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Subject[PATCH 1/2] drm/msm: Garbage collect unused resource _len fields.
Date
Nothing was using the lengths of these ioremaps.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 21 ---------------------
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 1 -
drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c | 9 ---------
3 files changed, 31 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 680527e28d09..a4ab802fee6d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -45,20 +45,6 @@
static int dpu_kms_hw_init(struct msm_kms *kms);
static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms);

-static unsigned long dpu_iomap_size(struct platform_device *pdev,
- const char *name)
-{
- struct resource *res;
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
- if (!res) {
- DRM_ERROR("failed to get memory resource: %s\n", name);
- return 0;
- }
-
- return resource_size(res);
-}
-
#ifdef CONFIG_DEBUG_FS
static int _dpu_danger_signal_status(struct seq_file *s,
bool danger_status)
@@ -844,7 +830,6 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
goto error;
}
DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio);
- dpu_kms->mmio_len = dpu_iomap_size(dpu_kms->pdev, "mdp");

dpu_kms->vbif[VBIF_RT] = msm_ioremap(dpu_kms->pdev, "vbif", "vbif");
if (IS_ERR(dpu_kms->vbif[VBIF_RT])) {
@@ -853,22 +838,16 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
dpu_kms->vbif[VBIF_RT] = NULL;
goto error;
}
- dpu_kms->vbif_len[VBIF_RT] = dpu_iomap_size(dpu_kms->pdev, "vbif");
dpu_kms->vbif[VBIF_NRT] = msm_ioremap(dpu_kms->pdev, "vbif_nrt", "vbif_nrt");
if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) {
dpu_kms->vbif[VBIF_NRT] = NULL;
DPU_DEBUG("VBIF NRT is not defined");
- } else {
- dpu_kms->vbif_len[VBIF_NRT] = dpu_iomap_size(dpu_kms->pdev,
- "vbif_nrt");
}

dpu_kms->reg_dma = msm_ioremap(dpu_kms->pdev, "regdma", "regdma");
if (IS_ERR(dpu_kms->reg_dma)) {
dpu_kms->reg_dma = NULL;
DPU_DEBUG("REG_DMA is not defined");
- } else {
- dpu_kms->reg_dma_len = dpu_iomap_size(dpu_kms->pdev, "regdma");
}

pm_runtime_get_sync(&dpu_kms->pdev->dev);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index 4e32d040f1e6..13034cdb8665 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -100,7 +100,6 @@ struct dpu_kms {

/* io/register spaces: */
void __iomem *mmio, *vbif[VBIF_MAX], *reg_dma;
- unsigned long mmio_len, vbif_len[VBIF_MAX], reg_dma_len;

struct regulator *vdd;
struct regulator *mmagic;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
index 80d3cfc14007..9f20b84d5c0a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
@@ -37,7 +37,6 @@ struct dpu_mdss_hw_init_handler {
struct dpu_mdss {
struct msm_mdss base;
void __iomem *mmio;
- unsigned long mmio_len;
struct dss_module_power mp;
struct dpu_irq_controller irq_controller;
struct icc_path *path[2];
@@ -292,7 +291,6 @@ int dpu_mdss_init(struct drm_device *dev)
{
struct platform_device *pdev = to_platform_device(dev->dev);
struct msm_drm_private *priv = dev->dev_private;
- struct resource *res;
struct dpu_mdss *dpu_mdss;
struct dss_module_power *mp;
int ret = 0;
@@ -308,13 +306,6 @@ int dpu_mdss_init(struct drm_device *dev)

DRM_DEBUG("mapped mdss address space @%pK\n", dpu_mdss->mmio);

- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mdss");
- if (!res) {
- DRM_ERROR("failed to get memory resource for mdss\n");
- return -ENOMEM;
- }
- dpu_mdss->mmio_len = resource_size(res);
-
ret = dpu_mdss_parse_data_bus_icc_path(dev, dpu_mdss);
if (ret)
return ret;
--
2.26.2
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