[Freedreno] help: mipi dsi drm driver on 8084

[hali at codeaurora.org]

Hi Vinay,
> On Wed, Apr 15, 2015 at 9:22 AM, vinay simha
> <vinaysimha at inforcecomputing.com> wrote:
>> Hai,
>>
>> added the panel in dts, now the new panel-truly is getting probed.
>> updated
>> my branch
>> https://github.com/vinaysimha/kernel-msm-ifc6410/commits/ifc6540-drm-4.4.4-dsi
>>
>> panel backlight is up, hdmi display is coming. No data in the dsi.
>> i had not used this function dsi_host_init_panel_gpios, since gpiolib.c
>> is
>> different from 4.x kernel to 3.10.40 kernel. i handled the gpios in
>> panel-truly.c
>>
>> Does these reg address are correct ?
>>
>> mdss_dsi0: qcom,mdss_dsi at fd922800
>>               reg = <0xfd922800 0x200>,
>> <0xfd922b00 0x20c>,
>> <0xfd922d80 0x20>,
>> <0xfd828000 0x108>;
>> reg-names = "dsi_ctrl", "dsi_phy", "dsi_phy_regulator",
>> "mmss_misc_phys";
>>
>> }
>>
>> When i tried the modetest,
>> hdmi encoders is set properly to 32 , crtc 20
>> But for the dsi encoder set to 1 is not correct i guess. It should be
>> 29.
>
> fwiw, I tihnk "1" is number of modes, and there are no encoders..
>
> btw, that modetest output made me realize that modetest needed to be
> updated with new encoder/connector names.. I just pushed a fix so it
> won't show "invalid" for DSI connector/encoder types:
>
> http://cgit.freedesktop.org/mesa/drm/commit/?id=0d78b37b1cac304ce5e84d1207f0a43abd29c000
>
> BR,
> -R
>
>
>> Any suggestions?
>>
>> -----------------------------------
>> Encoders:
>> id crtc type possible crtcs possible clones
>> 29 18 (invalid) 0x0000000f 0x00000000
>> 30 0 (invalid) 0x0000000f 0x00000000
>> 32 20 TMDS 0x0000000f 0x00000000
>>
>> ************************************************
>> Connectors:
>> id encoder status type size (mm) modes encoders
>> 31 29 connected (invalid) 0x0 1
>> ************************************************
>>   modes:
>> name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
>>   480x864 60 480 526 530 574 864 879 880 896 flags: ; type:
>>   props:
>> 1 EDID:
>> flags: immutable blob
>> blobs:
>>
>> value:
>> 2 DPMS:
>> flags: enum
>> enums: On=0 Standby=1 Suspend=2 Off=3
>> value: 0
>> ***********************************************
>> 33 32 connected HDMI-A 480x270 28 32
>> ***********************************************
>>   modes:
>> name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
>>   1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 flags: phsync,
>> pvsync; type: preferred, driver
>>   1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 flags: phsync,
>> pvsync; type: driver
>>
>> CRTCs:
>> id fb pos size
>> 18 60 (0,0) (480x864)
>>   480x864 60 480 526 530 574 864 879 880 896 flags: ; type:
>>   props:
>> 20 60 (0,0) (1920x1080)
>>   1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 flags: phsync,
>> pvsync; type: preferred, driver
>>   props:
>> -----------------------------------------------------
>>
>> Regards,
>> vinay simha
>>

Is there error message during power on? Are the commands sent to the panel
successfully?
Also, it is worth to check why modetest returns no encoder.

Thanks,
Hai