mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-24 01:36:48 +07:00
af74138160
This switches to drm_atomic_helper_dirtyfb() as the framebuffer dirty
handler. All flushing will now happen in the pipe functions.
Also enable the damage plane property for all except repaper which can
only do full updates.
ili9225:
This change made ili9225_init() equal to mipi_dbi_init() so use it.
v3: Include vblank header (Sam)
ili9225 and st7586 can't use mipi_dbi_enable_flush() (David)
v2: Remove fb check in mipi_dbi_enable_flush() it can't be NULL
(kbuild test robot)
Cc: David Lechner <david@lechnology.com>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Tested-by: David Lechner <david@lechnology.com>
Reviewed-by: David Lechner <david@lechnology.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190115043643.2364-5-noralf@tronnes.org
272 lines
6.0 KiB
C
272 lines
6.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* DRM driver for the HX8357D LCD controller
|
|
*
|
|
* Copyright 2018 Broadcom
|
|
* Copyright 2018 David Lechner <david@lechnology.com>
|
|
* Copyright 2016 Noralf Trønnes
|
|
* Copyright (C) 2015 Adafruit Industries
|
|
* Copyright (C) 2013 Christian Vogelgsang
|
|
*/
|
|
|
|
#include <linux/backlight.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/gpio/consumer.h>
|
|
#include <linux/module.h>
|
|
#include <linux/property.h>
|
|
#include <linux/spi/spi.h>
|
|
|
|
#include <drm/drm_drv.h>
|
|
#include <drm/drm_gem_cma_helper.h>
|
|
#include <drm/drm_gem_framebuffer_helper.h>
|
|
#include <drm/drm_modeset_helper.h>
|
|
#include <drm/tinydrm/mipi-dbi.h>
|
|
#include <drm/tinydrm/tinydrm-helpers.h>
|
|
#include <video/mipi_display.h>
|
|
|
|
#define HX8357D_SETOSC 0xb0
|
|
#define HX8357D_SETPOWER 0xb1
|
|
#define HX8357D_SETRGB 0xb3
|
|
#define HX8357D_SETCYC 0xb3
|
|
#define HX8357D_SETCOM 0xb6
|
|
#define HX8357D_SETEXTC 0xb9
|
|
#define HX8357D_SETSTBA 0xc0
|
|
#define HX8357D_SETPANEL 0xcc
|
|
#define HX8357D_SETGAMMA 0xe0
|
|
|
|
#define HX8357D_MADCTL_MY 0x80
|
|
#define HX8357D_MADCTL_MX 0x40
|
|
#define HX8357D_MADCTL_MV 0x20
|
|
#define HX8357D_MADCTL_ML 0x10
|
|
#define HX8357D_MADCTL_RGB 0x00
|
|
#define HX8357D_MADCTL_BGR 0x08
|
|
#define HX8357D_MADCTL_MH 0x04
|
|
|
|
static void yx240qv29_enable(struct drm_simple_display_pipe *pipe,
|
|
struct drm_crtc_state *crtc_state,
|
|
struct drm_plane_state *plane_state)
|
|
{
|
|
struct tinydrm_device *tdev = pipe_to_tinydrm(pipe);
|
|
struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
|
|
u8 addr_mode;
|
|
int ret;
|
|
|
|
DRM_DEBUG_KMS("\n");
|
|
|
|
ret = mipi_dbi_poweron_conditional_reset(mipi);
|
|
if (ret < 0)
|
|
return;
|
|
if (ret == 1)
|
|
goto out_enable;
|
|
|
|
/* setextc */
|
|
mipi_dbi_command(mipi, HX8357D_SETEXTC, 0xFF, 0x83, 0x57);
|
|
msleep(150);
|
|
|
|
/* setRGB which also enables SDO */
|
|
mipi_dbi_command(mipi, HX8357D_SETRGB, 0x00, 0x00, 0x06, 0x06);
|
|
|
|
/* -1.52V */
|
|
mipi_dbi_command(mipi, HX8357D_SETCOM, 0x25);
|
|
|
|
/* Normal mode 70Hz, Idle mode 55 Hz */
|
|
mipi_dbi_command(mipi, HX8357D_SETOSC, 0x68);
|
|
|
|
/* Set Panel - BGR, Gate direction swapped */
|
|
mipi_dbi_command(mipi, HX8357D_SETPANEL, 0x05);
|
|
|
|
mipi_dbi_command(mipi, HX8357D_SETPOWER,
|
|
0x00, /* Not deep standby */
|
|
0x15, /* BT */
|
|
0x1C, /* VSPR */
|
|
0x1C, /* VSNR */
|
|
0x83, /* AP */
|
|
0xAA); /* FS */
|
|
|
|
mipi_dbi_command(mipi, HX8357D_SETSTBA,
|
|
0x50, /* OPON normal */
|
|
0x50, /* OPON idle */
|
|
0x01, /* STBA */
|
|
0x3C, /* STBA */
|
|
0x1E, /* STBA */
|
|
0x08); /* GEN */
|
|
|
|
mipi_dbi_command(mipi, HX8357D_SETCYC,
|
|
0x02, /* NW 0x02 */
|
|
0x40, /* RTN */
|
|
0x00, /* DIV */
|
|
0x2A, /* DUM */
|
|
0x2A, /* DUM */
|
|
0x0D, /* GDON */
|
|
0x78); /* GDOFF */
|
|
|
|
mipi_dbi_command(mipi, HX8357D_SETGAMMA,
|
|
0x02,
|
|
0x0A,
|
|
0x11,
|
|
0x1d,
|
|
0x23,
|
|
0x35,
|
|
0x41,
|
|
0x4b,
|
|
0x4b,
|
|
0x42,
|
|
0x3A,
|
|
0x27,
|
|
0x1B,
|
|
0x08,
|
|
0x09,
|
|
0x03,
|
|
0x02,
|
|
0x0A,
|
|
0x11,
|
|
0x1d,
|
|
0x23,
|
|
0x35,
|
|
0x41,
|
|
0x4b,
|
|
0x4b,
|
|
0x42,
|
|
0x3A,
|
|
0x27,
|
|
0x1B,
|
|
0x08,
|
|
0x09,
|
|
0x03,
|
|
0x00,
|
|
0x01);
|
|
|
|
/* 16 bit */
|
|
mipi_dbi_command(mipi, MIPI_DCS_SET_PIXEL_FORMAT,
|
|
MIPI_DCS_PIXEL_FMT_16BIT);
|
|
|
|
/* TE off */
|
|
mipi_dbi_command(mipi, MIPI_DCS_SET_TEAR_ON, 0x00);
|
|
|
|
/* tear line */
|
|
mipi_dbi_command(mipi, MIPI_DCS_SET_TEAR_SCANLINE, 0x00, 0x02);
|
|
|
|
/* Exit Sleep */
|
|
mipi_dbi_command(mipi, MIPI_DCS_EXIT_SLEEP_MODE);
|
|
msleep(150);
|
|
|
|
/* display on */
|
|
mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_ON);
|
|
usleep_range(5000, 7000);
|
|
|
|
out_enable:
|
|
switch (mipi->rotation) {
|
|
default:
|
|
addr_mode = HX8357D_MADCTL_MX | HX8357D_MADCTL_MY;
|
|
break;
|
|
case 90:
|
|
addr_mode = HX8357D_MADCTL_MV | HX8357D_MADCTL_MY;
|
|
break;
|
|
case 180:
|
|
addr_mode = 0;
|
|
break;
|
|
case 270:
|
|
addr_mode = HX8357D_MADCTL_MV | HX8357D_MADCTL_MX;
|
|
break;
|
|
}
|
|
mipi_dbi_command(mipi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode);
|
|
mipi_dbi_enable_flush(mipi, crtc_state, plane_state);
|
|
}
|
|
|
|
static const struct drm_simple_display_pipe_funcs hx8357d_pipe_funcs = {
|
|
.enable = yx240qv29_enable,
|
|
.disable = mipi_dbi_pipe_disable,
|
|
.update = mipi_dbi_pipe_update,
|
|
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
|
|
};
|
|
|
|
static const struct drm_display_mode yx350hv15_mode = {
|
|
TINYDRM_MODE(320, 480, 60, 75),
|
|
};
|
|
|
|
DEFINE_DRM_GEM_CMA_FOPS(hx8357d_fops);
|
|
|
|
static struct drm_driver hx8357d_driver = {
|
|
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC,
|
|
.fops = &hx8357d_fops,
|
|
DRM_GEM_CMA_VMAP_DRIVER_OPS,
|
|
.debugfs_init = mipi_dbi_debugfs_init,
|
|
.name = "hx8357d",
|
|
.desc = "HX8357D",
|
|
.date = "20181023",
|
|
.major = 1,
|
|
.minor = 0,
|
|
};
|
|
|
|
static const struct of_device_id hx8357d_of_match[] = {
|
|
{ .compatible = "adafruit,yx350hv15" },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, hx8357d_of_match);
|
|
|
|
static const struct spi_device_id hx8357d_id[] = {
|
|
{ "yx350hv15", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(spi, hx8357d_id);
|
|
|
|
static int hx8357d_probe(struct spi_device *spi)
|
|
{
|
|
struct device *dev = &spi->dev;
|
|
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;
|
|
|
|
dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW);
|
|
if (IS_ERR(dc)) {
|
|
DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n");
|
|
return PTR_ERR(dc);
|
|
}
|
|
|
|
mipi->backlight = devm_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);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = mipi_dbi_init(&spi->dev, mipi, &hx8357d_pipe_funcs,
|
|
&hx8357d_driver, &yx350hv15_mode, rotation);
|
|
if (ret)
|
|
return ret;
|
|
|
|
spi_set_drvdata(spi, mipi);
|
|
|
|
return devm_tinydrm_register(&mipi->tinydrm);
|
|
}
|
|
|
|
static void hx8357d_shutdown(struct spi_device *spi)
|
|
{
|
|
struct mipi_dbi *mipi = spi_get_drvdata(spi);
|
|
|
|
tinydrm_shutdown(&mipi->tinydrm);
|
|
}
|
|
|
|
static struct spi_driver hx8357d_spi_driver = {
|
|
.driver = {
|
|
.name = "hx8357d",
|
|
.of_match_table = hx8357d_of_match,
|
|
},
|
|
.id_table = hx8357d_id,
|
|
.probe = hx8357d_probe,
|
|
.shutdown = hx8357d_shutdown,
|
|
};
|
|
module_spi_driver(hx8357d_spi_driver);
|
|
|
|
MODULE_DESCRIPTION("HX8357D DRM driver");
|
|
MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
|
|
MODULE_LICENSE("GPL");
|