Clean up the VCHIQ 2711 DMA support #3629
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Manage the split between addresses for the VPU and addresses for the 40-bit DMA controller with a dedicated DMA device pointer that on non- BCM2711 platforms is the same as the main VCHIQ device. This allows the VCHIQ node to stay in the usual place in the DT, and removes the ugly VC_SAFE macros. Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Now that the enhanced BCM2711 DMA controller is located by compatible string and used directly for generating bulk transfer addresses, remove the workaround of moving the vchiq node. Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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@pinchartl @6by9 A version of this should probably go in the next patch set. |
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Looks nicer. |
popcornmix
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kernel: vc4: Set driver_name for card See: raspberrypi/linux#3656 kernel: configs: Add SND_SOC_MAX98357A=m See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=275919 kernel: Add Micro Crystal RV-1805 to i2c-rtc overlays See: raspberrypi/linux#3651 kernel: media: bcm2835-isp: fix bytes per line calculations for some image formats See: raspberrypi/linux#3645 kernel: media: bcm2835-unicam: change minimum number of vb2_queue buffers to 1 See: raspberrypi/linux#3638 kernel: media: i2c: imx477: Return correct result on sensor id verification See: raspberrypi/linux#3630 kernel: Clean up the VCHIQ 2711 DMA support See: raspberrypi/linux#3629 kernel: overlays: i2c-rtc-gpio: Fix trickle-resistor-ohms param See: raspberrypi/linux#3642 kernel: Enable hwmon for thermal zones See: raspberrypi/linux#3307
popcornmix
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kernel: vc4: Set driver_name for card See: raspberrypi/linux#3656 kernel: configs: Add SND_SOC_MAX98357A=m See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=275919 kernel: Add Micro Crystal RV-1805 to i2c-rtc overlays See: raspberrypi/linux#3651 kernel: media: bcm2835-isp: fix bytes per line calculations for some image formats See: raspberrypi/linux#3645 kernel: media: bcm2835-unicam: change minimum number of vb2_queue buffers to 1 See: raspberrypi/linux#3638 kernel: media: i2c: imx477: Return correct result on sensor id verification See: raspberrypi/linux#3630 kernel: Clean up the VCHIQ 2711 DMA support See: raspberrypi/linux#3629 kernel: overlays: i2c-rtc-gpio: Fix trickle-resistor-ohms param See: raspberrypi/linux#3642 kernel: Enable hwmon for thermal zones See: raspberrypi/linux#3307
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Following a suggestion from @vianpl, these commits tidy up the way the 2711-specific VCHIQ code obtains DMA addresses, which removes the need to move the DT node and generally looks better.