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authorPhilipp Zabel <philipp.zabel@gmail.com>2014-11-19 10:29:55 +0100
committerThierry Reding <treding@nvidia.com>2015-01-16 12:25:11 +0100
commitd1d544999046d12c4e7d1244ed5f1e500d719053 (patch)
treef14b2adbfd773309d04fec81e86b205307d17e78
parentc5e83356321b6534f4879dc4fc176e13ca7dc25f (diff)
drm/panel: simple: Add support for Giantplus GPG482739QS5
This patch adds support for the GiantPlus GPG48273QS5 4.3" WQVGA TFT LCD panel to the simple-panel driver. This panel is connected via a parallel bus and uses both HSYNC and VSYNC, whose lengths are unfortunately not clearly defined. The datasheet only specifies the front- and backporch length, but the timing diagram suggests that both sync signals should be asserted for exactly one clock cycle. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Thierry Reding <treding@nvidia.com>
-rw-r--r--Documentation/devicetree/bindings/panel/giantplus,gpg482739qs5.txt7
-rw-r--r--drivers/gpu/drm/panel/panel-simple.c26
2 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/panel/giantplus,gpg482739qs5.txt b/Documentation/devicetree/bindings/panel/giantplus,gpg482739qs5.txt
new file mode 100644
index 00000000000..24b0b624434
--- /dev/null
+++ b/Documentation/devicetree/bindings/panel/giantplus,gpg482739qs5.txt
@@ -0,0 +1,7 @@
+GiantPlus GPG48273QS5 4.3" (480x272) WQVGA TFT LCD panel
+
+Required properties:
+- compatible: should be "giantplus,gpg48273qs5"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index e95385bf835..9e1d9b940c5 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -560,6 +560,29 @@ static const struct panel_desc foxlink_fl500wvr00_a0t = {
},
};
+static const struct drm_display_mode giantplus_gpg482739qs5_mode = {
+ .clock = 9000,
+ .hdisplay = 480,
+ .hsync_start = 480 + 5,
+ .hsync_end = 480 + 5 + 1,
+ .htotal = 480 + 5 + 1 + 40,
+ .vdisplay = 272,
+ .vsync_start = 272 + 8,
+ .vsync_end = 272 + 8 + 1,
+ .vtotal = 272 + 8 + 1 + 8,
+ .vrefresh = 60,
+};
+
+static const struct panel_desc giantplus_gpg482739qs5 = {
+ .modes = &giantplus_gpg482739qs5_mode,
+ .num_modes = 1,
+ .bpc = 8,
+ .size = {
+ .width = 95,
+ .height = 54,
+ },
+};
+
static const struct drm_display_mode hannstar_hsd070pww1_mode = {
.clock = 71100,
.hdisplay = 1280,
@@ -757,6 +780,9 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "foxlink,fl500wvr00-a0t",
.data = &foxlink_fl500wvr00_a0t,
}, {
+ .compatible = "giantplus,gpg482739qs5",
+ .data = &giantplus_gpg482739qs5
+ }, {
.compatible = "hannstar,hsd070pww1",
.data = &hannstar_hsd070pww1,
}, {