All of lore.kernel.org
 help / color / mirror / Atom feed
From: Vicente Bergas <vicencb@gmail.com>
To: "Robin Murphy" <robin.murphy@arm.com>,
	"Jonas Karlman" <jonas@kwiboo.se>,
	"Douglas Anderson" <dianders@chromium.org>,
	crj <algea.cao@rock-chips.com>,
	"Andy Yan" <andy.yan@rock-chips.com>,
	"Sandy Huang" <hjc@rock-chips.com>,
	"Heiko Stübner" <heiko@sntech.de>,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	dri-devel@lists.freedesktop.org,
	linux-rockchip@lists.infradead.org
Cc: Vicente Bergas <vicencb@gmail.com>
Subject: [PATCH v3] drm: rockchip: hdmi: enable higher resolutions than FHD
Date: Tue,  1 Dec 2020 17:06:13 +0100	[thread overview]
Message-ID: <20201201160613.1419-1-vicencb@gmail.com> (raw)

This patch enables a QHD HDMI monitor to work at native resolution.
Tested on a Sapphire board with RK3399 connected to a Q27q-10 monitor at 2560x1440@60

Messages like
dwhdmi-rockchip ff940000.hdmi: PHY configuration failed (clock 148501000)
and like
dwhdmi-rockchip ff940000.hdmi: PHY configuration failed (clock 241501000)
were present and still are because of vop_crtc_mode_fixup in
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
but this time the display ends up working fine, just after an extra delay
of a few seconds.

Changes since v2:
Just add the strictly required frequency for backwards compatibility.

Changes since v1:
Use alternative clock rounding code proposed by Doug Anderson

Signed-off-by: Vicente Bergas <vicencb@gmail.com>
---
 drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 23de359a1..e1515d55b 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -148,6 +148,10 @@ static const struct dw_hdmi_mpll_config rockchip_mpll_cfg[] = {
 			{ 0x214c, 0x0003},
 			{ 0x4064, 0x0003}
 		},
+	}, {
+		241500000, {
+			{ 0x0040, 0x0003},
+		},
 	}, {
 		~0UL, {
 			{ 0x00a0, 0x000a },
@@ -173,6 +177,8 @@ static const struct dw_hdmi_curr_ctrl rockchip_cur_ctr[] = {
 		146250000, { 0x0038, 0x0038, 0x0038 },
 	}, {
 		148500000, { 0x0000, 0x0038, 0x0038 },
+	}, {
+		241500000, { 0x0000,                },
 	}, {
 		~0UL,      { 0x0000, 0x0000, 0x0000},
 	}
-- 
2.29.2


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

WARNING: multiple messages have this Message-ID (diff)
From: Vicente Bergas <vicencb@gmail.com>
To: "Robin Murphy" <robin.murphy@arm.com>,
	"Jonas Karlman" <jonas@kwiboo.se>,
	"Douglas Anderson" <dianders@chromium.org>,
	crj <algea.cao@rock-chips.com>,
	"Andy Yan" <andy.yan@rock-chips.com>,
	"Sandy Huang" <hjc@rock-chips.com>,
	"Heiko Stübner" <heiko@sntech.de>,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	dri-devel@lists.freedesktop.org,
	linux-rockchip@lists.infradead.org
Cc: Vicente Bergas <vicencb@gmail.com>
Subject: [PATCH v3] drm: rockchip: hdmi: enable higher resolutions than FHD
Date: Tue,  1 Dec 2020 17:06:13 +0100	[thread overview]
Message-ID: <20201201160613.1419-1-vicencb@gmail.com> (raw)

This patch enables a QHD HDMI monitor to work at native resolution.
Tested on a Sapphire board with RK3399 connected to a Q27q-10 monitor at 2560x1440@60

Messages like
dwhdmi-rockchip ff940000.hdmi: PHY configuration failed (clock 148501000)
and like
dwhdmi-rockchip ff940000.hdmi: PHY configuration failed (clock 241501000)
were present and still are because of vop_crtc_mode_fixup in
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
but this time the display ends up working fine, just after an extra delay
of a few seconds.

Changes since v2:
Just add the strictly required frequency for backwards compatibility.

Changes since v1:
Use alternative clock rounding code proposed by Doug Anderson

Signed-off-by: Vicente Bergas <vicencb@gmail.com>
---
 drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 23de359a1..e1515d55b 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -148,6 +148,10 @@ static const struct dw_hdmi_mpll_config rockchip_mpll_cfg[] = {
 			{ 0x214c, 0x0003},
 			{ 0x4064, 0x0003}
 		},
+	}, {
+		241500000, {
+			{ 0x0040, 0x0003},
+		},
 	}, {
 		~0UL, {
 			{ 0x00a0, 0x000a },
@@ -173,6 +177,8 @@ static const struct dw_hdmi_curr_ctrl rockchip_cur_ctr[] = {
 		146250000, { 0x0038, 0x0038, 0x0038 },
 	}, {
 		148500000, { 0x0000, 0x0038, 0x0038 },
+	}, {
+		241500000, { 0x0000,                },
 	}, {
 		~0UL,      { 0x0000, 0x0000, 0x0000},
 	}
-- 
2.29.2

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

             reply	other threads:[~2020-12-01 16:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-01 16:06 Vicente Bergas [this message]
2020-12-01 16:06 ` [PATCH v3] drm: rockchip: hdmi: enable higher resolutions than FHD Vicente Bergas
2020-12-14 11:03 ` Vicente Bergas
2020-12-14 11:03   ` Vicente Bergas
2020-12-14 12:06   ` Robin Murphy
2020-12-14 12:06     ` Robin Murphy

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20201201160613.1419-1-vicencb@gmail.com \
    --to=vicencb@gmail.com \
    --cc=airlied@linux.ie \
    --cc=algea.cao@rock-chips.com \
    --cc=andy.yan@rock-chips.com \
    --cc=daniel@ffwll.ch \
    --cc=dianders@chromium.org \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=heiko@sntech.de \
    --cc=hjc@rock-chips.com \
    --cc=jonas@kwiboo.se \
    --cc=linux-rockchip@lists.infradead.org \
    --cc=robin.murphy@arm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.