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@gmail.com
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 */
return PTR_ERR(pdata->jack_detection_gpio);}
pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch");