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Message-ID: <20220610091459.17612-19-Sergey.Semin@baikalelectronics.ru>
Date: Fri, 10 Jun 2022 12:14:53 +0300
From: Serge Semin <Sergey.Semin@...kalelectronics.ru>
To: Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
Vinod Koul <vkoul@...nel.org>, Rob Herring <robh@...nel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Jingoo Han <jingoohan1@...il.com>, Frank Li <Frank.Li@....com>,
Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
CC: Serge Semin <Sergey.Semin@...kalelectronics.ru>,
Serge Semin <fancer.lancer@...il.com>,
Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
Krzysztof Wilczyński <kw@...ux.com>,
<linux-pci@...r.kernel.org>, <dmaengine@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH v3 18/24] dmaengine: dw-edma: Use DMA-engine device DebugFS subdirectory
Since all DW eDMA read and write channels are now installed in a framework
of a single DMA-engine device, we can freely move all the DW eDMA-specific
DebugFS nodes into a ready-to-use DMA-engine DebugFS subdirectory. It's
created during the DMA-device registration and can be found in the
dma_device.dbg_dev_root field.
Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
drivers/dma/dw-edma/dw-edma-core.c | 3 ---
drivers/dma/dw-edma/dw-edma-core.h | 3 ---
drivers/dma/dw-edma/dw-edma-v0-core.c | 5 -----
drivers/dma/dw-edma/dw-edma-v0-core.h | 1 -
drivers/dma/dw-edma/dw-edma-v0-debugfs.c | 16 ++++------------
drivers/dma/dw-edma/dw-edma-v0-debugfs.h | 5 -----
6 files changed, 4 insertions(+), 29 deletions(-)
diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c
index f5124e7b50cf..7ba3b60c960c 100644
--- a/drivers/dma/dw-edma/dw-edma-core.c
+++ b/drivers/dma/dw-edma/dw-edma-core.c
@@ -1050,9 +1050,6 @@ int dw_edma_remove(struct dw_edma_chip *chip)
list_del(&chan->vc.chan.device_node);
}
- /* Turn debugfs off */
- dw_edma_v0_core_debugfs_off(dw);
-
return 0;
}
EXPORT_SYMBOL_GPL(dw_edma_remove);
diff --git a/drivers/dma/dw-edma/dw-edma-core.h b/drivers/dma/dw-edma/dw-edma-core.h
index b576a8fff45a..e3ad3e372b55 100644
--- a/drivers/dma/dw-edma/dw-edma-core.h
+++ b/drivers/dma/dw-edma/dw-edma-core.h
@@ -111,9 +111,6 @@ struct dw_edma {
raw_spinlock_t lock; /* Only for legacy */
struct dw_edma_chip *chip;
-#ifdef CONFIG_DEBUG_FS
- struct dentry *debugfs;
-#endif /* CONFIG_DEBUG_FS */
};
struct dw_edma_sg {
diff --git a/drivers/dma/dw-edma/dw-edma-v0-core.c b/drivers/dma/dw-edma/dw-edma-v0-core.c
index 2d3f74ccc340..e6d611176891 100644
--- a/drivers/dma/dw-edma/dw-edma-v0-core.c
+++ b/drivers/dma/dw-edma/dw-edma-v0-core.c
@@ -511,8 +511,3 @@ void dw_edma_v0_core_debugfs_on(struct dw_edma *dw)
{
dw_edma_v0_debugfs_on(dw);
}
-
-void dw_edma_v0_core_debugfs_off(struct dw_edma *dw)
-{
- dw_edma_v0_debugfs_off(dw);
-}
diff --git a/drivers/dma/dw-edma/dw-edma-v0-core.h b/drivers/dma/dw-edma/dw-edma-v0-core.h
index 75aec6d31b21..ab96a1f48080 100644
--- a/drivers/dma/dw-edma/dw-edma-v0-core.h
+++ b/drivers/dma/dw-edma/dw-edma-v0-core.h
@@ -23,6 +23,5 @@ void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first);
int dw_edma_v0_core_device_config(struct dw_edma_chan *chan);
/* eDMA debug fs callbacks */
void dw_edma_v0_core_debugfs_on(struct dw_edma *dw);
-void dw_edma_v0_core_debugfs_off(struct dw_edma *dw);
#endif /* _DW_EDMA_V0_CORE_H */
diff --git a/drivers/dma/dw-edma/dw-edma-v0-debugfs.c b/drivers/dma/dw-edma/dw-edma-v0-debugfs.c
index e6cf608d121b..d12c607433bf 100644
--- a/drivers/dma/dw-edma/dw-edma-v0-debugfs.c
+++ b/drivers/dma/dw-edma/dw-edma-v0-debugfs.c
@@ -268,7 +268,7 @@ static void dw_edma_debugfs_regs(struct dw_edma *dw)
struct dentry *regs_dent;
int nr_entries;
- regs_dent = debugfs_create_dir(REGISTERS_STR, dw->debugfs);
+ regs_dent = debugfs_create_dir(REGISTERS_STR, dw->dma.dbg_dev_root);
nr_entries = ARRAY_SIZE(debugfs_regs);
dw_edma_debugfs_create_x32(dw, debugfs_regs, nr_entries, regs_dent);
@@ -282,17 +282,9 @@ void dw_edma_v0_debugfs_on(struct dw_edma *dw)
if (!debugfs_initialized())
return;
- dw->debugfs = debugfs_create_dir(dw->name, NULL);
-
- debugfs_create_u32("mf", 0444, dw->debugfs, &dw->chip->mf);
- debugfs_create_u16("wr_ch_cnt", 0444, dw->debugfs, &dw->wr_ch_cnt);
- debugfs_create_u16("rd_ch_cnt", 0444, dw->debugfs, &dw->rd_ch_cnt);
+ debugfs_create_u32("mf", 0444, dw->dma.dbg_dev_root, &dw->chip->mf);
+ debugfs_create_u16("wr_ch_cnt", 0444, dw->dma.dbg_dev_root, &dw->wr_ch_cnt);
+ debugfs_create_u16("rd_ch_cnt", 0444, dw->dma.dbg_dev_root, &dw->rd_ch_cnt);
dw_edma_debugfs_regs(dw);
}
-
-void dw_edma_v0_debugfs_off(struct dw_edma *dw)
-{
- debugfs_remove_recursive(dw->debugfs);
- dw->debugfs = NULL;
-}
diff --git a/drivers/dma/dw-edma/dw-edma-v0-debugfs.h b/drivers/dma/dw-edma/dw-edma-v0-debugfs.h
index 3391b86edf5a..fb3342d97d6d 100644
--- a/drivers/dma/dw-edma/dw-edma-v0-debugfs.h
+++ b/drivers/dma/dw-edma/dw-edma-v0-debugfs.h
@@ -13,15 +13,10 @@
#ifdef CONFIG_DEBUG_FS
void dw_edma_v0_debugfs_on(struct dw_edma *dw);
-void dw_edma_v0_debugfs_off(struct dw_edma *dw);
#else
static inline void dw_edma_v0_debugfs_on(struct dw_edma *dw)
{
}
-
-static inline void dw_edma_v0_debugfs_off(struct dw_edma *dw)
-{
-}
#endif /* CONFIG_DEBUG_FS */
#endif /* _DW_EDMA_V0_DEBUG_FS_H */
--
2.35.1
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