drm/tiny/mi0283qt.c

1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * DRM driver for Multi-Inno MI0283QT panels
46 #define ILI9341_MADCTL_BGR	BIT(3)
47 #define ILI9341_MADCTL_MV	BIT(5)
48 #define ILI9341_MADCTL_MX	BIT(6)
49 #define ILI9341_MADCTL_MY	BIT(7)
55 	struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);  in mi0283qt_enable()
56 	struct mipi_dbi *dbi = &dbidev->dbi;  in mi0283qt_enable()
60 	if (!drm_dev_enter(pipe->crtc.dev, &idx))  in mi0283qt_enable()
116 	 * resets only on power-on and not on each reboot through  in mi0283qt_enable()
117 	 * a gpio like the rpi-display does.  in mi0283qt_enable()
121 	switch (dbidev->rotation) {  in mi0283qt_enable()
159 	.desc			= "Multi-Inno MI0283QT",
166 	{ .compatible = "multi-inno,mi0283qt" },
179 	struct device *dev = &spi->dev;  in mi0283qt_probe()
192 	dbi = &dbidev->dbi;  in mi0283qt_probe()
193 	drm = &dbidev->drm;  in mi0283qt_probe()
195 	dbi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);  in mi0283qt_probe()
196 	if (IS_ERR(dbi->reset))  in mi0283qt_probe()
197 		return dev_err_probe(dev, PTR_ERR(dbi->reset), "Failed to get GPIO 'reset'\n");  in mi0283qt_probe()
203 	dbidev->regulator = devm_regulator_get(dev, "power");  in mi0283qt_probe()
204 	if (IS_ERR(dbidev->regulator))  in mi0283qt_probe()
205 		return PTR_ERR(dbidev->regulator);  in mi0283qt_probe()
207 	dbidev->backlight = devm_of_find_backlight(dev);  in mi0283qt_probe()
208 	if (IS_ERR(dbidev->backlight))  in mi0283qt_probe()
209 		return PTR_ERR(dbidev->backlight);  in mi0283qt_probe()
276 MODULE_DESCRIPTION("Multi-Inno MI0283QT DRM driver");