From: Stephen Boyd <swboyd@chromium.org> To: Kuogee Hsieh <quic_khsieh@quicinc.com>, agross@kernel.org, airlied@linux.ie, bjorn.andersson@linaro.org, daniel@ffwll.ch, dmitry.baryshkov@linaro.org, dri-devel@lists.freedesktop.org, robdclark@gmail.com, sean@poorly.run, vkoul@kernel.org Cc: quic_abhinavk@quicinc.com, aravindh@codeaurora.org, quic_sbillaka@quicinc.com, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v14 1/4] drm/msm/dp: do not initialize phy until plugin interrupt received Date: Fri, 14 Jan 2022 14:41:48 -0600 [thread overview] Message-ID: <CAE-0n52UntroUk9hzPorUOvkVty1=V5B2oznYghi_DM6=zyzrw@mail.gmail.com> (raw) In-Reply-To: <1642182874-27296-2-git-send-email-quic_khsieh@quicinc.com> Quoting Kuogee Hsieh (2022-01-14 09:54:31) > diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c > index 7cc4d21..2616f7b 100644 > --- a/drivers/gpu/drm/msm/dp/dp_display.c > +++ b/drivers/gpu/drm/msm/dp/dp_display.c > @@ -372,21 +373,38 @@ static int dp_display_process_hpd_high(struct dp_display_private *dp) > return rc; > } > > -static void dp_display_host_init(struct dp_display_private *dp, int reset) > +static void dp_display_host_phy_init(struct dp_display_private *dp) > { > - bool flip = false; > + DRM_DEBUG_DP("core_init=%d phy_init=%d\n", > + dp->core_initialized, dp->phy_initialized); > > + if (!dp->phy_initialized) { > + dp_ctrl_phy_init(dp->ctrl); > + dp->phy_initialized = true; > + } > +} > + > +static void dp_display_host_phy_exit(struct dp_display_private *dp) > +{ > + DRM_DEBUG_DP("core_init=%d phy_init=%d\n", > + dp->core_initialized, dp->phy_initialized); > + > + if (dp->phy_initialized) { > + dp_ctrl_phy_exit(dp->ctrl); > + dp->phy_initialized = false; > + } > +} > + > +static void dp_display_host_init(struct dp_display_private *dp) > +{ > DRM_DEBUG_DP("core_initialized=%d\n", dp->core_initialized); > if (dp->core_initialized) { Can you remove this if condition too? I don't see how it ever happens. > DRM_DEBUG_DP("DP core already initialized\n"); > return; > } > > - if (dp->usbpd->orientation == ORIENTATION_CC2) > - flip = true; > - > - dp_power_init(dp->power, flip); > - dp_ctrl_host_init(dp->ctrl, flip, reset); > + dp_power_init(dp->power, false); > + dp_ctrl_reset_irq_ctrl(dp->ctrl, true); > dp_aux_init(dp->aux); > dp->core_initialized = true; > }
WARNING: multiple messages have this Message-ID (diff)
From: Stephen Boyd <swboyd@chromium.org> To: Kuogee Hsieh <quic_khsieh@quicinc.com>, agross@kernel.org, airlied@linux.ie, bjorn.andersson@linaro.org, daniel@ffwll.ch, dmitry.baryshkov@linaro.org, dri-devel@lists.freedesktop.org, robdclark@gmail.com, sean@poorly.run, vkoul@kernel.org Cc: quic_sbillaka@quicinc.com, linux-arm-msm@vger.kernel.org, quic_abhinavk@quicinc.com, linux-kernel@vger.kernel.org, aravindh@codeaurora.org, freedreno@lists.freedesktop.org Subject: Re: [PATCH v14 1/4] drm/msm/dp: do not initialize phy until plugin interrupt received Date: Fri, 14 Jan 2022 14:41:48 -0600 [thread overview] Message-ID: <CAE-0n52UntroUk9hzPorUOvkVty1=V5B2oznYghi_DM6=zyzrw@mail.gmail.com> (raw) In-Reply-To: <1642182874-27296-2-git-send-email-quic_khsieh@quicinc.com> Quoting Kuogee Hsieh (2022-01-14 09:54:31) > diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c > index 7cc4d21..2616f7b 100644 > --- a/drivers/gpu/drm/msm/dp/dp_display.c > +++ b/drivers/gpu/drm/msm/dp/dp_display.c > @@ -372,21 +373,38 @@ static int dp_display_process_hpd_high(struct dp_display_private *dp) > return rc; > } > > -static void dp_display_host_init(struct dp_display_private *dp, int reset) > +static void dp_display_host_phy_init(struct dp_display_private *dp) > { > - bool flip = false; > + DRM_DEBUG_DP("core_init=%d phy_init=%d\n", > + dp->core_initialized, dp->phy_initialized); > > + if (!dp->phy_initialized) { > + dp_ctrl_phy_init(dp->ctrl); > + dp->phy_initialized = true; > + } > +} > + > +static void dp_display_host_phy_exit(struct dp_display_private *dp) > +{ > + DRM_DEBUG_DP("core_init=%d phy_init=%d\n", > + dp->core_initialized, dp->phy_initialized); > + > + if (dp->phy_initialized) { > + dp_ctrl_phy_exit(dp->ctrl); > + dp->phy_initialized = false; > + } > +} > + > +static void dp_display_host_init(struct dp_display_private *dp) > +{ > DRM_DEBUG_DP("core_initialized=%d\n", dp->core_initialized); > if (dp->core_initialized) { Can you remove this if condition too? I don't see how it ever happens. > DRM_DEBUG_DP("DP core already initialized\n"); > return; > } > > - if (dp->usbpd->orientation == ORIENTATION_CC2) > - flip = true; > - > - dp_power_init(dp->power, flip); > - dp_ctrl_host_init(dp->ctrl, flip, reset); > + dp_power_init(dp->power, false); > + dp_ctrl_reset_irq_ctrl(dp->ctrl, true); > dp_aux_init(dp->aux); > dp->core_initialized = true; > }
next prev parent reply other threads:[~2022-01-14 20:41 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-01-14 17:54 [PATCH v14 0/4] group dp driver related patches into one series Kuogee Hsieh 2022-01-14 17:54 ` Kuogee Hsieh 2022-01-14 17:54 ` [PATCH v14 1/4] drm/msm/dp: do not initialize phy until plugin interrupt received Kuogee Hsieh 2022-01-14 17:54 ` Kuogee Hsieh 2022-01-14 20:41 ` Stephen Boyd [this message] 2022-01-14 20:41 ` Stephen Boyd 2022-01-14 17:54 ` [PATCH v14 2/4] drm/msm/dp: populate connector of struct dp_panel Kuogee Hsieh 2022-01-14 17:54 ` Kuogee Hsieh 2022-01-14 17:54 ` [PATCH v14 3/4] drm/msm/dp: add support of tps4 (training pattern 4) for HBR3 Kuogee Hsieh 2022-01-14 17:54 ` Kuogee Hsieh 2022-01-14 17:54 ` [PATCH v14 4/4] drm/msm/dp: stop link training after link training 2 failed Kuogee Hsieh 2022-01-14 17:54 ` Kuogee Hsieh
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