From e107e6ebdda9b56be21951a7c58c2fa90d6e685b Mon Sep 17 00:00:00 2001 From: Marek Belisko Date: Thu, 3 Feb 2011 16:22:52 +0100 Subject: [PATCH] staging: olpc_dcon: checkpatch.pl fixes for olpc_dcon.c file. Signed-off-by: Marek Belisko Signed-off-by: Greg Kroah-Hartman --- drivers/staging/olpc_dcon/olpc_dcon.c | 84 +++++++++++++++------------ 1 file changed, 46 insertions(+), 38 deletions(-) diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c index 7221bb886857..b19cd349f933 100644 --- a/drivers/staging/olpc_dcon/olpc_dcon.c +++ b/drivers/staging/olpc_dcon/olpc_dcon.c @@ -24,7 +24,7 @@ #include #include #include -#include +#include #include #include #include @@ -87,14 +87,14 @@ static unsigned short dcon_disp_mode; /* Variables used during switches */ static int dcon_switched; static struct timespec dcon_irq_time; -static struct timespec dcon_load_time; +static struct timespec dcon_load_time; static DECLARE_WAIT_QUEUE_HEAD(dcon_wait_queue); static unsigned short normal_i2c[] = { 0x0d, I2C_CLIENT_END }; -#define dcon_write(reg,val) i2c_smbus_write_word_data(dcon_client,reg,val) -#define dcon_read(reg) i2c_smbus_read_word_data(dcon_client,reg) +#define dcon_write(reg, val) i2c_smbus_write_word_data(dcon_client, reg, val) +#define dcon_read(reg) i2c_smbus_read_word_data(dcon_client, reg) /* The current backlight value - this saves us some smbus traffic */ static int bl_val = -1; @@ -117,7 +117,8 @@ static int dcon_hw_init(struct i2c_client *client, int is_init) if (is_init) { printk(KERN_INFO "olpc-dcon: Discovered DCON version %x\n", ver & 0xFF); - if ((rc = pdata->init()) != 0) { + rc = pdata->init(); + if (rc != 0) { printk(KERN_ERR "olpc-dcon: Unable to init.\n"); goto err; } @@ -133,14 +134,13 @@ static int dcon_hw_init(struct i2c_client *client, int is_init) i2c_smbus_write_word_data(client, 0x0b, 0x007a); i2c_smbus_write_word_data(client, 0x36, 0x025c); i2c_smbus_write_word_data(client, 0x37, 0x025e); - + /* Initialise SDRAM */ i2c_smbus_write_word_data(client, 0x3b, 0x002b); i2c_smbus_write_word_data(client, 0x41, 0x0101); i2c_smbus_write_word_data(client, 0x42, 0x0101); - } - else if (!noinit) { + } else if (!noinit) { /* SDRAM setup/hold time */ i2c_smbus_write_word_data(client, 0x3a, 0xc040); i2c_smbus_write_word_data(client, 0x41, 0x0000); @@ -181,14 +181,15 @@ static int dcon_bus_stabilize(struct i2c_client *client, int is_powered_down) power_up: if (is_powered_down) { x = 1; - if ((x = olpc_ec_cmd(0x26, (unsigned char *) &x, 1, NULL, 0))) { + x = olpc_ec_cmd(0x26, (unsigned char *) &x, 1, NULL, 0); + if (x) { printk(KERN_WARNING "olpc-dcon: unable to force dcon " "to power up: %d!\n", x); return x; } msleep(10); /* we'll be conservative */ } - + pdata->bus_stabilize_wiggle(); for (x = -1, timeout = 50; timeout && x < 0; timeout--) { @@ -261,8 +262,7 @@ static int dcon_set_output(int arg) if (arg == DCON_OUTPUT_MONO) { dcon_disp_mode &= ~(MODE_CSWIZZLE | MODE_COL_AA); dcon_disp_mode |= MODE_MONO_LUMA; - } - else { + } else { dcon_disp_mode &= ~(MODE_MONO_LUMA); dcon_disp_mode |= MODE_CSWIZZLE; if (useaa) @@ -291,18 +291,18 @@ static void dcon_sleep(int state) if (state == DCON_SLEEP) { x = 0; - if ((x = olpc_ec_cmd(0x26, (unsigned char *) &x, 1, NULL, 0))) + x = olpc_ec_cmd(0x26, (unsigned char *) &x, 1, NULL, 0); + if (x) printk(KERN_WARNING "olpc-dcon: unable to force dcon " "to power down: %d!\n", x); else dcon_sleep_val = state; - } - else { + } else { /* Only re-enable the backlight if the backlight value is set */ if (bl_val != 0) dcon_disp_mode |= MODE_BL_ENABLE; - - if ((x=dcon_bus_stabilize(dcon_client, 1))) + x = dcon_bus_stabilize(dcon_client, 1); + if (x) printk(KERN_WARNING "olpc-dcon: unable to reinit dcon" " hardware: %d!\n", x); else @@ -316,14 +316,14 @@ static void dcon_sleep(int state) } /* the DCON seems to get confused if we change DCONLOAD too - * frequently -- i.e., approximately faster than frame time. + * frequently -- i.e., approximately faster than frame time. * normally we don't change it this fast, so in general we won't * delay here. */ void dcon_load_holdoff(void) { struct timespec delta_t, now; - while(1) { + while (1) { getnstimeofday(&now); delta_t = timespec_sub(now, dcon_load_time); if (delta_t.tv_sec != 0 || @@ -352,10 +352,12 @@ static void dcon_source_switch(struct work_struct *work) printk("dcon_source_switch to CPU\n"); /* Enable the scanline interrupt bit */ if (dcon_write(DCON_REG_MODE, dcon_disp_mode | MODE_SCAN_INT)) - printk(KERN_ERR "olpc-dcon: couldn't enable scanline interrupt!\n"); + printk(KERN_ERR + "olpc-dcon: couldn't enable scanline interrupt!\n"); else { /* Wait up to one second for the scanline interrupt */ - wait_event_timeout(dcon_wait_queue, dcon_switched == 1, HZ); + wait_event_timeout(dcon_wait_queue, + dcon_switched == 1, HZ); } if (!dcon_switched) @@ -396,7 +398,7 @@ static void dcon_source_switch(struct work_struct *work) int t; struct timespec delta_t; - printk("dcon_source_switch to DCON\n"); + printk(KERN_INFO "dcon_source_switch to DCON\n"); add_wait_queue(&dcon_wait_queue, &wait); set_current_state(TASK_UNINTERRUPTIBLE); @@ -420,7 +422,7 @@ static void dcon_source_switch(struct work_struct *work) * the time between asserting DCONLOAD and the IRQ -- * if it's less than 20msec, then the DCON couldn't * have seen two VSYNC pulses. in that case we - * deassert and reassert, and hope for the best. + * deassert and reassert, and hope for the best. * see http://dev.laptop.org/ticket/9664 */ delta_t = timespec_sub(dcon_irq_time, dcon_load_time); @@ -471,7 +473,8 @@ static void dcon_set_source_sync(int arg) flush_scheduled_work(); } -static int dconbl_set(struct backlight_device *dev) { +static int dconbl_set(struct backlight_device *dev) +{ int level = dev->props.brightness; @@ -482,7 +485,8 @@ static int dconbl_set(struct backlight_device *dev) { return 0; } -static int dconbl_get(struct backlight_device *dev) { +static int dconbl_get(struct backlight_device *dev) +{ return dcon_get_backlight(); } @@ -521,7 +525,7 @@ static int _strtoul(const char *buf, int len, unsigned int *val) { char *endp; - unsigned int output = simple_strtoul(buf, &endp, 0); + unsigned int output = strict_strtoul(buf, &endp, 0); int size = endp - buf; if (*endp && isspace(*endp)) @@ -559,7 +563,7 @@ static ssize_t dcon_freeze_store(struct device *dev, if (_strtoul(buf, count, &output)) return -EINVAL; - printk("dcon_freeze_store: %d\n", output); + printk(KERN_INFO "dcon_freeze_store: %d\n", output); switch (output) { case 0: @@ -568,7 +572,7 @@ static ssize_t dcon_freeze_store(struct device *dev, case 1: dcon_set_source_sync(DCON_SOURCE_DCON); break; - case 2: // normally unused + case 2: /* normally unused */ dcon_set_source(DCON_SOURCE_DCON); break; default: @@ -620,7 +624,8 @@ static const struct backlight_ops dcon_bl_ops = { }; -static int dcon_reboot_notify(struct notifier_block *nb, unsigned long foo, void *bar) +static int dcon_reboot_notify(struct notifier_block *nb, + unsigned long foo, void *bar) { if (dcon_client == NULL) return 0; @@ -636,7 +641,8 @@ static struct notifier_block dcon_nb = { .priority = -1, }; -static int unfreeze_on_panic(struct notifier_block *nb, unsigned long e, void *p) +static int unfreeze_on_panic(struct notifier_block *nb, + unsigned long e, void *p) { pdata->set_dconload(1); return NOTIFY_DONE; @@ -650,7 +656,8 @@ static struct notifier_block dcon_panic_nb = { * When the framebuffer sleeps due to external sources (e.g. user idle), power * down the DCON as well. Power it back up when the fb comes back to life. */ -static int fb_notifier_callback(struct notifier_block *self, unsigned long event, void *data) +static int fb_notifier_callback(struct notifier_block *self, + unsigned long event, void *data) { struct fb_event *evdata = data; int *blank = (int *) evdata->data; @@ -688,19 +695,20 @@ static int dcon_probe(struct i2c_client *client, const struct i2c_device_id *id) dcon_device = platform_device_alloc("dcon", -1); if (dcon_device == NULL) { - printk("dcon: Unable to create the DCON device\n"); + printk(KERN_ERR "dcon: Unable to create the DCON device\n"); rc = -ENOMEM; goto eirq; } /* Place holder...*/ i2c_set_clientdata(client, dcon_device); + rc = platform_device_add(dcon_device); - if ((rc = platform_device_add(dcon_device))) { - printk("dcon: Unable to add the DCON device\n"); + if (rc) { + printk(KERN_ERR "dcon: Unable to add the DCON device\n"); goto edev; } - for(i = 0; i < ARRAY_SIZE(dcon_device_files); i++) { + for (i = 0; i < ARRAY_SIZE(dcon_device_files); i++) { rc = device_create_file(&dcon_device->dev, &dcon_device_files[i]); if (rc) { @@ -717,10 +725,10 @@ static int dcon_probe(struct i2c_client *client, const struct i2c_device_id *id) NULL, &dcon_bl_ops, NULL); if (IS_ERR(dcon_bl_dev)) { - printk("Could not register the backlight device for the DCON (%ld)\n", PTR_ERR(dcon_bl_dev)); + printk(KERN_ERR "Cannot register the backlight device (%ld)\n", + PTR_ERR(dcon_bl_dev)); dcon_bl_dev = NULL; - } - else { + } else { dcon_bl_dev->props.max_brightness = 15; dcon_bl_dev->props.power = FB_BLANK_UNBLANK; dcon_bl_dev->props.brightness = dcon_get_backlight();