From: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
To: <dri-devel@lists.freedesktop.org>,
<linux-arm-msm@vger.kernel.org>,
<freedreno@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>
Cc: Sankeerth Billakanti <quic_sbillaka@quicinc.com>,
<robdclark@gmail.com>, <seanpaul@chromium.org>,
<swboyd@chromium.org>, <quic_kalyant@quicinc.com>,
<quic_abhinavk@quicinc.com>, <dianders@chromium.org>,
<quic_khsieh@quicinc.com>, <agross@kernel.org>,
<bjorn.andersson@linaro.org>, <robh+dt@kernel.org>,
<krzk+dt@kernel.org>, <sean@poorly.run>, <airlied@linux.ie>,
<daniel@ffwll.ch>, <thierry.reding@gmail.com>, <sam@ravnborg.org>,
<dmitry.baryshkov@linaro.org>, <quic_vproddut@quicinc.com>
Subject: [PATCH v5 9/9] drm/msm/dp: Support edp/dp without hpd
Date: Wed, 16 Mar 2022 23:05:54 +0530 [thread overview]
Message-ID: <1647452154-16361-10-git-send-email-quic_sbillaka@quicinc.com> (raw)
In-Reply-To: <1647452154-16361-1-git-send-email-quic_sbillaka@quicinc.com>
Some eDP sinks or platform boards will not support hpd.
This patch adds support for those cases.
Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
---
drivers/gpu/drm/msm/dp/dp_catalog.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c
index f15316b..f8ddc73 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.c
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.c
@@ -596,8 +596,10 @@ void dp_catalog_ctrl_hpd_config(struct dp_catalog *dp_catalog)
reftimer |= DP_DP_HPD_REFTIMER_ENABLE;
dp_write_aux(catalog, REG_DP_DP_HPD_REFTIMER, reftimer);
- /* Enable HPD */
- dp_write_aux(catalog, REG_DP_DP_HPD_CTRL, DP_DP_HPD_CTRL_HPD_EN);
+ /* Enable HPD if supported*/
+ if (!of_property_read_bool(catalog->dev->of_node, "no-hpd"))
+ dp_write_aux(catalog, REG_DP_DP_HPD_CTRL,
+ DP_DP_HPD_CTRL_HPD_EN);
}
u32 dp_catalog_link_is_connected(struct dp_catalog *dp_catalog)
--
2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
To: <dri-devel@lists.freedesktop.org>,
<linux-arm-msm@vger.kernel.org>,
<freedreno@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>
Cc: quic_kalyant@quicinc.com,
Sankeerth Billakanti <quic_sbillaka@quicinc.com>,
dianders@chromium.org, bjorn.andersson@linaro.org,
quic_vproddut@quicinc.com, airlied@linux.ie, sam@ravnborg.org,
quic_abhinavk@quicinc.com, robh+dt@kernel.org,
swboyd@chromium.org, agross@kernel.org, seanpaul@chromium.org,
dmitry.baryshkov@linaro.org, thierry.reding@gmail.com,
krzk+dt@kernel.org, quic_khsieh@quicinc.com, sean@poorly.run
Subject: [PATCH v5 9/9] drm/msm/dp: Support edp/dp without hpd
Date: Wed, 16 Mar 2022 23:05:54 +0530 [thread overview]
Message-ID: <1647452154-16361-10-git-send-email-quic_sbillaka@quicinc.com> (raw)
In-Reply-To: <1647452154-16361-1-git-send-email-quic_sbillaka@quicinc.com>
Some eDP sinks or platform boards will not support hpd.
This patch adds support for those cases.
Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
---
drivers/gpu/drm/msm/dp/dp_catalog.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c
index f15316b..f8ddc73 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.c
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.c
@@ -596,8 +596,10 @@ void dp_catalog_ctrl_hpd_config(struct dp_catalog *dp_catalog)
reftimer |= DP_DP_HPD_REFTIMER_ENABLE;
dp_write_aux(catalog, REG_DP_DP_HPD_REFTIMER, reftimer);
- /* Enable HPD */
- dp_write_aux(catalog, REG_DP_DP_HPD_CTRL, DP_DP_HPD_CTRL_HPD_EN);
+ /* Enable HPD if supported*/
+ if (!of_property_read_bool(catalog->dev->of_node, "no-hpd"))
+ dp_write_aux(catalog, REG_DP_DP_HPD_CTRL,
+ DP_DP_HPD_CTRL_HPD_EN);
}
u32 dp_catalog_link_is_connected(struct dp_catalog *dp_catalog)
--
2.7.4
next prev parent reply other threads:[~2022-03-16 17:38 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-16 17:35 [PATCH v5 0/9] Add support for the eDP panel on sc7280 CRD Sankeerth Billakanti
2022-03-16 17:35 ` Sankeerth Billakanti
2022-03-16 17:35 ` [PATCH v5 1/9] arm64: dts: qcom: sc7280: rename edp_out label to mdss_edp_out Sankeerth Billakanti
2022-03-16 17:35 ` Sankeerth Billakanti
2022-03-17 21:11 ` Stephen Boyd
2022-03-17 21:11 ` Stephen Boyd
2022-03-18 0:13 ` Doug Anderson
2022-03-18 0:13 ` Doug Anderson
2022-03-16 17:35 ` [PATCH v5 2/9] arm64: dts: qcom: sc7280: Add support for eDP panel on CRD Sankeerth Billakanti
2022-03-16 17:35 ` Sankeerth Billakanti
2022-03-17 21:23 ` Stephen Boyd
2022-03-17 21:23 ` Stephen Boyd
2022-03-25 13:30 ` Sankeerth Billakanti (QUIC)
2022-03-25 13:30 ` Sankeerth Billakanti (QUIC)
2022-03-25 19:51 ` Stephen Boyd
2022-03-25 19:51 ` Stephen Boyd
2022-03-18 17:20 ` Doug Anderson
2022-03-18 17:20 ` Doug Anderson
2022-03-25 13:41 ` Sankeerth Billakanti (QUIC)
2022-03-25 13:41 ` Sankeerth Billakanti (QUIC)
2022-03-25 13:44 ` Doug Anderson
2022-03-25 13:44 ` Doug Anderson
2022-03-16 17:35 ` [PATCH v5 3/9] arm64: dts: qcom: sc7280: Enable backlight for eDP panel Sankeerth Billakanti
2022-03-16 17:35 ` Sankeerth Billakanti
2022-03-17 21:28 ` Stephen Boyd
2022-03-17 21:28 ` Stephen Boyd
2022-03-25 13:34 ` Sankeerth Billakanti (QUIC)
2022-03-25 13:34 ` Sankeerth Billakanti (QUIC)
2022-03-16 17:35 ` [PATCH v5 4/9] drm/panel-edp: add LQ140M1JW46 edp panel entry Sankeerth Billakanti
2022-03-16 17:35 ` Sankeerth Billakanti
2022-03-17 21:28 ` Stephen Boyd
2022-03-17 21:28 ` Stephen Boyd
2022-03-18 0:04 ` Doug Anderson
2022-03-18 0:04 ` Doug Anderson
2022-03-16 17:35 ` [PATCH v5 5/9] drm/msm/dp: Add eDP support via aux_bus Sankeerth Billakanti
2022-03-16 17:35 ` Sankeerth Billakanti
2022-03-17 21:37 ` Stephen Boyd
2022-03-17 21:37 ` Stephen Boyd
2022-03-25 14:11 ` Sankeerth Billakanti (QUIC)
2022-03-25 14:11 ` Sankeerth Billakanti (QUIC)
2022-03-25 16:45 ` Doug Anderson
2022-03-25 16:45 ` Doug Anderson
2022-03-16 17:35 ` [PATCH v5 6/9] drm/msm/dp: wait for hpd high before any sink interaction Sankeerth Billakanti
2022-03-16 17:35 ` Sankeerth Billakanti
2022-03-18 1:19 ` Stephen Boyd
2022-03-18 1:19 ` Stephen Boyd
2022-03-18 16:24 ` Doug Anderson
2022-03-18 16:24 ` Doug Anderson
2022-03-18 20:16 ` Stephen Boyd
2022-03-18 20:16 ` Stephen Boyd
2022-03-18 21:58 ` Doug Anderson
2022-03-18 21:58 ` Doug Anderson
2022-03-18 23:27 ` Stephen Boyd
2022-03-18 23:27 ` Stephen Boyd
2022-03-18 23:56 ` Doug Anderson
2022-03-18 23:56 ` Doug Anderson
2022-03-25 15:54 ` Sankeerth Billakanti (QUIC)
2022-03-25 15:54 ` Sankeerth Billakanti (QUIC)
2022-03-25 16:05 ` Doug Anderson
2022-03-25 16:05 ` Doug Anderson
2022-03-25 16:44 ` Sankeerth Billakanti
2022-03-25 16:44 ` Sankeerth Billakanti
2022-03-16 17:35 ` [PATCH v5 7/9] drm/msm/dp: Support only IRQ_HPD and REPLUG interrupts for eDP Sankeerth Billakanti
2022-03-16 17:35 ` Sankeerth Billakanti
2022-03-16 17:35 ` [PATCH v5 8/9] drm/msm/dp: Handle eDP mode_valid case Sankeerth Billakanti
2022-03-16 17:35 ` Sankeerth Billakanti
2022-03-16 17:35 ` Sankeerth Billakanti [this message]
2022-03-16 17:35 ` [PATCH v5 9/9] drm/msm/dp: Support edp/dp without hpd Sankeerth Billakanti
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