[PATCH 3/4] drm/tiny/mi0283qt: Move driver to panel-ilitek-ili9341
Noralf Trønnes
noralf at tronnes.org
Thu Aug 1 13:52:48 UTC 2019
The MI0283QT panels use a ILI9341 controller so it makes sense to merge
it with the other ili9341 code.
The DRM driver name is ABI, so that is retained.
Cc: David Lechner <david at lechnology.com>
Signed-off-by: Noralf Trønnes <noralf at tronnes.org>
---
MAINTAINERS | 9 +-
drivers/gpu/drm/panel/Kconfig | 1 +
drivers/gpu/drm/panel/panel-ilitek-ili9341.c | 161 +++++++++-
drivers/gpu/drm/tiny/Kconfig | 11 -
drivers/gpu/drm/tiny/Makefile | 1 -
drivers/gpu/drm/tiny/mi0283qt.c | 294 -------------------
6 files changed, 161 insertions(+), 316 deletions(-)
delete mode 100644 drivers/gpu/drm/tiny/mi0283qt.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 66b3893a100f..cd7b8bdb3780 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5110,10 +5110,12 @@ F: Documentation/devicetree/bindings/display/ilitek,ili9225.txt
DRM DRIVER FOR ILITEK ILI9341 PANELS
M: David Lechner <david at lechnology.com>
+M: Noralf Trønnes <noralf at tronnes.org>
T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
F: drivers/gpu/drm/panel/panel-ilitek-ili9341.c
F: Documentation/devicetree/bindings/display/ilitek,ili9341.txt
+F: Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
DRM DRIVER FOR HX8357D PANELS
M: Eric Anholt <eric at anholt.net>
@@ -5137,13 +5139,6 @@ M: Dave Airlie <airlied at redhat.com>
S: Odd Fixes
F: drivers/gpu/drm/mgag200/
-DRM DRIVER FOR MI0283QT
-M: Noralf Trønnes <noralf at tronnes.org>
-T: git git://anongit.freedesktop.org/drm/drm-misc
-S: Maintained
-F: drivers/gpu/drm/tiny/mi0283qt.c
-F: Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
-
DRM DRIVER FOR MSM ADRENO GPU
M: Rob Clark <robdclark at gmail.com>
M: Sean Paul <sean at poorly.run>
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index a24953ec2d40..fbb5a723eeb5 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -65,6 +65,7 @@ config DRM_PANEL_ILITEK_ILI9341
help
DRM driver for the following Ilitek ILI9341 panels:
* YX240QV29-T 2.4" 240x320 TFT (Adafruit 2.4")
+ * Multi-Inno MI0283QT
If M is selected the module will be called panel-ilitek-ili9341.
diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
index f8df737018d3..f6082fa2a389 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c
@@ -3,8 +3,6 @@
* DRM driver for Ilitek ILI9341 panels
*
* Copyright 2018 David Lechner <david at lechnology.com>
- *
- * Based on mi0283qt.c:
* Copyright 2016 Noralf Trønnes
*/
@@ -13,7 +11,9 @@
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of_device.h>
+#include <linux/pm.h>
#include <linux/property.h>
+#include <linux/regulator/consumer.h>
#include <linux/spi/spi.h>
#include <video/mipi_display.h>
@@ -22,6 +22,7 @@
#include <drm/drm_drv.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_mipi_dbi.h>
+#include <drm/drm_modeset_helper.h>
#include <drm/drm_panel.h>
#define ILI9341_FRMCTR1 0xb1
@@ -57,6 +58,7 @@ struct ili9341_config {
struct ili9341 {
struct mipi_dbi_dev dbidev; /* This must be the first entry */
struct drm_panel panel;
+ struct regulator *regulator;
struct backlight_device *backlight;
const struct ili9341_config *conf;
};
@@ -174,12 +176,133 @@ static const struct ili9341_config yx240qv29_data = {
.mode = &yx240qv29_mode,
};
+static int mi0283qt_prepare(struct drm_panel *panel)
+{
+ struct ili9341 *ili = panel_to_ili9341(panel);
+ struct mipi_dbi_dev *dbidev = &ili->dbidev;
+ struct mipi_dbi *dbi = &dbidev->dbi;
+ u8 addr_mode;
+ int ret;
+
+ if (ili->regulator)
+ regulator_enable(ili->regulator);
+
+ ret = mipi_dbi_poweron_conditional_reset(dbidev);
+ if (ret < 0) {
+ if (ili->regulator)
+ regulator_disable(ili->regulator);
+ return ret;
+ }
+ if (ret == 1)
+ goto out_enable;
+
+ mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF);
+
+ mipi_dbi_command(dbi, ILI9341_PWCTRLB, 0x00, 0x83, 0x30);
+ mipi_dbi_command(dbi, ILI9341_PWRSEQ, 0x64, 0x03, 0x12, 0x81);
+ mipi_dbi_command(dbi, ILI9341_DTCTRLA, 0x85, 0x01, 0x79);
+ mipi_dbi_command(dbi, ILI9341_PWCTRLA, 0x39, 0x2c, 0x00, 0x34, 0x02);
+ mipi_dbi_command(dbi, ILI9341_PUMPCTRL, 0x20);
+ mipi_dbi_command(dbi, ILI9341_DTCTRLB, 0x00, 0x00);
+
+ /* Power Control */
+ mipi_dbi_command(dbi, ILI9341_PWCTRL1, 0x26);
+ mipi_dbi_command(dbi, ILI9341_PWCTRL2, 0x11);
+ /* VCOM */
+ mipi_dbi_command(dbi, ILI9341_VMCTRL1, 0x35, 0x3e);
+ mipi_dbi_command(dbi, ILI9341_VMCTRL2, 0xbe);
+
+ /* Memory Access Control */
+ mipi_dbi_command(dbi, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT);
+
+ /* Frame Rate */
+ mipi_dbi_command(dbi, ILI9341_FRMCTR1, 0x00, 0x1b);
+
+ /* Gamma */
+ mipi_dbi_command(dbi, ILI9341_EN3GAM, 0x08);
+ mipi_dbi_command(dbi, MIPI_DCS_SET_GAMMA_CURVE, 0x01);
+ mipi_dbi_command(dbi, ILI9341_PGAMCTRL,
+ 0x1f, 0x1a, 0x18, 0x0a, 0x0f, 0x06, 0x45, 0x87,
+ 0x32, 0x0a, 0x07, 0x02, 0x07, 0x05, 0x00);
+ mipi_dbi_command(dbi, ILI9341_NGAMCTRL,
+ 0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3a, 0x78,
+ 0x4d, 0x05, 0x18, 0x0d, 0x38, 0x3a, 0x1f);
+
+ /* DDRAM */
+ mipi_dbi_command(dbi, ILI9341_ETMOD, 0x07);
+
+ /* Display */
+ mipi_dbi_command(dbi, ILI9341_DISCTRL, 0x0a, 0x82, 0x27, 0x00);
+ mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE);
+ msleep(100);
+
+ mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);
+ msleep(100);
+
+out_enable:
+ /* The PiTFT (ili9340) has a hardware reset circuit that
+ * resets only on power-on and not on each reboot through
+ * a gpio like the rpi-display does.
+ * As a result, we need to always apply the rotation value
+ * regardless of the display "on/off" state.
+ */
+ switch (dbidev->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(dbi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode);
+
+ return 0;
+}
+
+static int mi0283qt_unprepare(struct drm_panel *panel)
+{
+ struct ili9341 *ili = panel_to_ili9341(panel);
+
+ if (ili->regulator)
+ regulator_disable(ili->regulator);
+
+ return 0;
+}
+
+static const struct drm_panel_funcs mi0283qt_drm_funcs = {
+ .prepare = mi0283qt_prepare,
+ .enable = ili9341_enable,
+ .disable = ili9341_disable,
+ .unprepare = mi0283qt_unprepare,
+};
+
+static const struct drm_display_mode mi0283qt_mode = {
+ DRM_SIMPLE_MODE(320, 240, 58, 43),
+};
+
+static const struct ili9341_config mi0283qt_data = {
+ .funcs = &mi0283qt_drm_funcs,
+ .mode = &mi0283qt_mode,
+};
+
+/* Legacy, DRM driver name is ABI */
+DEFINE_DRM_MIPI_DBI_PANEL_DRIVER(mi0283qt, "Multi-Inno MI0283QT", "20160614");
+
DEFINE_DRM_MIPI_DBI_PANEL_DRIVER(ili9341, "Ilitek ILI9341", "20180514");
static int ili9341_probe(struct spi_device *spi)
{
const struct spi_device_id *spi_id;
struct device *dev = &spi->dev;
+ struct drm_driver *driver;
struct mipi_dbi *dbi;
struct gpio_desc *dc;
struct ili9341 *ili;
@@ -216,6 +339,10 @@ static int ili9341_probe(struct spi_device *spi)
return PTR_ERR(dc);
}
+ ili->regulator = devm_regulator_get(dev, "power");
+ if (IS_ERR(ili->regulator))
+ return PTR_ERR(ili->regulator);
+
ili->backlight = devm_of_find_backlight(dev);
if (IS_ERR(ili->backlight))
return PTR_ERR(ili->backlight);
@@ -230,7 +357,12 @@ static int ili9341_probe(struct spi_device *spi)
ili->panel.dev = dev;
ili->panel.funcs = ili->conf->funcs;
- return drm_mipi_dbi_panel_register(&ili->panel, &ili->dbidev, &ili9341_drm_driver,
+ if (ili->conf == &mi0283qt_data)
+ driver = &mi0283qt_drm_driver;
+ else
+ driver = &ili9341_drm_driver;
+
+ return drm_mipi_dbi_panel_register(&ili->panel, &ili->dbidev, driver,
ili->conf->mode, rotation);
}
@@ -251,14 +383,36 @@ static void ili9341_shutdown(struct spi_device *spi)
drm_atomic_helper_shutdown(&ili->dbidev.drm);
}
+static int __maybe_unused ili9341_pm_suspend(struct device *dev)
+{
+ struct ili9341 *ili = dev_get_drvdata(dev);
+
+ return drm_mode_config_helper_suspend(&ili->dbidev.drm);
+}
+
+static int __maybe_unused ili9341_pm_resume(struct device *dev)
+{
+ struct ili9341 *ili = dev_get_drvdata(dev);
+
+ drm_mode_config_helper_resume(&ili->dbidev.drm);
+
+ return 0;
+}
+
+static const struct dev_pm_ops ili9341_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(ili9341_pm_suspend, ili9341_pm_resume)
+};
+
static const struct of_device_id ili9341_of_match[] = {
{ .compatible = "adafruit,yx240qv29", .data = &yx240qv29_data },
+ { .compatible = "multi-inno,mi0283qt", .data = &mi0283qt_data },
{ }
};
MODULE_DEVICE_TABLE(of, ili9341_of_match);
static const struct spi_device_id ili9341_id[] = {
{ "yx240qv29", (unsigned long)&yx240qv29_data },
+ { "mi0283qt", (unsigned long)&mi0283qt_data },
{ }
};
MODULE_DEVICE_TABLE(spi, ili9341_id);
@@ -267,6 +421,7 @@ static struct spi_driver ili9341_spi_driver = {
.driver = {
.name = "panel-ilitek-ili9341",
.of_match_table = ili9341_of_match,
+ .pm = &ili9341_pm_ops,
},
.id_table = ili9341_id,
.probe = ili9341_probe,
diff --git a/drivers/gpu/drm/tiny/Kconfig b/drivers/gpu/drm/tiny/Kconfig
index 3e63e93fbeac..4fae3e50147d 100644
--- a/drivers/gpu/drm/tiny/Kconfig
+++ b/drivers/gpu/drm/tiny/Kconfig
@@ -34,17 +34,6 @@ config TINYDRM_ILI9225
If M is selected the module will be called ili9225.
-config TINYDRM_MI0283QT
- tristate "DRM support for MI0283QT"
- depends on DRM && SPI
- select DRM_KMS_HELPER
- select DRM_KMS_CMA_HELPER
- select DRM_MIPI_DBI
- select BACKLIGHT_CLASS_DEVICE
- help
- DRM driver for the Multi-Inno MI0283QT display panel
- If M is selected the module will be called mi0283qt.
-
config TINYDRM_REPAPER
tristate "DRM support for Pervasive Displays RePaper panels (V231)"
depends on DRM && SPI
diff --git a/drivers/gpu/drm/tiny/Makefile b/drivers/gpu/drm/tiny/Makefile
index c140962f5c7e..05029c4b1916 100644
--- a/drivers/gpu/drm/tiny/Makefile
+++ b/drivers/gpu/drm/tiny/Makefile
@@ -3,7 +3,6 @@
obj-$(CONFIG_DRM_GM12U320) += gm12u320.o
obj-$(CONFIG_TINYDRM_HX8357D) += hx8357d.o
obj-$(CONFIG_TINYDRM_ILI9225) += ili9225.o
-obj-$(CONFIG_TINYDRM_MI0283QT) += mi0283qt.o
obj-$(CONFIG_TINYDRM_REPAPER) += repaper.o
obj-$(CONFIG_TINYDRM_ST7586) += st7586.o
obj-$(CONFIG_TINYDRM_ST7735R) += st7735r.o
diff --git a/drivers/gpu/drm/tiny/mi0283qt.c b/drivers/gpu/drm/tiny/mi0283qt.c
deleted file mode 100644
index e2cfd9a17143..000000000000
--- a/drivers/gpu/drm/tiny/mi0283qt.c
+++ /dev/null
@@ -1,294 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * DRM driver for Multi-Inno MI0283QT panels
- *
- * Copyright 2016 Noralf Trønnes
- */
-
-#include <linux/backlight.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 <drm/drm_atomic_helper.h>
-#include <drm/drm_drv.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
-#include <drm/drm_mipi_dbi.h>
-#include <drm/drm_modeset_helper.h>
-#include <video/mipi_display.h>
-
-#define ILI9341_FRMCTR1 0xb1
-#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_PGAMCTRL 0xe0
-#define ILI9341_NGAMCTRL 0xe1
-#define ILI9341_DTCTRLA 0xe8
-#define ILI9341_DTCTRLB 0xea
-#define ILI9341_PWRSEQ 0xed
-
-#define ILI9341_EN3GAM 0xf2
-#define ILI9341_PUMPCTRL 0xf7
-
-#define ILI9341_MADCTL_BGR BIT(3)
-#define ILI9341_MADCTL_MV BIT(5)
-#define ILI9341_MADCTL_MX BIT(6)
-#define ILI9341_MADCTL_MY BIT(7)
-
-static void mi0283qt_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;
-
- mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF);
-
- mipi_dbi_command(dbi, ILI9341_PWCTRLB, 0x00, 0x83, 0x30);
- mipi_dbi_command(dbi, ILI9341_PWRSEQ, 0x64, 0x03, 0x12, 0x81);
- mipi_dbi_command(dbi, ILI9341_DTCTRLA, 0x85, 0x01, 0x79);
- mipi_dbi_command(dbi, ILI9341_PWCTRLA, 0x39, 0x2c, 0x00, 0x34, 0x02);
- mipi_dbi_command(dbi, ILI9341_PUMPCTRL, 0x20);
- mipi_dbi_command(dbi, ILI9341_DTCTRLB, 0x00, 0x00);
-
- /* Power Control */
- mipi_dbi_command(dbi, ILI9341_PWCTRL1, 0x26);
- mipi_dbi_command(dbi, ILI9341_PWCTRL2, 0x11);
- /* VCOM */
- mipi_dbi_command(dbi, ILI9341_VMCTRL1, 0x35, 0x3e);
- mipi_dbi_command(dbi, ILI9341_VMCTRL2, 0xbe);
-
- /* Memory Access Control */
- mipi_dbi_command(dbi, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT);
-
- /* Frame Rate */
- mipi_dbi_command(dbi, ILI9341_FRMCTR1, 0x00, 0x1b);
-
- /* Gamma */
- mipi_dbi_command(dbi, ILI9341_EN3GAM, 0x08);
- mipi_dbi_command(dbi, MIPI_DCS_SET_GAMMA_CURVE, 0x01);
- mipi_dbi_command(dbi, ILI9341_PGAMCTRL,
- 0x1f, 0x1a, 0x18, 0x0a, 0x0f, 0x06, 0x45, 0x87,
- 0x32, 0x0a, 0x07, 0x02, 0x07, 0x05, 0x00);
- mipi_dbi_command(dbi, ILI9341_NGAMCTRL,
- 0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3a, 0x78,
- 0x4d, 0x05, 0x18, 0x0d, 0x38, 0x3a, 0x1f);
-
- /* DDRAM */
- mipi_dbi_command(dbi, ILI9341_ETMOD, 0x07);
-
- /* Display */
- mipi_dbi_command(dbi, ILI9341_DISCTRL, 0x0a, 0x82, 0x27, 0x00);
- mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE);
- msleep(100);
-
- mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);
- msleep(100);
-
-out_enable:
- /* The PiTFT (ili9340) has a hardware reset circuit that
- * resets only on power-on and not on each reboot through
- * a gpio like the rpi-display does.
- * As a result, we need to always apply the rotation value
- * regardless of the display "on/off" state.
- */
- switch (dbidev->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(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 mi0283qt_pipe_funcs = {
- .enable = mi0283qt_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 mi0283qt_mode = {
- DRM_SIMPLE_MODE(320, 240, 58, 43),
-};
-
-DEFINE_DRM_GEM_CMA_FOPS(mi0283qt_fops);
-
-static struct drm_driver mi0283qt_driver = {
- .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
- .fops = &mi0283qt_fops,
- .release = mipi_dbi_release,
- DRM_GEM_CMA_VMAP_DRIVER_OPS,
- .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 mipi_dbi_dev *dbidev;
- struct drm_device *drm;
- struct mipi_dbi *dbi;
- struct gpio_desc *dc;
- u32 rotation = 0;
- int ret;
-
- dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
- if (!dbidev)
- return -ENOMEM;
-
- dbi = &dbidev->dbi;
- drm = &dbidev->drm;
- ret = devm_drm_dev_init(dev, drm, &mi0283qt_driver);
- if (ret) {
- kfree(dbidev);
- return ret;
- }
-
- drm_mode_config_init(drm);
-
- dbi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
- if (IS_ERR(dbi->reset)) {
- DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n");
- return PTR_ERR(dbi->reset);
- }
-
- dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW);
- if (IS_ERR(dc)) {
- DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n");
- return PTR_ERR(dc);
- }
-
- dbidev->regulator = devm_regulator_get(dev, "power");
- if (IS_ERR(dbidev->regulator))
- return PTR_ERR(dbidev->regulator);
-
- 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, dbi, dc);
- if (ret)
- return ret;
-
- ret = mipi_dbi_dev_init(dbidev, &mi0283qt_pipe_funcs, &mi0283qt_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_fbdev_generic_setup(drm, 0);
-
- return 0;
-}
-
-static int mi0283qt_remove(struct spi_device *spi)
-{
- struct drm_device *drm = spi_get_drvdata(spi);
-
- drm_dev_unplug(drm);
- drm_atomic_helper_shutdown(drm);
-
- return 0;
-}
-
-static void mi0283qt_shutdown(struct spi_device *spi)
-{
- drm_atomic_helper_shutdown(spi_get_drvdata(spi));
-}
-
-static int __maybe_unused mi0283qt_pm_suspend(struct device *dev)
-{
- return drm_mode_config_helper_suspend(dev_get_drvdata(dev));
-}
-
-static int __maybe_unused mi0283qt_pm_resume(struct device *dev)
-{
- drm_mode_config_helper_resume(dev_get_drvdata(dev));
-
- return 0;
-}
-
-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,
- .remove = mi0283qt_remove,
- .shutdown = mi0283qt_shutdown,
-};
-module_spi_driver(mi0283qt_spi_driver);
-
-MODULE_DESCRIPTION("Multi-Inno MI0283QT DRM driver");
-MODULE_AUTHOR("Noralf Trønnes");
-MODULE_LICENSE("GPL");
--
2.20.1
More information about the dri-devel
mailing list