diff options
Diffstat (limited to 'drivers/gpu/drm/bridge/dw-hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/dw-hdmi.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c index b71088dab268..235ce7d1583d 100644 --- a/drivers/gpu/drm/bridge/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/dw-hdmi.c @@ -1871,10 +1871,11 @@ int dw_hdmi_bind(struct device *dev, struct device *master, struct device_node *np = dev->of_node; struct platform_device_info pdevinfo; struct device_node *ddc_node; - struct dw_hdmi_audio_data audio; struct dw_hdmi *hdmi; int ret; u32 val = 1; + u8 config0; + u8 config1; hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL); if (!hdmi) @@ -2011,7 +2012,12 @@ int dw_hdmi_bind(struct device *dev, struct device *master, pdevinfo.parent = dev; pdevinfo.id = PLATFORM_DEVID_AUTO; - if (hdmi_readb(hdmi, HDMI_CONFIG1_ID) & HDMI_CONFIG1_AHB) { + config0 = hdmi_readb(hdmi, HDMI_CONFIG0_ID); + config1 = hdmi_readb(hdmi, HDMI_CONFIG1_ID); + + if (config1 & HDMI_CONFIG1_AHB) { + struct dw_hdmi_audio_data audio; + audio.phys = iores->start; audio.base = hdmi->regs; audio.irq = irq; @@ -2023,6 +2029,18 @@ int dw_hdmi_bind(struct device *dev, struct device *master, pdevinfo.size_data = sizeof(audio); pdevinfo.dma_mask = DMA_BIT_MASK(32); hdmi->audio = platform_device_register_full(&pdevinfo); + } else if (config0 & HDMI_CONFIG0_I2S) { + struct dw_hdmi_i2s_audio_data audio; + + audio.hdmi = hdmi; + audio.write = hdmi_writeb; + audio.read = hdmi_readb; + + pdevinfo.name = "dw-hdmi-i2s-audio"; + pdevinfo.data = &audio; + pdevinfo.size_data = sizeof(audio); + pdevinfo.dma_mask = DMA_BIT_MASK(32); + hdmi->audio = platform_device_register_full(&pdevinfo); } /* Reset HDMI DDC I2C master controller and mute I2CM interrupts */ |