linux-kernel - [PATCH 2/3] drm: panel: simple: Add BOE NV110WTM-N61

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Message-Id: <20201027094553.2.I71b2118dfc00fd7b43b02d28e7b890081c2acfa2@changeid>
Date:   Tue, 27 Oct 2020 09:45:55 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>
Cc:     Daniel Vetter <daniel@...ll.ch>, robdclark@...omium.org,
        Rob Herring <robh+dt@...nel.org>,
        dri-devel@...ts.freedesktop.org, David Airlie <airlied@...ux.ie>,
        Douglas Anderson <dianders@...omium.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] drm: panel: simple: Add BOE NV110WTM-N61

Add support for the BOE NV110WTM-N61 panel.  The EDID lists two modes
(one for 60 Hz refresh rate and one for 40 Hz), so we'll list both of
them here.

Note that the panel datasheet requires 80 ms between HPD asserting and
the backlight power being turned on.  We'll use the new timing
constraints structure to do this cleanly.  This assumes that the
backlight will be enabled _after_ the panel enable finishes.  This is
how it works today and seems a sane assumption.

Signed-off-by: Douglas Anderson <dianders@...omium.org>
---

 drivers/gpu/drm/panel/panel-simple.c | 48 ++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index cbbe71a2a940..c17c1203734a 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1353,6 +1353,51 @@ static const struct panel_desc boe_nv101wxmn51 = {
 	},
 };
 
+static const struct drm_display_mode boe_nv110wtm_n61_modes[] = {
+	{
+		.clock = 207800,
+		.hdisplay = 2160,
+		.hsync_start = 2160 + 48,
+		.hsync_end = 2160 + 48 + 32,
+		.htotal = 2160 + 48 + 32 + 100,
+		.vdisplay = 1440,
+		.vsync_start = 1440 + 3,
+		.vsync_end = 1440 + 3 + 6,
+		.vtotal = 1440 + 3 + 6 + 31,
+	},
+	{
+		.clock = 138500,
+		.hdisplay = 2160,
+		.hsync_start = 2160 + 48,
+		.hsync_end = 2160 + 48 + 32,
+		.htotal = 2160 + 48 + 32 + 100,
+		.vdisplay = 1440,
+		.vsync_start = 1440 + 3,
+		.vsync_end = 1440 + 3 + 6,
+		.vtotal = 1440 + 3 + 6 + 31,
+	},
+};
+
+static const struct panel_desc boe_nv110wtm_n61 = {
+	.modes = boe_nv110wtm_n61_modes,
+	.num_modes = ARRAY_SIZE(boe_nv110wtm_n61_modes),
+	.bpc = 8,
+	.size = {
+		.width = 233,
+		.height = 155,
+	},
+	.delay = {
+		.hpd_absent_delay = 200,
+	},
+	.timing_constraints = {
+		.prepare_to_enable_ms = 80,
+		.unprepare_to_prepare_ms = 500,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+	.bus_flags = DRM_BUS_FLAG_DATA_MSB_TO_LSB,
+	.connector_type = DRM_MODE_CONNECTOR_eDP,
+};
+
 /* Also used for boe_nv133fhm_n62 */
 static const struct drm_display_mode boe_nv133fhm_n61_modes = {
 	.clock = 147840,
@@ -4015,6 +4060,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "boe,nv101wxmn51",
 		.data = &boe_nv101wxmn51,
+	}, {
+		.compatible = "boe,nv110wtm-n61",
+		.data = &boe_nv110wtm_n61,
 	}, {
 		.compatible = "boe,nv133fhm-n61",
 		.data = &boe_nv133fhm_n61,
-- 
2.29.0.rc2.309.g374f81d7ae-goog