From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: viresh kumar <viresh.kumar@linaro.org>
Cc: Vinod Koul <vinod.koul@intel.com>,
spear-devel@list.st.com, linux-kernel@vger.kernel.org,
Hein Tibosch <hein_tibosch@yahoo.es>
Subject: Re: [PATCH 2/7] dw_dmac: fill optional encoded parameters in register structure
Date: Thu, 20 Sep 2012 12:30:05 +0300 [thread overview]
Message-ID: <1348133405.13371.30.camel@smile> (raw)
In-Reply-To: <CAOh2x=k3hjXtuAd23LYLWvG59HPgFS8W2J+5-2Bre+wFufgcng@mail.gmail.com>
On Tue, 2012-09-18 at 13:29 +0530, viresh kumar wrote:
> On Tue, Sep 18, 2012 at 12:25 PM, Andy Shevchenko
> <andriy.shevchenko@linux.intel.com> wrote:
> >> > +#define dma_raw_readl(addr, name) \
> >> > + readl((addr) + offsetof(struct dw_dma_regs, name))
> >> > +
> >> > +#define dma_raw_writel(addr, name, val) \
> >> > + writel((val), (addr) + offsetof(struct dw_dma_regs, name))
> >> > +
> >>
> >> But why don't you use earlier defined readl/writel macros:
> >> dma_readl and dma_writel?
>
> > If you look at further patches, namely 3rd, the access to the register
> > is needed before we allocate memory for the dw_dma structure.
>
> Ok. If i am not wrong, such calls are only required once for below line:
Actually twice...
> dw_params = dma_raw_readl(regs, DW_PARAMS
...here and for channel parameters.
> dma_raw_writel() is not used and shouldn't be required in future too.
> So remove it.
Ok
> dma_raw_readl() is required but the name is a bit confusing... this
> raw type is different
> from raw_readl...
>
> Can we name it dma_read_byaddr()?
> to make it more explicit.
Ok.
--
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy
next prev parent reply other threads:[~2012-09-20 9:30 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-17 7:39 [PATCH 0/7] dw_dmac: introduce autoconfiguration Andy Shevchenko
2012-09-17 7:39 ` [PATCH 1/7] dw_dmac: mark dwc_dump_chan_regs as inline Andy Shevchenko
2012-09-18 6:35 ` viresh kumar
2012-09-17 7:39 ` [PATCH 2/7] dw_dmac: fill optional encoded parameters in register structure Andy Shevchenko
2012-09-18 6:39 ` viresh kumar
2012-09-18 6:55 ` Andy Shevchenko
2012-09-18 7:59 ` viresh kumar
2012-09-20 9:30 ` Andy Shevchenko [this message]
2012-09-20 9:32 ` viresh kumar
2012-09-20 9:51 ` Andy Shevchenko
2012-09-17 7:39 ` [PATCH 3/7] dw_dmac: get number of channels from hardware if possible Andy Shevchenko
2012-09-18 6:50 ` viresh kumar
2012-09-20 9:35 ` Andy Shevchenko
2012-09-20 9:40 ` viresh kumar
2012-09-21 6:04 ` viresh kumar
2012-09-17 7:39 ` [PATCH 4/7] dw_dmac: autoconfigure block_size or use platform data Andy Shevchenko
2012-09-18 6:57 ` viresh kumar
2012-09-20 9:38 ` Andy Shevchenko
2012-09-17 7:39 ` [PATCH 5/7] dw_dmac: autoconfigure data_width or get it via " Andy Shevchenko
2012-09-18 7:11 ` viresh kumar
2012-09-20 9:42 ` Andy Shevchenko
2012-09-20 9:46 ` viresh kumar
2012-09-20 9:53 ` Andy Shevchenko
2012-09-17 7:39 ` [PATCH 6/7] dw_dmac: check if controller supports LLP Andy Shevchenko
2012-09-18 7:13 ` viresh kumar
2012-09-20 9:43 ` Andy Shevchenko
2012-09-17 7:39 ` [PATCH 7/7] dw_dmac: introduce software emulation of LLP transfers Andy Shevchenko
2012-09-18 7:17 ` viresh kumar
2012-09-20 9:46 ` Andy Shevchenko
2012-09-17 16:50 ` [PATCH 0/7] dw_dmac: introduce autoconfiguration Hein Tibosch
2012-09-18 6:11 ` Hein Tibosch
2012-09-18 7:18 ` viresh kumar
2012-09-20 9:48 ` Andy Shevchenko
2012-09-21 12:05 ` [PATCHv2 0/6] " Andy Shevchenko
2012-09-21 12:05 ` [PATCHv2 1/6] dw_dmac: mark dwc_dump_chan_regs as inline Andy Shevchenko
2012-09-21 12:05 ` [PATCHv2 2/6] dw_dmac: fill optional encoded parameters in register structure Andy Shevchenko
2012-09-21 13:55 ` viresh kumar
2012-09-21 12:05 ` [PATCHv2 3/6] dw_dmac: get number of channels from hardware if possible Andy Shevchenko
2012-09-21 13:56 ` viresh kumar
2012-09-21 12:05 ` [PATCHv2 4/6] dw_dmac: autoconfigure block_size or use platform data Andy Shevchenko
2012-09-21 14:00 ` viresh kumar
2012-09-21 15:09 ` Andy Shevchenko
2012-09-21 15:30 ` Viresh Kumar
2012-09-21 12:05 ` [PATCHv2 5/6] dw_dmac: autoconfigure data_width or get it via " Andy Shevchenko
2012-09-21 14:02 ` viresh kumar
2012-09-25 11:39 ` [PATCHv3] " Andy Shevchenko
2012-09-26 3:29 ` viresh kumar
2012-09-27 10:06 ` Vinod Koul
2012-09-27 10:33 ` Vinod Koul
2012-09-27 13:10 ` Andy Shevchenko
2012-10-01 9:04 ` Andy Shevchenko
2012-10-01 9:45 ` Vinod Koul
2012-10-01 10:07 ` Andy Shevchenko
2012-09-27 14:00 ` Andy Shevchenko
2012-09-27 14:27 ` Vinod Koul
2012-09-21 12:05 ` [PATCHv2 6/6] dw_dmac: introduce software emulation of LLP transfers Andy Shevchenko
2012-09-21 14:03 ` viresh kumar
2012-09-27 10:05 ` [PATCHv2 0/6] dw_dmac: introduce autoconfiguration Vinod Koul
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