On Tue 2015-01-27 15:27:58, Peter Ujfalusi wrote: > Hi, > > On 01/26/2015 10:51 PM, Pali Rohár wrote: > > qemu does not emulate it > > Not sure about this... How does qemu emulate tlv320aic3106, tpa6130a2a, McBSP, > sDMA for audio to work? What about the other three GPIOs in this machine driver? > > The "nokia,n900-audio" compatible mandates that the jack-detection GPIO must > be provided (Documentation/devicetree/bindings/sound/nokia,rx51.txt) since it > means that the driver is running on the Nokia n900 HW. Fix the documentation, then :-). [Actually, GPIO is provided, it just can't be requested, AFAICT.] It is quite important to keep qemu working, really. Debugging early boot on hardware is very hard, for example. And yes, some day we may need different dts for n900-qemu (vs. n900-hw), but lets not do it just yet. Pavel > > > Signed-off-by: Pali Rohár <pali.rohar@xxxxxxxxx> > > --- > > sound/soc/omap/rx51.c | 45 +++++++++++++++++++++++++-------------------- > > 1 file changed, 25 insertions(+), 20 deletions(-) > > > > diff --git a/sound/soc/omap/rx51.c b/sound/soc/omap/rx51.c > > index 04896d6..a689021 100644 > > --- a/sound/soc/omap/rx51.c > > +++ b/sound/soc/omap/rx51.c > > @@ -310,25 +310,27 @@ static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd) > > return err; > > } > > > > - /* AV jack detection */ > > - err = snd_soc_jack_new(codec, "AV Jack", > > - SND_JACK_HEADSET | SND_JACK_VIDEOOUT, > > - &rx51_av_jack); > > - if (err) { > > - dev_err(card->dev, "Failed to add AV Jack\n"); > > - return err; > > - } > > + if (!IS_ERR(pdata->jack_detection_gpio)) { > > + /* AV jack detection */ > > + err = snd_soc_jack_new(codec, "AV Jack", > > + SND_JACK_HEADSET | SND_JACK_VIDEOOUT, > > + &rx51_av_jack); > > + if (err) { > > + dev_err(card->dev, "Failed to add AV Jack\n"); > > + return err; > > + } > > > > - /* prepare gpio for snd_soc_jack_add_gpios */ > > - rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio); > > - devm_gpiod_put(card->dev, pdata->jack_detection_gpio); > > + /* prepare gpio for snd_soc_jack_add_gpios */ > > + rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio); > > + devm_gpiod_put(card->dev, pdata->jack_detection_gpio); > > > > - err = snd_soc_jack_add_gpios(&rx51_av_jack, > > - ARRAY_SIZE(rx51_av_jack_gpios), > > - rx51_av_jack_gpios); > > - if (err) { > > - dev_err(card->dev, "Failed to add GPIOs\n"); > > - return err; > > + err = snd_soc_jack_add_gpios(&rx51_av_jack, > > + ARRAY_SIZE(rx51_av_jack_gpios), > > + rx51_av_jack_gpios); > > + if (err) { > > + dev_err(card->dev, "Failed to add GPIOs\n"); > > + return err; > > + } > > } > > > > return err; > > @@ -336,8 +338,11 @@ static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd) > > > > static int rx51_card_remove(struct snd_soc_card *card) > > { > > - snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios), > > - rx51_av_jack_gpios); > > + struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); > > + > > + if (!IS_ERR(pdata->jack_detection_gpio)) > > + snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios), > > + rx51_av_jack_gpios); > > > > return 0; > > } > > @@ -470,8 +475,8 @@ static int rx51_soc_probe(struct platform_device *pdev) > > pdata->jack_detection_gpio = devm_gpiod_get(card->dev, > > "jack-detection"); > > if (IS_ERR(pdata->jack_detection_gpio)) { > > + /* Do not fail, qemu does not emulate jack detection gpio */ > > dev_err(card->dev, "could not get jack detection gpio\n"); > > - return PTR_ERR(pdata->jack_detection_gpio); > > } > > > > pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch"); > > > > -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html