On Fri, Dec 04, 2015 at 11:24:21AM +0800, Wang Hongcheng wrote:
> has_no_cap_mask means this device has no preset cap mask.
> mcbuf_sz means bytes to allocate for MC buffer.
MC ?
> flags is for irq sharing, default is non-shared, in AMD
> Carrizo, pl330 shares IRQ with its corresponding UART device.
>
> Signed-off-by: Wang Hongcheng <annie.wang@xxxxxxx>
> ---
> drivers/acpi/acpi_apd.c | 13 ++++++++++++-
> drivers/dma/pl330.c | 19 +++++++++++++------
> include/linux/amba/pl330.h | 3 +++
> 3 files changed, 28 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
> index eb3316a..7a582f5 100644
> --- a/drivers/acpi/acpi_apd.c
> +++ b/drivers/acpi/acpi_apd.c
> @@ -21,6 +21,7 @@
> #include <linux/amba/bus.h>
> #include <linux/kernel.h>
> #include <linux/sizes.h>
> +#include <linux/amba/pl330.h>
> #include <linux/interrupt.h>
>
> #include "internal.h"
> @@ -35,6 +36,16 @@ struct apd_private_data;
> #define ACPI_APD_SYSFS BIT(0)
> #define ACPI_APD_PM BIT(1)
>
> +static u8 peri_id[2] = { 0, 1 };
> +
> +static struct dma_pl330_platdata amd_pl330 = {
> + .nr_valid_peri = 2,
> + .peri_id = peri_id,
> + .has_no_cap_mask = true,
> + .mcbuf_sz = 0,
> + .flags = IRQF_SHARED,
> +};
Why not DT or ACPI for this?
--
~Vinod
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