diff mbox series

[v8,2/6] drm: Rename struct edp_vsc_psr to struct dp_sdp

Message ID 20190520092054.30724-3-gwan-gyeong.mun@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/dp: Support for DP YCbCr4:2:0 outputs | expand

Commit Message

Gwan-gyeong Mun May 20, 2019, 9:20 a.m. UTC
VSC SDP Payload for PSR is one of data block type of SDP (Secondaray Data
Packet). In order to generalize SDP packet structure name, it renames
struct edp_vsc_psr to struct dp_sdp. And each SDP data blocks have
different usages, each SDP type has different reserved data blocks and
Video_Stream_Configuration Extension VESA SDP might use all of Data Blocks
as Extended INFORFRAME Data Byte. so it makes Data Block variables as
array type. And it adds comments of details of DB of VSC SDP Payload
for Pixel Encoding/Colorimetry Format. This comments follows DP 1.4a spec,
section 2.2.5.7.5, chapter "VSC SDP Payload for Pixel Encoding/Colorimetry
Format".

v7: Addressed review comments from Ville.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
 .../drm/bridge/analogix/analogix_dp_core.c    | 12 +++----
 .../drm/bridge/analogix/analogix_dp_core.h    |  2 +-
 .../gpu/drm/bridge/analogix/analogix_dp_reg.c | 10 +++---
 drivers/gpu/drm/i915/intel_psr.c              |  2 +-
 include/drm/drm_dp_helper.h                   | 33 +++++++++++++------
 5 files changed, 36 insertions(+), 23 deletions(-)

Comments

Jani Nikula May 21, 2019, 6:44 a.m. UTC | #1
On Mon, 20 May 2019, Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> wrote:
> VSC SDP Payload for PSR is one of data block type of SDP (Secondaray Data
> Packet). In order to generalize SDP packet structure name, it renames
> struct edp_vsc_psr to struct dp_sdp. And each SDP data blocks have
> different usages, each SDP type has different reserved data blocks and
> Video_Stream_Configuration Extension VESA SDP might use all of Data Blocks
> as Extended INFORFRAME Data Byte. so it makes Data Block variables as
> array type. And it adds comments of details of DB of VSC SDP Payload
> for Pixel Encoding/Colorimetry Format. This comments follows DP 1.4a spec,
> section 2.2.5.7.5, chapter "VSC SDP Payload for Pixel Encoding/Colorimetry
> Format".
>
> v7: Addressed review comments from Ville.
>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Andrzej, Laurent -

Seven versions of the patch and looks like we've failed to loop you in
on this. Sorry. May I have your ack on the patch please?

Is it too much to ask to have this merged via drm-intel along with the
rest of the series?

BR,
Jani.


> ---
>  .../drm/bridge/analogix/analogix_dp_core.c    | 12 +++----
>  .../drm/bridge/analogix/analogix_dp_core.h    |  2 +-
>  .../gpu/drm/bridge/analogix/analogix_dp_reg.c | 10 +++---
>  drivers/gpu/drm/i915/intel_psr.c              |  2 +-
>  include/drm/drm_dp_helper.h                   | 33 +++++++++++++------
>  5 files changed, 36 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> index 225f5e5dd69b..d1c2659d0cce 100644
> --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> @@ -115,7 +115,7 @@ EXPORT_SYMBOL_GPL(analogix_dp_psr_enabled);
>  
>  int analogix_dp_enable_psr(struct analogix_dp_device *dp)
>  {
> -	struct edp_vsc_psr psr_vsc;
> +	struct dp_sdp psr_vsc;
>  
>  	if (!dp->psr_enable)
>  		return 0;
> @@ -127,8 +127,8 @@ int analogix_dp_enable_psr(struct analogix_dp_device *dp)
>  	psr_vsc.sdp_header.HB2 = 0x2;
>  	psr_vsc.sdp_header.HB3 = 0x8;
>  
> -	psr_vsc.DB0 = 0;
> -	psr_vsc.DB1 = EDP_VSC_PSR_STATE_ACTIVE | EDP_VSC_PSR_CRC_VALUES_VALID;
> +	psr_vsc.DB[0] = 0;
> +	psr_vsc.DB[1] = EDP_VSC_PSR_STATE_ACTIVE | EDP_VSC_PSR_CRC_VALUES_VALID;
>  
>  	return analogix_dp_send_psr_spd(dp, &psr_vsc, true);
>  }
> @@ -136,7 +136,7 @@ EXPORT_SYMBOL_GPL(analogix_dp_enable_psr);
>  
>  int analogix_dp_disable_psr(struct analogix_dp_device *dp)
>  {
> -	struct edp_vsc_psr psr_vsc;
> +	struct dp_sdp psr_vsc;
>  	int ret;
>  
>  	if (!dp->psr_enable)
> @@ -149,8 +149,8 @@ int analogix_dp_disable_psr(struct analogix_dp_device *dp)
>  	psr_vsc.sdp_header.HB2 = 0x2;
>  	psr_vsc.sdp_header.HB3 = 0x8;
>  
> -	psr_vsc.DB0 = 0;
> -	psr_vsc.DB1 = 0;
> +	psr_vsc.DB[0] = 0;
> +	psr_vsc.DB[1] = 0;
>  
>  	ret = drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER, DP_SET_POWER_D0);
>  	if (ret != 1) {
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> index 769255dc6e99..3e5fe90edf71 100644
> --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> @@ -254,7 +254,7 @@ void analogix_dp_enable_scrambling(struct analogix_dp_device *dp);
>  void analogix_dp_disable_scrambling(struct analogix_dp_device *dp);
>  void analogix_dp_enable_psr_crc(struct analogix_dp_device *dp);
>  int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
> -			     struct edp_vsc_psr *vsc, bool blocking);
> +			     struct dp_sdp *vsc, bool blocking);
>  ssize_t analogix_dp_transfer(struct analogix_dp_device *dp,
>  			     struct drm_dp_aux_msg *msg);
>  
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> index a5f2763d72e4..f591810ef1be 100644
> --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> @@ -1041,7 +1041,7 @@ static ssize_t analogix_dp_get_psr_status(struct analogix_dp_device *dp)
>  }
>  
>  int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
> -			     struct edp_vsc_psr *vsc, bool blocking)
> +			     struct dp_sdp *vsc, bool blocking)
>  {
>  	unsigned int val;
>  	int ret;
> @@ -1069,8 +1069,8 @@ int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
>  	writel(0x5D, dp->reg_base + ANALOGIX_DP_SPD_PB3);
>  
>  	/* configure DB0 / DB1 values */
> -	writel(vsc->DB0, dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB0);
> -	writel(vsc->DB1, dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB1);
> +	writel(vsc->DB[0], dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB0);
> +	writel(vsc->DB[1], dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB1);
>  
>  	/* set reuse spd inforframe */
>  	val = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
> @@ -1092,8 +1092,8 @@ int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
>  
>  	ret = readx_poll_timeout(analogix_dp_get_psr_status, dp, psr_status,
>  		psr_status >= 0 &&
> -		((vsc->DB1 && psr_status == DP_PSR_SINK_ACTIVE_RFB) ||
> -		(!vsc->DB1 && psr_status == DP_PSR_SINK_INACTIVE)), 1500,
> +		((vsc->DB[1] && psr_status == DP_PSR_SINK_ACTIVE_RFB) ||
> +		(!vsc->DB[1] && psr_status == DP_PSR_SINK_INACTIVE)), 1500,
>  		DP_TIMEOUT_PSR_LOOP_MS * 1000);
>  	if (ret) {
>  		dev_warn(dp->dev, "Failed to apply PSR %d\n", ret);
> diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
> index 2a547a128a37..01ca502099df 100644
> --- a/drivers/gpu/drm/i915/intel_psr.c
> +++ b/drivers/gpu/drm/i915/intel_psr.c
> @@ -342,7 +342,7 @@ static void intel_psr_setup_vsc(struct intel_dp *intel_dp,
>  {
>  	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
>  	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
> -	struct edp_vsc_psr psr_vsc;
> +	struct dp_sdp psr_vsc;
>  
>  	if (dev_priv->psr.psr2_enabled) {
>  		/* Prepare VSC Header for SU as per EDP 1.4 spec, Table 6.11 */
> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
> index 97ce790a5b5a..8d7c47e46f2d 100644
> --- a/include/drm/drm_dp_helper.h
> +++ b/include/drm/drm_dp_helper.h
> @@ -1083,17 +1083,30 @@ struct dp_sdp_header {
>  #define EDP_SDP_HEADER_VALID_PAYLOAD_BYTES	0x1F
>  #define DP_SDP_PPS_HEADER_PAYLOAD_BYTES_MINUS_1 0x7F
>  
> -struct edp_vsc_psr {
> +/**
> + * struct dp_sdp - DP secondary data packet
> + * @sdp_header: DP secondary data packet header
> + * @DB: DP secondaray data packet data blocks
> + * VSC SDP Payload for PSR
> + * DB[0]: Stereo Interface
> + * DB[1]: 0 - PSR State; 1 - Update RFB; 2 - CRC Valid
> + * DB[2]: CRC value bits 7:0 of the R or Cr component
> + * DB[3]: CRC value bits 15:8 of the R or Cr component
> + * DB[4]: CRC value bits 7:0 of the G or Y component
> + * DB[5]: CRC value bits 15:8 of the G or Y component
> + * DB[6]: CRC value bits 7:0 of the B or Cb component
> + * DB[7]: CRC value bits 15:8 of the B or Cb component
> + * DB[8] - DB[31]: Reserved
> + * VSC SDP Payload for Pixel Encoding/Colorimetry Format
> + * DB[0] - DB[15]: Reserved
> + * DB[16]: Pixel Encoding and Colorimetry Formats
> + * DB[17]: Dynamic Range and Component Bit Depth
> + * DB[18]: Content Type
> + * DB[19] - DB[31]: Reserved
> + */
> +struct dp_sdp {
>  	struct dp_sdp_header sdp_header;
> -	u8 DB0; /* Stereo Interface */
> -	u8 DB1; /* 0 - PSR State; 1 - Update RFB; 2 - CRC Valid */
> -	u8 DB2; /* CRC value bits 7:0 of the R or Cr component */
> -	u8 DB3; /* CRC value bits 15:8 of the R or Cr component */
> -	u8 DB4; /* CRC value bits 7:0 of the G or Y component */
> -	u8 DB5; /* CRC value bits 15:8 of the G or Y component */
> -	u8 DB6; /* CRC value bits 7:0 of the B or Cb component */
> -	u8 DB7; /* CRC value bits 15:8 of the B or Cb component */
> -	u8 DB8_31[24]; /* Reserved */
> +	u8 DB[32];
>  } __packed;
>  
>  #define EDP_VSC_PSR_STATE_ACTIVE	(1<<0)
Laurent Pinchart May 21, 2019, 10:14 a.m. UTC | #2
Hello Jani,

On Tue, May 21, 2019 at 09:44:04AM +0300, Jani Nikula wrote:
> On Mon, 20 May 2019, Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> wrote:
> > VSC SDP Payload for PSR is one of data block type of SDP (Secondaray Data
> > Packet). In order to generalize SDP packet structure name, it renames
> > struct edp_vsc_psr to struct dp_sdp. And each SDP data blocks have
> > different usages, each SDP type has different reserved data blocks and
> > Video_Stream_Configuration Extension VESA SDP might use all of Data Blocks
> > as Extended INFORFRAME Data Byte. so it makes Data Block variables as
> > array type. And it adds comments of details of DB of VSC SDP Payload
> > for Pixel Encoding/Colorimetry Format. This comments follows DP 1.4a spec,
> > section 2.2.5.7.5, chapter "VSC SDP Payload for Pixel Encoding/Colorimetry
> > Format".
> >
> > v7: Addressed review comments from Ville.
> >
> > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
> > Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> 
> Andrzej, Laurent -
> 
> Seven versions of the patch and looks like we've failed to loop you in
> on this. Sorry. May I have your ack on the patch please?

Please see below for one comment.

> Is it too much to ask to have this merged via drm-intel along with the
> rest of the series?

Provided the potential conflicts are handled I have no issue with that.

> > ---
> >  .../drm/bridge/analogix/analogix_dp_core.c    | 12 +++----
> >  .../drm/bridge/analogix/analogix_dp_core.h    |  2 +-
> >  .../gpu/drm/bridge/analogix/analogix_dp_reg.c | 10 +++---
> >  drivers/gpu/drm/i915/intel_psr.c              |  2 +-
> >  include/drm/drm_dp_helper.h                   | 33 +++++++++++++------
> >  5 files changed, 36 insertions(+), 23 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> > index 225f5e5dd69b..d1c2659d0cce 100644
> > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> > @@ -115,7 +115,7 @@ EXPORT_SYMBOL_GPL(analogix_dp_psr_enabled);
> >  
> >  int analogix_dp_enable_psr(struct analogix_dp_device *dp)
> >  {
> > -	struct edp_vsc_psr psr_vsc;
> > +	struct dp_sdp psr_vsc;
> >  
> >  	if (!dp->psr_enable)
> >  		return 0;
> > @@ -127,8 +127,8 @@ int analogix_dp_enable_psr(struct analogix_dp_device *dp)
> >  	psr_vsc.sdp_header.HB2 = 0x2;
> >  	psr_vsc.sdp_header.HB3 = 0x8;
> >  
> > -	psr_vsc.DB0 = 0;
> > -	psr_vsc.DB1 = EDP_VSC_PSR_STATE_ACTIVE | EDP_VSC_PSR_CRC_VALUES_VALID;
> > +	psr_vsc.DB[0] = 0;
> > +	psr_vsc.DB[1] = EDP_VSC_PSR_STATE_ACTIVE | EDP_VSC_PSR_CRC_VALUES_VALID;
> >  
> >  	return analogix_dp_send_psr_spd(dp, &psr_vsc, true);
> >  }
> > @@ -136,7 +136,7 @@ EXPORT_SYMBOL_GPL(analogix_dp_enable_psr);
> >  
> >  int analogix_dp_disable_psr(struct analogix_dp_device *dp)
> >  {
> > -	struct edp_vsc_psr psr_vsc;
> > +	struct dp_sdp psr_vsc;
> >  	int ret;
> >  
> >  	if (!dp->psr_enable)
> > @@ -149,8 +149,8 @@ int analogix_dp_disable_psr(struct analogix_dp_device *dp)
> >  	psr_vsc.sdp_header.HB2 = 0x2;
> >  	psr_vsc.sdp_header.HB3 = 0x8;
> >  
> > -	psr_vsc.DB0 = 0;
> > -	psr_vsc.DB1 = 0;
> > +	psr_vsc.DB[0] = 0;
> > +	psr_vsc.DB[1] = 0;
> >  
> >  	ret = drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER, DP_SET_POWER_D0);
> >  	if (ret != 1) {
> > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> > index 769255dc6e99..3e5fe90edf71 100644
> > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> > @@ -254,7 +254,7 @@ void analogix_dp_enable_scrambling(struct analogix_dp_device *dp);
> >  void analogix_dp_disable_scrambling(struct analogix_dp_device *dp);
> >  void analogix_dp_enable_psr_crc(struct analogix_dp_device *dp);
> >  int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
> > -			     struct edp_vsc_psr *vsc, bool blocking);
> > +			     struct dp_sdp *vsc, bool blocking);
> >  ssize_t analogix_dp_transfer(struct analogix_dp_device *dp,
> >  			     struct drm_dp_aux_msg *msg);
> >  
> > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> > index a5f2763d72e4..f591810ef1be 100644
> > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> > @@ -1041,7 +1041,7 @@ static ssize_t analogix_dp_get_psr_status(struct analogix_dp_device *dp)
> >  }
> >  
> >  int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
> > -			     struct edp_vsc_psr *vsc, bool blocking)
> > +			     struct dp_sdp *vsc, bool blocking)
> >  {
> >  	unsigned int val;
> >  	int ret;
> > @@ -1069,8 +1069,8 @@ int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
> >  	writel(0x5D, dp->reg_base + ANALOGIX_DP_SPD_PB3);
> >  
> >  	/* configure DB0 / DB1 values */
> > -	writel(vsc->DB0, dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB0);
> > -	writel(vsc->DB1, dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB1);
> > +	writel(vsc->DB[0], dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB0);
> > +	writel(vsc->DB[1], dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB1);
> >  
> >  	/* set reuse spd inforframe */
> >  	val = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
> > @@ -1092,8 +1092,8 @@ int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
> >  
> >  	ret = readx_poll_timeout(analogix_dp_get_psr_status, dp, psr_status,
> >  		psr_status >= 0 &&
> > -		((vsc->DB1 && psr_status == DP_PSR_SINK_ACTIVE_RFB) ||
> > -		(!vsc->DB1 && psr_status == DP_PSR_SINK_INACTIVE)), 1500,
> > +		((vsc->DB[1] && psr_status == DP_PSR_SINK_ACTIVE_RFB) ||
> > +		(!vsc->DB[1] && psr_status == DP_PSR_SINK_INACTIVE)), 1500,
> >  		DP_TIMEOUT_PSR_LOOP_MS * 1000);
> >  	if (ret) {
> >  		dev_warn(dp->dev, "Failed to apply PSR %d\n", ret);
> > diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
> > index 2a547a128a37..01ca502099df 100644
> > --- a/drivers/gpu/drm/i915/intel_psr.c
> > +++ b/drivers/gpu/drm/i915/intel_psr.c
> > @@ -342,7 +342,7 @@ static void intel_psr_setup_vsc(struct intel_dp *intel_dp,
> >  {
> >  	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
> >  	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
> > -	struct edp_vsc_psr psr_vsc;
> > +	struct dp_sdp psr_vsc;
> >  
> >  	if (dev_priv->psr.psr2_enabled) {
> >  		/* Prepare VSC Header for SU as per EDP 1.4 spec, Table 6.11 */
> > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
> > index 97ce790a5b5a..8d7c47e46f2d 100644
> > --- a/include/drm/drm_dp_helper.h
> > +++ b/include/drm/drm_dp_helper.h
> > @@ -1083,17 +1083,30 @@ struct dp_sdp_header {
> >  #define EDP_SDP_HEADER_VALID_PAYLOAD_BYTES	0x1F
> >  #define DP_SDP_PPS_HEADER_PAYLOAD_BYTES_MINUS_1 0x7F
> >  
> > -struct edp_vsc_psr {
> > +/**
> > + * struct dp_sdp - DP secondary data packet
> > + * @sdp_header: DP secondary data packet header
> > + * @DB: DP secondaray data packet data blocks
> > + * VSC SDP Payload for PSR
> > + * DB[0]: Stereo Interface
> > + * DB[1]: 0 - PSR State; 1 - Update RFB; 2 - CRC Valid
> > + * DB[2]: CRC value bits 7:0 of the R or Cr component
> > + * DB[3]: CRC value bits 15:8 of the R or Cr component
> > + * DB[4]: CRC value bits 7:0 of the G or Y component
> > + * DB[5]: CRC value bits 15:8 of the G or Y component
> > + * DB[6]: CRC value bits 7:0 of the B or Cb component
> > + * DB[7]: CRC value bits 15:8 of the B or Cb component
> > + * DB[8] - DB[31]: Reserved
> > + * VSC SDP Payload for Pixel Encoding/Colorimetry Format
> > + * DB[0] - DB[15]: Reserved
> > + * DB[16]: Pixel Encoding and Colorimetry Formats
> > + * DB[17]: Dynamic Range and Component Bit Depth
> > + * DB[18]: Content Type
> > + * DB[19] - DB[31]: Reserved
> > + */
> > +struct dp_sdp {
> >  	struct dp_sdp_header sdp_header;
> > -	u8 DB0; /* Stereo Interface */
> > -	u8 DB1; /* 0 - PSR State; 1 - Update RFB; 2 - CRC Valid */
> > -	u8 DB2; /* CRC value bits 7:0 of the R or Cr component */
> > -	u8 DB3; /* CRC value bits 15:8 of the R or Cr component */
> > -	u8 DB4; /* CRC value bits 7:0 of the G or Y component */
> > -	u8 DB5; /* CRC value bits 15:8 of the G or Y component */
> > -	u8 DB6; /* CRC value bits 7:0 of the B or Cb component */
> > -	u8 DB7; /* CRC value bits 15:8 of the B or Cb component */
> > -	u8 DB8_31[24]; /* Reserved */
> > +	u8 DB[32];

While at it, would it make sense to rename DB to db ?

Apart from that,

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> >  } __packed;
> >  
> >  #define EDP_VSC_PSR_STATE_ACTIVE	(1<<0)
> 
> -- 
> Jani Nikula, Intel Open Source Graphics Center
Gwan-gyeong Mun May 21, 2019, 12:07 p.m. UTC | #3
On Tue, 2019-05-21 at 13:14 +0300, Laurent Pinchart wrote:
> Hello Jani,
> 
> On Tue, May 21, 2019 at 09:44:04AM +0300, Jani Nikula wrote:
> > On Mon, 20 May 2019, Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
> > wrote:
> > > VSC SDP Payload for PSR is one of data block type of SDP
> > > (Secondaray Data
> > > Packet). In order to generalize SDP packet structure name, it
> > > renames
> > > struct edp_vsc_psr to struct dp_sdp. And each SDP data blocks
> > > have
> > > different usages, each SDP type has different reserved data
> > > blocks and
> > > Video_Stream_Configuration Extension VESA SDP might use all of
> > > Data Blocks
> > > as Extended INFORFRAME Data Byte. so it makes Data Block
> > > variables as
> > > array type. And it adds comments of details of DB of VSC SDP
> > > Payload
> > > for Pixel Encoding/Colorimetry Format. This comments follows DP
> > > 1.4a spec,
> > > section 2.2.5.7.5, chapter "VSC SDP Payload for Pixel
> > > Encoding/Colorimetry
> > > Format".
> > > 
> > > v7: Addressed review comments from Ville.
> > > 
> > > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > > Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
> > > Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com
> > > >
> > 
> > Andrzej, Laurent -
> > 
> > Seven versions of the patch and looks like we've failed to loop you
> > in
> > on this. Sorry. May I have your ack on the patch please?
> 
> Please see below for one comment.
> 
> > Is it too much to ask to have this merged via drm-intel along with
> > the
> > rest of the series?
> 
> Provided the potential conflicts are handled I have no issue with
> that.
> 
Andrzej, Laurent -

I am Sorry that I missed you on previous loops.
And thank you for reviewing the series.

Jani,
Thank you for asking the series to Andrzej and Laurent.
> > > ---
> > >  .../drm/bridge/analogix/analogix_dp_core.c    | 12 +++----
> > >  .../drm/bridge/analogix/analogix_dp_core.h    |  2 +-
> > >  .../gpu/drm/bridge/analogix/analogix_dp_reg.c | 10 +++---
> > >  drivers/gpu/drm/i915/intel_psr.c              |  2 +-
> > >  include/drm/drm_dp_helper.h                   | 33
> > > +++++++++++++------
> > >  5 files changed, 36 insertions(+), 23 deletions(-)
> > > 
> > > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> > > b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> > > index 225f5e5dd69b..d1c2659d0cce 100644
> > > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> > > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> > > @@ -115,7 +115,7 @@ EXPORT_SYMBOL_GPL(analogix_dp_psr_enabled);
> > >  
> > >  int analogix_dp_enable_psr(struct analogix_dp_device *dp)
> > >  {
> > > -	struct edp_vsc_psr psr_vsc;
> > > +	struct dp_sdp psr_vsc;
> > >  
> > >  	if (!dp->psr_enable)
> > >  		return 0;
> > > @@ -127,8 +127,8 @@ int analogix_dp_enable_psr(struct
> > > analogix_dp_device *dp)
> > >  	psr_vsc.sdp_header.HB2 = 0x2;
> > >  	psr_vsc.sdp_header.HB3 = 0x8;
> > >  
> > > -	psr_vsc.DB0 = 0;
> > > -	psr_vsc.DB1 = EDP_VSC_PSR_STATE_ACTIVE |
> > > EDP_VSC_PSR_CRC_VALUES_VALID;
> > > +	psr_vsc.DB[0] = 0;
> > > +	psr_vsc.DB[1] = EDP_VSC_PSR_STATE_ACTIVE |
> > > EDP_VSC_PSR_CRC_VALUES_VALID;
> > >  
> > >  	return analogix_dp_send_psr_spd(dp, &psr_vsc, true);
> > >  }
> > > @@ -136,7 +136,7 @@ EXPORT_SYMBOL_GPL(analogix_dp_enable_psr);
> > >  
> > >  int analogix_dp_disable_psr(struct analogix_dp_device *dp)
> > >  {
> > > -	struct edp_vsc_psr psr_vsc;
> > > +	struct dp_sdp psr_vsc;
> > >  	int ret;
> > >  
> > >  	if (!dp->psr_enable)
> > > @@ -149,8 +149,8 @@ int analogix_dp_disable_psr(struct
> > > analogix_dp_device *dp)
> > >  	psr_vsc.sdp_header.HB2 = 0x2;
> > >  	psr_vsc.sdp_header.HB3 = 0x8;
> > >  
> > > -	psr_vsc.DB0 = 0;
> > > -	psr_vsc.DB1 = 0;
> > > +	psr_vsc.DB[0] = 0;
> > > +	psr_vsc.DB[1] = 0;
> > >  
> > >  	ret = drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER,
> > > DP_SET_POWER_D0);
> > >  	if (ret != 1) {
> > > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> > > b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> > > index 769255dc6e99..3e5fe90edf71 100644
> > > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> > > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> > > @@ -254,7 +254,7 @@ void analogix_dp_enable_scrambling(struct
> > > analogix_dp_device *dp);
> > >  void analogix_dp_disable_scrambling(struct analogix_dp_device
> > > *dp);
> > >  void analogix_dp_enable_psr_crc(struct analogix_dp_device *dp);
> > >  int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
> > > -			     struct edp_vsc_psr *vsc, bool blocking);
> > > +			     struct dp_sdp *vsc, bool blocking);
> > >  ssize_t analogix_dp_transfer(struct analogix_dp_device *dp,
> > >  			     struct drm_dp_aux_msg *msg);
> > >  
> > > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> > > b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> > > index a5f2763d72e4..f591810ef1be 100644
> > > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> > > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> > > @@ -1041,7 +1041,7 @@ static ssize_t
> > > analogix_dp_get_psr_status(struct analogix_dp_device *dp)
> > >  }
> > >  
> > >  int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
> > > -			     struct edp_vsc_psr *vsc, bool blocking)
> > > +			     struct dp_sdp *vsc, bool blocking)
> > >  {
> > >  	unsigned int val;
> > >  	int ret;
> > > @@ -1069,8 +1069,8 @@ int analogix_dp_send_psr_spd(struct
> > > analogix_dp_device *dp,
> > >  	writel(0x5D, dp->reg_base + ANALOGIX_DP_SPD_PB3);
> > >  
> > >  	/* configure DB0 / DB1 values */
> > > -	writel(vsc->DB0, dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB0);
> > > -	writel(vsc->DB1, dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB1);
> > > +	writel(vsc->DB[0], dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB0);
> > > +	writel(vsc->DB[1], dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB1);
> > >  
> > >  	/* set reuse spd inforframe */
> > >  	val = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
> > > @@ -1092,8 +1092,8 @@ int analogix_dp_send_psr_spd(struct
> > > analogix_dp_device *dp,
> > >  
> > >  	ret = readx_poll_timeout(analogix_dp_get_psr_status, dp,
> > > psr_status,
> > >  		psr_status >= 0 &&
> > > -		((vsc->DB1 && psr_status == DP_PSR_SINK_ACTIVE_RFB) ||
> > > -		(!vsc->DB1 && psr_status == DP_PSR_SINK_INACTIVE)),
> > > 1500,
> > > +		((vsc->DB[1] && psr_status == DP_PSR_SINK_ACTIVE_RFB)
> > > ||
> > > +		(!vsc->DB[1] && psr_status == DP_PSR_SINK_INACTIVE)),
> > > 1500,
> > >  		DP_TIMEOUT_PSR_LOOP_MS * 1000);
> > >  	if (ret) {
> > >  		dev_warn(dp->dev, "Failed to apply PSR %d\n", ret);
> > > diff --git a/drivers/gpu/drm/i915/intel_psr.c
> > > b/drivers/gpu/drm/i915/intel_psr.c
> > > index 2a547a128a37..01ca502099df 100644
> > > --- a/drivers/gpu/drm/i915/intel_psr.c
> > > +++ b/drivers/gpu/drm/i915/intel_psr.c
> > > @@ -342,7 +342,7 @@ static void intel_psr_setup_vsc(struct
> > > intel_dp *intel_dp,
> > >  {
> > >  	struct intel_digital_port *intel_dig_port =
> > > dp_to_dig_port(intel_dp);
> > >  	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
> > > -	struct edp_vsc_psr psr_vsc;
> > > +	struct dp_sdp psr_vsc;
> > >  
> > >  	if (dev_priv->psr.psr2_enabled) {
> > >  		/* Prepare VSC Header for SU as per EDP 1.4 spec, Table
> > > 6.11 */
> > > diff --git a/include/drm/drm_dp_helper.h
> > > b/include/drm/drm_dp_helper.h
> > > index 97ce790a5b5a..8d7c47e46f2d 100644
> > > --- a/include/drm/drm_dp_helper.h
> > > +++ b/include/drm/drm_dp_helper.h
> > > @@ -1083,17 +1083,30 @@ struct dp_sdp_header {
> > >  #define EDP_SDP_HEADER_VALID_PAYLOAD_BYTES	0x1F
> > >  #define DP_SDP_PPS_HEADER_PAYLOAD_BYTES_MINUS_1 0x7F
> > >  
> > > -struct edp_vsc_psr {
> > > +/**
> > > + * struct dp_sdp - DP secondary data packet
> > > + * @sdp_header: DP secondary data packet header
> > > + * @DB: DP secondaray data packet data blocks
> > > + * VSC SDP Payload for PSR
> > > + * DB[0]: Stereo Interface
> > > + * DB[1]: 0 - PSR State; 1 - Update RFB; 2 - CRC Valid
> > > + * DB[2]: CRC value bits 7:0 of the R or Cr component
> > > + * DB[3]: CRC value bits 15:8 of the R or Cr component
> > > + * DB[4]: CRC value bits 7:0 of the G or Y component
> > > + * DB[5]: CRC value bits 15:8 of the G or Y component
> > > + * DB[6]: CRC value bits 7:0 of the B or Cb component
> > > + * DB[7]: CRC value bits 15:8 of the B or Cb component
> > > + * DB[8] - DB[31]: Reserved
> > > + * VSC SDP Payload for Pixel Encoding/Colorimetry Format
> > > + * DB[0] - DB[15]: Reserved
> > > + * DB[16]: Pixel Encoding and Colorimetry Formats
> > > + * DB[17]: Dynamic Range and Component Bit Depth
> > > + * DB[18]: Content Type
> > > + * DB[19] - DB[31]: Reserved
> > > + */
> > > +struct dp_sdp {
> > >  	struct dp_sdp_header sdp_header;
> > > -	u8 DB0; /* Stereo Interface */
> > > -	u8 DB1; /* 0 - PSR State; 1 - Update RFB; 2 - CRC Valid */
> > > -	u8 DB2; /* CRC value bits 7:0 of the R or Cr component */
> > > -	u8 DB3; /* CRC value bits 15:8 of the R or Cr component */
> > > -	u8 DB4; /* CRC value bits 7:0 of the G or Y component */
> > > -	u8 DB5; /* CRC value bits 15:8 of the G or Y component */
> > > -	u8 DB6; /* CRC value bits 7:0 of the B or Cb component */
> > > -	u8 DB7; /* CRC value bits 15:8 of the B or Cb component */
> > > -	u8 DB8_31[24]; /* Reserved */
> > > +	u8 DB[32];
> 
> While at it, would it make sense to rename DB to db ?
> 
Okay, I'll update DB to db.

> Apart from that,
> 
> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> 
> > >  } __packed;
> > >  
> > >  #define EDP_VSC_PSR_STATE_ACTIVE	(1<<0)
> > 
> > -- 
> > Jani Nikula, Intel Open Source Graphics Center
diff mbox series

Patch

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 225f5e5dd69b..d1c2659d0cce 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -115,7 +115,7 @@  EXPORT_SYMBOL_GPL(analogix_dp_psr_enabled);
 
 int analogix_dp_enable_psr(struct analogix_dp_device *dp)
 {
-	struct edp_vsc_psr psr_vsc;
+	struct dp_sdp psr_vsc;
 
 	if (!dp->psr_enable)
 		return 0;
@@ -127,8 +127,8 @@  int analogix_dp_enable_psr(struct analogix_dp_device *dp)
 	psr_vsc.sdp_header.HB2 = 0x2;
 	psr_vsc.sdp_header.HB3 = 0x8;
 
-	psr_vsc.DB0 = 0;
-	psr_vsc.DB1 = EDP_VSC_PSR_STATE_ACTIVE | EDP_VSC_PSR_CRC_VALUES_VALID;
+	psr_vsc.DB[0] = 0;
+	psr_vsc.DB[1] = EDP_VSC_PSR_STATE_ACTIVE | EDP_VSC_PSR_CRC_VALUES_VALID;
 
 	return analogix_dp_send_psr_spd(dp, &psr_vsc, true);
 }
@@ -136,7 +136,7 @@  EXPORT_SYMBOL_GPL(analogix_dp_enable_psr);
 
 int analogix_dp_disable_psr(struct analogix_dp_device *dp)
 {
-	struct edp_vsc_psr psr_vsc;
+	struct dp_sdp psr_vsc;
 	int ret;
 
 	if (!dp->psr_enable)
@@ -149,8 +149,8 @@  int analogix_dp_disable_psr(struct analogix_dp_device *dp)
 	psr_vsc.sdp_header.HB2 = 0x2;
 	psr_vsc.sdp_header.HB3 = 0x8;
 
-	psr_vsc.DB0 = 0;
-	psr_vsc.DB1 = 0;
+	psr_vsc.DB[0] = 0;
+	psr_vsc.DB[1] = 0;
 
 	ret = drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER, DP_SET_POWER_D0);
 	if (ret != 1) {
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
index 769255dc6e99..3e5fe90edf71 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
@@ -254,7 +254,7 @@  void analogix_dp_enable_scrambling(struct analogix_dp_device *dp);
 void analogix_dp_disable_scrambling(struct analogix_dp_device *dp);
 void analogix_dp_enable_psr_crc(struct analogix_dp_device *dp);
 int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
-			     struct edp_vsc_psr *vsc, bool blocking);
+			     struct dp_sdp *vsc, bool blocking);
 ssize_t analogix_dp_transfer(struct analogix_dp_device *dp,
 			     struct drm_dp_aux_msg *msg);
 
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
index a5f2763d72e4..f591810ef1be 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
@@ -1041,7 +1041,7 @@  static ssize_t analogix_dp_get_psr_status(struct analogix_dp_device *dp)
 }
 
 int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
-			     struct edp_vsc_psr *vsc, bool blocking)
+			     struct dp_sdp *vsc, bool blocking)
 {
 	unsigned int val;
 	int ret;
@@ -1069,8 +1069,8 @@  int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
 	writel(0x5D, dp->reg_base + ANALOGIX_DP_SPD_PB3);
 
 	/* configure DB0 / DB1 values */
-	writel(vsc->DB0, dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB0);
-	writel(vsc->DB1, dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB1);
+	writel(vsc->DB[0], dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB0);
+	writel(vsc->DB[1], dp->reg_base + ANALOGIX_DP_VSC_SHADOW_DB1);
 
 	/* set reuse spd inforframe */
 	val = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
@@ -1092,8 +1092,8 @@  int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
 
 	ret = readx_poll_timeout(analogix_dp_get_psr_status, dp, psr_status,
 		psr_status >= 0 &&
-		((vsc->DB1 && psr_status == DP_PSR_SINK_ACTIVE_RFB) ||
-		(!vsc->DB1 && psr_status == DP_PSR_SINK_INACTIVE)), 1500,
+		((vsc->DB[1] && psr_status == DP_PSR_SINK_ACTIVE_RFB) ||
+		(!vsc->DB[1] && psr_status == DP_PSR_SINK_INACTIVE)), 1500,
 		DP_TIMEOUT_PSR_LOOP_MS * 1000);
 	if (ret) {
 		dev_warn(dp->dev, "Failed to apply PSR %d\n", ret);
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 2a547a128a37..01ca502099df 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -342,7 +342,7 @@  static void intel_psr_setup_vsc(struct intel_dp *intel_dp,
 {
 	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
-	struct edp_vsc_psr psr_vsc;
+	struct dp_sdp psr_vsc;
 
 	if (dev_priv->psr.psr2_enabled) {
 		/* Prepare VSC Header for SU as per EDP 1.4 spec, Table 6.11 */
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 97ce790a5b5a..8d7c47e46f2d 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -1083,17 +1083,30 @@  struct dp_sdp_header {
 #define EDP_SDP_HEADER_VALID_PAYLOAD_BYTES	0x1F
 #define DP_SDP_PPS_HEADER_PAYLOAD_BYTES_MINUS_1 0x7F
 
-struct edp_vsc_psr {
+/**
+ * struct dp_sdp - DP secondary data packet
+ * @sdp_header: DP secondary data packet header
+ * @DB: DP secondaray data packet data blocks
+ * VSC SDP Payload for PSR
+ * DB[0]: Stereo Interface
+ * DB[1]: 0 - PSR State; 1 - Update RFB; 2 - CRC Valid
+ * DB[2]: CRC value bits 7:0 of the R or Cr component
+ * DB[3]: CRC value bits 15:8 of the R or Cr component
+ * DB[4]: CRC value bits 7:0 of the G or Y component
+ * DB[5]: CRC value bits 15:8 of the G or Y component
+ * DB[6]: CRC value bits 7:0 of the B or Cb component
+ * DB[7]: CRC value bits 15:8 of the B or Cb component
+ * DB[8] - DB[31]: Reserved
+ * VSC SDP Payload for Pixel Encoding/Colorimetry Format
+ * DB[0] - DB[15]: Reserved
+ * DB[16]: Pixel Encoding and Colorimetry Formats
+ * DB[17]: Dynamic Range and Component Bit Depth
+ * DB[18]: Content Type
+ * DB[19] - DB[31]: Reserved
+ */
+struct dp_sdp {
 	struct dp_sdp_header sdp_header;
-	u8 DB0; /* Stereo Interface */
-	u8 DB1; /* 0 - PSR State; 1 - Update RFB; 2 - CRC Valid */
-	u8 DB2; /* CRC value bits 7:0 of the R or Cr component */
-	u8 DB3; /* CRC value bits 15:8 of the R or Cr component */
-	u8 DB4; /* CRC value bits 7:0 of the G or Y component */
-	u8 DB5; /* CRC value bits 15:8 of the G or Y component */
-	u8 DB6; /* CRC value bits 7:0 of the B or Cb component */
-	u8 DB7; /* CRC value bits 15:8 of the B or Cb component */
-	u8 DB8_31[24]; /* Reserved */
+	u8 DB[32];
 } __packed;
 
 #define EDP_VSC_PSR_STATE_ACTIVE	(1<<0)