6.17-stable review patch. If anyone has any objections, please let me know.
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From: Rob Herring (Arm) robh@kernel.org
[ Upstream commit fb53e8f09fc1e1a343fd08ea4f353f81613975d7 ]
Use the newly added of_reserved_mem_region_to_resource() function to handle "memory-region" properties.
The original code did not set 'zap_available' to false if of_address_to_resource() failed which seems like an oversight.
Signed-off-by: Rob Herring (Arm) robh@kernel.org Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@oss.qualcomm.com Patchwork: https://patchwork.freedesktop.org/patch/662275/ Link: https://lore.kernel.org/r/20250703183442.2073717-1-robh@kernel.org [DB: dropped part related to VRAM, no longer applicable] Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@oss.qualcomm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index f1230465bf0d0..8c6336b007dc0 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -10,7 +10,7 @@ #include <linux/interconnect.h> #include <linux/firmware/qcom/qcom_scm.h> #include <linux/kernel.h> -#include <linux/of_address.h> +#include <linux/of_reserved_mem.h> #include <linux/pm_opp.h> #include <linux/slab.h> #include <linux/soc/qcom/mdt_loader.h> @@ -33,7 +33,7 @@ static int zap_shader_load_mdt(struct msm_gpu *gpu, const char *fwname, struct device *dev = &gpu->pdev->dev; const struct firmware *fw; const char *signed_fwname = NULL; - struct device_node *np, *mem_np; + struct device_node *np; struct resource r; phys_addr_t mem_phys; ssize_t mem_size; @@ -51,18 +51,11 @@ static int zap_shader_load_mdt(struct msm_gpu *gpu, const char *fwname, return -ENODEV; }
- mem_np = of_parse_phandle(np, "memory-region", 0); - of_node_put(np); - if (!mem_np) { + ret = of_reserved_mem_region_to_resource(np, 0, &r); + if (ret) { zap_available = false; - return -EINVAL; - } - - ret = of_address_to_resource(mem_np, 0, &r); - of_node_put(mem_np); - if (ret) return ret; - + } mem_phys = r.start;
/*