Re: [PATCH 1/2] AM35xx: Runtime detection of the device

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Hi,

On Tue, Oct 27, 2009 at 10:08:54PM +0100, Balbi Felipe (Nokia-D/Helsinki) wrote:
From: Felipe Balbi <felipe.balbi@xxxxxxxxx>
Subject: [PATCH] arm: omap: code cleanup to id.c

Cleanup the coding style in id.c while avoiding unneeded switch()
statements.

Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxx>
---

diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 1c15112..dbdeb09 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -53,11 +53,11 @@ int omap_type(void)
{
	u32 val = 0;

-	if (cpu_is_omap24xx())
+	if (cpu_is_omap24xx()) {
		val = omap_ctrl_readl(OMAP24XX_CONTROL_STATUS);
-	else if (cpu_is_omap34xx())
+	} else if (cpu_is_omap34xx()) {
		val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS);
-	else {
+	} else {
		pr_err("Cannot detect omap type!\n");
		goto out;
	}
@@ -224,24 +224,14 @@ void __init omap3_check_revision(void)
			omap_revision = OMAP3430_REV_ES3_0;
			break;
		case 4:
-			omap_revision = OMAP3430_REV_ES3_1;
-			break;
+		/* FALLTHROUGH */
		default:
			/* Use the latest known revision as default */
			omap_revision = OMAP3430_REV_ES3_1;
		}
		break;
	case 0xb891:
-		/* Handle 36xx devices */
-		switch (rev) {
-		case 0:
-			omap_revision = OMAP3630_REV_ES1_0;
-			break;
-		default:
-			/* Use the latest known revision as default */
-			omap_revision = OMAP3630_REV_ES1_0;
-		}
-		break;
+	/* FALLTHROUGH */
	default:
		/* Unknown default to latest silicon rev as default*/
		omap_revision = OMAP3630_REV_ES1_0;
@@ -266,19 +256,17 @@ void __init omap3_cpuinfo(void)
	 * on available features. Upon detection, update the CPU id
	 * and CPU class bits.
	 */
-	if (cpu_is_omap3630())
+	if (cpu_is_omap3630()) {
		strcpy(cpu_name, "3630");
-	else if (omap3_has_iva() && omap3_has_sgx())
+	} else if (omap3_has_iva() && omap3_has_sgx()) {
		strcpy(cpu_name, "3430/3530");
-	else if (omap3_has_sgx()) {
+	} else if (omap3_has_sgx()) {
		omap_revision = OMAP3525_REV(rev);
		strcpy(cpu_name, "3525");
-	}
-	else if (omap3_has_iva()) {
+	} else if (omap3_has_iva()) {
		omap_revision = OMAP3515_REV(rev);
		strcpy(cpu_name, "3515");
-	}
-	else {
+	} else {
		omap_revision = OMAP3503_REV(rev);
		strcpy(cpu_name, "3503");
	}
@@ -297,8 +285,7 @@ void __init omap3_cpuinfo(void)
		strcpy(cpu_rev, "3.0");
		break;
	case OMAP_REVBITS_40:
-		strcpy(cpu_rev, "3.1");
-		break;
+	/* FALLTHROUGH */
	default:
		/* Use the latest known revision as default */
		strcpy(cpu_rev, "3.1");
@@ -325,18 +312,18 @@ void __init omap2_check_revision(void)
	 * At this point we have an idea about the processor revision set
	 * earlier with omap2_set_globals_tap().
	 */
-	if (cpu_is_omap24xx())
+	if (cpu_is_omap24xx()) {
		omap24xx_check_revision();
-	else if (cpu_is_omap34xx()) {
+	} else if (cpu_is_omap34xx()) {
		omap3_check_features();
		omap3_check_revision();
		omap3_cpuinfo();
-	}
-	else if (cpu_is_omap44xx()) {
+	} else if (cpu_is_omap44xx()) {
		printk(KERN_INFO "FIXME: CPU revision = OMAP4430\n");
		return;
-	} else
+	} else {
		pr_err("OMAP revision unknown, please fix!\n");
+	}

	/*
	 * OK, now we know the exact revision. Initialize omap_chip bits

how about this patch, any comments ??

--
balbi
--
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