100644
> --- a/drivers/gpu/drm/radeon/radeon_device.c
> +++ b/drivers/gpu/drm/radeon/radeon_device.c
> @@ -1429,7 +1429,7 @@ int radeon_device_init(struct radeon_device *rdev,
>  
>  	if (rdev->flags & RADEON_IS_PX)
>  		runtime = true;
> -	if (!pci_is_thunderbolt_attached(rdev->pdev))
> +	if (!dev_is_removable(&rdev->pdev->dev))
>  		vga_switcheroo_register_client(rdev->pdev,
>  					       &radeon_switcheroo_ops, runtime);
>  	if (runtime)
> @@ -1519,7 +1519,7 @@ void radeon_device_fini(struct radeon_device *rdev)
>  	radeon_bo_evict_vram(rdev);
>  	radeon_audio_component_fini(rdev);
>  	radeon_fini(rdev);
> -	if (!pci_is_thunderbolt_attached(rdev->pdev))
> +	if (!dev_is_removable(&rdev->pdev->dev))
>  		vga_switcheroo_unregister_client(rdev->pdev);
>  	if (rdev->flags & RADEON_IS_PX)
>  		vga_switcheroo_fini_domain_pm_ops(rdev->dev);
> diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
> index a16590c6247f..ead912a58ab8 100644
> --- a/drivers/gpu/drm/radeon/radeon_kms.c
> +++ b/drivers/gpu/drm/radeon/radeon_kms.c
> @@ -138,7 +138,7 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
>  	if ((radeon_runtime_pm != 0) &&
>  	    radeon_has_atpx() &&
>  	    ((flags & RADEON_IS_IGP) == 0) &&
> -	    !pci_is_thunderbolt_attached(pdev))
> +	    !dev_is_removable(&pdev->dev))
>  		flags |= RADEON_IS_PX;
>  
>  	/* radeon_device_init should report only fatal error
>