mirror of
git://git.openwrt.org/openwrt/openwrt.git
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99545b4bb1
This target adds support for the Allwinner D1 RISC-V based SoCs. - RISC-V single-core T-Head C906 (RV64GCV) - Tensilica HiFi4 DSP - DDR2/DDR3 support - 10/100/1000M ethernet - usual peripherals like USB2, SPI, I2C, PWM, etc. Four boards are supported: - Dongshan Nezha STU - 512Mb RAM - ethernet - LicheePi RV Dock - 512Mb RAM - wireless-only (RTL8723DS) - MangoPi MQ-Pro - 512Mb RAM - there are pads available for an SPI flash - wireless-only (RTL8723DS) - Nezha D1 - 512Mb/1Gb/2Gb RAM - 256Mb NAND flash - ethernet, wireless Installation: Standard SD-card installation via dd-ing the generated image to an SD-card of at least 256Mb. Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
488 lines
11 KiB
Diff
488 lines
11 KiB
Diff
From 9d9b8bd567c30a821c82c27035243536c5234542 Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Tue, 29 Mar 2022 22:47:57 -0500
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Subject: [PATCH 017/117] drm/panel: Add driver for ST7701s DPI LCD panel
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Signed-off-by: Samuel Holland <samuel@sholland.org>
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---
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drivers/gpu/drm/panel/Kconfig | 8 +
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drivers/gpu/drm/panel/Makefile | 1 +
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.../gpu/drm/panel/panel-sitronix-st7701s.c | 444 ++++++++++++++++++
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3 files changed, 453 insertions(+)
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create mode 100644 drivers/gpu/drm/panel/panel-sitronix-st7701s.c
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--- a/drivers/gpu/drm/panel/Kconfig
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+++ b/drivers/gpu/drm/panel/Kconfig
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@@ -608,6 +608,14 @@ config DRM_PANEL_SITRONIX_ST7701
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ST7701 controller for 480X864 LCD panels with MIPI/RGB/SPI
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system interfaces.
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+config DRM_PANEL_SITRONIX_ST7701S
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+ tristate "Sitronix ST7701s panel driver"
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+ depends on OF
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+ depends on BACKLIGHT_CLASS_DEVICE
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+ help
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+ Say Y here if you want to enable support for the Sitronix
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+ ST7701s controller with a SPI interface.
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+
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config DRM_PANEL_SITRONIX_ST7703
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tristate "Sitronix ST7703 based MIPI touchscreen panels"
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depends on OF
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--- a/drivers/gpu/drm/panel/Makefile
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+++ b/drivers/gpu/drm/panel/Makefile
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@@ -61,6 +61,7 @@ obj-$(CONFIG_DRM_PANEL_SHARP_LS037V7DW01
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obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o
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obj-$(CONFIG_DRM_PANEL_SHARP_LS060T1SX01) += panel-sharp-ls060t1sx01.o
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obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o
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+obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701S) += panel-sitronix-st7701s.o
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obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o
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obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
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obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
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--- /dev/null
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+++ b/drivers/gpu/drm/panel/panel-sitronix-st7701s.c
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@@ -0,0 +1,444 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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+/*
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+ * Copyright (C) 2017 Free Electrons
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+ */
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+
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+#include <linux/delay.h>
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+#include <linux/gpio/consumer.h>
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+#include <linux/module.h>
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+#include <linux/spi/spi.h>
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+
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+#include <video/mipi_display.h>
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+
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+#include <drm/drm_device.h>
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+#include <drm/drm_modes.h>
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+#include <drm/drm_panel.h>
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+
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+struct st7701s {
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+ struct drm_panel panel;
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+ struct gpio_desc *reset;
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+ struct spi_device *spi;
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+};
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+
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+enum {
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+ ST7789V_COMMAND = 0 << 8,
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+ ST7789V_DATA = 1 << 8,
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+};
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+
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+#define LCD_WRITE_COMMAND(x) (ST7789V_COMMAND | (x))
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+#define LCD_WRITE_DATA(x) (ST7789V_DATA | (x))
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+
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+static const u16 st7701s_init_sequence_1[] = {
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+ LCD_WRITE_COMMAND(0xFF),
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+ LCD_WRITE_DATA(0x77),
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+ LCD_WRITE_DATA(0x01),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x10),
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+
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+ LCD_WRITE_COMMAND(0xC0),
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+ LCD_WRITE_DATA(0x3B),
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+ LCD_WRITE_DATA(0x00),
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+
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+ LCD_WRITE_COMMAND(0xC1),
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+ LCD_WRITE_DATA(0x0D),
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+ LCD_WRITE_DATA(0x02),
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+
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+ LCD_WRITE_COMMAND(0xC2),
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+ LCD_WRITE_DATA(0x21),
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+ LCD_WRITE_DATA(0x08),
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+
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+ // RGB Interface Setting
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+ // LCD_WRITE_COMMAND(0xC3),
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+ // LCD_WRITE_DATA(0x02),
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+
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+ LCD_WRITE_COMMAND(0xCD),
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+ LCD_WRITE_DATA(0x18),//0F 08-OK D0-D18
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+
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+ LCD_WRITE_COMMAND(0xB0),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x11),
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+ LCD_WRITE_DATA(0x18),
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+ LCD_WRITE_DATA(0x0E),
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+ LCD_WRITE_DATA(0x11),
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+ LCD_WRITE_DATA(0x06),
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+ LCD_WRITE_DATA(0x07),
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+ LCD_WRITE_DATA(0x08),
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+ LCD_WRITE_DATA(0x07),
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+ LCD_WRITE_DATA(0x22),
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+ LCD_WRITE_DATA(0x04),
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+ LCD_WRITE_DATA(0x12),
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+ LCD_WRITE_DATA(0x0F),
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+ LCD_WRITE_DATA(0xAA),
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+ LCD_WRITE_DATA(0x31),
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+ LCD_WRITE_DATA(0x18),
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+
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+ LCD_WRITE_COMMAND(0xB1),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x11),
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+ LCD_WRITE_DATA(0x19),
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+ LCD_WRITE_DATA(0x0E),
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+ LCD_WRITE_DATA(0x12),
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+ LCD_WRITE_DATA(0x07),
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+ LCD_WRITE_DATA(0x08),
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+ LCD_WRITE_DATA(0x08),
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+ LCD_WRITE_DATA(0x08),
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+ LCD_WRITE_DATA(0x22),
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+ LCD_WRITE_DATA(0x04),
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+ LCD_WRITE_DATA(0x11),
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+ LCD_WRITE_DATA(0x11),
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+ LCD_WRITE_DATA(0xA9),
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+ LCD_WRITE_DATA(0x32),
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+ LCD_WRITE_DATA(0x18),
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+
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+ LCD_WRITE_COMMAND(0xFF),
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+ LCD_WRITE_DATA(0x77),
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+ LCD_WRITE_DATA(0x01),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x11),
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+
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+ LCD_WRITE_COMMAND(0xB0),
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+ LCD_WRITE_DATA(0x60),
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+
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+ LCD_WRITE_COMMAND(0xB1),
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+ LCD_WRITE_DATA(0x30),
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+
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+ LCD_WRITE_COMMAND(0xB2),
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+ LCD_WRITE_DATA(0x87),
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+
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+ LCD_WRITE_COMMAND(0xB3),
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+ LCD_WRITE_DATA(0x80),
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+
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+ LCD_WRITE_COMMAND(0xB5),
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+ LCD_WRITE_DATA(0x49),
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+
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+ LCD_WRITE_COMMAND(0xB7),
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+ LCD_WRITE_DATA(0x85),
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+
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+ LCD_WRITE_COMMAND(0xB8),
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+ LCD_WRITE_DATA(0x21),
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+
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+ LCD_WRITE_COMMAND(0xC1),
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+ LCD_WRITE_DATA(0x78),
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+
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+ LCD_WRITE_COMMAND(0xC2),
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+ LCD_WRITE_DATA(0x78),
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+};
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+
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+static const u16 st7701s_init_sequence_2[] = {
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+ LCD_WRITE_COMMAND(0xE0),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x1B),
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+ LCD_WRITE_DATA(0x02),
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+
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+ LCD_WRITE_COMMAND(0xE1),
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+ LCD_WRITE_DATA(0x08),
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+ LCD_WRITE_DATA(0xA0),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x07),
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+ LCD_WRITE_DATA(0xA0),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x44),
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+ LCD_WRITE_DATA(0x44),
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+
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+ LCD_WRITE_COMMAND(0xE2),
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+ LCD_WRITE_DATA(0x11),
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+ LCD_WRITE_DATA(0x11),
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+ LCD_WRITE_DATA(0x44),
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+ LCD_WRITE_DATA(0x44),
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+ LCD_WRITE_DATA(0xED),
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+ LCD_WRITE_DATA(0xA0),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0xEC),
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+ LCD_WRITE_DATA(0xA0),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+
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+ LCD_WRITE_COMMAND(0xE3),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x11),
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+ LCD_WRITE_DATA(0x11),
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+
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+ LCD_WRITE_COMMAND(0xE4),
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+ LCD_WRITE_DATA(0x44),
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+ LCD_WRITE_DATA(0x44),
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+
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+ LCD_WRITE_COMMAND(0xE5),
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+ LCD_WRITE_DATA(0x0A),
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+ LCD_WRITE_DATA(0xE9),
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+ LCD_WRITE_DATA(0xD8),
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+ LCD_WRITE_DATA(0xA0),
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+ LCD_WRITE_DATA(0x0C),
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+ LCD_WRITE_DATA(0xEB),
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+ LCD_WRITE_DATA(0xD8),
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+ LCD_WRITE_DATA(0xA0),
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+ LCD_WRITE_DATA(0x0E),
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+ LCD_WRITE_DATA(0xED),
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+ LCD_WRITE_DATA(0xD8),
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+ LCD_WRITE_DATA(0xA0),
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+ LCD_WRITE_DATA(0x10),
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+ LCD_WRITE_DATA(0xEF),
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+ LCD_WRITE_DATA(0xD8),
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+ LCD_WRITE_DATA(0xA0),
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+
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+ LCD_WRITE_COMMAND(0xE6),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x11),
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+ LCD_WRITE_DATA(0x11),
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+
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+ LCD_WRITE_COMMAND(0xE7),
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+ LCD_WRITE_DATA(0x44),
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+ LCD_WRITE_DATA(0x44),
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+
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+ LCD_WRITE_COMMAND(0xE8),
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+ LCD_WRITE_DATA(0x09),
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+ LCD_WRITE_DATA(0xE8),
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+ LCD_WRITE_DATA(0xD8),
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+ LCD_WRITE_DATA(0xA0),
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+ LCD_WRITE_DATA(0x0B),
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+ LCD_WRITE_DATA(0xEA),
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+ LCD_WRITE_DATA(0xD8),
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+ LCD_WRITE_DATA(0xA0),
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+ LCD_WRITE_DATA(0x0D),
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+ LCD_WRITE_DATA(0xEC),
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+ LCD_WRITE_DATA(0xD8),
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+ LCD_WRITE_DATA(0xA0),
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+ LCD_WRITE_DATA(0x0F),
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+ LCD_WRITE_DATA(0xEE),
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+ LCD_WRITE_DATA(0xD8),
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+ LCD_WRITE_DATA(0xA0),
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+
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+ LCD_WRITE_COMMAND(0xEB),
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+ LCD_WRITE_DATA(0x02),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0xE4),
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+ LCD_WRITE_DATA(0xE4),
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+ LCD_WRITE_DATA(0x88),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x40),
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+
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+ LCD_WRITE_COMMAND(0xEC),
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+ LCD_WRITE_DATA(0x3C),
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+ LCD_WRITE_DATA(0x00),
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+
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+ LCD_WRITE_COMMAND(0xED),
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+ LCD_WRITE_DATA(0xAB),
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+ LCD_WRITE_DATA(0x89),
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+ LCD_WRITE_DATA(0x76),
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+ LCD_WRITE_DATA(0x54),
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+ LCD_WRITE_DATA(0x02),
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+ LCD_WRITE_DATA(0xFF),
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+ LCD_WRITE_DATA(0xFF),
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+ LCD_WRITE_DATA(0xFF),
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+ LCD_WRITE_DATA(0xFF),
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+ LCD_WRITE_DATA(0xFF),
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+ LCD_WRITE_DATA(0xFF),
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+ LCD_WRITE_DATA(0x20),
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+ LCD_WRITE_DATA(0x45),
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+ LCD_WRITE_DATA(0x67),
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+ LCD_WRITE_DATA(0x98),
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+ LCD_WRITE_DATA(0xBA),
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+
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+ LCD_WRITE_COMMAND(0xFF),
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+ LCD_WRITE_DATA(0x77),
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+ LCD_WRITE_DATA(0x01),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+ LCD_WRITE_DATA(0x00),
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+
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+ LCD_WRITE_COMMAND(MIPI_DCS_SET_PIXEL_FORMAT),
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+ LCD_WRITE_DATA(0x66),
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+
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+ LCD_WRITE_COMMAND(MIPI_DCS_SET_ADDRESS_MODE),
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+ LCD_WRITE_DATA(0x00),
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+
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+ LCD_WRITE_COMMAND(MIPI_DCS_ENTER_INVERT_MODE),
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+
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+ LCD_WRITE_COMMAND(MIPI_DCS_EXIT_SLEEP_MODE),
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+};
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+
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+static const u16 st7701s_enable_sequence[] = {
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+ LCD_WRITE_COMMAND(MIPI_DCS_SET_DISPLAY_ON),
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+};
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+
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+static const u16 st7701s_disable_sequence[] = {
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+ LCD_WRITE_COMMAND(MIPI_DCS_SET_DISPLAY_OFF),
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+};
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+
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+static inline struct st7701s *panel_to_st7701s(struct drm_panel *panel)
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+{
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+ return container_of(panel, struct st7701s, panel);
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+}
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+
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+static int st7701s_spi_write(struct st7701s *ctx, const u16 *data, size_t size)
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+{
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+ struct spi_transfer xfer = { };
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+ struct spi_message msg;
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+
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+ spi_message_init(&msg);
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+
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+ xfer.tx_buf = data;
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+ xfer.bits_per_word = 9;
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+ xfer.len = size;
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+
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+ spi_message_add_tail(&xfer, &msg);
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+ return spi_sync(ctx->spi, &msg);
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+}
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+
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+static const struct drm_display_mode default_mode = {
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+ .clock = 19800,
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+ .hdisplay = 480,
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+ .hsync_start = 480 + 60,
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+ .hsync_end = 480 + 60 + 12,
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+ .htotal = 480 + 60 + 12 + 60,
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+ .vdisplay = 480,
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+ .vsync_start = 480 + 18,
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+ .vsync_end = 480 + 18 + 4,
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+ .vtotal = 480 + 18 + 4 + 18,
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+};
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+
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+static int st7701s_get_modes(struct drm_panel *panel,
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+ struct drm_connector *connector)
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+{
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+ struct drm_display_mode *mode;
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+
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+ mode = drm_mode_duplicate(connector->dev, &default_mode);
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+ if (!mode)
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+ return -ENOMEM;
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+
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+ drm_mode_set_name(mode);
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+
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+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
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+ drm_mode_probed_add(connector, mode);
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+
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+ connector->display_info.width_mm = 70;
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+ connector->display_info.height_mm = 72;
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+
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+ return 1;
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+}
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+
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+static int st7701s_prepare(struct drm_panel *panel)
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+{
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+ struct st7701s *ctx = panel_to_st7701s(panel);
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+
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+ gpiod_set_value_cansleep(ctx->reset, 1);
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+ msleep(20);
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+
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+ gpiod_set_value_cansleep(ctx->reset, 0);
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+ msleep(20);
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+
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+ st7701s_spi_write(ctx, st7701s_init_sequence_1,
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+ sizeof(st7701s_init_sequence_1));
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+ msleep(20);
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+
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+ st7701s_spi_write(ctx, st7701s_init_sequence_2,
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+ sizeof(st7701s_init_sequence_2));
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+ msleep(120);
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+
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+ return 0;
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+}
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+
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+static int st7701s_enable(struct drm_panel *panel)
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+{
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+ struct st7701s *ctx = panel_to_st7701s(panel);
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+
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+ st7701s_spi_write(ctx, st7701s_enable_sequence,
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+ sizeof(st7701s_enable_sequence));
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+ msleep(20);
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+
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+ return 0;
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+}
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+
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+static int st7701s_disable(struct drm_panel *panel)
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+{
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+ struct st7701s *ctx = panel_to_st7701s(panel);
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+
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+ st7701s_spi_write(ctx, st7701s_disable_sequence,
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+ sizeof(st7701s_disable_sequence));
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+
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+ return 0;
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+}
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+
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+static int st7701s_unprepare(struct drm_panel *panel)
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+{
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+ return 0;
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+}
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+
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+static const struct drm_panel_funcs st7701s_drm_funcs = {
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+ .disable = st7701s_disable,
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+ .enable = st7701s_enable,
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+ .get_modes = st7701s_get_modes,
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+ .prepare = st7701s_prepare,
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+ .unprepare = st7701s_unprepare,
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+};
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+
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+static int st7701s_probe(struct spi_device *spi)
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+{
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+ struct device *dev = &spi->dev;
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+ struct st7701s *ctx;
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+ int ret;
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+
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+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
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+ if (!ctx)
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+ return -ENOMEM;
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+
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+ spi_set_drvdata(spi, ctx);
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+ ctx->spi = spi;
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+
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+ ctx->reset = devm_gpiod_get(&spi->dev, "reset", GPIOD_OUT_LOW);
|
|
+ if (IS_ERR(ctx->reset)) {
|
|
+ dev_err(&spi->dev, "Couldn't get our reset line\n");
|
|
+ return PTR_ERR(ctx->reset);
|
|
+ }
|
|
+
|
|
+ drm_panel_init(&ctx->panel, dev, &st7701s_drm_funcs,
|
|
+ DRM_MODE_CONNECTOR_DPI);
|
|
+
|
|
+ ret = drm_panel_of_backlight(&ctx->panel);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
+ drm_panel_add(&ctx->panel);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void st7701s_remove(struct spi_device *spi)
|
|
+{
|
|
+ struct st7701s *ctx = spi_get_drvdata(spi);
|
|
+
|
|
+ drm_panel_remove(&ctx->panel);
|
|
+}
|
|
+
|
|
+static const struct of_device_id st7701s_of_match[] = {
|
|
+ { .compatible = "sitronix,st7701s" },
|
|
+ { }
|
|
+};
|
|
+MODULE_DEVICE_TABLE(of, st7701s_of_match);
|
|
+
|
|
+static const struct spi_device_id st7701s_ids[] = {
|
|
+ { "st7701s" },
|
|
+ { }
|
|
+};
|
|
+MODULE_DEVICE_TABLE(spi, st7701s_ids);
|
|
+
|
|
+static struct spi_driver st7701s_driver = {
|
|
+ .probe = st7701s_probe,
|
|
+ .remove = st7701s_remove,
|
|
+ .driver = {
|
|
+ .name = "st7701s",
|
|
+ .of_match_table = st7701s_of_match,
|
|
+ },
|
|
+};
|
|
+module_spi_driver(st7701s_driver);
|
|
+
|
|
+MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
|
|
+MODULE_DESCRIPTION("Sitronix ST7701s LCD Driver");
|
|
+MODULE_LICENSE("GPL v2");
|