* [PATCH] drm: bridge: dw-hdmi: add HDMI vendor specific infoframe config @ 2017-03-20 6:10 ` Nickey Yang 2017-03-20 11:08 ` Jose Abreu 2017-03-21 7:47 ` Andrzej Hajda 0 siblings, 2 replies; 4+ messages in thread From: Nickey Yang @ 2017-03-20 6:10 UTC (permalink / raw) To: architt, airlied Cc: linux-kernel, dri-devel, linux-rockchip, dianders, laurent.pinchart+renesas, joabreu, andy.yan, nickey.yang, zhengyang, rmk+kernel, vladimir_zapolskiy Vendor specific infoframe is mandatory for 4K2K resolution. Without this, the HDMI protocol compliance fails. Signed-off-by: Nickey Yang <nickey.yang@rock-chips.com> --- drivers/gpu/drm/bridge/dw-hdmi.c | 50 ++++++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/bridge/dw-hdmi.h | 4 ++++ 2 files changed, 54 insertions(+) diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c index 9a9ec27..79e2e48 100644 --- a/drivers/gpu/drm/bridge/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/dw-hdmi.c @@ -1195,6 +1195,55 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode) hdmi_writeb(hdmi, (frame.right_bar >> 8) & 0xff, HDMI_FC_AVISRB1); } +static void hdmi_config_vendor_specific_infoframe(struct dw_hdmi *hdmi, + struct drm_display_mode *mode) +{ + struct hdmi_vendor_infoframe frame; + u8 buffer[10]; + ssize_t err; + + err = drm_hdmi_vendor_infoframe_from_display_mode(&frame, mode); + if (err) { + dev_err(hdmi->dev, + "Failed to get vendor infoframe from mode: %zd\n", err); + return; + } + + err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer)); + if (!err) { + dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n", + err); + return; + } + hdmi_modb(hdmi, 0 << HDMI_FC_DATAUTO0_VSD_OFFSET, + HDMI_FC_DATAUTO0_VSD_MASK, HDMI_FC_DATAUTO0); + + /* Set the length of HDMI vendor specific InfoFrame payload */ + hdmi_writeb(hdmi, buffer[2], HDMI_FC_VSDSIZE); + + /* Set 24bit IEEE Registration Identifier */ + hdmi_writeb(hdmi, buffer[4], HDMI_FC_VSDIEEEID0); + hdmi_writeb(hdmi, buffer[5], HDMI_FC_VSDIEEEID1); + hdmi_writeb(hdmi, buffer[6], HDMI_FC_VSDIEEEID2); + + /* Set HDMI_Video_Format and HDMI_VIC/3D_Structure */ + hdmi_writeb(hdmi, buffer[7], HDMI_FC_VSDPAYLOAD0); + hdmi_writeb(hdmi, buffer[8], HDMI_FC_VSDPAYLOAD1); + + if (frame.s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) + hdmi_writeb(hdmi, buffer[9], HDMI_FC_VSDPAYLOAD2); + + /* Packet frame interpolation */ + hdmi_writeb(hdmi, 1, HDMI_FC_DATAUTO1); + + /* Auto packets per frame and line spacing */ + hdmi_writeb(hdmi, 0x11, HDMI_FC_DATAUTO2); + + /* Configures the Frame Composer On RDRB mode */ + hdmi_modb(hdmi, 1 << HDMI_FC_DATAUTO0_VSD_OFFSET, + HDMI_FC_DATAUTO0_VSD_MASK, HDMI_FC_DATAUTO0); +} + static void hdmi_av_composer(struct dw_hdmi *hdmi, const struct drm_display_mode *mode) { @@ -1446,6 +1495,7 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode) /* HDMI Initialization Step F - Configure AVI InfoFrame */ hdmi_config_AVI(hdmi, mode); + hdmi_config_vendor_specific_infoframe(hdmi, mode); } else { dev_dbg(hdmi->dev, "%s DVI mode\n", __func__); } diff --git a/drivers/gpu/drm/bridge/dw-hdmi.h b/drivers/gpu/drm/bridge/dw-hdmi.h index 325b0b8..c59f87e 100644 --- a/drivers/gpu/drm/bridge/dw-hdmi.h +++ b/drivers/gpu/drm/bridge/dw-hdmi.h @@ -854,6 +854,10 @@ enum { HDMI_FC_DBGFORCE_FORCEAUDIO = 0x10, HDMI_FC_DBGFORCE_FORCEVIDEO = 0x1, +/* FC_DATAUTO0 field values */ + HDMI_FC_DATAUTO0_VSD_MASK = 0x08, + HDMI_FC_DATAUTO0_VSD_OFFSET = 3, + /* PHY_CONF0 field values */ HDMI_PHY_CONF0_PDZ_MASK = 0x80, HDMI_PHY_CONF0_PDZ_OFFSET = 7, -- 1.9.1 ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] drm: bridge: dw-hdmi: add HDMI vendor specific infoframe config 2017-03-20 6:10 ` [PATCH] drm: bridge: dw-hdmi: add HDMI vendor specific infoframe config Nickey Yang @ 2017-03-20 11:08 ` Jose Abreu 2017-03-21 7:47 ` Andrzej Hajda 1 sibling, 0 replies; 4+ messages in thread From: Jose Abreu @ 2017-03-20 11:08 UTC (permalink / raw) To: Nickey Yang, architt, airlied Cc: linux-kernel, dri-devel, linux-rockchip, dianders, laurent.pinchart+renesas, Jose.Abreu, andy.yan, zhengyang, rmk+kernel, vladimir_zapolskiy Hi Nickey, On 20-03-2017 06:10, Nickey Yang wrote: > Vendor specific infoframe is mandatory for 4K2K resolution. > Without this, the HDMI protocol compliance fails. > > Signed-off-by: Nickey Yang <nickey.yang@rock-chips.com> > --- > drivers/gpu/drm/bridge/dw-hdmi.c | 50 ++++++++++++++++++++++++++++++++++++++++ > drivers/gpu/drm/bridge/dw-hdmi.h | 4 ++++ > 2 files changed, 54 insertions(+) > > diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c > index 9a9ec27..79e2e48 100644 > --- a/drivers/gpu/drm/bridge/dw-hdmi.c > +++ b/drivers/gpu/drm/bridge/dw-hdmi.c > @@ -1195,6 +1195,55 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode) > hdmi_writeb(hdmi, (frame.right_bar >> 8) & 0xff, HDMI_FC_AVISRB1); > } > > +static void hdmi_config_vendor_specific_infoframe(struct dw_hdmi *hdmi, > + struct drm_display_mode *mode) > +{ > + struct hdmi_vendor_infoframe frame; > + u8 buffer[10]; > + ssize_t err; > + > + err = drm_hdmi_vendor_infoframe_from_display_mode(&frame, mode); > + if (err) { > + dev_err(hdmi->dev, > + "Failed to get vendor infoframe from mode: %zd\n", err); I think you should not throw a error here. As you said in commit message this is only for 4K2K modes and drm_hdmi_vendor_infoframe_from_display_mode() only checks for these modes. So just return gracefully and it will be fine. > + return; > + } > + > + err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer)); > + if (!err) { > + dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n", > + err); > + return; > + } > + hdmi_modb(hdmi, 0 << HDMI_FC_DATAUTO0_VSD_OFFSET, > + HDMI_FC_DATAUTO0_VSD_MASK, HDMI_FC_DATAUTO0); Maybe use hdmi_mask_writeb() here? > + > + /* Set the length of HDMI vendor specific InfoFrame payload */ > + hdmi_writeb(hdmi, buffer[2], HDMI_FC_VSDSIZE); > + > + /* Set 24bit IEEE Registration Identifier */ > + hdmi_writeb(hdmi, buffer[4], HDMI_FC_VSDIEEEID0); > + hdmi_writeb(hdmi, buffer[5], HDMI_FC_VSDIEEEID1); > + hdmi_writeb(hdmi, buffer[6], HDMI_FC_VSDIEEEID2); > + > + /* Set HDMI_Video_Format and HDMI_VIC/3D_Structure */ > + hdmi_writeb(hdmi, buffer[7], HDMI_FC_VSDPAYLOAD0); > + hdmi_writeb(hdmi, buffer[8], HDMI_FC_VSDPAYLOAD1); > + > + if (frame.s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) > + hdmi_writeb(hdmi, buffer[9], HDMI_FC_VSDPAYLOAD2); > + > + /* Packet frame interpolation */ > + hdmi_writeb(hdmi, 1, HDMI_FC_DATAUTO1); > + > + /* Auto packets per frame and line spacing */ > + hdmi_writeb(hdmi, 0x11, HDMI_FC_DATAUTO2); > + > + /* Configures the Frame Composer On RDRB mode */ > + hdmi_modb(hdmi, 1 << HDMI_FC_DATAUTO0_VSD_OFFSET, > + HDMI_FC_DATAUTO0_VSD_MASK, HDMI_FC_DATAUTO0); Same here. Best regards, Jose Miguel Abreu > +} > + > static void hdmi_av_composer(struct dw_hdmi *hdmi, > const struct drm_display_mode *mode) > { > @@ -1446,6 +1495,7 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode) > > /* HDMI Initialization Step F - Configure AVI InfoFrame */ > hdmi_config_AVI(hdmi, mode); > + hdmi_config_vendor_specific_infoframe(hdmi, mode); > } else { > dev_dbg(hdmi->dev, "%s DVI mode\n", __func__); > } > diff --git a/drivers/gpu/drm/bridge/dw-hdmi.h b/drivers/gpu/drm/bridge/dw-hdmi.h > index 325b0b8..c59f87e 100644 > --- a/drivers/gpu/drm/bridge/dw-hdmi.h > +++ b/drivers/gpu/drm/bridge/dw-hdmi.h > @@ -854,6 +854,10 @@ enum { > HDMI_FC_DBGFORCE_FORCEAUDIO = 0x10, > HDMI_FC_DBGFORCE_FORCEVIDEO = 0x1, > > +/* FC_DATAUTO0 field values */ > + HDMI_FC_DATAUTO0_VSD_MASK = 0x08, > + HDMI_FC_DATAUTO0_VSD_OFFSET = 3, > + > /* PHY_CONF0 field values */ > HDMI_PHY_CONF0_PDZ_MASK = 0x80, > HDMI_PHY_CONF0_PDZ_OFFSET = 7, ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] drm: bridge: dw-hdmi: add HDMI vendor specific infoframe config 2017-03-20 6:10 ` [PATCH] drm: bridge: dw-hdmi: add HDMI vendor specific infoframe config Nickey Yang 2017-03-20 11:08 ` Jose Abreu @ 2017-03-21 7:47 ` Andrzej Hajda 2017-03-21 7:51 ` Archit Taneja 1 sibling, 1 reply; 4+ messages in thread From: Andrzej Hajda @ 2017-03-21 7:47 UTC (permalink / raw) To: Nickey Yang, architt, airlied Cc: laurent.pinchart+renesas, linux-kernel, dri-devel, dianders, linux-rockchip, joabreu, rmk+kernel, andy.yan, vladimir_zapolskiy, zhengyang On 20.03.2017 07:10, Nickey Yang wrote: > Vendor specific infoframe is mandatory for 4K2K resolution. > Without this, the HDMI protocol compliance fails. > > Signed-off-by: Nickey Yang <nickey.yang@rock-chips.com> > --- > drivers/gpu/drm/bridge/dw-hdmi.c | 50 ++++++++++++++++++++++++++++++++++++++++ > drivers/gpu/drm/bridge/dw-hdmi.h | 4 ++++ > 2 files changed, 54 insertions(+) > > diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c > index 9a9ec27..79e2e48 100644 > --- a/drivers/gpu/drm/bridge/dw-hdmi.c > +++ b/drivers/gpu/drm/bridge/dw-hdmi.c > @@ -1195,6 +1195,55 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode) > hdmi_writeb(hdmi, (frame.right_bar >> 8) & 0xff, HDMI_FC_AVISRB1); > } > > +static void hdmi_config_vendor_specific_infoframe(struct dw_hdmi *hdmi, > + struct drm_display_mode *mode) > +{ > + struct hdmi_vendor_infoframe frame; > + u8 buffer[10]; > + ssize_t err; > + > + err = drm_hdmi_vendor_infoframe_from_display_mode(&frame, mode); > + if (err) { > + dev_err(hdmi->dev, > + "Failed to get vendor infoframe from mode: %zd\n", err); > + return; > + } > + > + err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer)); > + if (!err) { > + dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n", > + err); > + return; > + } AFAIK function returns number of packed bytes or -EINVAL so the check is incorrect, and -EINVAL means that there is no need to generate vendor infoframe, so definitely not dev_err. > + hdmi_modb(hdmi, 0 << HDMI_FC_DATAUTO0_VSD_OFFSET, > + HDMI_FC_DATAUTO0_VSD_MASK, HDMI_FC_DATAUTO0); I see no gain in constructs (0 << HDMI_FC_DATAUTO0_VSD_OFFSET), additionally mask and offset are redundant (mask == 1 << offset), but it seems you follow existing practice, so I do not oppose :) Regards Andrzej > + > + /* Set the length of HDMI vendor specific InfoFrame payload */ > + hdmi_writeb(hdmi, buffer[2], HDMI_FC_VSDSIZE); > + > + /* Set 24bit IEEE Registration Identifier */ > + hdmi_writeb(hdmi, buffer[4], HDMI_FC_VSDIEEEID0); > + hdmi_writeb(hdmi, buffer[5], HDMI_FC_VSDIEEEID1); > + hdmi_writeb(hdmi, buffer[6], HDMI_FC_VSDIEEEID2); > + > + /* Set HDMI_Video_Format and HDMI_VIC/3D_Structure */ > + hdmi_writeb(hdmi, buffer[7], HDMI_FC_VSDPAYLOAD0); > + hdmi_writeb(hdmi, buffer[8], HDMI_FC_VSDPAYLOAD1); > + > + if (frame.s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) > + hdmi_writeb(hdmi, buffer[9], HDMI_FC_VSDPAYLOAD2); > + > + /* Packet frame interpolation */ > + hdmi_writeb(hdmi, 1, HDMI_FC_DATAUTO1); > + > + /* Auto packets per frame and line spacing */ > + hdmi_writeb(hdmi, 0x11, HDMI_FC_DATAUTO2); > + > + /* Configures the Frame Composer On RDRB mode */ > + hdmi_modb(hdmi, 1 << HDMI_FC_DATAUTO0_VSD_OFFSET, > + HDMI_FC_DATAUTO0_VSD_MASK, HDMI_FC_DATAUTO0); > +} > + > static void hdmi_av_composer(struct dw_hdmi *hdmi, > const struct drm_display_mode *mode) > { > @@ -1446,6 +1495,7 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode) > > /* HDMI Initialization Step F - Configure AVI InfoFrame */ > hdmi_config_AVI(hdmi, mode); > + hdmi_config_vendor_specific_infoframe(hdmi, mode); > } else { > dev_dbg(hdmi->dev, "%s DVI mode\n", __func__); > } > diff --git a/drivers/gpu/drm/bridge/dw-hdmi.h b/drivers/gpu/drm/bridge/dw-hdmi.h > index 325b0b8..c59f87e 100644 > --- a/drivers/gpu/drm/bridge/dw-hdmi.h > +++ b/drivers/gpu/drm/bridge/dw-hdmi.h > @@ -854,6 +854,10 @@ enum { > HDMI_FC_DBGFORCE_FORCEAUDIO = 0x10, > HDMI_FC_DBGFORCE_FORCEVIDEO = 0x1, > > +/* FC_DATAUTO0 field values */ > + HDMI_FC_DATAUTO0_VSD_MASK = 0x08, > + HDMI_FC_DATAUTO0_VSD_OFFSET = 3, > + > /* PHY_CONF0 field values */ > HDMI_PHY_CONF0_PDZ_MASK = 0x80, > HDMI_PHY_CONF0_PDZ_OFFSET = 7, ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] drm: bridge: dw-hdmi: add HDMI vendor specific infoframe config 2017-03-21 7:47 ` Andrzej Hajda @ 2017-03-21 7:51 ` Archit Taneja 0 siblings, 0 replies; 4+ messages in thread From: Archit Taneja @ 2017-03-21 7:51 UTC (permalink / raw) To: Andrzej Hajda, Nickey Yang Cc: airlied, laurent.pinchart+renesas, linux-kernel, dri-devel, dianders, linux-rockchip, joabreu, rmk+kernel, andy.yan, vladimir_zapolskiy, zhengyang On 03/21/2017 01:17 PM, Andrzej Hajda wrote: > On 20.03.2017 07:10, Nickey Yang wrote: >> Vendor specific infoframe is mandatory for 4K2K resolution. >> Without this, the HDMI protocol compliance fails. >> >> Signed-off-by: Nickey Yang <nickey.yang@rock-chips.com> >> --- >> drivers/gpu/drm/bridge/dw-hdmi.c | 50 ++++++++++++++++++++++++++++++++++++++++ >> drivers/gpu/drm/bridge/dw-hdmi.h | 4 ++++ >> 2 files changed, 54 insertions(+) >> >> diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c >> index 9a9ec27..79e2e48 100644 >> --- a/drivers/gpu/drm/bridge/dw-hdmi.c >> +++ b/drivers/gpu/drm/bridge/dw-hdmi.c >> @@ -1195,6 +1195,55 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode) >> hdmi_writeb(hdmi, (frame.right_bar >> 8) & 0xff, HDMI_FC_AVISRB1); >> } >> >> +static void hdmi_config_vendor_specific_infoframe(struct dw_hdmi *hdmi, >> + struct drm_display_mode *mode) >> +{ >> + struct hdmi_vendor_infoframe frame; >> + u8 buffer[10]; >> + ssize_t err; >> + >> + err = drm_hdmi_vendor_infoframe_from_display_mode(&frame, mode); >> + if (err) { >> + dev_err(hdmi->dev, >> + "Failed to get vendor infoframe from mode: %zd\n", err); >> + return; >> + } >> + >> + err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer)); >> + if (!err) { >> + dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n", >> + err); >> + return; >> + } > > AFAIK function returns number of packed bytes or -EINVAL so the check is > incorrect, and -EINVAL means that there is no need to generate vendor > infoframe, so definitely not dev_err. I queued this to drm-misc-next before you posted this. We can have a follow up patch to fix this (since we don't rebase drm-misc). Thanks, Archit > >> + hdmi_modb(hdmi, 0 << HDMI_FC_DATAUTO0_VSD_OFFSET, >> + HDMI_FC_DATAUTO0_VSD_MASK, HDMI_FC_DATAUTO0); > > I see no gain in constructs (0 << HDMI_FC_DATAUTO0_VSD_OFFSET), > additionally mask and offset are redundant (mask == 1 << offset), but it > seems you follow existing practice, so I do not oppose :) > > Regards > Andrzej > >> + >> + /* Set the length of HDMI vendor specific InfoFrame payload */ >> + hdmi_writeb(hdmi, buffer[2], HDMI_FC_VSDSIZE); >> + >> + /* Set 24bit IEEE Registration Identifier */ >> + hdmi_writeb(hdmi, buffer[4], HDMI_FC_VSDIEEEID0); >> + hdmi_writeb(hdmi, buffer[5], HDMI_FC_VSDIEEEID1); >> + hdmi_writeb(hdmi, buffer[6], HDMI_FC_VSDIEEEID2); >> + >> + /* Set HDMI_Video_Format and HDMI_VIC/3D_Structure */ >> + hdmi_writeb(hdmi, buffer[7], HDMI_FC_VSDPAYLOAD0); >> + hdmi_writeb(hdmi, buffer[8], HDMI_FC_VSDPAYLOAD1); >> + >> + if (frame.s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) >> + hdmi_writeb(hdmi, buffer[9], HDMI_FC_VSDPAYLOAD2); >> + >> + /* Packet frame interpolation */ >> + hdmi_writeb(hdmi, 1, HDMI_FC_DATAUTO1); >> + >> + /* Auto packets per frame and line spacing */ >> + hdmi_writeb(hdmi, 0x11, HDMI_FC_DATAUTO2); >> + >> + /* Configures the Frame Composer On RDRB mode */ >> + hdmi_modb(hdmi, 1 << HDMI_FC_DATAUTO0_VSD_OFFSET, >> + HDMI_FC_DATAUTO0_VSD_MASK, HDMI_FC_DATAUTO0); >> +} >> + >> static void hdmi_av_composer(struct dw_hdmi *hdmi, >> const struct drm_display_mode *mode) >> { >> @@ -1446,6 +1495,7 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode) >> >> /* HDMI Initialization Step F - Configure AVI InfoFrame */ >> hdmi_config_AVI(hdmi, mode); >> + hdmi_config_vendor_specific_infoframe(hdmi, mode); >> } else { >> dev_dbg(hdmi->dev, "%s DVI mode\n", __func__); >> } >> diff --git a/drivers/gpu/drm/bridge/dw-hdmi.h b/drivers/gpu/drm/bridge/dw-hdmi.h >> index 325b0b8..c59f87e 100644 >> --- a/drivers/gpu/drm/bridge/dw-hdmi.h >> +++ b/drivers/gpu/drm/bridge/dw-hdmi.h >> @@ -854,6 +854,10 @@ enum { >> HDMI_FC_DBGFORCE_FORCEAUDIO = 0x10, >> HDMI_FC_DBGFORCE_FORCEVIDEO = 0x1, >> >> +/* FC_DATAUTO0 field values */ >> + HDMI_FC_DATAUTO0_VSD_MASK = 0x08, >> + HDMI_FC_DATAUTO0_VSD_OFFSET = 3, >> + >> /* PHY_CONF0 field values */ >> HDMI_PHY_CONF0_PDZ_MASK = 0x80, >> HDMI_PHY_CONF0_PDZ_OFFSET = 7, > > -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project ^ permalink raw reply [flat|nested] 4+ messages in thread
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2017-03-20 6:10 ` [PATCH] drm: bridge: dw-hdmi: add HDMI vendor specific infoframe config Nickey Yang
2017-03-20 11:08 ` Jose Abreu
2017-03-21 7:47 ` Andrzej Hajda
2017-03-21 7:51 ` Archit Taneja
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