linux-kernel - [PATCH v2 4/8] drm/bridge: dw-hdmi-i2s: enable lpcm multi channels

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Date:   Mon, 12 Aug 2019 14:07:22 +0200
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>
Cc:     Jerome Brunet <jbrunet@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Jonas Karlman <jonas@...boo.se>,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH v2 4/8] drm/bridge: dw-hdmi-i2s: enable lpcm multi channels

Properly setup the channel count and layout in dw-hdmi i2s driver so
we are not limited to 2 channels.

Also correct the maximum channel reported by the DAI from 6 to 8 ch

Reviewed-by: Jonas Karlman <jonas@...boo.se>
Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
index 2b624cff541d..caf8aed78fea 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
@@ -84,6 +84,7 @@ static int dw_hdmi_i2s_hw_params(struct device *dev, void *data,
 	}
 
 	dw_hdmi_set_sample_rate(hdmi, hparms->sample_rate);
+	dw_hdmi_set_channel_count(hdmi, hparms->channels);
 
 	hdmi_write(audio, inputclkfs, HDMI_AUD_INPUTCLKFS);
 	hdmi_write(audio, conf0, HDMI_AUD_CONF0);
@@ -139,7 +140,7 @@ static int snd_dw_hdmi_probe(struct platform_device *pdev)
 
 	pdata.ops		= &dw_hdmi_i2s_ops;
 	pdata.i2s		= 1;
-	pdata.max_i2s_channels	= 6;
+	pdata.max_i2s_channels	= 8;
 	pdata.data		= audio;
 
 	memset(&pdevinfo, 0, sizeof(pdevinfo));
-- 
2.21.0