Messages in this thread | | | Subject | Re: [PATCH v1 2/2] fbdev: Kconfig: Add HAS_IOMEM dependency for FB_OPENCORES | From | Farhan Ali <> | Date | Fri, 26 Jan 2018 09:32:11 -0500 |
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On 01/26/2018 07:38 AM, Tomi Valkeinen wrote: > On 26/01/18 14:33, Thomas Huth wrote: >> On 25.01.2018 16:47, Farhan Ali wrote: >>> The Opencores framebuffer device uses I/O memory and with >>> CONFIG_HAS_IOMEM disabled will lead to build errors: >>> >>> ERROR: "devm_ioremap_resource" [drivers/video/fbdev/ocfb.ko] undefined! >>> >>> Fix this by adding HAS_IOMEM dependency for FB_OPENCORES. >>> >>> Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com> >>> --- >>> drivers/video/fbdev/Kconfig | 2 +- >>> 1 file changed, 1 insertion(+), 1 deletion(-) >>> >>> diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig >>> index 5e58f5e..8667e5d 100644 >>> --- a/drivers/video/fbdev/Kconfig >>> +++ b/drivers/video/fbdev/Kconfig >>> @@ -976,7 +976,7 @@ config FB_PVR2 >>> >>> config FB_OPENCORES >>> tristate "OpenCores VGA/LCD core 2.0 framebuffer support" >>> - depends on FB && HAS_DMA >>> + depends on FB && HAS_DMA && HAS_IOMEM >>> select FB_CFB_FILLRECT >>> select FB_CFB_COPYAREA >>> select FB_CFB_IMAGEBLIT >> >> I think it would be better if fbdevs in general would depend on >> HAS_IOMEM ... or could there be any frame buffer devices without IOMEM ? > > There are some small ones which are updated with, say, i2c > (ssd1307fb.c). I think those don't need iomem. > > Tomi >
Most of the other framebuffer devices are fenced of by architecture dependency or PCI dependency. So I am hesitant to introduce a blanket dependency for all fbdevs.
Thank you guys for reviewing!
Thanks Farhan
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