drm/komeda: Unify mclk/pclk/pipeline->aclk to one MCLK

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Current komeda driver uses three dedicated clks for a specific purpose:
- mclk: main engine clock
- pclk: APB clock
- pipeline->aclk: AXI clock.

But per spec the komeda HW only has three input clks:
- ACLK: used for AXI masters, APB slave and most pipeline processing
- PXCLK for pipeline 0: output pixel clock for pipeline 0
- PXCLK for pipeline 1: output pixel clock for pipeline 1

So one ACLK is enough, no need to split it to three mclk/pclk/axiclk.
drop pclk/pipeline->axiclk. but only keep one mclk in komeda driver.

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>

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This commit is contained in:

james qian wang (Arm Technology China) 2019-06-05 11:35:32 +01:00 • committed by Liviu Dudau

parent 109bd7d5f4

commit 28be315c9c

5 changed files with 7 additions and 42 deletions

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11

drivers/gpu/drm/arm/display/komeda/komeda_crtc.c

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33

drivers/gpu/drm/arm/display/komeda/komeda_dev.c

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2

drivers/gpu/drm/arm/display/komeda/komeda_dev.h

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1

drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c

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2

drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h

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