On 05/19/2013 08:01 AM, Jean-Francois Moine wrote:
On Sat, 18 May 2013 21:30:09 +0200
Sebastian Hesselbarth<sebastian.hesselba...@gmail.com>  wrote:
So in the end, we will have a DT node for the HW controllers found
in Dove SoCs, a node for TDA998x, and a node for the video card, i.e.
_how_ lcd controllers, external encoders, clocks, maybe audio, ...
are hooked up on that specific board.

Here is my dove-cubox.dts. What is wrong with it?

Oh come on, seriously?

There is _nothing_ wrong with it, it already reflects what I told you
would be required for generic Dove SoC board video.

        video {
                compatible = "marvell,dove-video";
        };

As you may have noticed, the RFC node I sent yesterday. Is in _no_ way
different from a functional point of view. I added a video-memory
property, I renamed the compatible string. And I moved clocks property
to the video card *but* as I said in the RFC description:

"This adds a video card node required for rmk's dove_drm driver. Reg
property matches reserved memory region (currently 16M at top of memory), clocks property should carry extclk0 for now."

It is a node *required for rmk's dove_drm driver* for you to _test_
that very driver.

&lcd0 {
        status = "okay";
        clocks =<&core_clk 3>,<0>,<&lcdclk>,<&si5351 0>;
        marvell,port-type =<11>;          /* HDMIA */
        marvell,external-encoder =<&tda998x>;
};

Again, there is no DT support in *rmk's driver*! I didn't add those
to the RFC node. I provided a DT node to *test* rmk driver. While
you were busy with complaining about things we already answered,
I did test the driver on both Cubox and D2Plug. Now I can start
with looking into rmk's driver and _suggest_ to fix this or that.

/* --- test (not cubox) ---- *
&dcon { status = "okay"; };

&lcd1 {
        status = "okay";
        clocks =<&core_clk 3>,<0>,<&lcdclk>,<0>;
        marvell,port-type =<1>;
        display-timings {
                mode {
                        hactive =<1920>;
                        vactive =<1080>;
                        hfront-porch =<88>;
                        hsync-len =<44>;
                        hback-porch =<148>;
                        vfront-porch =<4>;
                        vsync-len =<5>;
                        vback-porch =<36>;
                        clock =<148500>;
                };
        };

I would be surprised if, lcd1 will ever be capable of driving
1080p60 on a *VGA port*!

Seriously, start _reading_ what we say. I want all those
features I already told you for your driver, in mainline driver
too. All I told you was to prevent you from doing dirty little
Cubox specific hacks that I would have to remove for e.g. D2Plug.

*But* if you ask me if we should take Russell's or your driver
as a basis, the answer is Russell's. Colon.

Sebastian
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