soc/intel/braswell: Fix most of the issues detected by checkpatch

Fix the following errors and warnings detected by checkpatch.pl:

ERROR: that open brace { should be on the previous line
ERROR: return is not a function, parentheses are not required
WARNING: braces {} are not necessary for any arm of this statement
WARNING: line over 80 characters
WARNING: braces {} are not necessary for single statement blocks
WARNING: Avoid unnecessary line continuations
WARNING: break is not useful after a goto or return
WARNING: else is not generally useful after a break or return

False positives are generated by checkpatch for the following test:
ERROR: Macros with complex values should be enclosed in parentheses

TEST=Build for cyan

Change-Id: I19048895145b138a63100b29f829ff446ff71b58
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18871
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins)
diff --git a/src/soc/intel/braswell/acpi.c b/src/soc/intel/braswell/acpi.c
index 163d7a9..0acb90c 100644
--- a/src/soc/intel/braswell/acpi.c
+++ b/src/soc/intel/braswell/acpi.c
@@ -525,12 +525,10 @@
 	if (gnvs) {
 		acpi_create_gnvs(gnvs);
 		/* Fill in the Wifi Region id */
-		if (IS_ENABLED(CONFIG_HAVE_REGULATORY_DOMAIN)) {
+		if (IS_ENABLED(CONFIG_HAVE_REGULATORY_DOMAIN))
 			gnvs->cid1 = wifi_regulatory_domain();
-		} else {
-
+		else
 			gnvs->cid1 = WRDD_DEFAULT_REGULATORY_DOMAIN;
-		}
 		acpi_save_gnvs((unsigned long)gnvs);
 		/* And tell SMI about it */
 		smm_setup_structures(gnvs, NULL, NULL);
diff --git a/src/soc/intel/braswell/chip.h b/src/soc/intel/braswell/chip.h
index fc57a6a..8c3f143 100644
--- a/src/soc/intel/braswell/chip.h
+++ b/src/soc/intel/braswell/chip.h
@@ -58,7 +58,7 @@
 	int disable_slp_x_stretch_sus_fail;
 
 	/* LPE Audio Clock configuration. */
-	enum lpe_clk_src lpe_codec_clk_src; /* 0=xtal 1=PLL, Both are 19.2Mhz. */
+	enum lpe_clk_src lpe_codec_clk_src; /* 0=xtal 1=PLL, Both are 19.2Mhz */
 
 	/* Native SD Card controller - override controller capabilities. */
 	uint32_t sdcard_cap_low;
diff --git a/src/soc/intel/braswell/cpu.c b/src/soc/intel/braswell/cpu.c
index aae553c..96c823a 100644
--- a/src/soc/intel/braswell/cpu.c
+++ b/src/soc/intel/braswell/cpu.c
@@ -229,7 +229,6 @@
 	printk(BIOS_SPEW, "%s/%s ( %s )\n",
 			__FILE__, __func__, dev_name(dev));
 
-	if (mp_init_with_smm(cpu_bus, &mp_ops)) {
+	if (mp_init_with_smm(cpu_bus, &mp_ops))
 		printk(BIOS_ERR, "MP initialization failure.\n");
-	}
 }
diff --git a/src/soc/intel/braswell/lpe.c b/src/soc/intel/braswell/lpe.c
index 40bda12..58b5a8d7 100644
--- a/src/soc/intel/braswell/lpe.c
+++ b/src/soc/intel/braswell/lpe.c
@@ -142,9 +142,9 @@
 
 	/* Also put the address in MMIO space like on C0 BTM */
 	mmio = find_resource(dev, PCI_BASE_ADDRESS_0);
-	write32((void *)(uintptr_t)(mmio->base + FIRMWARE_REG_BASE_C0), \
+	write32((void *)(uintptr_t)(mmio->base + FIRMWARE_REG_BASE_C0),
 		res->base);
-	write32((void *)(uintptr_t)(mmio->base + FIRMWARE_REG_LENGTH_C0), \
+	write32((void *)(uintptr_t)(mmio->base + FIRMWARE_REG_LENGTH_C0),
 		res->size);
 }
 
diff --git a/src/soc/intel/braswell/southcluster.c b/src/soc/intel/braswell/southcluster.c
index 4e4d157..1c450e9 100644
--- a/src/soc/intel/braswell/southcluster.c
+++ b/src/soc/intel/braswell/southcluster.c
@@ -390,7 +390,6 @@
 	DEV_CASE(TXE) :
 		/* TXE cannot be placed in D3Hot. */
 		return 0;
-		break;
 	DEV_CASE(PCIE_PORT1) :
 	DEV_CASE(PCIE_PORT2) :
 	DEV_CASE(PCIE_PORT3) :
diff --git a/src/soc/intel/braswell/spi.c b/src/soc/intel/braswell/spi.c
index 514e70e..5121be0 100644
--- a/src/soc/intel/braswell/spi.c
+++ b/src/soc/intel/braswell/spi.c
@@ -350,43 +350,43 @@
 		optypes = (optypes & 0xfffc) | (trans->type & 0x3);
 		writew_(optypes, cntlr.optype);
 		return 0;
-	} else {
-		/* The lock is on. See if what we need is on the menu. */
-		uint8_t optype;
-		uint16_t opcode_index;
-
-		/* Write Enable is handled as atomic prefix */
-		if (trans->opcode == SPI_OPCODE_WREN)
-			return 0;
-
-		read_reg(cntlr.opmenu, opmenu, sizeof(opmenu));
-		for (opcode_index = 0; opcode_index < cntlr.menubytes;
-				opcode_index++) {
-			if (opmenu[opcode_index] == trans->opcode)
-				break;
-		}
-
-		if (opcode_index == cntlr.menubytes) {
-			printk(BIOS_DEBUG, "ICH SPI: Opcode %x not found\n",
-				trans->opcode);
-			return -1;
-		}
-
-		optypes = readw_(cntlr.optype);
-		optype = (optypes >> (opcode_index * 2)) & 0x3;
-		if (trans->type == SPI_OPCODE_TYPE_WRITE_NO_ADDRESS &&
-			optype == SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS &&
-			trans->bytesout >= 3) {
-			/* We guessed wrong earlier. Fix it up. */
-			trans->type = optype;
-		}
-		if (optype != trans->type) {
-			printk(BIOS_DEBUG, "ICH SPI: Transaction doesn't fit type %d\n",
-				optype);
-			return -1;
-		}
-		return opcode_index;
 	}
+
+	/* The lock is on. See if what we need is on the menu. */
+	uint8_t optype;
+	uint16_t opcode_index;
+
+	/* Write Enable is handled as atomic prefix */
+	if (trans->opcode == SPI_OPCODE_WREN)
+		return 0;
+
+	read_reg(cntlr.opmenu, opmenu, sizeof(opmenu));
+	for (opcode_index = 0; opcode_index < cntlr.menubytes;
+			opcode_index++) {
+		if (opmenu[opcode_index] == trans->opcode)
+			break;
+	}
+
+	if (opcode_index == cntlr.menubytes) {
+		printk(BIOS_DEBUG, "ICH SPI: Opcode %x not found\n",
+			trans->opcode);
+		return -1;
+	}
+
+	optypes = readw_(cntlr.optype);
+	optype = (optypes >> (opcode_index * 2)) & 0x3;
+	if (trans->type == SPI_OPCODE_TYPE_WRITE_NO_ADDRESS &&
+		optype == SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS &&
+		trans->bytesout >= 3) {
+		/* We guessed wrong earlier. Fix it up. */
+		trans->type = optype;
+	}
+	if (optype != trans->type) {
+		printk(BIOS_DEBUG, "ICH SPI: Transaction doesn't fit type %d\n",
+			optype);
+		return -1;
+	}
+	return opcode_index;
 }
 
 static int spi_setup_offset(spi_transaction *trans)
diff --git a/src/soc/intel/braswell/tsc_freq.c b/src/soc/intel/braswell/tsc_freq.c
index 929b6b5..b05a007 100644
--- a/src/soc/intel/braswell/tsc_freq.c
+++ b/src/soc/intel/braswell/tsc_freq.c
@@ -41,10 +41,9 @@
 unsigned int cpu_bus_freq_khz(void)
 {
 	msr_t clk_info = rdmsr(MSR_BSEL_CR_OVERCLOCK_CONTROL);
-	if ((clk_info.lo & 0xF)  < (sizeof(cpu_bus_clk_freq_table)/sizeof(unsigned int)))
-	{
-		return(cpu_bus_clk_freq_table[clk_info.lo & 0xF]);
-	}
+	if ((clk_info.lo & 0xF)
+		< (sizeof(cpu_bus_clk_freq_table) / sizeof(unsigned int)))
+		return cpu_bus_clk_freq_table[clk_info.lo & 0xF];
 	return 0;
 }
 
diff --git a/src/soc/intel/braswell/xhci.c b/src/soc/intel/braswell/xhci.c
index e3e3462..76319c0 100644
--- a/src/soc/intel/braswell/xhci.c
+++ b/src/soc/intel/braswell/xhci.c
@@ -42,7 +42,8 @@
 				config->usb_comp_bg),
 			REG_SCRIPT_END
 		};
-		printk(BIOS_INFO, "Override USB2_COMPBG to: 0x%X\n", config->usb_comp_bg);
+		printk(BIOS_INFO, "Override USB2_COMPBG to: 0x%X\n",
+			config->usb_comp_bg);
 		reg_script_run(ops);
 	}
 }