[PATCH 00/19] mfd: Lots of clean-ups

[PATCH 00/19] mfd: Lots of clean-ups

[Lee Jones]

Over the next few months, I plan to run some of our protection systems;
Checkpatch, Smatch, Sparse and Coccinelle etc on the subsystem and do my
best to eliminate some of the issues unearthed.

This is the first submission that takes care of some (reasonable)
Checkpatch warnings/errors on files [A-D].

If MAINTAINERS lists file maintainers, they have been Cc'ed.

Lee Jones (19):
  mfd: aat2870-core: Remove unnecessary 'out of memory' message
  mfd: ab3100-core.c: Fix multiple warnings reported by Checkpatch
  mfd: ab2100-otp: Remove pointless 'out of memory' error message
  mfd: ab8500-core: Fix many warnings reported by Checkpatch
  mfd: ab8500-debugfs: Clean-up non-conforming commenting and print
    formatting
  mfd: ab8500-gpadc: Squash a whole bunch of Checkpatch warnings and one
    error
  mfd: ab8500-sysctrl: Fix Constify, printk => pr_info and formatting
    issues
  mfd: adp5520: Some trivial 'no space before tab' fixes
  mfd: arizona-core: msleep() is unreliable for anything <20ms use
    usleep_range() instead
  mfd: arizona-i2c: Add blank line formatting after declaration
  mfd: as3711: Repair OOM and 'line over 80 chars' formatting warnings
  mfd: asic3: Fix a plethora of Checkpatch errors and warnings
  mfd: cros_ec_i2c: Fix trivial 'tabs before spaces' whitespace issue.
  mfd: cros_ec_spi: Repair comparison ordering issue
  mfd: cs5535-mfd: Add missing line spacing and make local array static
  mfd: da903x: Fix white space and split string issues
  mfd: da9052-i2c: Fix tabbing/whitespace issue
  mfd: da9052-irq: Fix trivial 'space before comma' error
  mfd: davinci_voicecodec: Remove pointless 'out of memory' error
    message

 drivers/mfd/aat2870-core.c       |   5 +-
 drivers/mfd/ab3100-core.c        |  23 +++----
 drivers/mfd/ab3100-otp.c         |   5 +-
 drivers/mfd/ab8500-core.c        |  24 +++----
 drivers/mfd/ab8500-debugfs.c     |  25 ++++---
 drivers/mfd/ab8500-gpadc.c       | 145 ++++++++++++++++++++-------------------
 drivers/mfd/ab8500-sysctrl.c     |  13 ++--
 drivers/mfd/adp5520.c            |   6 +-
 drivers/mfd/arizona-core.c       |   8 +--
 drivers/mfd/arizona-i2c.c        |   2 +
 drivers/mfd/as3711.c             |  28 ++++----
 drivers/mfd/asic3.c              |  27 ++++----
 drivers/mfd/cros_ec_i2c.c        |   2 +-
 drivers/mfd/cros_ec_spi.c        |   4 +-
 drivers/mfd/cs5535-mfd.c         |   6 +-
 drivers/mfd/da903x.c             |  10 +--
 drivers/mfd/da9052-i2c.c         |   2 +-
 drivers/mfd/da9052-irq.c         |   2 +-
 drivers/mfd/davinci_voicecodec.c |   5 +-
 19 files changed, 170 insertions(+), 172 deletions(-)

-- 
1.9.1

[PATCH 01/19] mfd: aat2870-core: Remove unnecessary 'out of memory' message

[Lee Jones]

WARNING: Possible unnecessary 'out of memory' message
+       if (!aat2870) {
+               dev_err(&client->dev,

total: 0 errors, 1 warnings, 524 lines checked

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/aat2870-core.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index 29b6a2d..3ba19a4 100644
--- a/drivers/mfd/aat2870-core.c
+++ b/drivers/mfd/aat2870-core.c
@@ -373,11 +373,8 @@ static int aat2870_i2c_probe(struct i2c_client *client,
 
 	aat2870 = devm_kzalloc(&client->dev, sizeof(struct aat2870_data),
 				GFP_KERNEL);
-	if (!aat2870) {
-		dev_err(&client->dev,
-			"Failed to allocate memory for aat2870\n");
+	if (!aat2870)
 		return -ENOMEM;
-	}
 
 	aat2870->dev = &client->dev;
 	dev_set_drvdata(aat2870->dev, aat2870);
-- 
1.9.1

[PATCH 02/19] mfd: ab3100-core.c: Fix multiple warnings reported by Checkpatch

[Lee Jones]

WARNING: Missing a blank line after declarations
+       struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);
+       if (!ab3100->startup_events_read)

WARNING: Possible unnecessary 'out of memory' message
+       if (!ab3100) {
+               dev_err(&client->dev, "could not allocate AB3100 device\n");

WARNING: else is not generally useful after a break or return
+                               break;
+                       } else {

total: 0 errors, 3 warnings, 996 lines checked

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ab3100-core.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c
index f0afb44..6a5a988 100644
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -381,9 +381,11 @@ static int ab3100_event_registers_startup_state_get(struct device *dev,
 					     u8 *event)
 {
 	struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);
+
 	if (!ab3100->startup_events_read)
 		return -EAGAIN; /* Try again later */
 	memcpy(event, ab3100->startup_events, 3);
+
 	return 0;
 }
 
@@ -858,10 +860,8 @@ static int ab3100_probe(struct i2c_client *client,
 	int i;
 
 	ab3100 = devm_kzalloc(&client->dev, sizeof(struct ab3100), GFP_KERNEL);
-	if (!ab3100) {
-		dev_err(&client->dev, "could not allocate AB3100 device\n");
+	if (!ab3100)
 		return -ENOMEM;
-	}
 
 	/* Initialize data structure */
 	mutex_init(&ab3100->access_mutex);
@@ -883,20 +883,17 @@ static int ab3100_probe(struct i2c_client *client,
 
 	for (i = 0; ids[i].id != 0x0; i++) {
 		if (ids[i].id == ab3100->chip_id) {
-			if (ids[i].name != NULL) {
-				snprintf(&ab3100->chip_name[0],
-					 sizeof(ab3100->chip_name) - 1,
-					 "AB3100 %s",
-					 ids[i].name);
+			if (ids[i].name)
 				break;
-			} else {
-				dev_err(&client->dev,
-					"AB3000 is not supported\n");
-				goto exit_no_detect;
-			}
+
+			dev_err(&client->dev, "AB3000 is not supported\n");
+			goto exit_no_detect;
 		}
 	}
 
+	snprintf(&ab3100->chip_name[0],
+		 sizeof(ab3100->chip_name) - 1, "AB3100 %s", ids[i].name);
+
 	if (ids[i].id == 0x0) {
 		dev_err(&client->dev, "unknown analog baseband chip id: 0x%x\n",
 			ab3100->chip_id);
-- 
1.9.1

[PATCH 03/19] mfd: ab2100-otp: Remove pointless 'out of memory' error message

[Lee Jones]

WARNING: Possible unnecessary 'out of memory' message
+       if (!otp) {
+               dev_err(&pdev->dev, "could not allocate AB3100 OTP device\n");

total: 0 errors, 1 warnings, 250 lines checked

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ab3100-otp.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/ab3100-otp.c b/drivers/mfd/ab3100-otp.c
index f391c5fe..55b207a4 100644
--- a/drivers/mfd/ab3100-otp.c
+++ b/drivers/mfd/ab3100-otp.c
@@ -188,10 +188,9 @@ static int __init ab3100_otp_probe(struct platform_device *pdev)
 	int i;
 
 	otp = devm_kzalloc(&pdev->dev, sizeof(struct ab3100_otp), GFP_KERNEL);
-	if (!otp) {
-		dev_err(&pdev->dev, "could not allocate AB3100 OTP device\n");
+	if (!otp)
 		return -ENOMEM;
-	}
+
 	otp->dev = &pdev->dev;
 
 	/* Replace platform data coming in with a local struct */
-- 
1.9.1

[PATCH 04/19] mfd: ab8500-core: Fix many warnings reported by Checkpatch

[Lee Jones]

WARNING: Block comments use a trailing */ on a separate line
+        * */

WARNING: Block comments use a trailing */ on a separate line
+        * bank on higher 8 bits and reg in lower */

WARNING: Block comments use a trailing */ on a separate line
+        * bank on higher 8 bits and reg in lower */

WARNING: suspect code indent for conditional statements (8, 24)
+       if (unlikely(*offset == 17))
+                       *offset = 24;

WARNING: suspect code indent for conditional statements (8, 24)
+       if (unlikely(*offset == 16))
+                       *offset = 25;

WARNING: suspect code indent for conditional statements (8, 24)
+       if ((i == 3) && (*offset >= 24))
+                       *offset += 2;

WARNING: ENOSYS means 'invalid syscall nr' and nothing else
+               return -ENOSYS;

WARNING: static const char * array should probably be static const char * const
+       static const char *switch_off_status[] = {

WARNING: static const char * array should probably be static const char * const
+       static const char *turn_on_status[] = {

total: 0 errors, 9 warnings, 1867 lines checked

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ab8500-core.c | 24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index fefbe4c..4080f01 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -113,7 +113,7 @@
 #define AB8500_SWITCH_OFF_STATUS	0x00
 
 #define AB8500_TURN_ON_STATUS		0x00
-#define AB8505_TURN_ON_STATUS_2	0x04
+#define AB8505_TURN_ON_STATUS_2		0x04
 
 #define AB8500_CH_USBCH_STAT1_REG	0x02
 #define VBUS_DET_DBNC100		0x02
@@ -211,7 +211,7 @@ static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
 	/*
 	 * Put the u8 bank and u8 register together into a an u16.
 	 * The bank on higher 8 bits and register in lower 8 bits.
-	 * */
+	 */
 	u16 addr = ((u16)bank) << 8 | reg;
 
 	dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
@@ -243,8 +243,6 @@ static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
 	u8 reg, u8 *value)
 {
 	int ret;
-	/* put the u8 bank and u8 reg together into a an u16.
-	 * bank on higher 8 bits and reg in lower */
 	u16 addr = ((u16)bank) << 8 | reg;
 
 	mutex_lock(&ab8500->lock);
@@ -278,8 +276,6 @@ static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
 	u8 reg, u8 bitmask, u8 bitvalues)
 {
 	int ret;
-	/* put the u8 bank and u8 reg together into a an u16.
-	 * bank on higher 8 bits and reg in lower */
 	u16 addr = ((u16)bank) << 8 | reg;
 
 	mutex_lock(&ab8500->lock);
@@ -449,12 +445,12 @@ static void update_latch_offset(u8 *offset, int i)
 {
 	/* Fix inconsistent ITFromLatch25 bit mapping... */
 	if (unlikely(*offset == 17))
-			*offset = 24;
+		*offset = 24;
 	/* Fix inconsistent ab8540 bit mapping... */
 	if (unlikely(*offset == 16))
-			*offset = 25;
+		*offset = 25;
 	if ((i == 3) && (*offset >= 24))
-			*offset += 2;
+		*offset += 2;
 }
 
 static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
@@ -590,12 +586,12 @@ static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
 
 	/* If ->irq_base is zero this will give a linear mapping */
 	ab8500->domain = irq_domain_add_simple(ab8500->dev->of_node,
-			num_irqs, 0,
-			&ab8500_irq_ops, ab8500);
+					       num_irqs, 0,
+					       &ab8500_irq_ops, ab8500);
 
 	if (!ab8500->domain) {
 		dev_err(ab8500->dev, "Failed to create irqdomain\n");
-		return -ENOSYS;
+		return -ENODEV;
 	}
 
 	return 0;
@@ -1549,7 +1545,7 @@ static struct attribute_group ab9540_attr_group = {
 
 static int ab8500_probe(struct platform_device *pdev)
 {
-	static const char *switch_off_status[] = {
+	static const char * const switch_off_status[] = {
 		"Swoff bit programming",
 		"Thermal protection activation",
 		"Vbat lower then BattOk falling threshold",
@@ -1558,7 +1554,7 @@ static int ab8500_probe(struct platform_device *pdev)
 		"Battery level lower than power on reset threshold",
 		"Power on key 1 pressed longer than 10 seconds",
 		"DB8500 thermal shutdown"};
-	static const char *turn_on_status[] = {
+	static const char * const turn_on_status[] = {
 		"Battery rising (Vbat)",
 		"Power On Key 1 dbF",
 		"Power On Key 2 dbF",
-- 
1.9.1

[PATCH 05/19] mfd: ab8500-debugfs: Clean-up non-conforming commenting and print formatting

[Lee Jones]

WARNING: Block comments use a trailing */ on a separate line
+                        * not be accessed from here */

WARNING: Block comments use a trailing */ on a separate line
+                        * not be accessed from here */

WARNING: Block comments use a trailing */ on a separate line
+                                * the output is wanted in any case */

WARNING: Consecutive strings are generally better as a single string
+               "  addr=0x%08X, mask=0x%X, shift=%d" "value=0x%X\n",

total: 0 errors, 4 warnings, 3331 lines checked

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ab8500-debugfs.c | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index 0236cd7..69d9fff 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -242,8 +242,10 @@ static struct ab8500_prcmu_ranges ab8500_debug_ranges[AB8500_NUM_BANKS] = {
 				.first = 0x40,
 				.last = 0x44,
 			},
-			/* 0x80-0x8B is SIM registers and should
-			 * not be accessed from here */
+			/*
+			 * 0x80-0x8B are SIM registers and should
+			 * not be accessed from here
+			 */
 		},
 	},
 	[AB8500_USB] = {
@@ -587,8 +589,10 @@ static struct ab8500_prcmu_ranges ab8505_debug_ranges[AB8500_NUM_BANKS] = {
 				.first = 0x40,
 				.last = 0x48,
 			},
-			/* 0x80-0x8B is SIM registers and should
-			 * not be accessed from here */
+			/*
+			 * 0x80-0x8B are SIM registers and should
+			 * not be accessed from here
+			 */
 		},
 	},
 	[AB8500_USB] = {
@@ -1306,8 +1310,10 @@ static int ab8500_registers_print(struct device *dev, u32 bank,
 			if (s) {
 				seq_printf(s, "  [0x%02X/0x%02X]: 0x%02X\n",
 					   bank, reg, value);
-				/* Error is not returned here since
-				 * the output is wanted in any case */
+				/*
+				 * Error is not returned here since
+				 * the output is wanted in any case
+				 */
 				if (seq_has_overflowed(s))
 					return 0;
 			} else {
@@ -2740,10 +2746,9 @@ static ssize_t hwreg_common_write(char *b, struct hwreg_cfg *cfg,
 	*cfg = loc;
 
 #ifdef ABB_HWREG_DEBUG
-	pr_warn("HWREG request: %s, %s,\n"
-		"  addr=0x%08X, mask=0x%X, shift=%d" "value=0x%X\n",
-		(write) ? "write" : "read",
-		REG_FMT_DEC(cfg) ? "decimal" : "hexa",
+	pr_warn("HWREG request: %s, %s,\n", (write) ? "write" : "read",
+		REG_FMT_DEC(cfg) ? "decimal" : "hexa");
+	pr_warn("  addr=0x%08X, mask=0x%X, shift=%d" "value=0x%X\n",
 		cfg->addr, cfg->mask, cfg->shift, val);
 #endif
 
-- 
1.9.1

[PATCH 06/19] mfd: ab8500-gpadc: Squash a whole bunch of Checkpatch warnings and one error

[Lee Jones]

WARNING: line over 80 characters
+#define ADC_CH_IBAT_MIN                        (-6000) /* mA range measured by ADC for ib
t*/

WARNING: line over 80 characters
+#define ADC_CH_IBAT_MIN_V              (-60)   /* mV range measured by ADC for ibat*/

WARNING: suspect code indent for conditional statements (16, 20)
+               if (!strcmp(name, dev_name(gpadc->dev)))
+                   return gpadc;

WARNING: suspect code indent for conditional statements (0, 16)
+if (ad_value < 0) {
+               dev_err(gpadc->dev, "GPADC raw value failed ch: %d\n",

WARNING: quoted string split across lines
+               dev_err(gpadc->dev, "GPADC to voltage conversion failed ch:"
+                       " %d AD: 0x%x\n", channel, ad_value);

WARNING: Missing a blank line after declarations
+       int raw_data;
+       raw_data = ab8500_gpadc_double_read_raw(gpadc, channel,

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+               msleep(10);

ERROR: else should follow close brace '}'
+       }
+       else

WARNING: line over 80 characters
+                       delay_max = 10000; /* large range to optimise sleep mode */

WARNING: line over 80 characters
+                       gpadc->cal_data[ADC_INPUT_IBAT].gain = V_gain * V2A_gain;

WARNING: line over 80 characters
+       gpadc = devm_kzalloc(&pdev->dev, sizeof(struct ab8500_gpadc), GFP_KERNEL);

WARNING: Possible unnecessary 'out of memory' message
+       if (!gpadc) {
+               dev_err(&pdev->dev, "Error: No memory\n");

WARNING: space prohibited before semicolon
+       return ;

WARNING: void function return statements are not generally useful
+       return ;
+}

WARNING: quoted string split across lines
+MODULE_AUTHOR("Arun R Murthy, Daniel Willerud, Johan Palsson,"
+               "M'boumba Cedric Madianga");

total: 1 errors, 14 warnings, 1089 lines checked

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ab8500-gpadc.c | 145 +++++++++++++++++++++++----------------------
 1 file changed, 73 insertions(+), 72 deletions(-)

diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c
index c51c1b1..97dcadc 100644
--- a/drivers/mfd/ab8500-gpadc.c
+++ b/drivers/mfd/ab8500-gpadc.c
@@ -49,61 +49,61 @@
  * OTP register offsets
  * Bank : 0x15
  */
-#define AB8500_GPADC_CAL_1		0x0F
-#define AB8500_GPADC_CAL_2		0x10
-#define AB8500_GPADC_CAL_3		0x11
-#define AB8500_GPADC_CAL_4		0x12
-#define AB8500_GPADC_CAL_5		0x13
-#define AB8500_GPADC_CAL_6		0x14
-#define AB8500_GPADC_CAL_7		0x15
+#define AB8500_GPADC_CAL_1	0x0F
+#define AB8500_GPADC_CAL_2	0x10
+#define AB8500_GPADC_CAL_3	0x11
+#define AB8500_GPADC_CAL_4	0x12
+#define AB8500_GPADC_CAL_5	0x13
+#define AB8500_GPADC_CAL_6	0x14
+#define AB8500_GPADC_CAL_7	0x15
 /* New calibration for 8540 */
 #define AB8540_GPADC_OTP4_REG_7	0x38
 #define AB8540_GPADC_OTP4_REG_6	0x39
 #define AB8540_GPADC_OTP4_REG_5	0x3A
 
 /* gpadc constants */
-#define EN_VINTCORE12			0x04
-#define EN_VTVOUT			0x02
-#define EN_GPADC			0x01
-#define DIS_GPADC			0x00
-#define AVG_1				0x00
-#define AVG_4				0x20
-#define AVG_8				0x40
-#define AVG_16				0x60
-#define ADC_SW_CONV			0x04
-#define EN_ICHAR			0x80
-#define BTEMP_PULL_UP			0x08
-#define EN_BUF				0x40
-#define DIS_ZERO			0x00
-#define GPADC_BUSY			0x01
-#define EN_FALLING			0x10
-#define EN_TRIG_EDGE			0x02
-#define EN_VBIAS_XTAL_TEMP		0x02
+#define EN_VINTCORE12		0x04
+#define EN_VTVOUT		0x02
+#define EN_GPADC		0x01
+#define DIS_GPADC		0x00
+#define AVG_1			0x00
+#define AVG_4			0x20
+#define AVG_8			0x40
+#define AVG_16			0x60
+#define ADC_SW_CONV		0x04
+#define EN_ICHAR		0x80
+#define BTEMP_PULL_UP		0x08
+#define EN_BUF			0x40
+#define DIS_ZERO		0x00
+#define GPADC_BUSY		0x01
+#define EN_FALLING		0x10
+#define EN_TRIG_EDGE		0x02
+#define EN_VBIAS_XTAL_TEMP	0x02
 
 /* GPADC constants from AB8500 spec, UM0836 */
-#define ADC_RESOLUTION			1024
-#define ADC_CH_BTEMP_MIN		0
-#define ADC_CH_BTEMP_MAX		1350
-#define ADC_CH_DIETEMP_MIN		0
-#define ADC_CH_DIETEMP_MAX		1350
-#define ADC_CH_CHG_V_MIN		0
-#define ADC_CH_CHG_V_MAX		20030
-#define ADC_CH_ACCDET2_MIN		0
-#define ADC_CH_ACCDET2_MAX		2500
-#define ADC_CH_VBAT_MIN			2300
-#define ADC_CH_VBAT_MAX			4800
-#define ADC_CH_CHG_I_MIN		0
-#define ADC_CH_CHG_I_MAX		1500
-#define ADC_CH_BKBAT_MIN		0
-#define ADC_CH_BKBAT_MAX		3200
+#define ADC_RESOLUTION		1024
+#define ADC_CH_BTEMP_MIN	0
+#define ADC_CH_BTEMP_MAX	1350
+#define ADC_CH_DIETEMP_MIN	0
+#define ADC_CH_DIETEMP_MAX	1350
+#define ADC_CH_CHG_V_MIN	0
+#define ADC_CH_CHG_V_MAX	20030
+#define ADC_CH_ACCDET2_MIN	0
+#define ADC_CH_ACCDET2_MAX	2500
+#define ADC_CH_VBAT_MIN		2300
+#define ADC_CH_VBAT_MAX		4800
+#define ADC_CH_CHG_I_MIN	0
+#define ADC_CH_CHG_I_MAX	1500
+#define ADC_CH_BKBAT_MIN	0
+#define ADC_CH_BKBAT_MAX	3200
 
 /* GPADC constants from AB8540 spec */
-#define ADC_CH_IBAT_MIN			(-6000) /* mA range measured by ADC for ibat*/
-#define ADC_CH_IBAT_MAX			6000
-#define ADC_CH_IBAT_MIN_V		(-60)	/* mV range measured by ADC for ibat*/
-#define ADC_CH_IBAT_MAX_V		60
-#define IBAT_VDROP_L			(-56)  /* mV */
-#define IBAT_VDROP_H			56
+#define ADC_CH_IBAT_MIN		(-6000) /* mA range measured by ADC for ibat */
+#define ADC_CH_IBAT_MAX		6000
+#define ADC_CH_IBAT_MIN_V	(-60)	/* mV range measured by ADC for ibat */
+#define ADC_CH_IBAT_MAX_V	60
+#define IBAT_VDROP_L		(-56)  /* mV */
+#define IBAT_VDROP_H		56
 
 /* This is used to not lose precision when dividing to get gain and offset */
 #define CALIB_SCALE		1000
@@ -179,7 +179,7 @@ struct ab8500_gpadc *ab8500_gpadc_get(char *name)
 
 	list_for_each_entry(gpadc, &ab8500_gpadc_list, node) {
 		if (!strcmp(name, dev_name(gpadc->dev)))
-		    return gpadc;
+			return gpadc;
 	}
 
 	return ERR_PTR(-ENOENT);
@@ -315,11 +315,12 @@ int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel,
 
 	ad_value = ab8500_gpadc_read_raw(gpadc, channel, avg_sample,
 			trig_edge, trig_timer, conv_type);
-/* On failure retry a second time */
+
+	/* On failure retry a second time */
 	if (ad_value < 0)
 		ad_value = ab8500_gpadc_read_raw(gpadc, channel, avg_sample,
 			trig_edge, trig_timer, conv_type);
-if (ad_value < 0) {
+	if (ad_value < 0) {
 		dev_err(gpadc->dev, "GPADC raw value failed ch: %d\n",
 				channel);
 		return ad_value;
@@ -327,8 +328,9 @@ if (ad_value < 0) {
 
 	voltage = ab8500_gpadc_ad_to_voltage(gpadc, channel, ad_value);
 	if (voltage < 0)
-		dev_err(gpadc->dev, "GPADC to voltage conversion failed ch:"
-			" %d AD: 0x%x\n", channel, ad_value);
+		dev_err(gpadc->dev,
+			"GPADC to voltage conversion failed ch: %d AD: 0x%x\n",
+			channel, ad_value);
 
 	return voltage;
 }
@@ -348,10 +350,9 @@ EXPORT_SYMBOL(ab8500_gpadc_sw_hw_convert);
 int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
 		u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type)
 {
-	int raw_data;
-	raw_data = ab8500_gpadc_double_read_raw(gpadc, channel,
-			avg_sample, trig_edge, trig_timer, conv_type, NULL);
-	return raw_data;
+	return ab8500_gpadc_double_read_raw(gpadc, channel, avg_sample,
+					    trig_edge, trig_timer, conv_type,
+					    NULL);
 }
 
 int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
@@ -388,7 +389,7 @@ int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
 			goto out;
 		if (!(val & GPADC_BUSY))
 			break;
-		msleep(10);
+		msleep(20);
 	} while (++looplimit < 10);
 	if (looplimit >= 10 && (val & GPADC_BUSY)) {
 		dev_err(gpadc->dev, "gpadc_conversion: GPADC busy");
@@ -421,8 +422,7 @@ int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
 		val_reg1 |= EN_TRIG_EDGE;
 		if (trig_edge)
 			val_reg1 |= EN_FALLING;
-	}
-	else
+	} else
 		ret = abx500_set_register_interruptible(gpadc->dev,
 				AB8500_GPADC, AB8500_GPADC_CTRL2_REG, val);
 	if (ret < 0) {
@@ -449,7 +449,7 @@ int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
 			* remove when hardware will be availible
 			*/
 			delay_min = 1000; /* Delay in micro seconds */
-			delay_max = 10000; /* large range to optimise sleep mode */
+			delay_max = 10000; /* large range optimises sleepmode */
 			break;
 		}
 		/* Intentional fallthrough */
@@ -785,9 +785,10 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc)
 				<< CALIB_SHIFT_IBAT)
 				/ (ADC_CH_IBAT_MAX_V - ADC_CH_IBAT_MIN_V);
 
-			gpadc->cal_data[ADC_INPUT_IBAT].gain = V_gain * V2A_gain;
-			gpadc->cal_data[ADC_INPUT_IBAT].offset = V_offset *
-				V2A_gain + V2A_offset;
+			gpadc->cal_data[ADC_INPUT_IBAT].gain =
+				V_gain * V2A_gain;
+			gpadc->cal_data[ADC_INPUT_IBAT].offset =
+				V_offset * V2A_gain + V2A_offset;
 		} else {
 			gpadc->cal_data[ADC_INPUT_IBAT].gain = 0;
 		}
@@ -923,11 +924,10 @@ static int ab8500_gpadc_probe(struct platform_device *pdev)
 	int ret = 0;
 	struct ab8500_gpadc *gpadc;
 
-	gpadc = devm_kzalloc(&pdev->dev, sizeof(struct ab8500_gpadc), GFP_KERNEL);
-	if (!gpadc) {
-		dev_err(&pdev->dev, "Error: No memory\n");
+	gpadc = devm_kzalloc(&pdev->dev,
+			     sizeof(struct ab8500_gpadc), GFP_KERNEL);
+	if (!gpadc)
 		return -ENOMEM;
-	}
 
 	gpadc->irq_sw = platform_get_irq_byname(pdev, "SW_CONV_END");
 	if (gpadc->irq_sw < 0)
@@ -1072,18 +1072,19 @@ void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc,
 	*vmain_h = gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi;
 	*btemp_l = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_lo;
 	*btemp_h = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_hi;
-	*vbat_l = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo;
-	*vbat_h = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi;
-	*ibat_l = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo;
-	*ibat_h = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi;
-	return ;
+	*vbat_l  = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo;
+	*vbat_h  = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi;
+	*ibat_l  = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo;
+	*ibat_h  = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi;
 }
 
 subsys_initcall_sync(ab8500_gpadc_init);
 module_exit(ab8500_gpadc_exit);
 
 MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Arun R Murthy, Daniel Willerud, Johan Palsson,"
-		"M'boumba Cedric Madianga");
+MODULE_AUTHOR("Arun R Murthy");
+MODULE_AUTHOR("Daniel Willerud");
+MODULE_AUTHOR("Johan Palsson");
+MODULE_AUTHOR("M'boumba Cedric Madianga");
 MODULE_ALIAS("platform:ab8500_gpadc");
 MODULE_DESCRIPTION("AB8500 GPADC driver");
-- 
1.9.1

[PATCH 07/19] mfd: ab8500-sysctrl: Fix Constify, printk => pr_info and formatting issues

[Lee Jones]

WARNING: char * array declaration might be better as static const
+       static char *pss[] = {"ab8500_ac", "pm2301", "ab8500_usb"};

WARNING: Prefer [subsystem eg: netdev]_info([subsystem]dev, ... then dev_info(dev, ... then
 pr_info(...  to printk(KERN_INFO ...
+                       printk(KERN_INFO

WARNING: quoted string split across lines
+                              "Charger \"%s\" is connected with known battery."
+                              " Rebooting.\n",

WARNING: quoted string split across lines
+                                       "unable to set sysClkReq%dRfClkBuf: "
+                                       "%d\n", j + 1, ret);

total: 0 errors, 4 warnings, 199 lines checked

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ab8500-sysctrl.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
index 0d18256..b9f0010 100644
--- a/drivers/mfd/ab8500-sysctrl.c
+++ b/drivers/mfd/ab8500-sysctrl.c
@@ -27,7 +27,7 @@ static void ab8500_power_off(void)
 {
 	sigset_t old;
 	sigset_t all;
-	static char *pss[] = {"ab8500_ac", "pm2301", "ab8500_usb"};
+	static const char * const pss[] = {"ab8500_ac", "pm2301", "ab8500_usb"};
 	int i;
 	bool charger_present = false;
 	union power_supply_propval val;
@@ -68,10 +68,9 @@ static void ab8500_power_off(void)
 		ret = power_supply_get_property(psy,
 				POWER_SUPPLY_PROP_TECHNOLOGY, &val);
 		if (!ret && val.intval != POWER_SUPPLY_TECHNOLOGY_UNKNOWN) {
-			printk(KERN_INFO
-			       "Charger \"%s\" is connected with known battery."
-			       " Rebooting.\n",
-			       pss[i]);
+			pr_info("Charger '%s' is connected with known battery",
+				pss[i]);
+			pr_info(" - Rebooting.\n");
 			machine_restart("charging");
 		}
 		power_supply_put(psy);
@@ -161,8 +160,8 @@ static int ab8500_sysctrl_probe(struct platform_device *pdev)
 					pdata->initial_req_buf_config[j]);
 			if (ret < 0) {
 				dev_err(&pdev->dev,
-					"unable to set sysClkReq%dRfClkBuf: "
-					"%d\n", j + 1, ret);
+					"Can't set sysClkReq%dRfClkBuf: %d\n",
+					j + 1, ret);
 			}
 		}
 	}
-- 
1.9.1

[PATCH 08/19] mfd: adp5520: Some trivial 'no space before tab' fixes

[Lee Jones]

WARNING: please, no space before tabs
+ * ^IMike Rapoport <mike@compulab.co.il>$

WARNING: please, no space before tabs
+ * ^IEric Miao <eric.miao@marvell.com>$

WARNING: please, no space before tabs
+^I.id_table ^I= adp5520_id,$

total: 0 errors, 3 warnings, 365 lines checked

Cc: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/adp5520.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/adp5520.c b/drivers/mfd/adp5520.c
index ae88654..d817f20 100644
--- a/drivers/mfd/adp5520.c
+++ b/drivers/mfd/adp5520.c
@@ -9,10 +9,10 @@
  *
  * Derived from da903x:
  * Copyright (C) 2008 Compulab, Ltd.
- * 	Mike Rapoport <mike@compulab.co.il>
+ *	Mike Rapoport <mike@compulab.co.il>
  *
  * Copyright (C) 2006-2008 Marvell International Ltd.
- * 	Eric Miao <eric.miao@marvell.com>
+ *	Eric Miao <eric.miao@marvell.com>
  *
  * Licensed under the GPL-2 or later.
  */
@@ -355,7 +355,7 @@ static struct i2c_driver adp5520_driver = {
 	},
 	.probe		= adp5520_probe,
 	.remove		= adp5520_remove,
-	.id_table 	= adp5520_id,
+	.id_table	= adp5520_id,
 };
 
 module_i2c_driver(adp5520_driver);
-- 
1.9.1

[PATCH 09/19] mfd: arizona-core: msleep() is unreliable for anything <20ms use usleep_range() instead

[Lee Jones]

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+               msleep(1);

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+                       msleep(5);

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+               msleep(1);

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+               msleep(1);

total: 0 errors, 4 warnings, 1407 lines checked

Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/arizona-core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 44cfdbb..ceba17ca 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -239,7 +239,7 @@ static int arizona_poll_reg(struct arizona *arizona,
 		if ((val & mask) == target)
 			return 0;
 
-		msleep(1);
+		usleep_range(1000, 5000);
 	}
 
 	dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val);
@@ -280,14 +280,14 @@ static void arizona_disable_reset(struct arizona *arizona)
 		case WM5110:
 		case WM8280:
 			/* Meet requirements for minimum reset duration */
-			msleep(5);
+			usleep_range(5000, 10000);
 			break;
 		default:
 			break;
 		}
 
 		gpio_set_value_cansleep(arizona->pdata.reset, 1);
-		msleep(1);
+		usleep_range(1000, 5000);
 	}
 }
 
@@ -1045,7 +1045,7 @@ int arizona_dev_init(struct arizona *arizona)
 			goto err_reset;
 		}
 
-		msleep(1);
+		usleep_range(1000, 5000);
 	}
 
 	/* Ensure device startup is complete */
-- 
1.9.1

Re: [PATCH 09/19] mfd: arizona-core: msleep() is unreliable for anything <20ms use usleep_range() instead

[Charles Keepax]

On Mon, Dec 07, 2015 at 11:50:22AM +0000, Lee Jones wrote:
> WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
> +               msleep(1);
> 
> WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
> +                       msleep(5);
> 
> WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
> +               msleep(1);
> 
> WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
> +               msleep(1);
> 
> total: 0 errors, 4 warnings, 1407 lines checked
> 
> Cc: patches@opensource.wolfsonmicro.com
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---

This doesn't actually appear to cc patches. But all looks good:

Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>

Thanks,
Charles

Re: [PATCH 09/19] mfd: arizona-core: msleep() is unreliable for anything <20ms use usleep_range() instead

[Lee Jones]

On Tue, 08 Dec 2015, Charles Keepax wrote:

> On Mon, Dec 07, 2015 at 11:50:22AM +0000, Lee Jones wrote:
> > WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
> > +               msleep(1);
> > 
> > WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
> > +                       msleep(5);
> > 
> > WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
> > +               msleep(1);
> > 
> > WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
> > +               msleep(1);
> > 
> > total: 0 errors, 4 warnings, 1407 lines checked
> > 
> > Cc: patches@opensource.wolfsonmicro.com
> > Signed-off-by: Lee Jones <lee.jones@linaro.org>
> > ---
> 
> This doesn't actually appear to cc patches. But all looks good:

That's odd.  I have no overrides in place and --[no-]signed-off-by-cc
should default to --signed-off-by-cc.
> 
> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>

Ta

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

[PATCH 10/19] mfd: arizona-i2c: Add blank line formatting after declaration

[Lee Jones]

WARNING: Missing a blank line after declarations
+       struct arizona *arizona = dev_get_drvdata(&i2c->dev);
+       arizona_dev_exit(arizona);

total: 0 errors, 1 warnings, 120 lines checked

Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/arizona-i2c.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c
index cea1b40..68c3e99 100644
--- a/drivers/mfd/arizona-i2c.c
+++ b/drivers/mfd/arizona-i2c.c
@@ -87,7 +87,9 @@ static int arizona_i2c_probe(struct i2c_client *i2c,
 static int arizona_i2c_remove(struct i2c_client *i2c)
 {
 	struct arizona *arizona = dev_get_drvdata(&i2c->dev);
+
 	arizona_dev_exit(arizona);
+
 	return 0;
 }
 
-- 
1.9.1

Re: [PATCH 10/19] mfd: arizona-i2c: Add blank line formatting after declaration

[Charles Keepax]

On Mon, Dec 07, 2015 at 11:50:23AM +0000, Lee Jones wrote:
> WARNING: Missing a blank line after declarations
> +       struct arizona *arizona = dev_get_drvdata(&i2c->dev);
> +       arizona_dev_exit(arizona);
> 
> total: 0 errors, 1 warnings, 120 lines checked
> 
> Cc: patches@opensource.wolfsonmicro.com
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---

Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>

Thanks,
Charles

[PATCH 11/19] mfd: as3711: Repair OOM and 'line over 80 chars' formatting warnings

[Lee Jones]

WARNING: Possible unnecessary 'out of memory' message
+               if (!pdata) {
+                       dev_err(&client->dev, "Failed to allocate pdata\n");

WARNING: Possible unnecessary 'out of memory' message
+       if (!as3711) {
+               dev_err(&client->dev, "Memory allocation failed\n");

WARNING: line over 80 characters
+               dev_err(&client->dev, "regmap initialization failed: %d\n", ret);

WARNING: line over 80 characters
+       /* We can reuse as3711_subdevs[], it will be copied in mfd_add_devices() */

WARNING: line over 80 characters
+               as3711_subdevs[AS3711_REGULATOR].platform_data = &pdata->regulator;

WARNING: line over 80 characters
+               as3711_subdevs[AS3711_REGULATOR].pdata_size = sizeof(pdata->regulator);

WARNING: line over 80 characters
+               as3711_subdevs[AS3711_BACKLIGHT].platform_data = &pdata->backlight;

WARNING: line over 80 characters
+               as3711_subdevs[AS3711_BACKLIGHT].pdata_size = sizeof(pdata->backlight);

total: 0 errors, 8 warnings, 236 lines checked

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/as3711.c | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/drivers/mfd/as3711.c b/drivers/mfd/as3711.c
index d001f7e2..94d67a6 100644
--- a/drivers/mfd/as3711.c
+++ b/drivers/mfd/as3711.c
@@ -136,17 +136,13 @@ static int as3711_i2c_probe(struct i2c_client *client,
 	} else {
 		pdata = devm_kzalloc(&client->dev,
 				     sizeof(*pdata), GFP_KERNEL);
-		if (!pdata) {
-			dev_err(&client->dev, "Failed to allocate pdata\n");
+		if (!pdata)
 			return -ENOMEM;
-		}
 	}
 
 	as3711 = devm_kzalloc(&client->dev, sizeof(struct as3711), GFP_KERNEL);
-	if (!as3711) {
-		dev_err(&client->dev, "Memory allocation failed\n");
+	if (!as3711)
 		return -ENOMEM;
-	}
 
 	as3711->dev = &client->dev;
 	i2c_set_clientdata(client, as3711);
@@ -157,7 +153,8 @@ static int as3711_i2c_probe(struct i2c_client *client,
 	as3711->regmap = devm_regmap_init_i2c(client, &as3711_regmap_config);
 	if (IS_ERR(as3711->regmap)) {
 		ret = PTR_ERR(as3711->regmap);
-		dev_err(&client->dev, "regmap initialization failed: %d\n", ret);
+		dev_err(&client->dev,
+			"regmap initialization failed: %d\n", ret);
 		return ret;
 	}
 
@@ -172,12 +169,19 @@ static int as3711_i2c_probe(struct i2c_client *client,
 		return -ENODEV;
 	dev_info(as3711->dev, "AS3711 detected: %x:%x\n", id1, id2);
 
-	/* We can reuse as3711_subdevs[], it will be copied in mfd_add_devices() */
+	/*
+	 * We can reuse as3711_subdevs[],
+	 * it will be copied in mfd_add_devices()
+	 */
 	if (pdata) {
-		as3711_subdevs[AS3711_REGULATOR].platform_data = &pdata->regulator;
-		as3711_subdevs[AS3711_REGULATOR].pdata_size = sizeof(pdata->regulator);
-		as3711_subdevs[AS3711_BACKLIGHT].platform_data = &pdata->backlight;
-		as3711_subdevs[AS3711_BACKLIGHT].pdata_size = sizeof(pdata->backlight);
+		as3711_subdevs[AS3711_REGULATOR].platform_data =
+			&pdata->regulator;
+		as3711_subdevs[AS3711_REGULATOR].pdata_size =
+			sizeof(pdata->regulator);
+		as3711_subdevs[AS3711_BACKLIGHT].platform_data =
+			&pdata->backlight;
+		as3711_subdevs[AS3711_BACKLIGHT].pdata_size =
+			sizeof(pdata->backlight);
 	} else {
 		as3711_subdevs[AS3711_REGULATOR].platform_data = NULL;
 		as3711_subdevs[AS3711_REGULATOR].pdata_size = 0;
-- 
1.9.1

[PATCH 12/19] mfd: asic3: Fix a plethora of Checkpatch errors and warnings

[Lee Jones]

ERROR: Macros with complex values should be enclosed in parentheses
+#define INIT_CDEX(_name, _rate)        \
+       [ASIC3_CLOCK_##_name] = {               \
+               .cdex = CLOCK_CDEX_##_name,     \
+               .rate = _rate,                  \
+       }

WARNING: line over 80 characters
+                                                           ASIC3_GPIO_INT_STATUS);

WARNING: void function return statements are not generally useful
+       return;
+}

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+       msleep(1);

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+       msleep(1);

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+       msleep(1);

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+       msleep(1);

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+       msleep(1);

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+       msleep(1);

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+               msleep(1);
WARNING: line over 80 characters
+               asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >> asic->bus_shift) +

WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ... then dev_err(dev, ... then p
r_err(...  to printk(KERN_ERR ...
+               printk(KERN_ERR "kzalloc failed\n");

WARNING: Possible unnecessary 'out of memory' message
+       if (asic == NULL) {
+               printk(KERN_ERR "kzalloc failed\n");

WARNING: Missing a blank line after declarations
+       int retval = 0;
+       retval = platform_driver_probe(&asic3_device_driver, asic3_probe);

total: 1 errors, 13 warnings, 1081 lines checked

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/asic3.c | 27 ++++++++++++---------------
 1 file changed, 12 insertions(+), 15 deletions(-)

diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index a726f01..d09f805 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -167,7 +167,6 @@ static void asic3_irq_demux(struct irq_desc *desc)
 
 				base = ASIC3_GPIO_A_BASE
 				       + bank * ASIC3_GPIO_BASE_INCR;
-
 				spin_lock_irqsave(&asic->lock, flags);
 				istat = asic3_read_register(asic,
 							    base +
@@ -536,8 +535,6 @@ static void asic3_gpio_set(struct gpio_chip *chip,
 	asic3_write_register(asic, gpio_base + ASIC3_GPIO_OUT, out_reg);
 
 	spin_unlock_irqrestore(&asic->lock, flags);
-
-	return;
 }
 
 static int asic3_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
@@ -665,18 +662,18 @@ static int ds1wm_enable(struct platform_device *pdev)
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_EX0]);
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_EX1]);
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_OWM]);
-	msleep(1);
+	usleep_range(1000, 5000);
 
 	/* Reset and enable DS1WM */
 	asic3_set_register(asic, ASIC3_OFFSET(EXTCF, RESET),
 			   ASIC3_EXTCF_OWM_RESET, 1);
-	msleep(1);
+	usleep_range(1000, 5000);
 	asic3_set_register(asic, ASIC3_OFFSET(EXTCF, RESET),
 			   ASIC3_EXTCF_OWM_RESET, 0);
-	msleep(1);
+	usleep_range(1000, 5000);
 	asic3_set_register(asic, ASIC3_OFFSET(EXTCF, SELECT),
 			   ASIC3_EXTCF_OWM_EN, 1);
-	msleep(1);
+	usleep_range(1000, 5000);
 
 	return 0;
 }
@@ -757,7 +754,7 @@ static int asic3_mmc_enable(struct platform_device *pdev)
 	 * when HCLK is stopped.
 	 */
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_EX1]);
-	msleep(1);
+	usleep_range(1000, 5000);
 
 	/* HCLK 24.576 MHz, BCLK 12.288 MHz: */
 	asic3_write_register(asic, ASIC3_OFFSET(CLOCK, SEL),
@@ -765,7 +762,7 @@ static int asic3_mmc_enable(struct platform_device *pdev)
 
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_SD_HOST]);
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_SD_BUS]);
-	msleep(1);
+	usleep_range(1000, 5000);
 
 	asic3_set_register(asic, ASIC3_OFFSET(EXTCF, SELECT),
 			   ASIC3_EXTCF_SD_MEM_ENABLE, 1);
@@ -841,7 +838,7 @@ static int asic3_leds_suspend(struct platform_device *pdev)
 	struct asic3 *asic = dev_get_drvdata(pdev->dev.parent);
 
 	while (asic3_gpio_get(&asic->gpio, ASIC3_GPIO(C, cell->id)) != 0)
-		msleep(1);
+		usleep_range(1000, 5000);
 
 	asic3_clk_disable(asic, &asic->clocks[clock_ledn[cell->id]]);
 
@@ -900,8 +897,8 @@ static int __init asic3_mfd_probe(struct platform_device *pdev,
 
 	/* MMC */
 	if (mem_sdio) {
-		asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >> asic->bus_shift) +
-				 mem_sdio->start,
+		asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >>
+					  asic->bus_shift) + mem_sdio->start,
 				 ASIC3_SD_CONFIG_SIZE >> asic->bus_shift);
 		if (!asic->tmio_cnf) {
 			ret = -ENOMEM;
@@ -962,10 +959,8 @@ static int __init asic3_probe(struct platform_device *pdev)
 
 	asic = devm_kzalloc(&pdev->dev,
 			    sizeof(struct asic3), GFP_KERNEL);
-	if (asic == NULL) {
-		printk(KERN_ERR "kzalloc failed\n");
+	if (!asic)
 		return -ENOMEM;
-	}
 
 	spin_lock_init(&asic->lock);
 	platform_set_drvdata(pdev, asic);
@@ -1074,7 +1069,9 @@ static struct platform_driver asic3_device_driver = {
 static int __init asic3_init(void)
 {
 	int retval = 0;
+
 	retval = platform_driver_probe(&asic3_device_driver, asic3_probe);
+
 	return retval;
 }
 
-- 
1.9.1

[PATCH 13/19] mfd: cros_ec_i2c: Fix trivial 'tabs before spaces' whitespace issue.

[Lee Jones]

ERROR: code indent should use tabs where possible
+ ^Iec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);$

WARNING: please, no space before tabs
+ ^Iec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);$

WARNING: please, no spaces at the start of a line
+ ^Iec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);$

total: 1 errors, 2 warnings, 366 lines checked

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/cros_ec_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/cros_ec_i2c.c b/drivers/mfd/cros_ec_i2c.c
index d06e4b4..43db7bd 100644
--- a/drivers/mfd/cros_ec_i2c.c
+++ b/drivers/mfd/cros_ec_i2c.c
@@ -292,7 +292,7 @@ static int cros_ec_i2c_probe(struct i2c_client *client,
 	struct cros_ec_device *ec_dev = NULL;
 	int err;
 
- 	ec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);
+	ec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);
 	if (!ec_dev)
 		return -ENOMEM;
 
-- 
1.9.1

[PATCH 14/19] mfd: cros_ec_spi: Repair comparison ordering issue

[Lee Jones]

WARNING: Comparisons should place the constant on the right side of the test
+       BUG_ON(EC_MSG_PREAMBLE_COUNT > ec_dev->din_size);

WARNING: Comparisons should place the constant on the right side of the test
+       BUG_ON(EC_MSG_PREAMBLE_COUNT > ec_dev->din_size);

total: 0 errors, 2 warnings, 731 lines checked

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/cros_ec_spi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c
index 30a296b..e1b121c 100644
--- a/drivers/mfd/cros_ec_spi.c
+++ b/drivers/mfd/cros_ec_spi.c
@@ -175,7 +175,7 @@ static int cros_ec_spi_receive_packet(struct cros_ec_device *ec_dev,
 	unsigned long deadline;
 	int todo;
 
-	BUG_ON(EC_MSG_PREAMBLE_COUNT > ec_dev->din_size);
+	BUG_ON(ec_dev->din_size < EC_MSG_PREAMBLE_COUNT);
 
 	/* Receive data until we see the header byte */
 	deadline = jiffies + msecs_to_jiffies(EC_MSG_DEADLINE_MS);
@@ -283,7 +283,7 @@ static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev,
 	unsigned long deadline;
 	int todo;
 
-	BUG_ON(EC_MSG_PREAMBLE_COUNT > ec_dev->din_size);
+	BUG_ON(ec_dev->din_size < EC_MSG_PREAMBLE_COUNT);
 
 	/* Receive data until we see the header byte */
 	deadline = jiffies + msecs_to_jiffies(EC_MSG_DEADLINE_MS);
-- 
1.9.1

[PATCH 15/19] mfd: cs5535-mfd: Add missing line spacing and make local array static

[Lee Jones]

WARNING: Missing a blank line after declarations
+       struct resource *res;
+       res = platform_get_resource(pdev, IORESOURCE_IO, 0);

WARNING: char * array declaration might be better as static const
+       const char *acpi_clones[] = { "olpc-xo1-pm-acpi", "olpc-xo1-sci-acpi" };

total: 0 errors, 2 warnings, 192 lines checked

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/cs5535-mfd.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c
index be91cb5..f9d277ff 100644
--- a/drivers/mfd/cs5535-mfd.c
+++ b/drivers/mfd/cs5535-mfd.c
@@ -60,6 +60,7 @@ static int cs5535_mfd_res_enable(struct platform_device *pdev)
 static int cs5535_mfd_res_disable(struct platform_device *pdev)
 {
 	struct resource *res;
+
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "can't fetch device resource info\n");
@@ -114,7 +115,10 @@ static struct mfd_cell cs5535_mfd_cells[] = {
 #ifdef CONFIG_OLPC
 static void cs5535_clone_olpc_cells(void)
 {
-	const char *acpi_clones[] = { "olpc-xo1-pm-acpi", "olpc-xo1-sci-acpi" };
+	static const char *acpi_clones[] = {
+		"olpc-xo1-pm-acpi",
+		"olpc-xo1-sci-acpi"
+	};
 
 	if (!machine_is_olpc())
 		return;
-- 
1.9.1

[PATCH 16/19] mfd: da903x: Fix white space and split string issues

[Lee Jones]

While we're at it, let's also match the MODULE_LICENSE with the header.

WARNING: please, no space before tabs
+ * ^IMike Rapoport <mike@compulab.co.il>$

WARNING: please, no space before tabs
+ * ^IEric Miao <eric.miao@marvell.com>$

WARNING: quoted string split across lines
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
+             "Mike Rapoport <mike@compulab.co.il>");

total: 0 errors, 3 warnings, 574 lines checked

Cc: Support Opensource <support.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/da903x.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/mfd/da903x.c b/drivers/mfd/da903x.c
index ef7fe2a..cf3e7a2 100644
--- a/drivers/mfd/da903x.c
+++ b/drivers/mfd/da903x.c
@@ -2,10 +2,10 @@
  * Base driver for Dialog Semiconductor DA9030/DA9034
  *
  * Copyright (C) 2008 Compulab, Ltd.
- * 	Mike Rapoport <mike@compulab.co.il>
+ *	Mike Rapoport <mike@compulab.co.il>
  *
  * Copyright (C) 2006-2008 Marvell International Ltd.
- * 	Eric Miao <eric.miao@marvell.com>
+ *	Eric Miao <eric.miao@marvell.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -569,6 +569,6 @@ static void __exit da903x_exit(void)
 module_exit(da903x_exit);
 
 MODULE_DESCRIPTION("PMIC Driver for Dialog Semiconductor DA9034");
-MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
-	      "Mike Rapoport <mike@compulab.co.il>");
-MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>");
+MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
+MODULE_LICENSE("GPL v2");
-- 
1.9.1

[PATCH 17/19] mfd: da9052-i2c: Fix tabbing/whitespace issue

[Lee Jones]

WARNING: suspect code indent for conditional statements (8, 24)
+       if (!i2c_safe_reg(reg))
+                       return regmap_read(da9052->regmap,

total: 0 errors, 1 warnings, 226 lines checked

Cc: Support Opensource <support.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/da9052-i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/da9052-i2c.c b/drivers/mfd/da9052-i2c.c
index 0288700..d2feaa1 100644
--- a/drivers/mfd/da9052-i2c.c
+++ b/drivers/mfd/da9052-i2c.c
@@ -70,7 +70,7 @@ static int da9052_i2c_fix(struct da9052 *da9052, unsigned char reg)
 	case DA9053_BA:
 	case DA9053_BB:
 		/* A dummy read to a safe register address. */
-	if (!i2c_safe_reg(reg))
+		if (!i2c_safe_reg(reg))
 			return regmap_read(da9052->regmap,
 					   DA9052_PARK_REGISTER,
 					   &val);
-- 
1.9.1

[PATCH 18/19] mfd: da9052-irq: Fix trivial 'space before comma' error

[Lee Jones]

ERROR: space prohibited before that ',' (ctx:WxW)
+       da9052_free_irq(da9052, DA9052_IRQ_ADC_EOM , da9052);

total: 1 errors, 0 warnings, 290 lines checked

Cc: Support Opensource <support.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/da9052-irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/da9052-irq.c b/drivers/mfd/da9052-irq.c
index f4cb461..cd4ca84 100644
--- a/drivers/mfd/da9052-irq.c
+++ b/drivers/mfd/da9052-irq.c
@@ -283,7 +283,7 @@ regmap_err:
 
 int da9052_irq_exit(struct da9052 *da9052)
 {
-	da9052_free_irq(da9052, DA9052_IRQ_ADC_EOM , da9052);
+	da9052_free_irq(da9052, DA9052_IRQ_ADC_EOM, da9052);
 	regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data);
 
 	return 0;
-- 
1.9.1

[PATCH 19/19] mfd: davinci_voicecodec: Remove pointless 'out of memory' error message

[Lee Jones]

WARNING: Possible unnecessary 'out of memory' message
+       if (!davinci_vc) {
+               dev_dbg(&pdev->dev,

total: 0 errors, 1 warnings, 154 lines checked

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/davinci_voicecodec.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/mfd/davinci_voicecodec.c b/drivers/mfd/davinci_voicecodec.c
index 9bbc642..dff2f19 100644
--- a/drivers/mfd/davinci_voicecodec.c
+++ b/drivers/mfd/davinci_voicecodec.c
@@ -47,11 +47,8 @@ static int __init davinci_vc_probe(struct platform_device *pdev)
 
 	davinci_vc = devm_kzalloc(&pdev->dev,
 				  sizeof(struct davinci_vc), GFP_KERNEL);
-	if (!davinci_vc) {
-		dev_dbg(&pdev->dev,
-			    "could not allocate memory for private data\n");
+	if (!davinci_vc)
 		return -ENOMEM;
-	}
 
 	davinci_vc->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(davinci_vc->clk)) {
-- 
1.9.1