drm/stm/drv.c

1 // SPDX-License-Identifier: GPL-2.0
13 #include <linux/dma-mapping.h>
32 #include "ltdc.h"
47 	unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);  in stm_gem_dma_dumb_create()
53 	args->pitch = roundup(min_pitch, 128);  in stm_gem_dma_dumb_create()
54 	args->height = roundup(args->height, 4);  in stm_gem_dma_dumb_create()
75 	struct platform_device *pdev = to_platform_device(ddev->dev);  in drv_load()
83 		return -ENOMEM;  in drv_load()
85 	ddev->dev_private = (void *)ldev;  in drv_load()
96 	ddev->mode_config.min_width = 0;  in drv_load()
97 	ddev->mode_config.min_height = 0;  in drv_load()
98 	ddev->mode_config.max_width = STM_MAX_FB_WIDTH;  in drv_load()
99 	ddev->mode_config.max_height = STM_MAX_FB_HEIGHT;  in drv_load()
100 	ddev->mode_config.funcs = &drv_mode_config_funcs;  in drv_load()
101 	ddev->mode_config.normalize_zpos = true;  in drv_load()
127 	struct ltdc_device *ldev = ddev->dev_private;  in drv_suspend()
130 	WARN_ON(ldev->suspend_state);  in drv_suspend()
136 	ldev->suspend_state = state;  in drv_suspend()
145 	struct ltdc_device *ldev = ddev->dev_private;  in drv_resume()
148 	if (WARN_ON(!ldev->suspend_state))  in drv_resume()
149 		return -ENOENT;  in drv_resume()
152 	ret = drm_atomic_helper_resume(ddev, ldev->suspend_state);  in drv_resume()
156 	ldev->suspend_state = NULL;  in drv_resume()
187 	struct device *dev = &pdev->dev;  in stm_drm_platform_probe()
240 	{ .compatible = "st,stm32-ltdc"},
250 		.name = "stm32-display",
262 MODULE_DESCRIPTION("STMicroelectronics ST DRM LTDC driver");