On Tue, Jan 22, 2019 at 05:21:08PM +0530, Jagan Teki wrote:

On Tue, Jan 22, 2019 at 4:41 PM Maxime Ripard [off-list ref] wrote:

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On Fri, Jan 18, 2019 at 09:14:19PM +0530, Jagan Teki wrote:

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On Thu, Jan 17, 2019 at 10:02 AM Jagan Teki [off-list ref] wrote:

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On Thu, Jan 17, 2019 at 12:48 AM Maxime Ripard
[off-list ref] wrote:

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On Sun, Jan 13, 2019 at 01:07:41AM +0530, Jagan Teki wrote:

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Again, I cannot help you without the datasheet for the panels you're
trying to submit.

The panel bound with Sitronix ST7701 IC
http://www.startek-lcd.com/res/starteklcd/pdres/201705/20170512144242904.pdf

It's the controller, not the panel

As I said before, the datasheet of that panel doesn't have any
information except electrical characteristics and used IC which is
ST7701.

I have one more panel, which is from Bananapi, S070WV20-CT16 ICN621
please find the attachment for the same.

Here is some more details of the same.

https://github.com/yesnoandor/x300/blob/master/kernel/arch/arm/boot/dts/erobbing/x300/x300.dtsi#L81
https://github.com/wxzed/Raspberry_5MIPI_Display/blob/master/I2C_Slave/USER/main.c#L15

https://github.com/eliot-shao/qcom/blob/master/icn6211_cxn0102/kernel/drivers/video/msm/mdss/mdss_i2c_interface.c#L152
matches timings for
https://github.com/eliot-shao/qcom/blob/master/icn6211_cxn0102/kernel/arch/arm/boot/dts/qcom/dsi-mipi-2-rgb_1280p_video.dtsi#L20

https://github.com/zestroly/micromat/blob/master/test/raspberry/ICN6211.cpp#L169

Where did you get the timings from then?

You mean drm_mode timings, the same panel with RGB available in
panel-simple[1], and dsi driver in Mailing list[2] and actual DSI
sequence commands from BSP[3]

[1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/panel/panel-simple.c?id=7ad8b41cd8f5c2842646d01cdd576663caee04a7
[2] https://patchwork.kernel.org/patch/10680331/
[3] https://github.com/BPI-SINOVOIP/BPI-M64-bsp/blob/master/linux-sunxi/drivers/video/sunxi/disp2/disp/lcd/S070WV20_MIPI_RGB.c

So you had no reliable source for the timings then? How do you know if
all your patches that are timing related are right then?

I don't understand your point, or may be I confused with many links
that I attached in previous mail.

1. Patch for same panel timings are already in Mainline that was
tested on one of the board. [1]
2. Driver from AW, released bsp from BPI-M64-bsp [3]

Do you think the above two points are not valid sources?

fyi, the panel datasheet attached in above mail has timing information.

Do you have a page number?

Page 4
5.2 Interface Timings

Which datasheet are we talking about here?

The only one I've seen is the Sitronix IC's and the page 4 is the summary.

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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