linux-kernel - Re: [PATCH] drm/stm: remove conflicting framebuffers

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Date:   Tue, 4 Jan 2022 14:52:52 +0100
From:   Philippe CORNU <philippe.cornu@...s.st.com>
To:     Thomas Zimmermann <tzimmermann@...e.de>,
        Yannick Fertre <yannick.fertre@...s.st.com>,
        Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        <dri-devel@...ts.freedesktop.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/stm: remove conflicting framebuffers



On 12/14/21 11:15 AM, Philippe CORNU wrote:
> 
> 
> On 12/6/21 3:23 PM, Thomas Zimmermann wrote:
>> Hi
>>
>> Am 06.12.21 um 14:47 schrieb Yannick Fertre:
>>> In case of using simplefb or another conflicting framebuffer,
>>> call drm_aperture_remove_framebuffers() to remove memory allocated.
>>>
>>> Signed-off-by: Yannick Fertre <yannick.fertre@...s.st.com>
>>
>> The patch should have contained a note that this is version 2 of the 
>> change with a short changelog. Anyway
>>
>> Reviewed-by: Thomas Zimmermann <tzimmermann@...e.de>
>>
>> Best regards
>> Thomas
>>
>>> ---
>>>   drivers/gpu/drm/stm/drv.c | 5 +++++
>>>   1 file changed, 5 insertions(+)
>>>
>>> diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c
>>> index 222869b232ae..9f441aadf2d5 100644
>>> --- a/drivers/gpu/drm/stm/drv.c
>>> +++ b/drivers/gpu/drm/stm/drv.c
>>> @@ -14,6 +14,7 @@
>>>   #include <linux/of_platform.h>
>>>   #include <linux/pm_runtime.h>
>>> +#include <drm/drm_aperture.h>
>>>   #include <drm/drm_atomic.h>
>>>   #include <drm/drm_atomic_helper.h>
>>>   #include <drm/drm_drv.h>
>>> @@ -183,6 +184,10 @@ static int stm_drm_platform_probe(struct 
>>> platform_device *pdev)
>>>       DRM_DEBUG("%s\n", __func__);
>>> +    ret = drm_aperture_remove_framebuffers(false, &drv_driver);
>>> +    if (ret)
>>> +        return ret;
>>> +
> 
> Hi Yannick,
> and many thanks for your patch.
> Acked-by: Philippe Cornu <philippe.cornu@...s.st.com>
> Philippe :-)
> 
> 
>>>       dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
>>>       ddev = drm_dev_alloc(&drv_driver, dev);
>>>
>>

Applied on drm-misc-next.
Many thanks for your patch,
Philippe :-)