From 5adc83c203167f77dd9b975ee275e3014287d6c7 Mon Sep 17 00:00:00 2001 From: merge Date: Thu, 4 Dec 2008 22:02:02 +0000 Subject: MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-stable-tracking-hist-1228427992-1228428064 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-stable-tracking-hist-1228427992-1228428064 / a02b19a9e543d49f2217ebd7f743a4082ecc0290 ... parent commitmessage: From: merge MERGE-via-stable-tracking-hist-MERGE-via-stable-tracking-hist-1228427992 stable-tracking-hist top was MERGE-via-stable-tracking-hist-1228427992 / 5fa26c730284f8aaa399f0a034988e786f383bda ... parent commitmessage: From: merge MERGE-stable-tracking-patchset-edits --- drivers/video/display/jbt6k74.c | 104 ++++++++++++++++++---------------------- 1 file changed, 47 insertions(+), 57 deletions(-) (limited to 'drivers/video/display') diff --git a/drivers/video/display/jbt6k74.c b/drivers/video/display/jbt6k74.c index 3d87c736534..cd2e2713f51 100644 --- a/drivers/video/display/jbt6k74.c +++ b/drivers/video/display/jbt6k74.c @@ -252,36 +252,22 @@ static int jbt_init_regs(struct jbt_info *jbt, int qvga) return rc ? -EIO : 0; } -int jbt6k74_display_onoff(struct jbt_info *jbt, int on) -{ - if (on) - return jbt_reg_write_nodata(jbt, JBT_REG_DISPLAY_ON); - else - return jbt_reg_write_nodata(jbt, JBT_REG_DISPLAY_OFF); -} -EXPORT_SYMBOL_GPL(jbt6k74_display_onoff); - static int standby_to_sleep(struct jbt_info *jbt) { - static int once = 0; - if (!once++) { - int rc; - - /* three times command zero */ - rc = jbt_reg_write_nodata(jbt, 0x00); - mdelay(1); - rc |= jbt_reg_write_nodata(jbt, 0x00); - mdelay(1); - rc |= jbt_reg_write_nodata(jbt, 0x00); - mdelay(1); - - /* deep standby out */ - rc |= jbt_reg_write(jbt, JBT_REG_POWER_ON_OFF, 0x17); - - return rc ? -EIO : 0; - } - else - return 0; + int rc; + + /* three times command zero */ + rc = jbt_reg_write_nodata(jbt, 0x00); + mdelay(1); + rc |= jbt_reg_write_nodata(jbt, 0x00); + mdelay(1); + rc |= jbt_reg_write_nodata(jbt, 0x00); + mdelay(1); + + /* deep standby out */ + rc |= jbt_reg_write(jbt, JBT_REG_POWER_ON_OFF, 0x17); + + return rc ? -EIO : 0; } static int sleep_to_normal(struct jbt_info *jbt) @@ -306,9 +292,6 @@ static int sleep_to_normal(struct jbt_info *jbt) /* initialize register set */ rc |= jbt_init_regs(jbt, 0); - /* Turn on display */ - rc |= jbt6k74_display_onoff(jbt, 1); - return rc ? -EIO : 0; } @@ -334,9 +317,6 @@ static int sleep_to_qvga_normal(struct jbt_info *jbt) /* initialize register set for qvga*/ rc |= jbt_init_regs(jbt, 1); - /* Turn on display */ - rc |= jbt6k74_display_onoff(jbt, 1); - return rc ? -EIO : 0; } @@ -344,8 +324,7 @@ static int normal_to_sleep(struct jbt_info *jbt) { int rc; - rc = jbt6k74_display_onoff(jbt, 0); - rc |= jbt_reg_write_nodata(jbt, JBT_REG_DISPLAY_OFF); + rc = jbt_reg_write_nodata(jbt, JBT_REG_DISPLAY_OFF); rc |= jbt_reg_write16(jbt, JBT_REG_OUTPUT_CONTROL, 0x8002); rc |= jbt_reg_write_nodata(jbt, JBT_REG_SLEEP_IN); @@ -354,11 +333,7 @@ static int normal_to_sleep(struct jbt_info *jbt) static int sleep_to_standby(struct jbt_info *jbt) { -#if 0 return jbt_reg_write(jbt, JBT_REG_POWER_ON_OFF, 0x00); -#else - return 0; -#endif } /* frontend function */ @@ -461,7 +436,6 @@ int jbt6k74_enter_state(struct jbt_info *jbt, enum jbt_state new_state) } break; } - if (rc == 0) jbt->state = new_state; @@ -469,6 +443,15 @@ int jbt6k74_enter_state(struct jbt_info *jbt, enum jbt_state new_state) } EXPORT_SYMBOL_GPL(jbt6k74_enter_state); +int jbt6k74_display_onoff(struct jbt_info *jbt, int on) +{ + if (on) + return jbt_reg_write_nodata(jbt, JBT_REG_DISPLAY_ON); + else + return jbt_reg_write_nodata(jbt, JBT_REG_DISPLAY_OFF); +} +EXPORT_SYMBOL_GPL(jbt6k74_display_onoff); + static ssize_t state_read(struct device *dev, struct device_attribute *attr, char *buf) { @@ -492,6 +475,17 @@ static ssize_t state_write(struct device *dev, struct device_attribute *attr, rc = jbt6k74_enter_state(jbt, i); if (rc) return rc; + switch (i) { + case JBT_STATE_NORMAL: + case JBT_STATE_QVGA_NORMAL: + /* Enable display again after deep-standby */ + rc = jbt6k74_display_onoff(jbt, 1); + if (rc) + return rc; + break; + default: + break; + } return count; } } @@ -534,8 +528,6 @@ static ssize_t gamma_write(struct device *dev, struct device_attribute *attr, int reg = reg_by_string(attr->attr.name); unsigned long val = simple_strtoul(buf, NULL, 10); - dev_info(dev, "**** jbt6k74 writing gama %lu\n", val & 0xff); - jbt_reg_write(jbt, reg, val & 0xff); return count; @@ -617,27 +609,19 @@ static int fb_notifier_callback(struct notifier_block *self, switch (fb_blank) { case FB_BLANK_UNBLANK: - dev_info(&jbt->spi_dev->dev, "**** jbt6k74 unblank\n"); - break; case FB_BLANK_NORMAL: - dev_info(&jbt->spi_dev->dev, "**** jbt6k74 normal\n"); - /*jbt6k74_enter_state(jbt, JBT_STATE_NORMAL); - jbt6k74_display_onoff(jbt, 1); */ + jbt6k74_enter_state(jbt, JBT_STATE_NORMAL); + jbt6k74_display_onoff(jbt, 1); break; case FB_BLANK_VSYNC_SUSPEND: - dev_info(&jbt->spi_dev->dev, "**** jbt6k74 vsync suspend\n"); - break; case FB_BLANK_HSYNC_SUSPEND: - dev_info(&jbt->spi_dev->dev, "**** jbt6k74 hsync suspend\n"); /* FIXME: we disable SLEEP since it would result in * a visible artefact (white screen) before the backlight * is dimmed to a dark enough level */ /* jbt6k74_enter_state(jbt, JBT_STATE_SLEEP); */ - /*jbt6k74_display_onoff(jbt, 0);*/ break; case FB_BLANK_POWERDOWN: - dev_info(&jbt->spi_dev->dev, "**** jbt6k74 powerdown\n"); - /*jbt6k74_enter_state(jbt, JBT_STATE_DEEP_STANDBY);*/ + jbt6k74_enter_state(jbt, JBT_STATE_DEEP_STANDBY); break; } @@ -694,10 +678,16 @@ static int __devinit jbt_probe(struct spi_device *spi) goto err_free_drvdata; } + rc = jbt6k74_display_onoff(jbt, 1); + if (rc < 0) { + dev_err(&spi->dev, "cannot switch display on\n"); + goto err_standby; + } + rc = sysfs_create_group(&spi->dev.kobj, &jbt_attr_group); if (rc < 0) { dev_err(&spi->dev, "cannot create sysfs group\n"); - goto err_standby; + goto err_off; } jbt->fb_notif.notifier_call = fb_notifier_callback; @@ -714,6 +704,8 @@ static int __devinit jbt_probe(struct spi_device *spi) err_sysfs: sysfs_remove_group(&spi->dev.kobj, &jbt_attr_group); +err_off: + jbt6k74_display_onoff(jbt, 0); err_standby: jbt6k74_enter_state(jbt, JBT_STATE_DEEP_STANDBY); err_free_drvdata: @@ -752,8 +744,6 @@ static int jbt_suspend(struct spi_device *spi, pm_message_t state) /* (jbt6k74_pdata->reset)(0, 0); */ - dev_info(&spi->dev, "**** jbt6k74 suspend end\n"); - return 0; } -- cgit v1.2.3