[v2 2/2] drm: bridge: adv7511: Extend list of audio sample rates

From: Bogdan Togorean
Date: Mon Apr 13 2020 - 07:36:40 EST


ADV7511 support sample rates up to 192kHz. CTS and N parameters should
be computed accordingly so this commit extend the list up to maximum
supported sample rate.

Signed-off-by: Bogdan Togorean <bogdan.togorean@xxxxxxxxxx>
Reviewed-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx>
---
Changes in v2:
- replaced magic numbers with formula for computation of n
---
drivers/gpu/drm/bridge/adv7511/adv7511_audio.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c
index 1e9b128d229b..f101dd2819b5 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c
@@ -19,13 +19,15 @@ static void adv7511_calc_cts_n(unsigned int f_tmds, unsigned int fs,
{
switch (fs) {
case 32000:
- *n = 4096;
+ case 48000:
+ case 96000:
+ case 192000:
+ *n = fs * 128 / 1000;
break;
case 44100:
- *n = 6272;
- break;
- case 48000:
- *n = 6144;
+ case 88200:
+ case 176400:
+ *n = fs * 128 / 900;
break;
}

--
2.17.1