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TDA998x updates:

Browse Source 
- improve the driver's approach to audio, adding support for more I2S
   based formats, particularly other justifications, and preparing the
   driver to support other bclk ratios.
 
 - add support for pixel repeated modes, tested with a Panasonic TV.
 
 - correct the quantisation range handling; in particular, do not send
   full range RGB to the sink when the sink does not support full range
   RGB.
 
 - Send the HDMI vendor info frame when required.
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Merge tag 'for-airlie-tda998x' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-next

TDA998x updates:
- improve the driver's approach to audio, adding support for more I2S
  based formats, particularly other justifications, and preparing the
  driver to support other bclk ratios.

- add support for pixel repeated modes, tested with a Panasonic TV.

- correct the quantisation range handling; in particular, do not send
  full range RGB to the sink when the sink does not support full range
  RGB.

- Send the HDMI vendor info frame when required.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Russell King <rmk@armlinux.org.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190625125005.GA31503@rmk-PC.armlinux.org.uk
This commit is contained in:
Dave Airlie 2019-06-27 11:48:02 +10:00
commit b22342ea07
1 changed files with 304 additions and 150 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

454
drivers/gpu/drm/i2c/tda998x_drv.c
View File

@ -35,9 +35,26 @@
#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
struct tda998x_audio_port {
u8 format; /* AFMT_xxx */
u8 config; /* AP value */
enum {
AUDIO_ROUTE_I2S,
AUDIO_ROUTE_SPDIF,
AUDIO_ROUTE_NUM
};
struct tda998x_audio_route {
u8 ena_aclk;
u8 mux_ap;
u8 aip_clksel;
};
struct tda998x_audio_settings {
const struct tda998x_audio_route *route;
struct hdmi_audio_infoframe cea;
unsigned int sample_rate;
u8 status[5];
u8 ena_ap;
u8 i2s_format;
u8 cts_n;
};
struct tda998x_priv {
@ -50,11 +67,12 @@ struct tda998x_priv {
bool is_on;
bool supports_infoframes;
bool sink_has_audio;
enum hdmi_quantization_range rgb_quant_range;
u8 vip_cntrl_0;
u8 vip_cntrl_1;
u8 vip_cntrl_2;
unsigned long tmds_clock;
struct tda998x_audio_params audio_params;
struct tda998x_audio_settings audio;
struct platform_device *audio_pdev;
struct mutex audio_mutex;
@ -72,7 +90,7 @@ struct tda998x_priv {
struct drm_bridge bridge;
struct drm_connector connector;
struct tda998x_audio_port audio_port[2];
u8 audio_port_enable[AUDIO_ROUTE_NUM];
struct tda9950_glue cec_glue;
struct gpio_desc *calib;
struct cec_notifier *cec_notify;
@ -241,8 +259,11 @@ struct tda998x_priv {
# define HVF_CNTRL_1_PAD(x) (((x) & 3) << 4)
# define HVF_CNTRL_1_SEMI_PLANAR (1 << 6)
#define REG_RPT_CNTRL REG(0x00, 0xf0) /* write */
# define RPT_CNTRL_REPEAT(x) ((x) & 15)
#define REG_I2S_FORMAT REG(0x00, 0xfc) /* read/write */
# define I2S_FORMAT(x) (((x) & 3) << 0)
# define I2S_FORMAT_PHILIPS (0 << 0)
# define I2S_FORMAT_LEFT_J (2 << 0)
# define I2S_FORMAT_RIGHT_J (3 << 0)
#define REG_AIP_CLKSEL REG(0x00, 0xfd) /* write */
# define AIP_CLKSEL_AIP_SPDIF (0 << 3)
# define AIP_CLKSEL_AIP_I2S (1 << 3)
@ -832,16 +853,14 @@ tda998x_write_if(struct tda998x_priv *priv, u8 bit, u16 addr,
reg_set(priv, REG_DIP_IF_FLAGS, bit);
}
static int tda998x_write_aif(struct tda998x_priv *priv,
struct hdmi_audio_infoframe *cea)
static void tda998x_write_aif(struct tda998x_priv *priv,
const struct hdmi_audio_infoframe *cea)
{
union hdmi_infoframe frame;
frame.audio = *cea;
tda998x_write_if(priv, DIP_IF_FLAGS_IF4, REG_IF4_HB0, &frame);
return 0;
}
static void
@ -852,12 +871,133 @@ tda998x_write_avi(struct tda998x_priv *priv, const struct drm_display_mode *mode
drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
&priv->connector, mode);
frame.avi.quantization_range = HDMI_QUANTIZATION_RANGE_FULL;
drm_hdmi_avi_infoframe_quant_range(&frame.avi, &priv->connector, mode,
priv->rgb_quant_range);
tda998x_write_if(priv, DIP_IF_FLAGS_IF2, REG_IF2_HB0, &frame);
}
static void tda998x_write_vsi(struct tda998x_priv *priv,
const struct drm_display_mode *mode)
{
union hdmi_infoframe frame;
if (drm_hdmi_vendor_infoframe_from_display_mode(&frame.vendor.hdmi,
&priv->connector,
mode))
reg_clear(priv, REG_DIP_IF_FLAGS, DIP_IF_FLAGS_IF1);
else
tda998x_write_if(priv, DIP_IF_FLAGS_IF1, REG_IF1_HB0, &frame);
}
/* Audio support */
static const struct tda998x_audio_route tda998x_audio_route[AUDIO_ROUTE_NUM] = {
[AUDIO_ROUTE_I2S] = {
.ena_aclk = 1,
.mux_ap = MUX_AP_SELECT_I2S,
.aip_clksel = AIP_CLKSEL_AIP_I2S | AIP_CLKSEL_FS_ACLK,
},
[AUDIO_ROUTE_SPDIF] = {
.ena_aclk = 0,
.mux_ap = MUX_AP_SELECT_SPDIF,
.aip_clksel = AIP_CLKSEL_AIP_SPDIF | AIP_CLKSEL_FS_FS64SPDIF,
},
};
/* Configure the TDA998x audio data and clock routing. */
static int tda998x_derive_routing(struct tda998x_priv *priv,
struct tda998x_audio_settings *s,
unsigned int route)
{
s->route = &tda998x_audio_route[route];
s->ena_ap = priv->audio_port_enable[route];
if (s->ena_ap == 0) {
dev_err(&priv->hdmi->dev, "no audio configuration found\n");
return -EINVAL;
}
return 0;
}
/*
* The audio clock divisor register controls a divider producing Audio_Clk_Out
* from SERclk by dividing it by 2^n where 0 <= n <= 5. We don't know what
* Audio_Clk_Out or SERclk are. We guess SERclk is the same as TMDS clock.
*
* It seems that Audio_Clk_Out must be the smallest value that is greater
* than 128*fs, otherwise audio does not function. There is some suggestion
* that 126*fs is a better value.
*/
static u8 tda998x_get_adiv(struct tda998x_priv *priv, unsigned int fs)
{
unsigned long min_audio_clk = fs * 128;
unsigned long ser_clk = priv->tmds_clock * 1000;
u8 adiv;
for (adiv = AUDIO_DIV_SERCLK_32; adiv != AUDIO_DIV_SERCLK_1; adiv--)
if (ser_clk > min_audio_clk << adiv)
break;
dev_dbg(&priv->hdmi->dev,
"ser_clk=%luHz fs=%uHz min_aclk=%luHz adiv=%d\n",
ser_clk, fs, min_audio_clk, adiv);
return adiv;
}
/*
* In auto-CTS mode, the TDA998x uses a "measured time stamp" counter to
* generate the CTS value. It appears that the "measured time stamp" is
* the number of TDMS clock cycles within a number of audio input clock
* cycles defined by the k and N parameters defined below, in a similar
* way to that which is set out in the CTS generation in the HDMI spec.
*
* tmdsclk ----> mts -> /m ---> CTS
* ^
* sclk -> /k -> /N
*
* CTS = mts / m, where m is 2^M.
* /k is a divider based on the K value below, K+1 for K < 4, or 8 for K >= 4
* /N is a divider based on the HDMI specified N value.
*
* This produces the following equation:
* CTS = tmds_clock * k * N / (sclk * m)
*
* When combined with the sink-side equation, and realising that sclk is
* bclk_ratio * fs, we end up with:
* k = m * bclk_ratio / 128.
*
* Note: S/PDIF always uses a bclk_ratio of 64.
*/
static int tda998x_derive_cts_n(struct tda998x_priv *priv,
struct tda998x_audio_settings *settings,
unsigned int ratio)
{
switch (ratio) {
case 16:
settings->cts_n = CTS_N_M(3) | CTS_N_K(0);
break;
case 32:
settings->cts_n = CTS_N_M(3) | CTS_N_K(1);
break;
case 48:
settings->cts_n = CTS_N_M(3) | CTS_N_K(2);
break;
case 64:
settings->cts_n = CTS_N_M(3) | CTS_N_K(3);
break;
case 128:
settings->cts_n = CTS_N_M(0) | CTS_N_K(0);
break;
default:
dev_err(&priv->hdmi->dev, "unsupported bclk ratio %ufs\n",
ratio);
return -EINVAL;
}
return 0;
}
static void tda998x_audio_mute(struct tda998x_priv *priv, bool on)
{
if (on) {
@ -869,79 +1009,34 @@ static void tda998x_audio_mute(struct tda998x_priv *priv, bool on)
}
}
static int
tda998x_configure_audio(struct tda998x_priv *priv,
struct tda998x_audio_params *params)
static void tda998x_configure_audio(struct tda998x_priv *priv)
{
u8 buf[6], clksel_aip, clksel_fs, cts_n, adiv;
const struct tda998x_audio_settings *settings = &priv->audio;
u8 buf[6], adiv;
u32 n;
/* If audio is not configured, there is nothing to do. */
if (settings->ena_ap == 0)
return;
adiv = tda998x_get_adiv(priv, settings->sample_rate);
/* Enable audio ports */
reg_write(priv, REG_ENA_AP, params->config);
/* Set audio input source */
switch (params->format) {
case AFMT_SPDIF:
reg_write(priv, REG_ENA_ACLK, 0);
reg_write(priv, REG_MUX_AP, MUX_AP_SELECT_SPDIF);
clksel_aip = AIP_CLKSEL_AIP_SPDIF;
clksel_fs = AIP_CLKSEL_FS_FS64SPDIF;
cts_n = CTS_N_M(3) | CTS_N_K(3);
break;
case AFMT_I2S:
reg_write(priv, REG_ENA_ACLK, 1);
reg_write(priv, REG_MUX_AP, MUX_AP_SELECT_I2S);
clksel_aip = AIP_CLKSEL_AIP_I2S;
clksel_fs = AIP_CLKSEL_FS_ACLK;
switch (params->sample_width) {
case 16:
cts_n = CTS_N_M(3) | CTS_N_K(1);
break;
case 18:
case 20:
case 24:
cts_n = CTS_N_M(3) | CTS_N_K(2);
break;
default:
case 32:
cts_n = CTS_N_M(3) | CTS_N_K(3);
break;
}
break;
default:
dev_err(&priv->hdmi->dev, "Unsupported I2S format\n");
return -EINVAL;
}
reg_write(priv, REG_AIP_CLKSEL, clksel_aip);
reg_write(priv, REG_ENA_AP, settings->ena_ap);
reg_write(priv, REG_ENA_ACLK, settings->route->ena_aclk);
reg_write(priv, REG_MUX_AP, settings->route->mux_ap);
reg_write(priv, REG_I2S_FORMAT, settings->i2s_format);
reg_write(priv, REG_AIP_CLKSEL, settings->route->aip_clksel);
reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_LAYOUT |
AIP_CNTRL_0_ACR_MAN); /* auto CTS */
reg_write(priv, REG_CTS_N, cts_n);
/*
* Audio input somehow depends on HDMI line rate which is
* related to pixclk. Testing showed that modes with pixclk
* >100MHz need a larger divider while <40MHz need the default.
* There is no detailed info in the datasheet, so we just
* assume 100MHz requires larger divider.
*/
adiv = AUDIO_DIV_SERCLK_8;
if (priv->tmds_clock > 100000)
adiv++; /* AUDIO_DIV_SERCLK_16 */
/* S/PDIF asks for a larger divider */
if (params->format == AFMT_SPDIF)
adiv++; /* AUDIO_DIV_SERCLK_16 or _32 */
reg_write(priv, REG_CTS_N, settings->cts_n);
reg_write(priv, REG_AUDIO_DIV, adiv);
/*
* This is the approximate value of N, which happens to be
* the recommended values for non-coherent clocks.
*/
n = 128 * params->sample_rate / 1000;
n = 128 * settings->sample_rate / 1000;
/* Write the CTS and N values */
buf[0] = 0x44;
@ -952,9 +1047,6 @@ tda998x_configure_audio(struct tda998x_priv *priv,
buf[5] = n >> 16;
reg_write_range(priv, REG_ACR_CTS_0, buf, 6);
/* Set CTS clock reference */
reg_write(priv, REG_AIP_CLKSEL, clksel_aip | clksel_fs);
/* Reset CTS generator */
reg_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_CTS);
reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_CTS);
@ -963,17 +1055,17 @@ tda998x_configure_audio(struct tda998x_priv *priv,
* The REG_CH_STAT_B-registers skip IEC958 AES2 byte, because
* there is a separate register for each I2S wire.
*/
buf[0] = params->status[0];
buf[1] = params->status[1];
buf[2] = params->status[3];
buf[3] = params->status[4];
buf[0] = settings->status[0];
buf[1] = settings->status[1];
buf[2] = settings->status[3];
buf[3] = settings->status[4];
reg_write_range(priv, REG_CH_STAT_B(0), buf, 4);
tda998x_audio_mute(priv, true);
msleep(20);
tda998x_audio_mute(priv, false);
return tda998x_write_aif(priv, &params->cea);
tda998x_write_aif(priv, &settings->cea);
}
static int tda998x_audio_hw_params(struct device *dev, void *data,
@ -981,9 +1073,10 @@ static int tda998x_audio_hw_params(struct device *dev, void *data,
struct hdmi_codec_params *params)
{
struct tda998x_priv *priv = dev_get_drvdata(dev);
int i, ret;
struct tda998x_audio_params audio = {
.sample_width = params->sample_width,
unsigned int bclk_ratio;
bool spdif = daifmt->fmt == HDMI_SPDIF;
int ret;
struct tda998x_audio_settings audio = {
.sample_rate = params->sample_rate,
.cea = params->cea,
};
@ -993,46 +1086,48 @@ static int tda998x_audio_hw_params(struct device *dev, void *data,
switch (daifmt->fmt) {
case HDMI_I2S:
if (daifmt->bit_clk_inv || daifmt->frame_clk_inv ||
daifmt->bit_clk_master || daifmt->frame_clk_master) {
dev_err(dev, "%s: Bad flags %d %d %d %d\n", __func__,
daifmt->bit_clk_inv, daifmt->frame_clk_inv,
daifmt->bit_clk_master,
daifmt->frame_clk_master);
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(priv->audio_port); i++)
if (priv->audio_port[i].format == AFMT_I2S)
audio.config = priv->audio_port[i].config;
audio.format = AFMT_I2S;
audio.i2s_format = I2S_FORMAT_PHILIPS;
break;
case HDMI_LEFT_J:
audio.i2s_format = I2S_FORMAT_LEFT_J;
break;
case HDMI_RIGHT_J:
audio.i2s_format = I2S_FORMAT_RIGHT_J;
break;
case HDMI_SPDIF:
for (i = 0; i < ARRAY_SIZE(priv->audio_port); i++)
if (priv->audio_port[i].format == AFMT_SPDIF)
audio.config = priv->audio_port[i].config;
audio.format = AFMT_SPDIF;
audio.i2s_format = 0;
break;
default:
dev_err(dev, "%s: Invalid format %d\n", __func__, daifmt->fmt);
return -EINVAL;
}
if (audio.config == 0) {
dev_err(dev, "%s: No audio configuration found\n", __func__);
if (!spdif &&
(daifmt->bit_clk_inv || daifmt->frame_clk_inv ||
daifmt->bit_clk_master || daifmt->frame_clk_master)) {
dev_err(dev, "%s: Bad flags %d %d %d %d\n", __func__,
daifmt->bit_clk_inv, daifmt->frame_clk_inv,
daifmt->bit_clk_master,
daifmt->frame_clk_master);
return -EINVAL;
}
mutex_lock(&priv->audio_mutex);
if (priv->supports_infoframes && priv->sink_has_audio)
ret = tda998x_configure_audio(priv, &audio);
else
ret = 0;
ret = tda998x_derive_routing(priv, &audio, AUDIO_ROUTE_I2S + spdif);
if (ret < 0)
return ret;
if (ret == 0)
priv->audio_params = audio;
bclk_ratio = spdif ? 64 : params->sample_width * 2;
ret = tda998x_derive_cts_n(priv, &audio, bclk_ratio);
if (ret < 0)
return ret;
mutex_lock(&priv->audio_mutex);
priv->audio = audio;
if (priv->supports_infoframes && priv->sink_has_audio)
tda998x_configure_audio(priv);
mutex_unlock(&priv->audio_mutex);
return ret;
return 0;
}
static void tda998x_audio_shutdown(struct device *dev, void *data)
@ -1042,8 +1137,7 @@ static void tda998x_audio_shutdown(struct device *dev, void *data)
mutex_lock(&priv->audio_mutex);
reg_write(priv, REG_ENA_AP, 0);
priv->audio_params.format = AFMT_UNUSED;
priv->audio.ena_ap = 0;
mutex_unlock(&priv->audio_mutex);
}
@ -1087,16 +1181,11 @@ static int tda998x_audio_codec_init(struct tda998x_priv *priv,
.ops = &audio_codec_ops,
.max_i2s_channels = 2,
};
int i;
for (i = 0; i < ARRAY_SIZE(priv->audio_port); i++) {
if (priv->audio_port[i].format == AFMT_I2S &&
priv->audio_port[i].config != 0)
codec_data.i2s = 1;
if (priv->audio_port[i].format == AFMT_SPDIF &&
priv->audio_port[i].config != 0)
codec_data.spdif = 1;
}
if (priv->audio_port_enable[AUDIO_ROUTE_I2S])
codec_data.i2s = 1;
if (priv->audio_port_enable[AUDIO_ROUTE_SPDIF])
codec_data.spdif = 1;
priv->audio_pdev = platform_device_register_data(
dev, HDMI_CODEC_DRV_NAME, PLATFORM_DEVID_AUTO,
@ -1351,7 +1440,17 @@ static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
u16 vwin1_line_s, vwin1_line_e;
u16 vwin2_line_s, vwin2_line_e;
u16 de_pix_s, de_pix_e;
u8 reg, div, rep;
u8 reg, div, rep, sel_clk;
/*
* Since we are "computer" like, our source invariably produces
* full-range RGB. If the monitor supports full-range, then use
* it, otherwise reduce to limited-range.
*/
priv->rgb_quant_range =
priv->connector.display_info.rgb_quant_range_selectable ?
HDMI_QUANTIZATION_RANGE_FULL :
drm_default_rgb_quant_range(adjusted_mode);
/*
* Internally TDA998x is using ITU-R BT.656 style sync but
@ -1414,7 +1513,16 @@ static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
(mode->vsync_end - mode->vsync_start)/2;
}
tmds_clock = mode->clock;
/*
* Select pixel repeat depending on the double-clock flag
* (which means we have to repeat each pixel once.)
*/
rep = mode->flags & DRM_MODE_FLAG_DBLCLK ? 1 : 0;
sel_clk = SEL_CLK_ENA_SC_CLK | SEL_CLK_SEL_CLK1 |
SEL_CLK_SEL_VRF_CLK(rep ? 2 : 0);
/* the TMDS clock is scaled up by the pixel repeat */
tmds_clock = mode->clock * (1 + rep);
/*
* The divisor is power-of-2. The TDA9983B datasheet gives
@ -1430,6 +1538,8 @@ static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
mutex_lock(&priv->audio_mutex);
priv->tmds_clock = tmds_clock;
/* mute the audio FIFO: */
reg_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
@ -1452,19 +1562,30 @@ static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
reg_write(priv, REG_SERIALIZER, 0);
reg_write(priv, REG_HVF_CNTRL_1, HVF_CNTRL_1_VQR(0));
/* TODO enable pixel repeat for pixel rates less than 25Msamp/s */
rep = 0;
reg_write(priv, REG_RPT_CNTRL, 0);
reg_write(priv, REG_SEL_CLK, SEL_CLK_SEL_VRF_CLK(0) |
SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
reg_write(priv, REG_RPT_CNTRL, RPT_CNTRL_REPEAT(rep));
reg_write(priv, REG_SEL_CLK, sel_clk);
reg_write(priv, REG_PLL_SERIAL_2, PLL_SERIAL_2_SRL_NOSC(div) |
PLL_SERIAL_2_SRL_PR(rep));
/* set color matrix bypass flag: */
reg_write(priv, REG_MAT_CONTRL, MAT_CONTRL_MAT_BP |
MAT_CONTRL_MAT_SC(1));
reg_set(priv, REG_FEAT_POWERDOWN, FEAT_POWERDOWN_CSC);
/* set color matrix according to output rgb quant range */
if (priv->rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED) {
static u8 tda998x_full_to_limited_range[] = {
MAT_CONTRL_MAT_SC(2),
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x03, 0x6f, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x03, 0x6f, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x03, 0x6f,
0x00, 0x40, 0x00, 0x40, 0x00, 0x40
};
reg_clear(priv, REG_FEAT_POWERDOWN, FEAT_POWERDOWN_CSC);
reg_write_range(priv, REG_MAT_CONTRL,
tda998x_full_to_limited_range,
sizeof(tda998x_full_to_limited_range));
} else {
reg_write(priv, REG_MAT_CONTRL, MAT_CONTRL_MAT_BP |
MAT_CONTRL_MAT_SC(1));
reg_set(priv, REG_FEAT_POWERDOWN, FEAT_POWERDOWN_CSC);
}
/* set BIAS tmds value: */
reg_write(priv, REG_ANA_GENERAL, 0x09);
@ -1525,8 +1646,6 @@ static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
/* must be last register set: */
reg_write(priv, REG_TBG_CNTRL_0, 0);
priv->tmds_clock = adjusted_mode->clock;
/* CEA-861B section 6 says that:
* CEA version 1 (CEA-861) has no support for infoframes.
* CEA version 2 (CEA-861A) supports version 1 AVI infoframes,
@ -1548,10 +1667,10 @@ static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
reg_set(priv, REG_TX33, TX33_HDMI);
tda998x_write_avi(priv, adjusted_mode);
tda998x_write_vsi(priv, adjusted_mode);
if (priv->audio_params.format != AFMT_UNUSED &&
priv->sink_has_audio)
tda998x_configure_audio(priv, &priv->audio_params);
if (priv->sink_has_audio)
tda998x_configure_audio(priv);
}
mutex_unlock(&priv->audio_mutex);
@ -1580,7 +1699,7 @@ static int tda998x_get_audio_ports(struct tda998x_priv *priv,
return 0;
size /= sizeof(u32);
if (size > 2 * ARRAY_SIZE(priv->audio_port) || size % 2 != 0) {
if (size > 2 * ARRAY_SIZE(priv->audio_port_enable) || size % 2 != 0) {
dev_err(&priv->hdmi->dev,
"Bad number of elements in audio-ports dt-property\n");
return -EINVAL;
@ -1589,29 +1708,42 @@ static int tda998x_get_audio_ports(struct tda998x_priv *priv,
size /= 2;
for (i = 0; i < size; i++) {
unsigned int route;
u8 afmt = be32_to_cpup(&port_data[2*i]);
u8 ena_ap = be32_to_cpup(&port_data[2*i+1]);
if (afmt != AFMT_SPDIF && afmt != AFMT_I2S) {
switch (afmt) {
case AFMT_I2S:
route = AUDIO_ROUTE_I2S;
break;
case AFMT_SPDIF:
route = AUDIO_ROUTE_SPDIF;
break;
default:
dev_err(&priv->hdmi->dev,
"Bad audio format %u\n", afmt);
return -EINVAL;
}
priv->audio_port[i].format = afmt;
priv->audio_port[i].config = ena_ap;
}
if (!ena_ap) {
dev_err(&priv->hdmi->dev, "invalid zero port config\n");
continue;
}
if (priv->audio_port[0].format == priv->audio_port[1].format) {
dev_err(&priv->hdmi->dev,
"There can only be on I2S port and one SPDIF port\n");
return -EINVAL;
if (priv->audio_port_enable[route]) {
dev_err(&priv->hdmi->dev,
"%s format already configured\n",
route == AUDIO_ROUTE_SPDIF ? "SPDIF" : "I2S");
return -EINVAL;
}
priv->audio_port_enable[route] = ena_ap;
}
return 0;
}
static void tda998x_set_config(struct tda998x_priv *priv,
const struct tda998x_encoder_params *p)
static int tda998x_set_config(struct tda998x_priv *priv,
const struct tda998x_encoder_params *p)
{
priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(p->swap_a) |
(p->mirr_a ? VIP_CNTRL_0_MIRR_A : 0) |
@ -1626,7 +1758,26 @@ static void tda998x_set_config(struct tda998x_priv *priv,
VIP_CNTRL_2_SWAP_F(p->swap_f) |
(p->mirr_f ? VIP_CNTRL_2_MIRR_F : 0);
priv->audio_params = p->audio_params;
if (p->audio_params.format != AFMT_UNUSED) {
unsigned int ratio, route;
bool spdif = p->audio_params.format == AFMT_SPDIF;
route = AUDIO_ROUTE_I2S + spdif;
priv->audio.route = &tda998x_audio_route[route];
priv->audio.cea = p->audio_params.cea;
priv->audio.sample_rate = p->audio_params.sample_rate;
memcpy(priv->audio.status, p->audio_params.status,
min(sizeof(priv->audio.status),
sizeof(p->audio_params.status)));
priv->audio.ena_ap = p->audio_params.config;
priv->audio.i2s_format = I2S_FORMAT_PHILIPS;
ratio = spdif ? 64 : p->audio_params.sample_width * 2;
return tda998x_derive_cts_n(priv, &priv->audio, ratio);
}
return 0;
}
static void tda998x_destroy(struct device *dev)
@ -1825,10 +1976,13 @@ static int tda998x_create(struct device *dev)
if (ret)
goto fail;
if (priv->audio_port[0].format != AFMT_UNUSED)
if (priv->audio_port_enable[AUDIO_ROUTE_I2S] ||
priv->audio_port_enable[AUDIO_ROUTE_SPDIF])
tda998x_audio_codec_init(priv, &client->dev);
} else if (dev->platform_data) {
tda998x_set_config(priv, dev->platform_data);
ret = tda998x_set_config(priv, dev->platform_data);
if (ret)
goto fail;
}
priv->bridge.funcs = &tda998x_bridge_funcs;