mirror of
https://github.com/torvalds/linux.git
synced 2025-10-31 08:38:45 +02:00
cb2e1c2136
We stopped using the driver initialized date in commit 7fb8af6798
("drm: deprecate driver date") and (eventually) started returning "0"
for drm_version ioctl instead.
Finish the job, and remove the unused date member from struct
drm_driver, its initialization from drivers, along with the common
DRIVER_DATE macros.
v2: Also update drivers/accel (kernel test robot)
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Simon Ser <contact@emersion.fr>
Acked-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> # msm
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1f2bf2543aed270a06f6c707fd6ed1b78bf16712.1733322525.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
292 lines
6.4 KiB
C
292 lines
6.4 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/clients/drm_client_setup.h>
|
|
#include <drm/drm_atomic_helper.h>
|
|
#include <drm/drm_drv.h>
|
|
#include <drm/drm_fbdev_dma.h>
|
|
#include <drm/drm_gem_atomic_helper.h>
|
|
#include <drm/drm_gem_dma_helper.h>
|
|
#include <drm/drm_managed.h>
|
|
#include <drm/drm_mipi_dbi.h>
|
|
#include <drm/drm_modeset_helper.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 mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
|
|
struct mipi_dbi *dbi = &dbidev->dbi;
|
|
u8 addr_mode;
|
|
int ret, idx;
|
|
|
|
if (!drm_dev_enter(pipe->crtc.dev, &idx))
|
|
return;
|
|
|
|
DRM_DEBUG_KMS("\n");
|
|
|
|
ret = mipi_dbi_poweron_conditional_reset(dbidev);
|
|
if (ret < 0)
|
|
goto out_exit;
|
|
if (ret == 1)
|
|
goto out_enable;
|
|
|
|
/* setextc */
|
|
mipi_dbi_command(dbi, HX8357D_SETEXTC, 0xFF, 0x83, 0x57);
|
|
msleep(150);
|
|
|
|
/* setRGB which also enables SDO */
|
|
mipi_dbi_command(dbi, HX8357D_SETRGB, 0x00, 0x00, 0x06, 0x06);
|
|
|
|
/* -1.52V */
|
|
mipi_dbi_command(dbi, HX8357D_SETCOM, 0x25);
|
|
|
|
/* Normal mode 70Hz, Idle mode 55 Hz */
|
|
mipi_dbi_command(dbi, HX8357D_SETOSC, 0x68);
|
|
|
|
/* Set Panel - BGR, Gate direction swapped */
|
|
mipi_dbi_command(dbi, HX8357D_SETPANEL, 0x05);
|
|
|
|
mipi_dbi_command(dbi, HX8357D_SETPOWER,
|
|
0x00, /* Not deep standby */
|
|
0x15, /* BT */
|
|
0x1C, /* VSPR */
|
|
0x1C, /* VSNR */
|
|
0x83, /* AP */
|
|
0xAA); /* FS */
|
|
|
|
mipi_dbi_command(dbi, HX8357D_SETSTBA,
|
|
0x50, /* OPON normal */
|
|
0x50, /* OPON idle */
|
|
0x01, /* STBA */
|
|
0x3C, /* STBA */
|
|
0x1E, /* STBA */
|
|
0x08); /* GEN */
|
|
|
|
mipi_dbi_command(dbi, HX8357D_SETCYC,
|
|
0x02, /* NW 0x02 */
|
|
0x40, /* RTN */
|
|
0x00, /* DIV */
|
|
0x2A, /* DUM */
|
|
0x2A, /* DUM */
|
|
0x0D, /* GDON */
|
|
0x78); /* GDOFF */
|
|
|
|
mipi_dbi_command(dbi, 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(dbi, MIPI_DCS_SET_PIXEL_FORMAT,
|
|
MIPI_DCS_PIXEL_FMT_16BIT);
|
|
|
|
/* TE off */
|
|
mipi_dbi_command(dbi, MIPI_DCS_SET_TEAR_ON, 0x00);
|
|
|
|
/* tear line */
|
|
mipi_dbi_command(dbi, MIPI_DCS_SET_TEAR_SCANLINE, 0x00, 0x02);
|
|
|
|
/* Exit Sleep */
|
|
mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE);
|
|
msleep(150);
|
|
|
|
/* display on */
|
|
mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);
|
|
usleep_range(5000, 7000);
|
|
|
|
out_enable:
|
|
switch (dbidev->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(dbi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode);
|
|
mipi_dbi_enable_flush(dbidev, crtc_state, plane_state);
|
|
out_exit:
|
|
drm_dev_exit(idx);
|
|
}
|
|
|
|
static const struct drm_simple_display_pipe_funcs hx8357d_pipe_funcs = {
|
|
DRM_MIPI_DBI_SIMPLE_DISPLAY_PIPE_FUNCS(yx240qv29_enable),
|
|
};
|
|
|
|
static const struct drm_display_mode yx350hv15_mode = {
|
|
DRM_SIMPLE_MODE(320, 480, 60, 75),
|
|
};
|
|
|
|
DEFINE_DRM_GEM_DMA_FOPS(hx8357d_fops);
|
|
|
|
static const struct drm_driver hx8357d_driver = {
|
|
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
|
|
.fops = &hx8357d_fops,
|
|
DRM_GEM_DMA_DRIVER_OPS_VMAP,
|
|
DRM_FBDEV_DMA_DRIVER_OPS,
|
|
.debugfs_init = mipi_dbi_debugfs_init,
|
|
.name = "hx8357d",
|
|
.desc = "HX8357D",
|
|
.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_dev *dbidev;
|
|
struct drm_device *drm;
|
|
struct gpio_desc *dc;
|
|
u32 rotation = 0;
|
|
int ret;
|
|
|
|
dbidev = devm_drm_dev_alloc(dev, &hx8357d_driver,
|
|
struct mipi_dbi_dev, drm);
|
|
if (IS_ERR(dbidev))
|
|
return PTR_ERR(dbidev);
|
|
|
|
drm = &dbidev->drm;
|
|
|
|
dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW);
|
|
if (IS_ERR(dc))
|
|
return dev_err_probe(dev, PTR_ERR(dc), "Failed to get GPIO 'dc'\n");
|
|
|
|
dbidev->backlight = devm_of_find_backlight(dev);
|
|
if (IS_ERR(dbidev->backlight))
|
|
return PTR_ERR(dbidev->backlight);
|
|
|
|
device_property_read_u32(dev, "rotation", &rotation);
|
|
|
|
ret = mipi_dbi_spi_init(spi, &dbidev->dbi, dc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = mipi_dbi_dev_init(dbidev, &hx8357d_pipe_funcs, &yx350hv15_mode, rotation);
|
|
if (ret)
|
|
return ret;
|
|
|
|
drm_mode_config_reset(drm);
|
|
|
|
ret = drm_dev_register(drm, 0);
|
|
if (ret)
|
|
return ret;
|
|
|
|
spi_set_drvdata(spi, drm);
|
|
|
|
drm_client_setup(drm, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hx8357d_remove(struct spi_device *spi)
|
|
{
|
|
struct drm_device *drm = spi_get_drvdata(spi);
|
|
|
|
drm_dev_unplug(drm);
|
|
drm_atomic_helper_shutdown(drm);
|
|
}
|
|
|
|
static void hx8357d_shutdown(struct spi_device *spi)
|
|
{
|
|
drm_atomic_helper_shutdown(spi_get_drvdata(spi));
|
|
}
|
|
|
|
static struct spi_driver hx8357d_spi_driver = {
|
|
.driver = {
|
|
.name = "hx8357d",
|
|
.of_match_table = hx8357d_of_match,
|
|
},
|
|
.id_table = hx8357d_id,
|
|
.probe = hx8357d_probe,
|
|
.remove = hx8357d_remove,
|
|
.shutdown = hx8357d_shutdown,
|
|
};
|
|
module_spi_driver(hx8357d_spi_driver);
|
|
|
|
MODULE_DESCRIPTION("HX8357D DRM driver");
|
|
MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
|
|
MODULE_LICENSE("GPL");
|