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Message-Id: <1603113558-23330-2-git-send-email-akhilpo@codeaurora.org>
Date: Mon, 19 Oct 2020 18:49:18 +0530
From: Akhil P Oommen <akhilpo@...eaurora.org>
To: freedreno@...ts.freedesktop.org
Cc: dri-devel@...edesktop.org, linux-arm-msm@...r.kernel.org,
linux-kernel@...r.kernel.org, jcrouse@...eaurora.org,
mka@...omium.org, robdclark@...il.com, dianders@...omium.org
Subject: [PATCH 2/2] drm/msm: Fix duplicate gpu node in icc summary
On targets with a6xx gpu, there is a duplicate gpu icc node listed in
the interconnect summary. On these targets, calling
dev_pm_opp_of_add_table() api initializes the icc nodes for gpu indirectly.
So we should avoid using of_icc_get() api in the common probe path. To fix
this, we can move of_icc_get() to target specific code where it is
required.
Signed-off-by: Akhil P Oommen <akhilpo@...eaurora.org>
---
drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 21 +++++++++++++++++++--
drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 20 ++++++++++++++++++--
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 29 +----------------------------
3 files changed, 38 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
index f29c77d..93da668 100644
--- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
@@ -519,6 +519,8 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev)
struct msm_gpu *gpu;
struct msm_drm_private *priv = dev->dev_private;
struct platform_device *pdev = priv->gpu_pdev;
+ struct icc_path *ocmem_icc_path;
+ struct icc_path *icc_path;
int ret;
if (!pdev) {
@@ -566,13 +568,28 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev)
goto fail;
}
+ icc_path = devm_of_icc_get(&pdev->dev, "gfx-mem");
+ ret = IS_ERR(icc_path);
+ if (ret)
+ goto fail;
+
+ ocmem_icc_path = devm_of_icc_get(&pdev->dev, "ocmem");
+ ret = IS_ERR(ocmem_icc_path);
+ if (ret) {
+ /* allow -ENODATA, ocmem icc is optional */
+ if (ret != -ENODATA)
+ goto fail;
+ ocmem_icc_path = NULL;
+ }
+
+
/*
* Set the ICC path to maximum speed for now by multiplying the fastest
* frequency by the bus width (8). We'll want to scale this later on to
* improve battery life.
*/
- icc_set_bw(gpu->icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
- icc_set_bw(gpu->ocmem_icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
+ icc_set_bw(icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
+ icc_set_bw(ocmem_icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
return gpu;
diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
index 2b93b33..c0be3a0 100644
--- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
@@ -648,6 +648,8 @@ struct msm_gpu *a4xx_gpu_init(struct drm_device *dev)
struct msm_gpu *gpu;
struct msm_drm_private *priv = dev->dev_private;
struct platform_device *pdev = priv->gpu_pdev;
+ struct icc_path *ocmem_icc_path;
+ struct icc_path *icc_path;
int ret;
if (!pdev) {
@@ -694,13 +696,27 @@ struct msm_gpu *a4xx_gpu_init(struct drm_device *dev)
goto fail;
}
+ icc_path = devm_of_icc_get(&pdev->dev, "gfx-mem");
+ ret = IS_ERR(icc_path);
+ if (ret)
+ goto fail;
+
+ ocmem_icc_path = devm_of_icc_get(&pdev->dev, "ocmem");
+ ret = IS_ERR(ocmem_icc_path);
+ if (ret) {
+ /* allow -ENODATA, ocmem icc is optional */
+ if (ret != -ENODATA)
+ goto fail;
+ ocmem_icc_path = NULL;
+ }
+
/*
* Set the ICC path to maximum speed for now by multiplying the fastest
* frequency by the bus width (8). We'll want to scale this later on to
* improve battery life.
*/
- icc_set_bw(gpu->icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
- icc_set_bw(gpu->ocmem_icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
+ icc_set_bw(icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
+ icc_set_bw(ocmem_icc_path, 0, Bps_to_icc(gpu->fast_rate) * 8);
return gpu;
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index fd8f491..6e3b820 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -920,35 +920,8 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
ret = msm_gpu_init(drm, pdev, &adreno_gpu->base, &funcs->base,
adreno_gpu->info->name, &adreno_gpu_config);
- if (ret)
- return ret;
-
- /*
- * The legacy case, before "interconnect-names", only has a
- * single interconnect path which is equivalent to "gfx-mem"
- */
- if (!of_find_property(dev->of_node, "interconnect-names", NULL)) {
- gpu->icc_path = of_icc_get(dev, NULL);
- } else {
- gpu->icc_path = of_icc_get(dev, "gfx-mem");
- gpu->ocmem_icc_path = of_icc_get(dev, "ocmem");
- }
- if (IS_ERR(gpu->icc_path)) {
- ret = PTR_ERR(gpu->icc_path);
- gpu->icc_path = NULL;
- return ret;
- }
-
- if (IS_ERR(gpu->ocmem_icc_path)) {
- ret = PTR_ERR(gpu->ocmem_icc_path);
- gpu->ocmem_icc_path = NULL;
- /* allow -ENODATA, ocmem icc is optional */
- if (ret != -ENODATA)
- return ret;
- }
-
- return 0;
+ return ret;
}
void adreno_gpu_cleanup(struct adreno_gpu *adreno_gpu)
--
2.7.4
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