This patch set add new version of edma for i.mx7ulp, the main changes
are as belows:
1. only one dmamux.
2. another clock dma_clk except dmamux clk.
3. 16 independent interrupts instead of only one interrupt for
all channels.
For the first change, need modify fsl-edma-common.c and mcf-edma,
so create the first two patches to prepare without any function
impact.
For the third change, need request single irq for every channel with
the legacy handler. But actually 2 dma channels share one interrupt(16
channel interrupts, but 32 channels.),ch0/ch16,ch1/ch17... For now, just
simply request irq without IRQF_SHARED flag, since 16 channels are enough
on i.mx7ulp whose M4 domain own some peripherals.
Robin Gong (6):
dmaengine: fsl-edma: add dmamux_nr for next version
dmaengine: mcf-edma: update to 'dmamux_nr'
dmaengine: fsl-edma-common: move dmamux register to another single
function
dmaengine: fsl-edma: add i.mx7ulp edma2 version support
dt-bindings: dma: fsl-edma: add new i.mx7ulp-edma
ARM: dts: imx7ulp: add edma device node
Documentation/devicetree/bindings/dma/fsl-edma.txt | 44 ++++++++++--
arch/arm/boot/dts/imx7ulp.dtsi | 28 ++++++++
drivers/dma/fsl-edma-common.c | 34 +++++++--
drivers/dma/fsl-edma-common.h | 4 ++
drivers/dma/fsl-edma.c | 80 ++++++++++++++++++++--
drivers/dma/mcf-edma.c | 1 +
6 files changed, 176 insertions(+), 15 deletions(-)
--
2.7.4
