#linux-sunxi on 2017-10-15 — irc logs at freenode.irclog.whitequark.org

2015-02-18 19:37 Turl changed the topic of #linux-sunxi to: Allwinner/sunxi /development discussion - did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait! - https://github.com/linux-sunxi/ - Logs at http://irclog.whitequark.org/linux-sunxi

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02:35 <wens> plaes: yes

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03:16 <MoeIcenowy> wens: is sun4i-drm component binding process already bfs or still dfs?

03:17 <wens> bfs

03:17 <MoeIcenowy> when is it changed?

03:18 <wens> recently

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03:31 <MoeIcenowy> maybe I should re-test DE2 support on it

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03:32 <MoeIcenowy> oh found the commit in git log -- thanks

03:33 <MoeIcenowy> P.S. TL Lim sent me a copy of H6 user manual, but still covered by "confidential"

03:34 <MoeIcenowy> the TCON_TV adds 10-bit support (however I cannot test it out, as I cannot afford such a screen ;-)

03:36 <MoeIcenowy> but we maybe should care display later... the CCU and the memory map totally changed

03:37 <wens> again :~~~

03:37 <wens> memory map is ok to deal with

03:40 <MoeIcenowy> interesting... A10/A20 also have engine-tcon mux like DE2?

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06:39 <Net147> wens: I added dithering support for RGB565/RGB666 LCD panels - https://github.com/net147/linux/commit/7f7192979aaa5a284f20e1d77bb98d1528cf226f

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08:49 <shadeslayer> MoeIcenowy: so video decode isn't available with DRM at all then?

08:50 <shadeslayer> Would it even be possible to add it ?

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17:10 <jbk1> Hi, anyone here familiar with the mmc device driver?

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17:21 <pmpp> jbk1: is that your only question or you may go in some details ?

17:23 <jbk1> I'm trying to understand the structure of the driver. There are three files in drivers/mmc/host with names sunxi-mmc-sun50iw1p1-[0,1,2].c which I am confused about. They seem very similar and I'm trying to understand the purpose of each.

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17:23 <pmpp> mmc0 is sdcard, mmc1 is sdio wifi mmc2 is emmc

17:24 <pmpp> but i am not an expert for anything more, but there are some around

17:25 <jernej> jbk1: that sounds like BSP kernel

17:25 <jernej> I guess not many people try to understand BSP kernel

17:26 <jbk1> :)

17:26 <jbk1> It is a scary place to go, that's for sure

17:28 <jbk1> I'm working on the support for 64G sandisk mmc modules on the pinebook. I think the next step requires me to implement sampling tuning.

17:30 <jbk1> I can see tuning support in uboot, but not in the kernel version of the driver. I was hoping to migrate the uboot impl over, but the drivers seem quite different, so I'm trying to make sense of what's there in the kernel driver, with the hope of implementing a minimal tuning function just for this use case.

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18:50 <jbk1> ok, so the sunxi-mmc-sun50iw1p1-[0,1,2].c files give different versions of methods that are used depending on the compatible entries in the dts.

18:50 <jbk1> sdmmc@01c0f000 {

18:50 <jbk1> compatible = "allwinner,sun50i-sdmmc2";

18:50 <jbk1> compatible = "allwinner,sun50i-sdmmc0";

18:50 <jbk1> sdmmc@01C11000 {

18:50 <jbk1> sdmmc@1C10000 {

18:50 <jbk1> compatible = "allwinner,sun50i-sdmmc1";

18:50 <jbk1> and

18:50 <jbk1> if(of_device_is_compatible(np, "allwinner,sun50i-sdmmc2")){

18:50 <jbk1> host->sunxi_mmc_clk_set_rate = sunxi_mmc_clk_set_rate_for_sdmmc2;

18:50 <jbk1> //host->dma_tl = (0x3<<28)|(15<<16)|240;

18:50 <jbk1> host->dma_tl = SUNXI_DMA_TL_SDMMC2;

18:50 <jbk1> //host->idma_des_size_bits = 12;

18:50 <jbk1> host->idma_des_size_bits = SUNXI_DES_SIZE_SDMMC2;

18:50 <KotCzarny> use pastebin.com for pastes.

18:50 <jbk1> my bad

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21:42 <Giulio> Hi all, where can we discuss about r6p2 mali with mainline? Is there a correct mailing list or google groups? Thanks in advance

21:44 <willmore> Giulio, don't know if it's the perfect space, but there is some discussion at the arbmian forums about it.

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21:50 <Giulio> Will, I don't find anything specific there. I will wait for an answer from Maxime Ripard who did the blog on Free Electrons.

21:51 <willmore> https://forum.armbian.com/index.php?/topic/5265-mali-support-announced-for-mainline-allwinner-socs/

21:51 <willmore> How more specific did you expect?

21:52 <Giulio> Sorry but I'm new to this. So if I ask there, with strace of EGL 0x3003 error, it's ok?

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