Add driver for Seiko Instruments Inc. 4.3" WVGA (800 x RGB x 480)
TFT with Touch-Panel.
Datasheet available at:
http://www.glyn.de/data/glyn/media/doc/43wvf1g-0.pdf
Seiko 43WVF1G panel has two power supplies: avdd and dvdd and they
require a specific power on/down sequence.
For this reason the simple panel driver cannot be used to drive this
panel, so create a new one heavily based on simple panel.
Based on initial patch submission from Breno Lima.
Signed-off-by: Marco Franchi
---
Changes since v1:
-Change supply names to dvdd-supply and avdd-supply
.../bindings/display/panel/seiko,43wvf1g.txt | 23 ++
drivers/gpu/drm/panel/Kconfig | 9 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-seiko-43wvf1g.c| 372 +
4 files changed, 405 insertions(+)
create mode 100644
Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt
create mode 100644 drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
diff --git a/Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt
b/Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt
new file mode 100644
index 000..aae57ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt
@@ -0,0 +1,23 @@
+Seiko Instruments Inc. 4.3" WVGA (800 x RGB x 480) TFT with Touch-Panel
+
+Required properties:
+- compatible: should be "sii,43wvf1g".
+- "dvdd-supply": 3v3 digital regulator.
+- "avdd-supply": 5v analog regulator.
+
+Optional properties:
+- backlight: phandle for the backlight control.
+
+Example:
+
+ panel {
+ compatible = "sii,43wvf1g";
+ backlight = <&backlight_display>;
+ dvdd-supply = <®_lcd_3v3>;
+ avdd-supply = <®_lcd_5v>;
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&display_out>;
+ };
+ };
+ };
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index d84a031..09b0717 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -86,6 +86,15 @@ config DRM_PANEL_SAMSUNG_S6E8AA0
select DRM_MIPI_DSI
select VIDEOMODE_HELPERS
+config DRM_PANEL_SEIKO_43WVF1G
+ tristate "Seiko 43WVF1G panel"
+ depends on OF
+ depends on BACKLIGHT_CLASS_DEVICE
+ select VIDEOMODE_HELPERS
+ help
+ Say Y here if you want to enable support for the Seiko
+ 43WVF1G controller for 800x480 LCD panels
+
config DRM_PANEL_SHARP_LQ101R1SX01
tristate "Sharp LQ101R1SX01 panel"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 9f6610d..183c6bf 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) +=
panel-panasonic-vvx10f034n00.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o
+obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += panel-seiko-43wvf1g.o
obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o
obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o
obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
diff --git a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
new file mode 100644
index 000..71c09ed
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
@@ -0,0 +1,372 @@
+/*
+ * Copyright (C) 2017 NXP Semiconductors.
+ * Author: Marco Franchi
+ *
+ * Based on Panel Simple driver by Thierry Reding
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ */
+
+#include
+#include
+#include
+#include
+
+#include
+#include
+#include
+
+#include
+#include
+
+struct seiko_panel_desc {
+ const struct drm_display_mode *modes;
+ unsigned int num_modes;
+ const struct display_timing *timings;
+ unsigned int num_timings;
+
+ unsigned int bpc;
+
+ /**
+* @width: width (in millimeters) of the panel's active display area
+* @height: height (in millimeters) of the panel's active display area
+*/
+ struct {
+ unsigned int width;
+ unsigned int height;
+ } size;
+
+ u32 bus_format;
+ u32 bus_flags;
+};
+
+struct seiko_panel {
+ struct drm_panel base;
+ bool prepared;
+ bool enabled;
+ const struct seiko_panel_desc *desc;
+ struct backlight_device *backlight;
+ struct regulator *dvdd;
+ struct regulator *avdd;
+};
+
+static inline struct seiko_panel *to_seiko_panel(struct drm_panel *panel
