[Freedreno] help: mipi dsi drm driver on 8084

[vinay simha]

fyi,

dmesg log for dsi
http://pastebin.com/nD68gNNM

Regards,
vinay simha

On Wed, Apr 15, 2015 at 8:04 PM, vinay simha <
vinaysimha at inforcecomputing.com> wrote:

> Hai,
>
> i tried both mipi_dsi_generic_write and mipi_dsi_dcs_write_buffer. It
> doesn't returns error but there is no change in the display panel. if we
> write 0x11, 0x29 and 0x23 to panel , all pixels should be on in dsi panel.
> but nothing happens.
>
> fyi, attached dmesg log
>
> I will check on the encoder.
>
> Regards,
> vinay simha
>
> On Wed, Apr 15, 2015 at 7:50 PM, <hali at codeaurora.org> wrote:
>
>> 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
>>
>>
>
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