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| author | Nicolas Saenz Julienne <[email protected]> | 2020-07-30 18:26:19 +0000 |
|---|---|---|
| committer | Stephen Boyd <[email protected]> | 2020-08-03 21:26:20 +0000 |
| commit | f34e4651ce66a754f41203284acf09b28b9dd955 (patch) | |
| tree | 441b9e580c048be5e31c40a5ed365a029916effe /drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c | |
| parent | dt-bindings: arm: bcm: Add a select to the RPI Firmware binding (diff) | |
| download | kernel-f34e4651ce66a754f41203284acf09b28b9dd955.tar.gz kernel-f34e4651ce66a754f41203284acf09b28b9dd955.zip | |
clk: bcm2835: Do not use prediv with bcm2711's PLLs
Contrary to previous SoCs, bcm2711 doesn't have a prescaler in the PLL
feedback loop. Bypass it by zeroing fb_prediv_mask when running on
bcm2711.
Note that, since the prediv configuration bits were re-purposed, this
was triggering miscalculations on all clocks hanging from the VPU clock,
notably the aux UART, making its output unintelligible.
Fixes: 42de9ad400af ("clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support")
Reported-by: Nathan Chancellor <[email protected]>
Signed-off-by: Nicolas Saenz Julienne <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Tested-by: Nathan Chancellor <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c')
0 files changed, 0 insertions, 0 deletions