Hi Xiang,
Its returning 0 modes... :(
Regards, C.Palminha
# modetest -M drm-arcpgu -c Connectors: id encoder status type size (mm) modes encoders 21 0 disconnected HDMI-A 0x0 0 20 props: 1 EDID: flags: immutable blob blobs:
value: 2 DPMS: flags: enum enums: On=0 Standby=1 Suspend=2 Off=3 value: 0
#
On 19-01-2016 03:38, Xinliang Liu wrote:
On 18 January 2016 at 22:45, Carlos Palminha CARLOS.PALMINHA@synopsys.com wrote:
I'm also getting a message from DRM saying can't find any crtc or sizes...i'm really missing something here. :(
-- log -- [drm] Initialized drm 1.1.0 20060810 drm-arcpgu e0017000.pgu: No connectors reported connected with modes [drm] Cannot find any crtc or sizes - going 1024x768 Console: switching to colour frame buffer device 128x48 drm-arcpgu e0017000.pgu: fb0: frame buffer device [drm] Initialized drm-arcpgu 1.0.0 20151127 on minor 0 -- log ---
Any help?
Regards, C.Palminha
On 18-01-2016 14:32, Carlos Palminha wrote:
Hi Xinliang,
My get_modes seems to be implemented as the rcar driver... Probably still missing some init step?
Regards, C.Palminha
static int arcpgu_drm_connector_get_modes(struct drm_connector
*connector)
{ struct drm_encoder_slave *slave; const struct drm_encoder_slave_funcs *sfuncs; struct arcpgu_drm_connector * con = container_of(connector, struct arcpgu_drm_connector, connector);
slave = con->encoder_slave; if(slave == NULL) { dev_err(connector->dev->dev, "connector_get_modes: cannot find slave encoder for connector\n"); return 0; }
sfuncs = slave->slave_funcs; if(sfuncs->get_modes == NULL){ return 0; }
return sfuncs->
get_modes(&slave->base,connector);
}
so, this will call adv7511 driver's get_modes call back. I wonder if the system boot up, it can get modes or not. You can test it with the modetest. i.e. $ modetest -M DRM_DRIVER_NAME -c
On 31-12-2015 02:19, Xinliang Liu wrote:
On 31 December 2015 at 02:46, Carlos Palminha <CARLOS.PALMINHA@synopsys.com mailto:CARLOS.PALMINHA@synopsys.com>
wrote:
Hi guys, I'm writing a DRM driver for a framebuffer embedded hardware that uses an i2c encoder (adv7511), following the basic steps suggested by Laurent in "anatomy of an embedded KMS driver": https://www.youtube.com/watch?v=Ja8fM7rTae4 After initiliazing all kms, crtc, encoder, i2c, connector functions and structures i'm calling drm_fbdev_cma_init to create a fbdev. When booting i'm getting an error message saying "No connectors reported connected with modes", but the driver init is ok and i can find the /dev/dri/* and /dev/fb0 devices. Any clue what i might be missing during the driver load?I think you should check on the 'get_modes' call back of adv7511 driver. (Or, if possible show us the code.)
Best, -xinliang
Thanks... Regards, C.Palminha --- boot log snippet --- [drm] Initialized drm 1.1.0 20060810 drm-arcpgu e0017000.pgu: No connectors reported connected with modes [drm] Cannot find any crtc or sizes - going 1024x768 Console: switching to colour frame buffer device 128x48 drm-arcpgu e0017000.pgu: fb0: frame buffer device [drm] Initialized drm-arcpgu 1.0.0 20151127 on minor 0 --- boot log snippet --- -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@vger.kernel.org <mailto:majordomo@vger.kernel.org> More majordomo info at http://vger.kernel.org/majordomo-info.html