From: "Guido Günther" <agx@sigxcpu.org>
To: Thierry Reding <thierry.reding@gmail.com>,
Sam Ravnborg <sam@ravnborg.org>, David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel@ffwll.ch>, Rob Herring <robh+dt@kernel.org>,
Ondrej Jirman <megous@megous.com>,
Linus Walleij <linus.walleij@linaro.org>,
Arnd Bergmann <arnd@arndb.de>,
Krzysztof Kozlowski <krzk@kernel.org>,
Lubomir Rintel <lkundrak@v3.sk>, Mark Brown <broonie@kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
allen <allen.chen@ite.com.tw>,
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/6] drm/panel: mantix: Tweak init sequence
Date: Wed, 18 Nov 2020 09:29:49 +0100 [thread overview]
Message-ID: <8451831b60d5ecb73a156613d98218a31bd55680.1605688147.git.agx@sigxcpu.org> (raw)
In-Reply-To: <cover.1605688147.git.agx@sigxcpu.org>
We've seen some (non permanent) burn in and bad white balance
on some of the panels. Adding this bit from a vendor supplied
sequence fixes it.
Fixes: 72967d5616d3 ("drm/panel: Add panel driver for the Mantix MLAF057WE51-X DSI panel")
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
index 0c5f22e95c2d..624d17b96a69 100644
--- a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
+++ b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
@@ -22,6 +22,7 @@
/* Manufacturer specific Commands send via DSI */
#define MANTIX_CMD_OTP_STOP_RELOAD_MIPI 0x41
#define MANTIX_CMD_INT_CANCEL 0x4C
+#define MANTIX_CMD_SPI_FINISH 0x90
struct mantix {
struct device *dev;
@@ -66,6 +67,10 @@ static int mantix_init_sequence(struct mantix *ctx)
dsi_generic_write_seq(dsi, 0x80, 0x64, 0x00, 0x64, 0x00, 0x00);
msleep(20);
+ dsi_generic_write_seq(dsi, MANTIX_CMD_SPI_FINISH, 0xA5);
+ dsi_generic_write_seq(dsi, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x00, 0x2F);
+ msleep(20);
+
dev_dbg(dev, "Panel init sequence done\n");
return 0;
}
--
2.29.2
next prev parent reply other threads:[~2020-11-18 8:30 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-18 8:29 [PATCH v2 0/6] drm/panel: mantix and st7703 fixes and additions Guido Günther
2020-11-18 8:29 ` [PATCH v2 1/6] drm/panel: st7703: Use dev_err_probe Guido Günther
2020-11-23 21:49 ` Sam Ravnborg
2020-11-18 8:29 ` Guido Günther [this message]
2020-11-18 8:29 ` [PATCH v2 3/6] drm/panel: mantix: Allow to specify default mode for different panels Guido Günther
2020-11-18 8:29 ` [PATCH v2 4/6] drm/panel: mantix: Support panel from Shenzhen Yashi Changhua Intelligent Technology Co Guido Günther
2020-11-18 8:29 ` [PATCH v2 5/6] dt-bindings: vendor-prefixes: Add ys vendor prefix Guido Günther
2020-12-07 21:31 ` Rob Herring
2020-11-18 8:29 ` [PATCH v2 6/6] dt-binding: display: mantix: Add compatible for panel from YS Guido Günther
2020-12-07 21:32 ` Rob Herring
2020-12-08 10:19 ` Guido Günther
2020-11-19 8:35 ` [PATCH v2 0/6] drm/panel: mantix and st7703 fixes and additions Linus Walleij
2020-11-20 12:04 ` Guido Günther
2020-12-04 9:17 ` Guido Günther
2020-11-23 21:48 ` Sam Ravnborg
2020-11-24 8:15 ` Guido Günther
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=8451831b60d5ecb73a156613d98218a31bd55680.1605688147.git.agx@sigxcpu.org \
--to=agx@sigxcpu.org \
--cc=airlied@linux.ie \
--cc=allen.chen@ite.com.tw \
--cc=arnd@arndb.de \
--cc=broonie@kernel.org \
--cc=daniel@ffwll.ch \
--cc=devicetree@vger.kernel.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=geert+renesas@glider.be \
--cc=krzk@kernel.org \
--cc=kuninori.morimoto.gx@renesas.com \
--cc=linus.walleij@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lkundrak@v3.sk \
--cc=megous@megous.com \
--cc=robh+dt@kernel.org \
--cc=sam@ravnborg.org \
--cc=thierry.reding@gmail.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).