linux-kernel - [PATCH v2 4/4] staging: sm750fb: remove debug prints and convert logging in sm750

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Message-ID: <20260204101536.3311-4-iprintercanon@gmail.com>
Date: Wed,  4 Feb 2026 10:15:36 +0000
From: Artem Lytkin <iprintercanon@...il.com>
To: Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	Teddy Wang <teddy.wang@...iconmotion.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-fbdev@...r.kernel.org,
	linux-staging@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Artem Lytkin <iprintercanon@...il.com>
Subject: [PATCH v2 4/4] staging: sm750fb: remove debug prints and convert logging in sm750_hw.c

Remove diagnostic pr_info prints that dump physical and virtual
memory addresses. Convert remaining pr_err calls to dev_err in
hw_sm750_map() where struct pci_dev *pdev is available.

Signed-off-by: Artem Lytkin <iprintercanon@...il.com>
---
 drivers/staging/sm750fb/sm750_hw.c | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c
index ce46f240c..420ebe057 100644
--- a/drivers/staging/sm750fb/sm750_hw.c
+++ b/drivers/staging/sm750fb/sm750_hw.c
@@ -34,8 +34,6 @@ int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev)
 	sm750_dev->vidreg_start = pci_resource_start(pdev, 1);
 	sm750_dev->vidreg_size = SZ_2M;
 
-	pr_info("mmio phyAddr = %lx\n", sm750_dev->vidreg_start);
-
 	/*
 	 * reserve the vidreg space of smi adaptor
 	 * if you do this, you need to add release region code
@@ -44,7 +42,7 @@ int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev)
 	 */
 	ret = pci_request_region(pdev, 1, "sm750fb");
 	if (ret) {
-		pr_err("Can not request PCI regions.\n");
+		dev_err(&pdev->dev, "Can not request PCI regions.\n");
 		goto exit;
 	}
 
@@ -52,12 +50,10 @@ int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev)
 	sm750_dev->pvReg =
 		ioremap(sm750_dev->vidreg_start, sm750_dev->vidreg_size);
 	if (!sm750_dev->pvReg) {
-		pr_err("mmio failed\n");
+		dev_err(&pdev->dev, "mmio failed\n");
 		ret = -EFAULT;
 		goto exit;
 	}
-	pr_info("mmio virtual addr = %p\n", sm750_dev->pvReg);
-
 	sm750_dev->accel.dpr_base = sm750_dev->pvReg + DE_BASE_ADDR_TYPE1;
 	sm750_dev->accel.dp_port_base = sm750_dev->pvReg + DE_PORT_ADDR_TYPE1;
 
@@ -72,19 +68,16 @@ int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev)
 	 * @ddk750_get_vm_size function can be safe.
 	 */
 	sm750_dev->vidmem_size = ddk750_get_vm_size();
-	pr_info("video memory phyAddr = %lx, size = %u bytes\n",
-		sm750_dev->vidmem_start, sm750_dev->vidmem_size);
 
 	/* reserve the vidmem space of smi adaptor */
 	sm750_dev->pvMem =
 		ioremap_wc(sm750_dev->vidmem_start, sm750_dev->vidmem_size);
 	if (!sm750_dev->pvMem) {
 		iounmap(sm750_dev->pvReg);
-		pr_err("Map video memory failed\n");
+		dev_err(&pdev->dev, "Map video memory failed\n");
 		ret = -EFAULT;
 		goto exit;
 	}
-	pr_info("video memory vaddr = %p\n", sm750_dev->pvMem);
 exit:
 	return ret;
 }
@@ -163,11 +156,11 @@ int hw_sm750_inithw(struct sm750_dev *sm750_dev, struct pci_dev *pdev)
 			 * The following register values for CH7301 are from
 			 * Chrontel app note and our experiment.
 			 */
-			pr_info("yes,CH7301 DVI chip found\n");
+			dev_info(&pdev->dev, "CH7301 DVI chip found\n");
 			sm750_sw_i2c_write_reg(0xec, 0x1d, 0x16);
 			sm750_sw_i2c_write_reg(0xec, 0x21, 0x9);
 			sm750_sw_i2c_write_reg(0xec, 0x49, 0xC0);
-			pr_info("okay,CH7301 DVI chip setup done\n");
+			dev_info(&pdev->dev, "CH7301 DVI chip setup done\n");
 		}
 	}
 
-- 
2.43.0