Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-16 17:12:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

OMAPDSS: hdmi5: Register ASoC platform device for omap hdmi audio

Browse Source 
Implements callbacks for OMAP HDMI audio platform driver and registers
it in probe function. Unregistering is done in remove function.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Jyri Sarha 2014-05-23 16:20:46 +03:00 committed by Tomi Valkeinen
parent 274a1e8b2b
commit 45302d7e1b
1 changed files with 125 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

125
drivers/video/fbdev/omap2/dss/hdmi5.c
View File

@ -38,6 +38,7 @@
#include <linux/gpio.h>
#include <linux/regulator/consumer.h>
#include <video/omapdss.h>
#include <sound/omap-hdmi-audio.h>
#include "hdmi5_core.h"
#include "dss.h"
@ -368,6 +369,8 @@ static int hdmi_display_enable(struct omap_dss_device *dssdev)
goto err0;
}
hdmi.display_enabled = true;
mutex_unlock(&hdmi.lock);
return 0;
@ -382,8 +385,13 @@ static void hdmi_display_disable(struct omap_dss_device *dssdev)
mutex_lock(&hdmi.lock);
if (hdmi.audio_pdev && hdmi.audio_abort_cb)
hdmi.audio_abort_cb(&hdmi.audio_pdev->dev);
hdmi_power_off_full(dssdev);
hdmi.display_enabled = false;
mutex_unlock(&hdmi.lock);
}
@ -559,6 +567,112 @@ err:
return r;
}
/* Audio callbacks */
static int hdmi_audio_startup(struct device *dev,
void (*abort_cb)(struct device *dev))
{
struct omap_hdmi *hd = dev_get_drvdata(dev);
int ret = 0;
mutex_lock(&hd->lock);
if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) {
ret = -EPERM;
goto out;
}
hd->audio_abort_cb = abort_cb;
out:
mutex_unlock(&hd->lock);
return ret;
}
static int hdmi_audio_shutdown(struct device *dev)
{
struct omap_hdmi *hd = dev_get_drvdata(dev);
mutex_lock(&hd->lock);
hd->audio_abort_cb = NULL;
mutex_unlock(&hd->lock);
return 0;
}
static int hdmi_audio_start(struct device *dev)
{
struct omap_hdmi *hd = dev_get_drvdata(dev);
WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
WARN_ON(!hd->display_enabled);
hdmi_wp_audio_enable(&hd->wp, true);
hdmi_wp_audio_core_req_enable(&hd->wp, true);
return 0;
}
static void hdmi_audio_stop(struct device *dev)
{
struct omap_hdmi *hd = dev_get_drvdata(dev);
WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
WARN_ON(!hd->display_enabled);
hdmi_wp_audio_core_req_enable(&hd->wp, false);
hdmi_wp_audio_enable(&hd->wp, false);
}
static int hdmi_audio_config(struct device *dev,
struct omap_dss_audio *dss_audio)
{
struct omap_hdmi *hd = dev_get_drvdata(dev);
int ret;
mutex_lock(&hd->lock);
if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) {
ret = -EPERM;
goto out;
}
ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio,
hd->cfg.timings.pixelclock);
out:
mutex_unlock(&hd->lock);
return ret;
}
static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
.audio_startup = hdmi_audio_startup,
.audio_shutdown = hdmi_audio_shutdown,
.audio_start = hdmi_audio_start,
.audio_stop = hdmi_audio_stop,
.audio_config = hdmi_audio_config,
};
static int hdmi_audio_register(struct device *dev)
{
struct omap_hdmi_audio_pdata pdata = {
.dev = dev,
.dss_version = omapdss_get_version(),
.audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi.wp),
.ops = &hdmi_audio_ops,
};
hdmi.audio_pdev = platform_device_register_data(
dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
&pdata, sizeof(pdata));
if (IS_ERR(hdmi.audio_pdev))
return PTR_ERR(hdmi.audio_pdev);
return 0;
}
/* HDMI HW IP initialisation */
static int omapdss_hdmihw_probe(struct platform_device *pdev)
{
@ -611,6 +725,14 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
hdmi_init_output(pdev);
r = hdmi_audio_register(&pdev->dev);
if (r) {
DSSERR("Registering HDMI audio failed %d\n", r);
hdmi_uninit_output(pdev);
pm_runtime_disable(&pdev->dev);
return r;
}
dss_debugfs_create_file("hdmi", hdmi_dump_regs);
return 0;
@ -621,6 +743,9 @@ err:
static int __exit omapdss_hdmihw_remove(struct platform_device *pdev)
{
if (hdmi.audio_pdev)
platform_device_unregister(hdmi.audio_pdev);
hdmi_uninit_output(pdev);
hdmi_pll_uninit(&hdmi.pll);