diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c
index 9d5a8d217bc6..e45c69044935 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c
@@ -319,10 +319,8 @@ static int dpu_debugfs_core_irq_show(struct seq_file *s, void *v)
unsigned long irq_flags;
int i, irq_count, enable_count, cb_count;
- if (!irq_obj || !irq_obj->enable_counts || !irq_obj->irq_cb_tbl) {
- DPU_ERROR("invalid parameters\n");
+ if (WARN_ON(!irq_obj->enable_counts || !irq_obj->irq_cb_tbl))
return 0;
- }
for (i = 0; i < irq_obj->total_irqs; i++) {
spin_lock_irqsave(&irq_obj->cb_lock, irq_flags);
@@ -343,31 +341,11 @@ static int dpu_debugfs_core_irq_show(struct seq_file *s, void *v)
DEFINE_DPU_DEBUGFS_SEQ_FOPS(dpu_debugfs_core_irq);
-int dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms,
+void dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms,
struct dentry *parent)
{
- dpu_kms->irq_obj.debugfs_file = debugfs_create_file("core_irq", 0600,
- parent, &dpu_kms->irq_obj,
- &dpu_debugfs_core_irq_fops);
-
- return 0;
-}
-
-void dpu_debugfs_core_irq_destroy(struct dpu_kms *dpu_kms)
-{
- debugfs_remove(dpu_kms->irq_obj.debugfs_file);
- dpu_kms->irq_obj.debugfs_file = NULL;
-}
-
-#else
-int dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms,
- struct dentry *parent)
-{
- return 0;
-}
-
-void dpu_debugfs_core_irq_destroy(struct dpu_kms *dpu_kms)
-{
+ debugfs_create_file("core_irq", 0600, parent, &dpu_kms->irq_obj,
+ &dpu_debugfs_core_irq_fops);
}
#endif
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h
index 884f77fa3eb6..e9015a2b23fe 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h
@@ -132,15 +132,8 @@ int dpu_core_irq_unregister_callback(
* dpu_debugfs_core_irq_init - register core irq debugfs
* @dpu_kms: pointer to kms
* @parent: debugfs directory root
- * @Return: 0 on success
*/
-int dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms,
+void dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms,
struct dentry *parent);
-/**
- * dpu_debugfs_core_irq_destroy - deregister core irq debugfs
- * @dpu_kms: pointer to kms
- */
-void dpu_debugfs_core_irq_destroy(struct dpu_kms *dpu_kms);
-
#endif /* __DPU_CORE_IRQ_H__ */
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
index e8a87f4b8e0e..9f20f397f77d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
@@ -24,8 +24,6 @@
#include "dpu_crtc.h"
#include "dpu_core_perf.h"
-#define DPU_PERF_MODE_STRING_SIZE 128
-
/**
* enum dpu_perf_mode - performance tuning mode
* @DPU_PERF_MODE_NORMAL: performance controlled by user mode client
@@ -451,24 +449,14 @@ static ssize_t _dpu_core_perf_mode_write(struct file *file,
struct dpu_core_perf *perf = file->private_data;
struct dpu_perf_cfg *cfg = &perf->catalog->perf;
u32 perf_mode = 0;
- char buf[10];
+ int ret;
- if (!perf)
- return -ENODEV;
-
- if (count >= sizeof(buf))
- return -EFAULT;
-
- if (copy_from_user(buf, user_buf, count))
- return -EFAULT;
-
- buf[count] = 0; /* end of string */
-
- if (kstrtouint(buf, 0, &perf_mode))
- return -EFAULT;
+ ret = kstrtouint_from_user(user_buf, count, 0, &perf_mode);
+ if (ret)
+ return ret;
if (perf_mode >= DPU_PERF_MODE_MAX)
- return -EFAULT;
+ return -EINVAL;
if (perf_mode == DPU_PERF_MODE_FIXED) {
DRM_INFO("fix performance mode\n");
@@ -493,29 +481,16 @@ static ssize_t _dpu_core_perf_mode_read(struct file *file,
char __user *buff, size_t count, loff_t *ppos)
{
struct dpu_core_perf *perf = file->private_data;
- int len = 0;
- char buf[DPU_PERF_MODE_STRING_SIZE] = {'\0'};
+ int len;
+ char buf[128];
- if (!perf)
- return -ENODEV;
-
- if (*ppos)
- return 0; /* the end */
-
- len = snprintf(buf, sizeof(buf),
+ len = scnprintf(buf, sizeof(buf),
"mode %d min_mdp_clk %llu min_bus_vote %llu\n",
perf->perf_tune.mode,
perf->perf_tune.min_core_clk,
perf->perf_tune.min_bus_vote);
- if (len < 0 || len >= sizeof(buf))
- return 0;
- if ((count < sizeof(buf)) || copy_to_user(buff, buf, len))
- return -EFAULT;
-
- *ppos += len; /* increase offset */
-
- return len;
+ return simple_read_from_buffer(buff, count, ppos, buf, len);
}
static const struct file_operations dpu_core_perf_mode_fops = {
@@ -524,70 +499,43 @@ static const struct file_operations dpu_core_perf_mode_fops = {
.write = _dpu_core_perf_mode_write,
};
-static void dpu_core_perf_debugfs_destroy(struct dpu_core_perf *perf)
-{
- debugfs_remove_recursive(perf->debugfs_root);
- perf->debugfs_root = NULL;
-}
-
-int dpu_core_perf_debugfs_init(struct dpu_core_perf *perf,
- struct dentry *parent)
+int dpu_core_perf_debugfs_init(struct dpu_kms *dpu_kms, struct dentry *parent)
{
+ struct dpu_core_perf *perf = &dpu_kms->perf;
struct dpu_mdss_cfg *catalog = perf->catalog;
- struct msm_drm_private *priv;
- struct dpu_kms *dpu_kms;
+ struct dentry *entry;
- priv = perf->dev->dev_private;
- if (!priv || !priv->kms) {
- DPU_ERROR("invalid KMS reference\n");
+ entry = debugfs_create_dir("core_perf", parent);
+ if (IS_ERR_OR_NULL(entry))
return -EINVAL;
- }
- dpu_kms = to_dpu_kms(priv->kms);
-
- perf->debugfs_root = debugfs_create_dir("core_perf", parent);
- if (!perf->debugfs_root) {
- DPU_ERROR("failed to create core perf debugfs\n");
- return -EINVAL;
- }
-
- debugfs_create_u64("max_core_clk_rate", 0600, perf->debugfs_root,
+ debugfs_create_u64("max_core_clk_rate", 0600, entry,
&perf->max_core_clk_rate);
- debugfs_create_u64("core_clk_rate", 0600, perf->debugfs_root,
+ debugfs_create_u64("core_clk_rate", 0600, entry,
&perf->core_clk_rate);
- debugfs_create_u32("enable_bw_release", 0600, perf->debugfs_root,
+ debugfs_create_u32("enable_bw_release", 0600, entry,
(u32 *)&perf->enable_bw_release);
- debugfs_create_u32("threshold_low", 0600, perf->debugfs_root,
+ debugfs_create_u32("threshold_low", 0600, entry,
(u32 *)&catalog->perf.max_bw_low);
- debugfs_create_u32("threshold_high", 0600, perf->debugfs_root,
+ debugfs_create_u32("threshold_high", 0600, entry,
(u32 *)&catalog->perf.max_bw_high);
- debugfs_create_u32("min_core_ib", 0600, perf->debugfs_root,
+ debugfs_create_u32("min_core_ib", 0600, entry,
(u32 *)&catalog->perf.min_core_ib);
- debugfs_create_u32("min_llcc_ib", 0600, perf->debugfs_root,
+ debugfs_create_u32("min_llcc_ib", 0600, entry,
(u32 *)&catalog->perf.min_llcc_ib);
- debugfs_create_u32("min_dram_ib", 0600, perf->debugfs_root,
+ debugfs_create_u32("min_dram_ib", 0600, entry,
(u32 *)&catalog->perf.min_dram_ib);
- debugfs_create_file("perf_mode", 0600, perf->debugfs_root,
+ debugfs_create_file("perf_mode", 0600, entry,
(u32 *)perf, &dpu_core_perf_mode_fops);
- debugfs_create_u64("fix_core_clk_rate", 0600, perf->debugfs_root,
+ debugfs_create_u64("fix_core_clk_rate", 0600, entry,
&perf->fix_core_clk_rate);
- debugfs_create_u64("fix_core_ib_vote", 0600, perf->debugfs_root,
+ debugfs_create_u64("fix_core_ib_vote", 0600, entry,
&perf->fix_core_ib_vote);
- debugfs_create_u64("fix_core_ab_vote", 0600, perf->debugfs_root,
+ debugfs_create_u64("fix_core_ab_vote", 0600, entry,
&perf->fix_core_ab_vote);
return 0;
}
-#else
-static void dpu_core_perf_debugfs_destroy(struct dpu_core_perf *perf)
-{
-}
-
-int dpu_core_perf_debugfs_init(struct dpu_core_perf *perf,
- struct dentry *parent)
-{
- return 0;
-}
#endif
void dpu_core_perf_destroy(struct dpu_core_perf *perf)
@@ -597,7 +545,6 @@ void dpu_core_perf_destroy(struct dpu_core_perf *perf)
return;
}
- dpu_core_perf_debugfs_destroy(perf);
perf->max_core_clk_rate = 0;
perf->core_clk = NULL;
perf->catalog = NULL;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
index c708451a94a1..37f518815eb7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
@@ -130,12 +130,13 @@ int dpu_core_perf_init(struct dpu_core_perf *perf,
struct dpu_mdss_cfg *catalog,
struct dss_clk *core_clk);
+struct dpu_kms;
+
/**
* dpu_core_perf_debugfs_init - initialize debugfs for core performance context
- * @perf: Pointer to core performance context
+ * @dpu_kms: Pointer to the dpu_kms struct
* @debugfs_parent: Pointer to parent debugfs
*/
-int dpu_core_perf_debugfs_init(struct dpu_core_perf *perf,
- struct dentry *parent);
+int dpu_core_perf_debugfs_init(struct dpu_kms *dpu_kms, struct dentry *parent);
#endif /* _DPU_CORE_PERF_H_ */
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index ffdb90c70c34..3090854a8575 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -1186,9 +1186,6 @@ static int _dpu_debugfs_status_show(struct seq_file *s, void *data)
int i, out_width;
- if (!s || !s->private)
- return -EINVAL;
-
dpu_crtc = s->private;
crtc = &dpu_crtc->base;
@@ -1328,8 +1325,7 @@ DEFINE_DPU_DEBUGFS_SEQ_FOPS(dpu_crtc_debugfs_state);
static int _dpu_crtc_init_debugfs(struct drm_crtc *crtc)
{
- struct dpu_crtc *dpu_crtc;
- struct dpu_kms *dpu_kms;
+ struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
static const struct file_operations debugfs_status_fops = {
.open = _dpu_debugfs_status_open,
@@ -1338,12 +1334,6 @@ static int _dpu_crtc_init_debugfs(struct drm_crtc *crtc)
.release = single_release,
};
- if (!crtc)
- return -EINVAL;
- dpu_crtc = to_dpu_crtc(crtc);
-
- dpu_kms = _dpu_crtc_get_kms(crtc);
-
dpu_crtc->debugfs_root = debugfs_create_dir(dpu_crtc->name,
crtc->dev->primary->debugfs_root);
if (!dpu_crtc->debugfs_root)
@@ -1360,25 +1350,11 @@ static int _dpu_crtc_init_debugfs(struct drm_crtc *crtc)
return 0;
}
-
-static void _dpu_crtc_destroy_debugfs(struct drm_crtc *crtc)
-{
- struct dpu_crtc *dpu_crtc;
-
- if (!crtc)
- return;
- dpu_crtc = to_dpu_crtc(crtc);
- debugfs_remove_recursive(dpu_crtc->debugfs_root);
-}
#else
static int _dpu_crtc_init_debugfs(struct drm_crtc *crtc)
{
return 0;
}
-
-static void _dpu_crtc_destroy_debugfs(struct drm_crtc *crtc)
-{
-}
#endif /* CONFIG_DEBUG_FS */
static int dpu_crtc_late_register(struct drm_crtc *crtc)
@@ -1388,7 +1364,9 @@ static int dpu_crtc_late_register(struct drm_crtc *crtc)
static void dpu_crtc_early_unregister(struct drm_crtc *crtc)
{
- _dpu_crtc_destroy_debugfs(crtc);
+ struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
+
+ debugfs_remove_recursive(dpu_crtc->debugfs_root);
}
static const struct drm_crtc_funcs dpu_crtc_funcs = {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index c1baab4c72d2..0dda4a603685 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -1863,14 +1863,9 @@ void dpu_encoder_prepare_commit(struct drm_encoder *drm_enc)
#ifdef CONFIG_DEBUG_FS
static int _dpu_encoder_status_show(struct seq_file *s, void *data)
{
- struct dpu_encoder_virt *dpu_enc;
+ struct dpu_encoder_virt *dpu_enc = s->private;
int i;
- if (!s || !s->private)
- return -EINVAL;
-
- dpu_enc = s->private;
-
mutex_lock(&dpu_enc->enc_lock);
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
@@ -1908,7 +1903,7 @@ static int _dpu_encoder_debugfs_status_open(struct inode *inode,
static int _dpu_encoder_init_debugfs(struct drm_encoder *drm_enc)
{
- struct dpu_encoder_virt *dpu_enc;
+ struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc);
struct msm_drm_private *priv;
struct dpu_kms *dpu_kms;
int i;
@@ -1922,12 +1917,11 @@ static int _dpu_encoder_init_debugfs(struct drm_encoder *drm_enc)
char name[DPU_NAME_SIZE];
- if (!drm_enc || !drm_enc->dev || !drm_enc->dev->dev_private) {
+ if (!drm_enc->dev || !drm_enc->dev->dev_private) {
DPU_ERROR("invalid encoder or kms\n");
return -EINVAL;
}
- dpu_enc = to_dpu_encoder_virt(drm_enc);
priv = drm_enc->dev->dev_private;
dpu_kms = to_dpu_kms(priv->kms);
@@ -1952,26 +1946,11 @@ static int _dpu_encoder_init_debugfs(struct drm_encoder *drm_enc)
return 0;
}
-
-static void _dpu_encoder_destroy_debugfs(struct drm_encoder *drm_enc)
-{
- struct dpu_encoder_virt *dpu_enc;
-
- if (!drm_enc)
- return;
-
- dpu_enc = to_dpu_encoder_virt(drm_enc);
- debugfs_remove_recursive(dpu_enc->debugfs_root);
-}
#else
static int _dpu_encoder_init_debugfs(struct drm_encoder *drm_enc)
{
return 0;
}
-
-static void _dpu_encoder_destroy_debugfs(struct drm_encoder *drm_enc)
-{
-}
#endif
static int dpu_encoder_late_register(struct drm_encoder *encoder)
@@ -1981,7 +1960,9 @@ static int dpu_encoder_late_register(struct drm_encoder *encoder)
static void dpu_encoder_early_unregister(struct drm_encoder *encoder)
{
- _dpu_encoder_destroy_debugfs(encoder);
+ struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(encoder);
+
+ debugfs_remove_recursive(dpu_enc->debugfs_root);
}
static int dpu_encoder_virt_add_phys_encs(
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 37dfee1ebba9..51a4a5f7c7f9 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -81,7 +81,7 @@ static int _dpu_danger_signal_status(struct seq_file *s,
struct dpu_danger_safe_status status;
int i;
- if (!kms || !kms->dev || !kms->dev->dev_private || !kms->hw_mdp) {
+ if (!kms->dev || !kms->dev->dev_private || !kms->hw_mdp) {
DPU_ERROR("invalid arg(s)\n");
return 0;
}
@@ -138,46 +138,29 @@ static int dpu_debugfs_safe_stats_show(struct seq_file *s, void *v)
}
DEFINE_DPU_DEBUGFS_SEQ_FOPS(dpu_debugfs_safe_stats);
-static void dpu_debugfs_danger_destroy(struct dpu_kms *dpu_kms)
-{
- debugfs_remove_recursive(dpu_kms->debugfs_danger);
- dpu_kms->debugfs_danger = NULL;
-}
-
-static int dpu_debugfs_danger_init(struct dpu_kms *dpu_kms,
+static void dpu_debugfs_danger_init(struct dpu_kms *dpu_kms,
struct dentry *parent)
{
- dpu_kms->debugfs_danger = debugfs_create_dir("danger",
- parent);
- if (!dpu_kms->debugfs_danger) {
- DPU_ERROR("failed to create danger debugfs\n");
- return -EINVAL;
- }
+ struct dentry *entry = debugfs_create_dir("danger", parent);
+ if (IS_ERR_OR_NULL(entry))
+ return;
- debugfs_create_file("danger_status", 0600, dpu_kms->debugfs_danger,
+ debugfs_create_file("danger_status", 0600, entry,
dpu_kms, &dpu_debugfs_danger_stats_fops);
- debugfs_create_file("safe_status", 0600, dpu_kms->debugfs_danger,
+ debugfs_create_file("safe_status", 0600, entry,
dpu_kms, &dpu_debugfs_safe_stats_fops);
-
- return 0;
}
static int _dpu_debugfs_show_regset32(struct seq_file *s, void *data)
{
- struct dpu_debugfs_regset32 *regset;
- struct dpu_kms *dpu_kms;
+ struct dpu_debugfs_regset32 *regset = s->private;
+ struct dpu_kms *dpu_kms = regset->dpu_kms;
struct drm_device *dev;
struct msm_drm_private *priv;
void __iomem *base;
uint32_t i, addr;
- if (!s || !s->private)
- return 0;
-
- regset = s->private;
-
- dpu_kms = regset->dpu_kms;
- if (!dpu_kms || !dpu_kms->mmio)
+ if (!dpu_kms->mmio)
return 0;
dev = dpu_kms->dev;
@@ -250,51 +233,24 @@ void *dpu_debugfs_create_regset32(const char *name, umode_t mode,
static int _dpu_debugfs_init(struct dpu_kms *dpu_kms)
{
- void *p;
- int rc;
+ void *p = dpu_hw_util_get_log_mask_ptr();
+ struct dentry *entry;
- p = dpu_hw_util_get_log_mask_ptr();
-
- if (!dpu_kms || !p)
+ if (!p)
return -EINVAL;
- dpu_kms->debugfs_root = debugfs_create_dir("debug",
- dpu_kms->dev->primary->debugfs_root);
- if (IS_ERR_OR_NULL(dpu_kms->debugfs_root)) {
- DRM_ERROR("debugfs create_dir failed %ld\n",
- PTR_ERR(dpu_kms->debugfs_root));
- return PTR_ERR(dpu_kms->debugfs_root);
- }
+ entry = debugfs_create_dir("debug", dpu_kms->dev->primary->debugfs_root);
+ if (IS_ERR_OR_NULL(entry))
+ return -ENODEV;
/* allow root to be NULL */
- debugfs_create_x32(DPU_DEBUGFS_HWMASKNAME, 0600, dpu_kms->debugfs_root, p);
+ debugfs_create_x32(DPU_DEBUGFS_HWMASKNAME, 0600, entry, p);
- (void) dpu_debugfs_danger_init(dpu_kms, dpu_kms->debugfs_root);
- (void) dpu_debugfs_vbif_init(dpu_kms, dpu_kms->debugfs_root);
- (void) dpu_debugfs_core_irq_init(dpu_kms, dpu_kms->debugfs_root);
+ dpu_debugfs_danger_init(dpu_kms, entry);
+ dpu_debugfs_vbif_init(dpu_kms, entry);
+ dpu_debugfs_core_irq_init(dpu_kms, entry);
- rc = dpu_core_perf_debugfs_init(&dpu_kms->perf, dpu_kms->debugfs_root);
- if (rc) {
- DPU_ERROR("failed to init perf %d\n", rc);
- return rc;
- }
-
- return 0;
-}
-
-static void _dpu_debugfs_destroy(struct dpu_kms *dpu_kms)
-{
- /* don't need to NULL check debugfs_root */
- if (dpu_kms) {
- dpu_debugfs_vbif_destroy(dpu_kms);
- dpu_debugfs_danger_destroy(dpu_kms);
- dpu_debugfs_core_irq_destroy(dpu_kms);
- debugfs_remove_recursive(dpu_kms->debugfs_root);
- }
-}
-#else
-static void _dpu_debugfs_destroy(struct dpu_kms *dpu_kms)
-{
+ return dpu_core_perf_debugfs_init(dpu_kms, entry);
}
#endif
@@ -620,22 +576,7 @@ fail:
#ifdef CONFIG_DEBUG_FS
static int dpu_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor)
{
- struct dpu_kms *dpu_kms = to_dpu_kms(kms);
- struct drm_device *dev;
- int rc;
-
- if (!dpu_kms || !dpu_kms->dev || !dpu_kms->dev->dev) {
- DPU_ERROR("invalid dpu_kms\n");
- return -EINVAL;
- }
-
- dev = dpu_kms->dev;
-
- rc = _dpu_debugfs_init(dpu_kms);
- if (rc)
- DPU_ERROR("dpu_debugfs init failed: %d\n", rc);
-
- return rc;
+ return _dpu_debugfs_init(to_dpu_kms(kms));
}
#endif
@@ -659,7 +600,6 @@ static void _dpu_kms_hw_destroy(struct dpu_kms *dpu_kms)
dpu_kms->hw_intr = NULL;
/* safe to call these more than once during shutdown */
- _dpu_debugfs_destroy(dpu_kms);
_dpu_kms_mmu_destroy(dpu_kms);
if (dpu_kms->catalog) {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index c15d239e9832..ac75cfc267f4 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -102,7 +102,6 @@ struct dpu_irq {
atomic_t *enable_counts;
atomic_t *irq_counts;
spinlock_t cb_lock;
- struct dentry *debugfs_file;
};
struct dpu_kms {
@@ -111,11 +110,6 @@ struct dpu_kms {
int core_rev;
struct dpu_mdss_cfg *catalog;
- /* directory entry for debugfs */
- struct dentry *debugfs_root;
- struct dentry *debugfs_danger;
- struct dentry *debugfs_vbif;
-
/* io/register spaces: */
void __iomem *mmio, *vbif[VBIF_MAX], *reg_dma;
unsigned long mmio_len, vbif_len[VBIF_MAX], reg_dma_len;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
index b7963f6bb865..413e1ee43cf2 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
@@ -120,13 +120,12 @@ static int _dpu_mdss_irq_domain_add(struct dpu_mdss *dpu_mdss)
return 0;
}
-static int _dpu_mdss_irq_domain_fini(struct dpu_mdss *dpu_mdss)
+static void _dpu_mdss_irq_domain_fini(struct dpu_mdss *dpu_mdss)
{
if (dpu_mdss->irq_controller.domain) {
irq_domain_remove(dpu_mdss->irq_controller.domain);
dpu_mdss->irq_controller.domain = NULL;
}
- return 0;
}
static int dpu_mdss_enable(struct msm_mdss *mdss)
{
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index f7d9bab80dad..278d0edb41a9 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -1262,26 +1262,12 @@ static ssize_t _dpu_plane_danger_read(struct file *file,
char __user *buff, size_t count, loff_t *ppos)
{
struct dpu_kms *kms = file->private_data;
- struct dpu_mdss_cfg *cfg = kms->catalog;
- int len = 0;
- char buf[40] = {'\0'};
+ int len;
+ char buf[40];
- if (!cfg)
- return -ENODEV;
+ len = scnprintf(buf, sizeof(buf), "%d\n", !kms->has_danger_ctrl);
- if (*ppos)
- return 0; /* the end */
-
- len = snprintf(buf, sizeof(buf), "%d\n", !kms->has_danger_ctrl);
- if (len < 0 || len >= sizeof(buf))
- return 0;
-
- if ((count < sizeof(buf)) || copy_to_user(buff, buf, len))
- return -EFAULT;
-
- *ppos += len; /* increase offset */
-
- return len;
+ return simple_read_from_buffer(buff, count, ppos, buf, len);
}
static void _dpu_plane_set_danger_state(struct dpu_kms *kms, bool enable)
@@ -1311,23 +1297,12 @@ static ssize_t _dpu_plane_danger_write(struct file *file,
const char __user *user_buf, size_t count, loff_t *ppos)
{
struct dpu_kms *kms = file->private_data;
- struct dpu_mdss_cfg *cfg = kms->catalog;
int disable_panic;
- char buf[10];
+ int ret;
- if (!cfg)
- return -EFAULT;
-
- if (count >= sizeof(buf))
- return -EFAULT;
-
- if (copy_from_user(buf, user_buf, count))
- return -EFAULT;
-
- buf[count] = 0; /* end of string */
-
- if (kstrtoint(buf, 0, &disable_panic))
- return -EFAULT;
+ ret = kstrtouint_from_user(user_buf, count, 0, &disable_panic);
+ if (ret)
+ return ret;
if (disable_panic) {
/* Disable panic signal for all active pipes */
@@ -1352,33 +1327,10 @@ static const struct file_operations dpu_plane_danger_enable = {
static int _dpu_plane_init_debugfs(struct drm_plane *plane)
{
- struct dpu_plane *pdpu;
- struct dpu_kms *kms;
- struct msm_drm_private *priv;
- const struct dpu_sspp_sub_blks *sblk = 0;
- const struct dpu_sspp_cfg *cfg = 0;
-
- if (!plane || !plane->dev) {
- DPU_ERROR("invalid arguments\n");
- return -EINVAL;
- }
-
- priv = plane->dev->dev_private;
- if (!priv || !priv->kms) {
- DPU_ERROR("invalid KMS reference\n");
- return -EINVAL;
- }
-
- kms = to_dpu_kms(priv->kms);
- pdpu = to_dpu_plane(plane);
-
- if (pdpu && pdpu->pipe_hw)
- cfg = pdpu->pipe_hw->cap;
- if (cfg)
- sblk = cfg->sblk;
-
- if (!sblk)
- return 0;
+ struct dpu_plane *pdpu = to_dpu_plane(plane);
+ struct dpu_kms *kms = _dpu_plane_get_kms(plane);
+ const struct dpu_sspp_cfg *cfg = pdpu->pipe_hw->cap;
+ const struct dpu_sspp_sub_blks *sblk = cfg->sblk;
/* create overall sub-directory for the pipe */
pdpu->debugfs_root =
@@ -1449,25 +1401,11 @@ static int _dpu_plane_init_debugfs(struct drm_plane *plane)
return 0;
}
-
-static void _dpu_plane_destroy_debugfs(struct drm_plane *plane)
-{
- struct dpu_plane *pdpu;
-
- if (!plane)
- return;
- pdpu = to_dpu_plane(plane);
-
- debugfs_remove_recursive(pdpu->debugfs_root);
-}
#else
static int _dpu_plane_init_debugfs(struct drm_plane *plane)
{
return 0;
}
-static void _dpu_plane_destroy_debugfs(struct drm_plane *plane)
-{
-}
#endif
static int dpu_plane_late_register(struct drm_plane *plane)
@@ -1477,7 +1415,9 @@ static int dpu_plane_late_register(struct drm_plane *plane)
static void dpu_plane_early_unregister(struct drm_plane *plane)
{
- _dpu_plane_destroy_debugfs(plane);
+ struct dpu_plane *pdpu = to_dpu_plane(plane);
+
+ debugfs_remove_recursive(pdpu->debugfs_root);
}
static const struct drm_plane_funcs dpu_plane_funcs = {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c
index ff5091d2555d..ef753ea9c499 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c
@@ -310,31 +310,25 @@ void dpu_vbif_init_memtypes(struct dpu_kms *dpu_kms)
}
#ifdef CONFIG_DEBUG_FS
-void dpu_debugfs_vbif_destroy(struct dpu_kms *dpu_kms)
-{
- debugfs_remove_recursive(dpu_kms->debugfs_vbif);
- dpu_kms->debugfs_vbif = NULL;
-}
-int dpu_debugfs_vbif_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root)
+void dpu_debugfs_vbif_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root)
{
char vbif_name[32];
- struct dentry *debugfs_vbif;
+ struct dentry *entry, *debugfs_vbif;
int i, j;
- dpu_kms->debugfs_vbif = debugfs_create_dir("vbif", debugfs_root);
- if (!dpu_kms->debugfs_vbif) {
- DPU_ERROR("failed to create vbif debugfs\n");
- return -EINVAL;
- }
+ entry = debugfs_create_dir("vbif", debugfs_root);
+ if (IS_ERR_OR_NULL(entry))
+ return;
for (i = 0; i < dpu_kms->catalog->vbif_count; i++) {
struct dpu_vbif_cfg *vbif = &dpu_kms->catalog->vbif[i];
snprintf(vbif_name, sizeof(vbif_name), "%d", vbif->id);
- debugfs_vbif = debugfs_create_dir(vbif_name,
- dpu_kms->debugfs_vbif);
+ debugfs_vbif = debugfs_create_dir(vbif_name, entry);
+ if (IS_ERR_OR_NULL(debugfs_vbif))
+ continue;
debugfs_create_u32("features", 0600, debugfs_vbif,
(u32 *)&vbif->features);
@@ -376,7 +370,5 @@ int dpu_debugfs_vbif_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root)
(u32 *)&cfg->ot_limit);
}
}
-
- return 0;
}
#endif
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.h
index f17af52dbbd5..6356876d7a66 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.h
@@ -78,17 +78,6 @@ void dpu_vbif_clear_errors(struct dpu_kms *dpu_kms);
*/
void dpu_vbif_init_memtypes(struct dpu_kms *dpu_kms);
-#ifdef CONFIG_DEBUG_FS
-int dpu_debugfs_vbif_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root);
-void dpu_debugfs_vbif_destroy(struct dpu_kms *dpu_kms);
-#else
-static inline int dpu_debugfs_vbif_init(struct dpu_kms *dpu_kms,
- struct dentry *debugfs_root)
-{
- return 0;
-}
-static inline void dpu_debugfs_vbif_destroy(struct dpu_kms *dpu_kms)
-{
-}
-#endif
+void dpu_debugfs_vbif_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root);
+
#endif /* __DPU_VBIF_H__ */