From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carlos Palminha Date: Mon, 18 Jan 2016 14:32:47 +0000 Subject: Re: Whats missing in my new FB DRM driver... "No connectors reported connected with modes"? Message-Id: <569CF78F.7050303@synopsys.com> List-Id: References: <5684268E.2000607@synopsys.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit To: Xinliang Liu Cc: linux-fbdev@vger.kernel.org, tomi.valkeinen@ti.com, laurent.pinchart@ideasonboard.com, dri-devel 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); } On 31-12-2015 02:19, Xinliang Liu wrote: > > > On 31 December 2015 at 02:46, Carlos Palminha > > 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 > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carlos Palminha Subject: Re: Whats missing in my new FB DRM driver... "No connectors reported connected with modes"? Date: Mon, 18 Jan 2016 14:32:47 +0000 Message-ID: <569CF78F.7050303@synopsys.com> References: <5684268E.2000607@synopsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from smtprelay.synopsys.com (us01smtprelay-2.synopsys.com [198.182.47.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id D64F86E5A0 for ; Mon, 18 Jan 2016 06:40:16 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Xinliang Liu Cc: linux-fbdev@vger.kernel.org, tomi.valkeinen@ti.com, laurent.pinchart@ideasonboard.com, dri-devel List-Id: dri-devel@lists.freedesktop.org SGkgWGlubGlhbmcsCgpNeSBnZXRfbW9kZXMgc2VlbXMgdG8gYmUgaW1wbGVtZW50ZWQgYXMgdGhl IHJjYXIgZHJpdmVyLi4uClByb2JhYmx5IHN0aWxsIG1pc3Npbmcgc29tZSBpbml0IHN0ZXA/CgpS ZWdhcmRzLApDLlBhbG1pbmhhCgoKc3RhdGljIGludCBhcmNwZ3VfZHJtX2Nvbm5lY3Rvcl9nZXRf bW9kZXMoc3RydWN0IGRybV9jb25uZWN0b3IgKmNvbm5lY3RvcikKewpzdHJ1Y3QgZHJtX2VuY29k ZXJfc2xhdmUgKnNsYXZlOwpjb25zdCBzdHJ1Y3QgZHJtX2VuY29kZXJfc2xhdmVfZnVuY3MgKnNm dW5jczsKc3RydWN0IGFyY3BndV9kcm1fY29ubmVjdG9yICogY29uID0KY29udGFpbmVyX29mKGNv bm5lY3Rvciwgc3RydWN0IGFyY3BndV9kcm1fY29ubmVjdG9yLCBjb25uZWN0b3IpOwoKc2xhdmUg PSBjb24tPmVuY29kZXJfc2xhdmU7CmlmKHNsYXZlID09IE5VTEwpIHsKZGV2X2Vycihjb25uZWN0 b3ItPmRldi0+ZGV2LAoiY29ubmVjdG9yX2dldF9tb2RlczogY2Fubm90IGZpbmQgc2xhdmUgZW5j b2RlciBmb3IgY29ubmVjdG9yXG4iKTsKcmV0dXJuIDA7Cn0KCnNmdW5jcyA9IHNsYXZlLT5zbGF2 ZV9mdW5jczsKaWYoc2Z1bmNzLT5nZXRfbW9kZXMgPT0gTlVMTCl7CnJldHVybiAwOwp9CgpyZXR1 cm4gc2Z1bmNzLT5nZXRfbW9kZXMoJnNsYXZlLT5iYXNlLGNvbm5lY3Rvcik7Cn0KCk9uIDMxLTEy LTIwMTUgMDI6MTksIFhpbmxpYW5nIExpdSB3cm90ZToKPgo+Cj4gT24gMzEgRGVjZW1iZXIgMjAx NSBhdCAwMjo0NiwgQ2FybG9zIFBhbG1pbmhhCj4gPENBUkxPUy5QQUxNSU5IQUBzeW5vcHN5cy5j b20gPG1haWx0bzpDQVJMT1MuUEFMTUlOSEFAc3lub3BzeXMuY29tPj4gd3JvdGU6Cj4KPiAgICAg SGkgZ3V5cywKPgo+ICAgICBJJ20gd3JpdGluZyBhIERSTSBkcml2ZXIgZm9yIGEgZnJhbWVidWZm ZXIgZW1iZWRkZWQgaGFyZHdhcmUgdGhhdAo+ICAgICB1c2VzIGFuIGkyYyBlbmNvZGVyIChhZHY3 NTExKSwgZm9sbG93aW5nIHRoZSBiYXNpYyBzdGVwcyBzdWdnZXN0ZWQKPiAgICAgYnkgTGF1cmVu dCBpbiAiYW5hdG9teSBvZiBhbiBlbWJlZGRlZCBLTVMgZHJpdmVyIjoKPiAgICAgaHR0cHM6Ly93 d3cueW91dHViZS5jb20vd2F0Y2g/dj1KYThmTTdyVGFlNAo+Cj4gICAgIEFmdGVyIGluaXRpbGlh emluZyBhbGwga21zLCBjcnRjLCBlbmNvZGVyLCBpMmMsIGNvbm5lY3RvciBmdW5jdGlvbnMKPiAg ICAgYW5kIHN0cnVjdHVyZXMgaSdtIGNhbGxpbmcgZHJtX2ZiZGV2X2NtYV9pbml0IHRvIGNyZWF0 ZSBhIGZiZGV2Lgo+Cj4gICAgIFdoZW4gYm9vdGluZyBpJ20gZ2V0dGluZyBhbiBlcnJvciBtZXNz YWdlIHNheWluZyAiTm8gY29ubmVjdG9ycwo+ICAgICByZXBvcnRlZCBjb25uZWN0ZWQgd2l0aCBt b2RlcyIsIGJ1dCB0aGUgZHJpdmVyIGluaXQgaXMgb2sgYW5kIGkgY2FuCj4gICAgIGZpbmQgdGhl IC9kZXYvZHJpLyogYW5kIC9kZXYvZmIwIGRldmljZXMuCj4KPiAgICAgQW55IGNsdWUgd2hhdCBp IG1pZ2h0IGJlIG1pc3NpbmcgZHVyaW5nIHRoZSBkcml2ZXIgbG9hZD8KPgo+Cj4g4oCLSSB0aGlu ayB5b3Ugc2hvdWxkIGNoZWNrIG9uIHRoZSAnZ2V0X21vZGVzJ+KAiyBjYWxsIGJhY2sgb2YgYWR2 NzUxMQo+IGRyaXZlci4gKE9yLCBpZiBwb3NzaWJsZSBzaG93IHVzIHRoZSBjb2RlLikKPgo+IEJl c3QsCj4gLXhpbmxpYW5nCj4KPgo+ICAgICBUaGFua3MuLi4KPgo+ICAgICBSZWdhcmRzLAo+ICAg ICBDLlBhbG1pbmhhCj4KPiAgICAgLS0tIGJvb3QgbG9nIHNuaXBwZXQgLS0tCj4gICAgIFtkcm1d IEluaXRpYWxpemVkIGRybSAxLjEuMCAyMDA2MDgxMAo+ICAgICBkcm0tYXJjcGd1IGUwMDE3MDAw LnBndTogTm8gY29ubmVjdG9ycyByZXBvcnRlZCBjb25uZWN0ZWQgd2l0aCBtb2Rlcwo+ICAgICBb ZHJtXSBDYW5ub3QgZmluZCBhbnkgY3J0YyBvciBzaXplcyAtIGdvaW5nIDEwMjR4NzY4Cj4gICAg IENvbnNvbGU6IHN3aXRjaGluZyB0byBjb2xvdXIgZnJhbWUgYnVmZmVyIGRldmljZSAxMjh4NDgK PiAgICAgZHJtLWFyY3BndSBlMDAxNzAwMC5wZ3U6IGZiMDogIGZyYW1lIGJ1ZmZlciBkZXZpY2UK PiAgICAgW2RybV0gSW5pdGlhbGl6ZWQgZHJtLWFyY3BndSAxLjAuMCAyMDE1MTEyNyBvbiBtaW5v ciAwCj4gICAgIC0tLSBib290IGxvZyBzbmlwcGV0IC0tLQo+ICAgICAtLQo+ICAgICBUbyB1bnN1 YnNjcmliZSBmcm9tIHRoaXMgbGlzdDogc2VuZCB0aGUgbGluZSAidW5zdWJzY3JpYmUKPiAgICAg bGludXgtZmJkZXYiIGluCj4gICAgIHRoZSBib2R5IG9mIGEgbWVzc2FnZSB0byBtYWpvcmRvbW9A dmdlci5rZXJuZWwub3JnCj4gICAgIDxtYWlsdG86bWFqb3Jkb21vQHZnZXIua2VybmVsLm9yZz4K PiAgICAgTW9yZSBtYWpvcmRvbW8gaW5mbyBhdCBodHRwOi8vdmdlci5rZXJuZWwub3JnL21ham9y ZG9tby1pbmZvLmh0bWwKPgo+Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNr dG9wLm9yZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJp LWRldmVsCg==