From 5886c3d417c600d0ac042196b4d0cf49427aa881 Mon Sep 17 00:00:00 2001 From: Dom Cobley Date: Thu, 12 Oct 2023 15:52:38 +0100 Subject: [PATCH] Revert "bcm2708_fb: Hack out dma support" This reverts commit d60956f30586ced37e2152f2ba338f547e6c64f7. --- drivers/video/fbdev/bcm2708_fb.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/drivers/video/fbdev/bcm2708_fb.c +++ b/drivers/video/fbdev/bcm2708_fb.c @@ -657,8 +657,6 @@ static long vc_mem_copy(struct bcm2708_f long rc = 0; size_t offset; -return -EFAULT; - /* restrict this to root user */ if (!uid_eq(current_euid(), GLOBAL_ROOT_UID)) { rc = -EFAULT; @@ -1111,7 +1109,6 @@ static int bcm2708_fb_probe(struct platf dev_info(&dev->dev, "FB found %d display(s)\n", num_displays); -#if 0 /* Set up the DMA information. Note we have just one set of DMA * parameters to work with all the FB's so requires synchronising when * being used @@ -1144,7 +1141,7 @@ static int bcm2708_fb_probe(struct platf "Failed to request DMA irq\n"); goto free_dma_chan; } -#endif + rpi_firmware_property(fbdev->fw, RPI_FIRMWARE_GET_VC_MEMORY, &gpu_mem, sizeof(gpu_mem));