From 37f9fb928b7f32f4ee16cbd494aa15f146b20a65 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Thu, 21 Apr 2022 17:29:02 +0200 Subject: [PATCH] drm/vc4: drv: Skip BO Backend Initialization on BCM2711 On the BCM2711, we currently call the vc4_bo_cache_init() and vc4_gem_init() functions. These functions initialize the BO and GEM backends. However, this code was initially created to accomodate the requirements of the GPU on the older SoCs, while the BCM2711 has a separate driver for it. So let's just skip these calls when we're on a newer hardware. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_drv.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -325,19 +325,23 @@ static int vc4_drm_bind(struct device *d platform_set_drvdata(pdev, drm); INIT_LIST_HEAD(&vc4->debugfs_list); - mutex_init(&vc4->bin_bo_lock); + if (!is_vc5) { + mutex_init(&vc4->bin_bo_lock); - ret = vc4_bo_cache_init(drm); - if (ret) - return ret; + ret = vc4_bo_cache_init(drm); + if (ret) + return ret; + } ret = drmm_mode_config_init(drm); if (ret) return ret; - ret = vc4_gem_init(drm); - if (ret) - return ret; + if (!is_vc5) { + ret = vc4_gem_init(drm); + if (ret) + return ret; + } node = of_find_compatible_node(NULL, NULL, "raspberrypi,bcm2835-firmware"); if (node) {