The N and CTS parameters are relevant to all HDMI implmentations and
not specific to a given IP. Hence, the calculation is relocated
into the generic HDMI driver.
Also, deep color is not queried but it is still considered in the
calculation of N. This is to be changed when deep color functionality is
implemented in the driver.
Signed-off-by: Ricardo Neri <ricardo.neri@xxxxxx>
---
drivers/video/omap2/dss/hdmi.c | 42 +++++++++++++++++++++
drivers/video/omap2/dss/ti_hdmi.h | 1 +
drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 57 -----------------------------
drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h | 2 -
4 files changed, 43 insertions(+), 59 deletions(-)
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 27d4fba..7fcc22f 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -598,6 +598,48 @@ static void hdmi_put_clocks(void)
clk_put(hdmi.sys_clk);
}
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts)
+{
+ u32 deep_color;
+ u32 pclk = hdmi.ip_data.cfg.timings.timings.pixel_clock;
+
+ if (n == NULL || cts == NULL)
+ return -EINVAL;
+
+ /* TODO: When implemented, query deep color mode here. */
+ deep_color = 100;
+
+ switch (sample_freq) {
+ case 32000:
+ if ((deep_color == 125) && ((pclk == 54054)
+ || (pclk == 74250)))
+ *n = 8192;
+ else
+ *n = 4096;
+ break;
+ case 44100:
+ *n = 6272;
+ break;
+ case 48000:
+ if ((deep_color == 125) && ((pclk == 54054)
+ || (pclk == 74250)))
+ *n = 8192;
+ else
+ *n = 6144;
+ break;
+ default:
+ *n = 0;
+ return -EINVAL;
+ }
+
+ /* Calculate CTS. See HDMI 1.3a or 1.4a specifications */
+ *cts = pclk * (*n / 128) * deep_color / (sample_freq / 10);
+
+ return 0;
+}
+#endif
+
/* HDMI HW IP initialisation */
static int omapdss_hdmihw_probe(struct platform_device *pdev)
{
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index 211da6f..db22a02 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -145,6 +145,7 @@ void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts);
void ti_hdmi_4xxx_wp_audio_enable(struct hdmi_ip_data *ip_data, bool enable);
void ti_hdmi_4xxx_audio_start(struct hdmi_ip_data *ip_data, bool enable);
#endif
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index da2806c..d587b20 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -1226,63 +1226,6 @@ void hdmi_core_audio_infoframe_config(struct hdmi_ip_data *ip_data,
*/
}
-int hdmi_config_audio_acr(struct hdmi_ip_data *ip_data,
- u32 sample_freq, u32 *n, u32 *cts)
-{
- u32 r;
- u32 deep_color = 0;
- u32 pclk = ip_data->cfg.timings.timings.pixel_clock;
-
- if (n == NULL || cts == NULL)
- return -EINVAL;
- /*
- * Obtain current deep color configuration. This needed
- * to calculate the TMDS clock based on the pixel clock.
- */
- r = REG_GET(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG, 1, 0);
- switch (r) {
- case 1: /* No deep color selected */
- deep_color = 100;
- break;
- case 2: /* 10-bit deep color selected */
- deep_color = 125;
- break;
- case 3: /* 12-bit deep color selected */
- deep_color = 150;
- break;
- default:
- return -EINVAL;
- }
-
- switch (sample_freq) {
- case 32000:
- if ((deep_color == 125) && ((pclk == 54054)
- || (pclk == 74250)))
- *n = 8192;
- else
- *n = 4096;
- break;
- case 44100:
- *n = 6272;
- break;
- case 48000:
- if ((deep_color == 125) && ((pclk == 54054)
- || (pclk == 74250)))
- *n = 8192;
- else
- *n = 6144;
- break;
- default:
- *n = 0;
- return -EINVAL;
- }
-
- /* Calculate CTS. See HDMI 1.3a or 1.4a specifications */
- *cts = pclk * (*n / 128) * deep_color / (sample_freq / 10);
-
- return 0;
-}
-
void ti_hdmi_4xxx_wp_audio_enable(struct hdmi_ip_data *ip_data, bool enable)
{
REG_FLD_MOD(hdmi_wp_base(ip_data),
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
index 4359001..e4f973f 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
@@ -516,8 +516,6 @@ struct hdmi_core_audio_config {
};
#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-int hdmi_config_audio_acr(struct hdmi_ip_data *ip_data,
- u32 sample_freq, u32 *n, u32 *cts);
void hdmi_core_audio_infoframe_config(struct hdmi_ip_data *ip_data,
struct snd_cea_861_aud_if *info_aud);
void hdmi_core_audio_config(struct hdmi_ip_data *ip_data,
--
1.7.0.4
--
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