From f8e1fa0fc8bd13122324da7d1e80d66641220680 Mon Sep 17 00:00:00 2001
From: Xin Ji <xji@analogixsemi.com>
Date: Tue, 26 Jul 2022 11:30:58 +0800
Subject: [PATCH] drm/bridge: anx7625: Support HDMI_I2S audio format
1. Support HDMI_I2S audio format.
2. Return 0 if there is no sink connection in .hw_param callback.
Signed-off-by: Xin Ji <xji@analogixsemi.com>
Acked-by: Hsin-Yi Wang <hsinyi@chromium.org>
Acked-by: Jiaxin Yu<jiaxin.yu@mediatek.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220726033058.403715-1-xji@analogixsemi.com
---
drivers/gpu/drm/bridge/analogix/anx7625.c | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 79fc7a50b4976..c74b5df4cadee 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1797,8 +1797,13 @@ static int anx7625_audio_hw_params(struct device *dev, void *data,
int wl, ch, rate;
int ret = 0;
- if (fmt->fmt != HDMI_DSP_A) {
- DRM_DEV_ERROR(dev, "only supports DSP_A\n");
+ if (anx7625_sink_detect(ctx) == connector_status_disconnected) {
+ DRM_DEV_DEBUG_DRIVER(dev, "DP not connected\n");
+ return 0;
+ }
+
+ if (fmt->fmt != HDMI_DSP_A && fmt->fmt != HDMI_I2S) {
+ DRM_DEV_ERROR(dev, "only supports DSP_A & I2S\n");
return -EINVAL;
}
@@ -1806,10 +1811,16 @@ static int anx7625_audio_hw_params(struct device *dev, void *data,
params->sample_rate, params->sample_width,
params->cea.channels);
- ret |= anx7625_write_and_or(ctx, ctx->i2c.tx_p2_client,
- AUDIO_CHANNEL_STATUS_6,
- ~I2S_SLAVE_MODE,
- TDM_SLAVE_MODE);
+ if (fmt->fmt == HDMI_DSP_A)
+ ret = anx7625_write_and_or(ctx, ctx->i2c.tx_p2_client,
+ AUDIO_CHANNEL_STATUS_6,
+ ~I2S_SLAVE_MODE,
+ TDM_SLAVE_MODE);
+ else
+ ret = anx7625_write_and_or(ctx, ctx->i2c.tx_p2_client,
+ AUDIO_CHANNEL_STATUS_6,
+ ~TDM_SLAVE_MODE,
+ I2S_SLAVE_MODE);
/* Word length */
switch (params->sample_width) {
--
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