From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 6 Nov 2012 06:19:16 +0000 (-0600)
Subject: OMAPDSS: HDMI: Add op to get audio DMA port address offset
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d7b6f4437fb7796af774c5423a4b9b486b19233f;p=linux-beck.git

OMAPDSS: HDMI: Add op to get audio DMA port address offset

It could be possible that the DMA port differs accross diferent HDMI IPs. Thus,
add an IP-specific function to obtain the address offset and size of the DMA
data port.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---

diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 3e8287c8709d..8dcecbca46a5 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -820,6 +820,7 @@ static const struct ti_hdmi_ip_ops omap4_hdmi_functions = {
 	.audio_start		=       ti_hdmi_4xxx_audio_start,
 	.audio_stop		=       ti_hdmi_4xxx_audio_stop,
 	.audio_config		=	ti_hdmi_4xxx_audio_config,
+	.audio_get_dma_port	=	ti_hdmi_4xxx_audio_get_dma_port,
 #endif
 
 };
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index b046c208cb97..216aa704f9d7 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -102,6 +102,8 @@ struct ti_hdmi_ip_ops {
 
 	int (*audio_config)(struct hdmi_ip_data *ip_data,
 		struct omap_dss_audio *audio);
+
+	int (*audio_get_dma_port)(u32 *offset, u32 *size);
 #endif
 
 };
@@ -183,5 +185,6 @@ int ti_hdmi_4xxx_audio_start(struct hdmi_ip_data *ip_data);
 void ti_hdmi_4xxx_audio_stop(struct hdmi_ip_data *ip_data);
 int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
 		struct omap_dss_audio *audio);
+int ti_hdmi_4xxx_audio_get_dma_port(u32 *offset, u32 *size);
 #endif
 #endif
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index a6efff257aa2..e18b222ed739 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -1418,4 +1418,13 @@ void ti_hdmi_4xxx_audio_stop(struct hdmi_ip_data *ip_data)
 	REG_FLD_MOD(hdmi_wp_base(ip_data),
 		    HDMI_WP_AUDIO_CTRL, false, 30, 30);
 }
+
+int ti_hdmi_4xxx_audio_get_dma_port(u32 *offset, u32 *size)
+{
+	if (!offset || !size)
+		return -EINVAL;
+	*offset = HDMI_WP_AUDIO_DATA;
+	*size = 4;
+	return 0;
+}
 #endif