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linux (RPi4): disable legacy framebuffer and dmaengine drivers

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The legacy drivers are not used and this frees up one of the
scarce DMA channels.

Keep the legacy drivers enabled on RPi and RPi2 for now, they
don't suffer from the DMA channel shortage and it may help downstream
projects which still do RPi builds using the legacy graphics stack.

Signed-off-by: Matthias Reichl <hias@horus.com>
This commit is contained in:
Matthias Reichl 2020-10-12 19:35:04 +02:00
parent 109def1f6b
commit 1c4c44f34f
1 changed files with 2 additions and 2 deletions
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4
projects/RPi/devices/RPi4/linux/linux.arm.conf
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@ -4081,7 +4081,7 @@ CONFIG_FB_DEFERRED_IO=y
#
# Frame buffer hardware drivers
#
CONFIG_FB_BCM2708=y
# CONFIG_FB_BCM2708 is not set
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_ARMCLCD is not set
@ -5102,7 +5102,7 @@ CONFIG_DMA_BCM2835=y
# CONFIG_NBPFAXI_DMA is not set
# CONFIG_PL330_DMA is not set
# CONFIG_PLX_DMA is not set
CONFIG_DMA_BCM2708=y
# CONFIG_DMA_BCM2708 is not set
# CONFIG_XILINX_ZYNQMP_DPDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set