On Wednesday 05 April 2017 10:47 PM, Alexandre Bailon wrote:
> The CPPI 4.1 DMA is sharing its clock with the USB OTG,
> and most of the time, the clock will be enabled by USB.
> But during the init of the DMA, USB is not enabled (waiting for DMA),
> and then we must enable the clock before doing anything.
> Add the clock for the CPPI 4.1 DMA engine.
>
> Signed-off-by: Alexandre Bailon <abailon@xxxxxxxxxxxx>
> ---
> arch/arm/mach-davinci/da830.c | 6 ++++++
> arch/arm/mach-davinci/da850.c | 6 ++++++
> 2 files changed, 12 insertions(+)
>
> diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
> index 073c458..bd88470 100644
> --- a/arch/arm/mach-davinci/da830.c
> +++ b/arch/arm/mach-davinci/da830.c
> @@ -304,6 +304,11 @@ static struct clk usb20_clk = {
> .gpsc = 1,
> };
>
> +static struct clk cppi41_clk = {
> + .name = "cppi41",
> + .parent = &usb20_clk,
> +};
> +
> static struct clk aemif_clk = {
> .name = "aemif",
> .parent = &pll0_sysclk3,
> @@ -413,6 +418,7 @@ static struct clk_lookup da830_clks[] = {
> CLK("davinci-mcasp.1", NULL, &mcasp1_clk),
> CLK("davinci-mcasp.2", NULL, &mcasp2_clk),
> CLK("musb-da8xx", "usb20", &usb20_clk),
> + CLK("cppi41-dmaengine", NULL, &cppi41_clk),
I dont see this device name being used in current linux-next. Is this
name accepted ?
The patch otherwise looks okay.
Thanks,
Sekhar
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