linux-kernel - [PATCH] staging: sm750fb: fix checkpatch warning architecture specific defines should be avoided

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Message-ID: <20240827193634.3291-4-riyandhiman14@gmail.com>
Date: Wed, 28 Aug 2024 01:06:37 +0530
From: Riyan Dhiman <riyandhiman14@...il.com>
To: sudipm.mukherjee@...il.com,
	teddy.wang@...iconmotion.com,
	gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org,
	linux-staging@...ts.linux.dev,
	Riyan Dhiman <riyandhiman14@...il.com>
Subject: [PATCH] staging: sm750fb: fix checkpatch warning architecture specific defines should be avoided

Abstract out x86-specific code in ddk750_init_hw() to improve
portability and adhere to kernel coding standards. Replaces
architecture-specific defines with CONFIG_X86 checks.

Fixes checkpatch warning:
- CHECK: architecture specific defines should be avoided.

Changes made:
- Create a new function sm750le_set_graphic_mode to encapsulate architecture
specifc behaviour.
- Using CONFIG_X86 instead of i386 and x86.
- Added placeholder for non-x86 architectures in sm750le_set_graphic_mode
function.

Signed-off-by: Riyan Dhiman <riyandhiman14@...il.com>
---
 drivers/staging/sm750fb/ddk750_chip.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/sm750fb/ddk750_chip.c b/drivers/staging/sm750fb/ddk750_chip.c
index 02860d3ec365..23196070bceb 100644
--- a/drivers/staging/sm750fb/ddk750_chip.c
+++ b/drivers/staging/sm750fb/ddk750_chip.c
@@ -210,6 +210,17 @@ unsigned int ddk750_get_vm_size(void)
 	return data;
 }
 
+static void sm750le_set_graphic_mode(void)
+{
+#ifdef CONFIG_X86
+	outb_p(0x88, 0x3d4);
+	outb_p(0x06, 0x3d5);
+#else
+	/* Implement an alternative method for non-x86 architectures */
+	/* This might involve memory-mapped I/O or other chip-specific methods */
+#endif
+}
+
 int ddk750_init_hw(struct initchip_param *p_init_param)
 {
 	unsigned int reg;
@@ -229,11 +240,7 @@ int ddk750_init_hw(struct initchip_param *p_init_param)
 		reg |= (VGA_CONFIGURATION_PLL | VGA_CONFIGURATION_MODE);
 		poke32(VGA_CONFIGURATION, reg);
 	} else {
-#if defined(__i386__) || defined(__x86_64__)
-		/* set graphic mode via IO method */
-		outb_p(0x88, 0x3d4);
-		outb_p(0x06, 0x3d5);
-#endif
+		sm750le_set_graphic_mode();
 	}
 
 	/* Set the Main Chip Clock */
-- 
2.46.0