| Message ID | 20240926075018.22328-2-Hermes.Wu@ite.com.tw (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | fix HDCP CTS fail items and add MCCS support | expand |
On Thu, Sep 26, 2024 at 03:50:15PM GMT, Hermes Wu wrote: > From: Hermes Wu <Hermes.wu@ite.com.tw> > > When HDCP is activated, A DisplayPort source receives CP_IRQ from the > sink shall check Bstatus from DPCD and process the corresponding value. > > > Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver") > Signed-off-by: Hermes Wu <Hermes.wu@ite.com.tw> > --- > drivers/gpu/drm/bridge/ite-it6505.c | 12 +++++++++--- > 1 file changed, 9 insertions(+), 3 deletions(-) > Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Il 26/09/24 09:50, Hermes Wu ha scritto: > From: Hermes Wu <Hermes.wu@ite.com.tw> > > When HDCP is activated, A DisplayPort source receives CP_IRQ from the > sink shall check Bstatus from DPCD and process the corresponding value. > > > Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver") > Signed-off-by: Hermes Wu <Hermes.wu@ite.com.tw> > --- > drivers/gpu/drm/bridge/ite-it6505.c | 12 +++++++++--- > 1 file changed, 9 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c > index 5d5ce12cd054..d2ec3dfc57d6 100644 > --- a/drivers/gpu/drm/bridge/ite-it6505.c > +++ b/drivers/gpu/drm/bridge/ite-it6505.c > @@ -2322,14 +2322,20 @@ static int it6505_process_hpd_irq(struct it6505 *it6505) > DRM_DEV_DEBUG_DRIVER(dev, "dp_irq_vector = 0x%02x", dp_irq_vector); > > if (dp_irq_vector & DP_CP_IRQ) { > - it6505_set_bits(it6505, REG_HDCP_TRIGGER, HDCP_TRIGGER_CPIRQ, > - HDCP_TRIGGER_CPIRQ); > - > bstatus = it6505_dpcd_read(it6505, DP_AUX_HDCP_BSTATUS); > if (bstatus < 0) > return bstatus; > > DRM_DEV_DEBUG_DRIVER(dev, "Bstatus = 0x%02x", bstatus); > + > + /*check BSTATUS when recive CP_IRQ */ /* Check .... */ > + if (bstatus & DP_BSTATUS_R0_PRIME_READY && > + it6505->hdcp_status == HDCP_AUTH_GOING) > + it6505_set_bits(it6505, REG_HDCP_TRIGGER, HDCP_TRIGGER_CPIRQ, > + HDCP_TRIGGER_CPIRQ); > + else if (bstatus & (DP_BSTATUS_REAUTH_REQ | DP_BSTATUS_LINK_FAILURE) && > + it6505->hdcp_status == HDCP_AUTH_DONE) > + it6505_start_hdcp(it6505); > } > > ret = drm_dp_dpcd_read_link_status(&it6505->aux, link_status);
diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c index 5d5ce12cd054..d2ec3dfc57d6 100644 --- a/drivers/gpu/drm/bridge/ite-it6505.c +++ b/drivers/gpu/drm/bridge/ite-it6505.c @@ -2322,14 +2322,20 @@ static int it6505_process_hpd_irq(struct it6505 *it6505) DRM_DEV_DEBUG_DRIVER(dev, "dp_irq_vector = 0x%02x", dp_irq_vector); if (dp_irq_vector & DP_CP_IRQ) { - it6505_set_bits(it6505, REG_HDCP_TRIGGER, HDCP_TRIGGER_CPIRQ, - HDCP_TRIGGER_CPIRQ); - bstatus = it6505_dpcd_read(it6505, DP_AUX_HDCP_BSTATUS); if (bstatus < 0) return bstatus; DRM_DEV_DEBUG_DRIVER(dev, "Bstatus = 0x%02x", bstatus); + + /*check BSTATUS when recive CP_IRQ */ + if (bstatus & DP_BSTATUS_R0_PRIME_READY && + it6505->hdcp_status == HDCP_AUTH_GOING) + it6505_set_bits(it6505, REG_HDCP_TRIGGER, HDCP_TRIGGER_CPIRQ, + HDCP_TRIGGER_CPIRQ); + else if (bstatus & (DP_BSTATUS_REAUTH_REQ | DP_BSTATUS_LINK_FAILURE) && + it6505->hdcp_status == HDCP_AUTH_DONE) + it6505_start_hdcp(it6505); } ret = drm_dp_dpcd_read_link_status(&it6505->aux, link_status);