mirror of https://gitee.com/openkylin/linux.git
drm/tinydrm: Add support for Multi-Inno MI0283QT display
Add driver to support the Multi-Inno MI0283QT display panel. It has an ILI9341 MIPI DBI compatible display controller. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Noralf Trønnes
parent
6b4e48b5a9
commit
1f47e6cbf5
|
|
@ -4245,6 +4245,12 @@ S: Supported
|
|||
F: drivers/gpu/drm/mediatek/
|
||||
F: Documentation/devicetree/bindings/display/mediatek/
|
||||
|
||||
DRM DRIVER FOR MI0283QT
|
||||
M: Noralf Trønnes <noralf@tronnes.org>
|
||||
S: Maintained
|
||||
F: drivers/gpu/drm/tinydrm/mi0283qt.c
|
||||
F: Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
|
||||
|
||||
DRM DRIVER FOR MSM ADRENO GPU
|
||||
M: Rob Clark <robdclark@gmail.com>
|
||||
L: linux-arm-msm@vger.kernel.org
|
||||
|
|
|
|||
|
|
@ -11,3 +11,11 @@ menuconfig DRM_TINYDRM
|
|||
|
||||
config TINYDRM_MIPI_DBI
|
||||
tristate
|
||||
|
||||
config TINYDRM_MI0283QT
|
||||
tristate "DRM support for MI0283QT"
|
||||
depends on DRM_TINYDRM && SPI
|
||||
select TINYDRM_MIPI_DBI
|
||||
help
|
||||
DRM driver for the Multi-Inno MI0283QT display panel
|
||||
If M is selected the module will be called mi0283qt.
|
||||
|
|
|
|||
|
|
@ -2,3 +2,6 @@ obj-$(CONFIG_DRM_TINYDRM) += core/
|
|||
|
||||
# Controllers
|
||||
obj-$(CONFIG_TINYDRM_MIPI_DBI) += mipi-dbi.o
|
||||
|
||||
# Displays
|
||||
obj-$(CONFIG_TINYDRM_MI0283QT) += mi0283qt.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,279 @@
|
|||
/*
|
||||
* DRM driver for Multi-Inno MI0283QT panels
|
||||
*
|
||||
* Copyright 2016 Noralf Trønnes
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
|
||||
#include <drm/tinydrm/ili9341.h>
|
||||
#include <drm/tinydrm/mipi-dbi.h>
|
||||
#include <drm/tinydrm/tinydrm-helpers.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/gpio/consumer.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/property.h>
|
||||
#include <linux/regulator/consumer.h>
|
||||
#include <linux/spi/spi.h>
|
||||
#include <video/mipi_display.h>
|
||||
|
||||
static int mi0283qt_init(struct mipi_dbi *mipi)
|
||||
{
|
||||
struct tinydrm_device *tdev = &mipi->tinydrm;
|
||||
struct device *dev = tdev->drm->dev;
|
||||
u8 addr_mode;
|
||||
int ret;
|
||||
|
||||
DRM_DEBUG_KMS("\n");
|
||||
|
||||
ret = regulator_enable(mipi->regulator);
|
||||
if (ret) {
|
||||
dev_err(dev, "Failed to enable regulator %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Avoid flicker by skipping setup if the bootloader has done it */
|
||||
if (mipi_dbi_display_is_on(mipi))
|
||||
return 0;
|
||||
|
||||
mipi_dbi_hw_reset(mipi);
|
||||
ret = mipi_dbi_command(mipi, MIPI_DCS_SOFT_RESET);
|
||||
if (ret) {
|
||||
dev_err(dev, "Error sending command %d\n", ret);
|
||||
regulator_disable(mipi->regulator);
|
||||
return ret;
|
||||
}
|
||||
|
||||
msleep(20);
|
||||
|
||||
mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_OFF);
|
||||
|
||||
mipi_dbi_command(mipi, ILI9341_PWCTRLB, 0x00, 0x83, 0x30);
|
||||
mipi_dbi_command(mipi, ILI9341_PWRSEQ, 0x64, 0x03, 0x12, 0x81);
|
||||
mipi_dbi_command(mipi, ILI9341_DTCTRLA, 0x85, 0x01, 0x79);
|
||||
mipi_dbi_command(mipi, ILI9341_PWCTRLA, 0x39, 0x2c, 0x00, 0x34, 0x02);
|
||||
mipi_dbi_command(mipi, ILI9341_PUMPCTRL, 0x20);
|
||||
mipi_dbi_command(mipi, ILI9341_DTCTRLB, 0x00, 0x00);
|
||||
|
||||
/* Power Control */
|
||||
mipi_dbi_command(mipi, ILI9341_PWCTRL1, 0x26);
|
||||
mipi_dbi_command(mipi, ILI9341_PWCTRL2, 0x11);
|
||||
/* VCOM */
|
||||
mipi_dbi_command(mipi, ILI9341_VMCTRL1, 0x35, 0x3e);
|
||||
mipi_dbi_command(mipi, ILI9341_VMCTRL2, 0xbe);
|
||||
|
||||
/* Memory Access Control */
|
||||
mipi_dbi_command(mipi, MIPI_DCS_SET_PIXEL_FORMAT, 0x55);
|
||||
|
||||
switch (mipi->rotation) {
|
||||
default:
|
||||
addr_mode = ILI9341_MADCTL_MV | ILI9341_MADCTL_MY |
|
||||
ILI9341_MADCTL_MX;
|
||||
break;
|
||||
case 90:
|
||||
addr_mode = ILI9341_MADCTL_MY;
|
||||
break;
|
||||
case 180:
|
||||
addr_mode = ILI9341_MADCTL_MV;
|
||||
break;
|
||||
case 270:
|
||||
addr_mode = ILI9341_MADCTL_MX;
|
||||
break;
|
||||
}
|
||||
addr_mode |= ILI9341_MADCTL_BGR;
|
||||
mipi_dbi_command(mipi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode);
|
||||
|
||||
/* Frame Rate */
|
||||
mipi_dbi_command(mipi, ILI9341_FRMCTR1, 0x00, 0x1b);
|
||||
|
||||
/* Gamma */
|
||||
mipi_dbi_command(mipi, ILI9341_EN3GAM, 0x08);
|
||||
mipi_dbi_command(mipi, MIPI_DCS_SET_GAMMA_CURVE, 0x01);
|
||||
mipi_dbi_command(mipi, ILI9341_PGAMCTRL,
|
||||
0x1f, 0x1a, 0x18, 0x0a, 0x0f, 0x06, 0x45, 0x87,
|
||||
0x32, 0x0a, 0x07, 0x02, 0x07, 0x05, 0x00);
|
||||
mipi_dbi_command(mipi, ILI9341_NGAMCTRL,
|
||||
0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3a, 0x78,
|
||||
0x4d, 0x05, 0x18, 0x0d, 0x38, 0x3a, 0x1f);
|
||||
|
||||
/* DDRAM */
|
||||
mipi_dbi_command(mipi, ILI9341_ETMOD, 0x07);
|
||||
|
||||
/* Display */
|
||||
mipi_dbi_command(mipi, ILI9341_DISCTRL, 0x0a, 0x82, 0x27, 0x00);
|
||||
mipi_dbi_command(mipi, MIPI_DCS_EXIT_SLEEP_MODE);
|
||||
msleep(100);
|
||||
|
||||
mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_ON);
|
||||
msleep(100);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void mi0283qt_fini(void *data)
|
||||
{
|
||||
struct mipi_dbi *mipi = data;
|
||||
|
||||
DRM_DEBUG_KMS("\n");
|
||||
regulator_disable(mipi->regulator);
|
||||
}
|
||||
|
||||
static const struct drm_simple_display_pipe_funcs mi0283qt_pipe_funcs = {
|
||||
.enable = mipi_dbi_pipe_enable,
|
||||
.disable = mipi_dbi_pipe_disable,
|
||||
.update = tinydrm_display_pipe_update,
|
||||
.prepare_fb = tinydrm_display_pipe_prepare_fb,
|
||||
};
|
||||
|
||||
static const struct drm_display_mode mi0283qt_mode = {
|
||||
TINYDRM_MODE(320, 240, 58, 43),
|
||||
};
|
||||
|
||||
static struct drm_driver mi0283qt_driver = {
|
||||
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
|
||||
DRIVER_ATOMIC,
|
||||
TINYDRM_GEM_DRIVER_OPS,
|
||||
.lastclose = tinydrm_lastclose,
|
||||
.debugfs_init = mipi_dbi_debugfs_init,
|
||||
.name = "mi0283qt",
|
||||
.desc = "Multi-Inno MI0283QT",
|
||||
.date = "20160614",
|
||||
.major = 1,
|
||||
.minor = 0,
|
||||
};
|
||||
|
||||
static const struct of_device_id mi0283qt_of_match[] = {
|
||||
{ .compatible = "multi-inno,mi0283qt" },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, mi0283qt_of_match);
|
||||
|
||||
static const struct spi_device_id mi0283qt_id[] = {
|
||||
{ "mi0283qt", 0 },
|
||||
{ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(spi, mi0283qt_id);
|
||||
|
||||
static int mi0283qt_probe(struct spi_device *spi)
|
||||
{
|
||||
struct device *dev = &spi->dev;
|
||||
struct tinydrm_device *tdev;
|
||||
struct mipi_dbi *mipi;
|
||||
struct gpio_desc *dc;
|
||||
u32 rotation = 0;
|
||||
int ret;
|
||||
|
||||
mipi = devm_kzalloc(dev, sizeof(*mipi), GFP_KERNEL);
|
||||
if (!mipi)
|
||||
return -ENOMEM;
|
||||
|
||||
mipi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
|
||||
if (IS_ERR(mipi->reset)) {
|
||||
dev_err(dev, "Failed to get gpio 'reset'\n");
|
||||
return PTR_ERR(mipi->reset);
|
||||
}
|
||||
|
||||
dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW);
|
||||
if (IS_ERR(dc)) {
|
||||
dev_err(dev, "Failed to get gpio 'dc'\n");
|
||||
return PTR_ERR(dc);
|
||||
}
|
||||
|
||||
mipi->regulator = devm_regulator_get(dev, "power");
|
||||
if (IS_ERR(mipi->regulator))
|
||||
return PTR_ERR(mipi->regulator);
|
||||
|
||||
mipi->backlight = tinydrm_of_find_backlight(dev);
|
||||
if (IS_ERR(mipi->backlight))
|
||||
return PTR_ERR(mipi->backlight);
|
||||
|
||||
device_property_read_u32(dev, "rotation", &rotation);
|
||||
|
||||
ret = mipi_dbi_spi_init(spi, mipi, dc, &mi0283qt_pipe_funcs,
|
||||
&mi0283qt_driver, &mi0283qt_mode, rotation);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = mi0283qt_init(mipi);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* use devres to fini after drm unregister (drv->remove is before) */
|
||||
ret = devm_add_action(dev, mi0283qt_fini, mipi);
|
||||
if (ret) {
|
||||
mi0283qt_fini(mipi);
|
||||
return ret;
|
||||
}
|
||||
|
||||
tdev = &mipi->tinydrm;
|
||||
|
||||
ret = devm_tinydrm_register(tdev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
spi_set_drvdata(spi, mipi);
|
||||
|
||||
DRM_DEBUG_DRIVER("Initialized %s:%s @%uMHz on minor %d\n",
|
||||
tdev->drm->driver->name, dev_name(dev),
|
||||
spi->max_speed_hz / 1000000,
|
||||
tdev->drm->primary->index);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void mi0283qt_shutdown(struct spi_device *spi)
|
||||
{
|
||||
struct mipi_dbi *mipi = spi_get_drvdata(spi);
|
||||
|
||||
tinydrm_shutdown(&mipi->tinydrm);
|
||||
}
|
||||
|
||||
static int __maybe_unused mi0283qt_pm_suspend(struct device *dev)
|
||||
{
|
||||
struct mipi_dbi *mipi = dev_get_drvdata(dev);
|
||||
int ret;
|
||||
|
||||
ret = tinydrm_suspend(&mipi->tinydrm);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
mi0283qt_fini(mipi);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __maybe_unused mi0283qt_pm_resume(struct device *dev)
|
||||
{
|
||||
struct mipi_dbi *mipi = dev_get_drvdata(dev);
|
||||
int ret;
|
||||
|
||||
ret = mi0283qt_init(mipi);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return tinydrm_resume(&mipi->tinydrm);
|
||||
}
|
||||
|
||||
static const struct dev_pm_ops mi0283qt_pm_ops = {
|
||||
SET_SYSTEM_SLEEP_PM_OPS(mi0283qt_pm_suspend, mi0283qt_pm_resume)
|
||||
};
|
||||
|
||||
static struct spi_driver mi0283qt_spi_driver = {
|
||||
.driver = {
|
||||
.name = "mi0283qt",
|
||||
.owner = THIS_MODULE,
|
||||
.of_match_table = mi0283qt_of_match,
|
||||
.pm = &mi0283qt_pm_ops,
|
||||
},
|
||||
.id_table = mi0283qt_id,
|
||||
.probe = mi0283qt_probe,
|
||||
.shutdown = mi0283qt_shutdown,
|
||||
};
|
||||
module_spi_driver(mi0283qt_spi_driver);
|
||||
|
||||
MODULE_DESCRIPTION("Multi-Inno MI0283QT DRM driver");
|
||||
MODULE_AUTHOR("Noralf Trønnes");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
/*
|
||||
* ILI9341 LCD controller
|
||||
*
|
||||
* Copyright 2016 Noralf Trønnes
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
|
||||
#ifndef __LINUX_ILI9341_H
|
||||
#define __LINUX_ILI9341_H
|
||||
|
||||
#define ILI9341_FRMCTR1 0xb1
|
||||
#define ILI9341_FRMCTR2 0xb2
|
||||
#define ILI9341_FRMCTR3 0xb3
|
||||
#define ILI9341_INVTR 0xb4
|
||||
#define ILI9341_PRCTR 0xb5
|
||||
#define ILI9341_DISCTRL 0xb6
|
||||
#define ILI9341_ETMOD 0xb7
|
||||
|
||||
#define ILI9341_PWCTRL1 0xc0
|
||||
#define ILI9341_PWCTRL2 0xc1
|
||||
#define ILI9341_VMCTRL1 0xc5
|
||||
#define ILI9341_VMCTRL2 0xc7
|
||||
#define ILI9341_PWCTRLA 0xcb
|
||||
#define ILI9341_PWCTRLB 0xcf
|
||||
|
||||
#define ILI9341_RDID1 0xda
|
||||
#define ILI9341_RDID2 0xdb
|
||||
#define ILI9341_RDID3 0xdc
|
||||
#define ILI9341_RDID4 0xd3
|
||||
|
||||
#define ILI9341_PGAMCTRL 0xe0
|
||||
#define ILI9341_NGAMCTRL 0xe1
|
||||
#define ILI9341_DGAMCTRL1 0xe2
|
||||
#define ILI9341_DGAMCTRL2 0xe3
|
||||
#define ILI9341_DTCTRLA 0xe8
|
||||
#define ILI9341_DTCTRLB 0xea
|
||||
#define ILI9341_PWRSEQ 0xed
|
||||
|
||||
#define ILI9341_EN3GAM 0xf2
|
||||
#define ILI9341_IFCTRL 0xf6
|
||||
#define ILI9341_PUMPCTRL 0xf7
|
||||
|
||||
#define ILI9341_MADCTL_MH BIT(2)
|
||||
#define ILI9341_MADCTL_BGR BIT(3)
|
||||
#define ILI9341_MADCTL_ML BIT(4)
|
||||
#define ILI9341_MADCTL_MV BIT(5)
|
||||
#define ILI9341_MADCTL_MX BIT(6)
|
||||
#define ILI9341_MADCTL_MY BIT(7)
|
||||
|
||||
#endif /* __LINUX_ILI9341_H */
|
||||
Loading…
Reference in New Issue