lkml.org 
[lkml]   [2015]   [Dec]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 4/9] dmaengine: pl330: add new items for pl330 private data
    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@amd.com>
    > ---
    > 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


    \
     
     \ /
      Last update: 2015-12-10 05:21    [W:4.172 / U:0.124 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site