Check for EPROBE_DEFER instead of silently not using icc if the msm driver
probes before the interconnect driver.
Only check for EPROBE_DEFER because of_icc_get can return other errors that
we want to ignore (ENODATA).
Remove the WARN_ON in msm_gpu_cleanup because INIT_LIST_HEAD won't have
been called on the list yet when going through the defer error path.
Signed-off-by: Jonathan Marek <jonathan@xxxxxxxx>
---
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 17 ++++++++++++++---
drivers/gpu/drm/msm/msm_gpu.c | 2 --
2 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 89673c7ed473..393c00425d68 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -940,12 +940,20 @@ static int adreno_get_pwrlevels(struct device *dev,
*/
gpu->icc_path = of_icc_get(dev, NULL);
}
- if (IS_ERR(gpu->icc_path))
+ if (IS_ERR(gpu->icc_path)) {
+ ret = PTR_ERR(gpu->icc_path);
gpu->icc_path = NULL;
+ if (ret == -EPROBE_DEFER)
+ return ret;
+ }
gpu->ocmem_icc_path = of_icc_get(dev, "ocmem");
- if (IS_ERR(gpu->ocmem_icc_path))
+ if (IS_ERR(gpu->ocmem_icc_path)) {
+ ret = PTR_ERR(gpu->ocmem_icc_path);
gpu->ocmem_icc_path = NULL;
+ if (ret == -EPROBE_DEFER)
+ return ret;
+ }
return 0;
}
@@ -996,6 +1004,7 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
struct adreno_platform_config *config = pdev->dev.platform_data;
struct msm_gpu_config adreno_gpu_config = { 0 };
struct msm_gpu *gpu = &adreno_gpu->base;
+ int ret;
adreno_gpu->funcs = funcs;
adreno_gpu->info = adreno_info(config->rev);
@@ -1007,7 +1016,9 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
adreno_gpu_config.nr_rings = nr_rings;
- adreno_get_pwrlevels(&pdev->dev, gpu);
+ ret = adreno_get_pwrlevels(&pdev->dev, gpu);
+ if (ret)
+ return ret;
pm_runtime_set_autosuspend_delay(&pdev->dev,
adreno_gpu->info->inactive_period);
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index a22d30622306..ccf9a0dd9706 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -959,8 +959,6 @@ void msm_gpu_cleanup(struct msm_gpu *gpu)
DBG("%s", gpu->name);
- WARN_ON(!list_empty(&gpu->active_list));
-
for (i = 0; i < ARRAY_SIZE(gpu->rb); i++) {
msm_ringbuffer_destroy(gpu->rb[i]);
gpu->rb[i] = NULL;
--
2.26.1
