OMAPDSS: hdmi_wp: Add function for getting audio dma address

The audio dma port is found in the hdmi_wp physical address space.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/video/fbdev/omap2/dss/hdmi.h b/drivers/video/fbdev/omap2/dss/hdmi.h
index aa2edd880ff3..5e0df84a736a 100644
--- a/drivers/video/fbdev/omap2/dss/hdmi.h
+++ b/drivers/video/fbdev/omap2/dss/hdmi.h
@@ -232,6 +232,7 @@ struct hdmi_core_audio_config {
 
 struct hdmi_wp_data {
         void __iomem *base;
+        phys_addr_t phys_base;
 };
 
 struct hdmi_pll_data {
@@ -301,6 +302,7 @@ void hdmi_wp_video_config_timing(struct hdmi_wp_data *wp,
 void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
                 struct omap_video_timings *timings, struct hdmi_config *param);
 int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp);
+phys_addr_t hdmi_wp_get_audio_dma_addr(struct hdmi_wp_data *wp);
 
 /* HDMI PLL funcs */
 void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s);
diff --git a/drivers/video/fbdev/omap2/dss/hdmi_wp.c b/drivers/video/fbdev/omap2/dss/hdmi_wp.c
index 4ead96218a31..c15377e242cc 100644
--- a/drivers/video/fbdev/omap2/dss/hdmi_wp.c
+++ b/drivers/video/fbdev/omap2/dss/hdmi_wp.c
@@ -249,6 +249,7 @@ int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp)
                 DSSERR("can't get WP mem resource\n");
                 return -EINVAL;
         }
+        wp->phys_base = res->start;
 
         wp->base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(wp->base)) {
@@ -258,3 +259,8 @@ int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp)
 
         return 0;
 }
+
+phys_addr_t hdmi_wp_get_audio_dma_addr(struct hdmi_wp_data *wp)
+{
+        return wp->phys_base + HDMI_WP_AUDIO_DATA;
+}