From 8067f62bccaff4d5c7e0900431e8ab4372dcb8ab Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Mon, 12 Aug 2019 14:07:19 +0200 Subject: drm/bridge: dw-hdmi-i2s: support more i2s format The dw-hdmi-i2s supports more formats than just regular i2s. Add support for left justified, right justified and dsp modes A and B. Reviewed-by: Jonas Karlman Signed-off-by: Jerome Brunet Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20190812120726.1528-2-jbrunet@baylibre.com --- .../gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c | 26 +++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c') 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 5cbb71a866d5..2b624cff541d 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c @@ -44,9 +44,8 @@ static int dw_hdmi_i2s_hw_params(struct device *dev, void *data, u8 inputclkfs = 0; /* it cares I2S only */ - if ((fmt->fmt != HDMI_I2S) || - (fmt->bit_clk_master | fmt->frame_clk_master)) { - dev_err(dev, "unsupported format/settings\n"); + if (fmt->bit_clk_master | fmt->frame_clk_master) { + dev_err(dev, "unsupported clock settings\n"); return -EINVAL; } @@ -63,6 +62,27 @@ static int dw_hdmi_i2s_hw_params(struct device *dev, void *data, break; } + switch (fmt->fmt) { + case HDMI_I2S: + conf1 |= HDMI_AUD_CONF1_MODE_I2S; + break; + case HDMI_RIGHT_J: + conf1 |= HDMI_AUD_CONF1_MODE_RIGHT_J; + break; + case HDMI_LEFT_J: + conf1 |= HDMI_AUD_CONF1_MODE_LEFT_J; + break; + case HDMI_DSP_A: + conf1 |= HDMI_AUD_CONF1_MODE_BURST_1; + break; + case HDMI_DSP_B: + conf1 |= HDMI_AUD_CONF1_MODE_BURST_2; + break; + default: + dev_err(dev, "unsupported format\n"); + return -EINVAL; + } + dw_hdmi_set_sample_rate(hdmi, hparms->sample_rate); hdmi_write(audio, inputclkfs, HDMI_AUD_INPUTCLKFS); -- cgit