lkml.org 
[lkml]   [2019]   [Aug]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v11 09/12] soc: mediatek: cmdq: define the instruction struct
From
Date
On Sun, 2019-08-11 at 00:12 +0800, houlong wei wrote:
> Hi Bibby, I have inline comment in function cmdq_pkt_write_mask().
>
> On Mon, 2019-07-29 at 15:01 +0800, Bibby Hsieh wrote:
> > Define an instruction structure for gce driver to append command.
> > This structure can make the client's code more readability.
> >
> > Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
> > Reviewed-by: CK Hu <ck.hu@mediatek.com>
> > ---
> > drivers/soc/mediatek/mtk-cmdq-helper.c | 103 +++++++++++++++--------
> > include/linux/mailbox/mtk-cmdq-mailbox.h | 2 +
> > 2 files changed, 72 insertions(+), 33 deletions(-)
> >
> > diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
> > index 7aa0517ff2f3..0886c4967ca4 100644
> > --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> > +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> > @@ -9,12 +9,24 @@
> > #include <linux/mailbox_controller.h>
> > #include <linux/soc/mediatek/mtk-cmdq.h>
[...]
> >
> > int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys,
> > u16 offset, u32 value, u32 mask)
> > {
> > + struct cmdq_instruction *inst;
> > u32 offset_mask = offset;
> > - int err = 0;
> >
> > if (mask != 0xffffffff) {
> > - err = cmdq_pkt_append_command(pkt, CMDQ_CODE_MASK, 0, ~mask);
> > + inst = cmdq_pkt_append_command(pkt);
> > + if (!inst)
> > + return -ENOMEM;
> > +
> > + inst->op = CMDQ_CODE_MASK;
> > + inst->mask = ~mask;

> > offset_mask |= CMDQ_WRITE_ENABLE_MASK;
> > }
> > - err |= cmdq_pkt_write(pkt, value, subsys, offset_mask);
> >
> > - return err;
> > + return cmdq_pkt_write(pkt, subsys, offset_mask, value);

We need add a type conversion here, (u8)offset_mask, for your new
function type. Er... it's better to remove local variable 'offset_mask'
and replace it with 'offset'.

> > }
[...]


\
 
 \ /
  Last update: 2019-08-10 18:39    [W:0.063 / U:8.188 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site