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remove unnecessary magic number usage

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This commit is contained in:
Saleem Abdulrasool
2010-12-09 22:02:39 -08:00
parent 3c9222317e
commit 23ef239303
1 changed files with 19 additions and 39 deletions
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58
drivers/video/mxc/mxcfb_sii9022.c
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@@ -908,51 +908,28 @@ static int sii9022_init_fb(struct sii9022_tx *tx, struct fb_info *fb)
static int sii9022_blank(struct sii9022_tx *tx, struct fb_var_screeninfo *var)
{
u8 ctrl;
int ret;
u8 data;
/* cheap blanking: Video Black Mode */
ret = i2c_smbus_write_byte_data(tx->client, SII9022_TPI_REG_RQB, 0x20);
/* TODO Power down TMDS */
#if 0
ctrl = i2c_smbus_read_byte_data(tx->client, SII9022_TPI_REG_SYS_CTRL);
data = i2c_smbus_read_byte_data(tx->client, SII9022_TPI_REG_RQB);
if (tx->connection_type == CONNECTION_TYPE_HDMI)
ctrl |= SII9022_SYS_CTRL_AV_MUTE_HDMI;
/* step 3: prepare for resolution change */
ctrl |= SII9022_SYS_CTRL_TMDS_OUTPUT_POWER_DOWN;
ret = i2c_smbus_write_byte_data(tx->client,
SII9022_TPI_REG_SYS_CTRL,
ctrl);
if (ret < 0)
DEBUG("unable to prepare blank\n");
msleep(SII9022_CTRL_INFO_FRAME_DRAIN_TIME);
#endif
return ret;
return i2c_smbus_write_byte_data(tx->client,
SII9022_TPI_REG_RQB,
data | SII9022_RQB_FORCE_VIDEO_BLANK);
}
static int sii9022_unblank(struct sii9022_tx *tx, struct fb_var_screeninfo *var)
{
u8 ctrl;
int ret;
u8 data;
/* cheap blanking: Video Black Mode */
ret = i2c_smbus_write_byte_data(tx->client, SII9022_TPI_REG_RQB, 0x00);
/* TODO Power up TMDS */
#if 0
sii9022_set_vmode_registers(tx, var);
sii9022_set_avi_info_frame(tx, var);
ctrl &= ~SII9022_SYS_CTRL_TMDS_OUTPUT_POWER_DOWN;
ctrl &= ~SII9022_SYS_CTRL_AV_MUTE_HDMI;
ret = i2c_smbus_write_byte_data(tx->client,
SII9022_TPI_REG_SYS_CTRL,
ctrl);
if (ret < 0)
DEBUG("unable to enable the display\n");
#endif
return ret;
data = i2c_smbus_read_byte_data(tx->client, SII9022_TPI_REG_RQB);
return i2c_smbus_write_byte_data(tx->client,
SII9022_TPI_REG_RQB,
data & ~SII9022_RQB_FORCE_VIDEO_BLANK);
}
@@ -987,10 +964,13 @@ static int sii9022_fb_event_handler(struct notifier_block *nb,
struct fb_var_screeninfo var = {0};
fb_videomode_to_var(&var, event->info->mode);
if (*((int *)event->data) == FB_BLANK_UNBLANK)
switch (* (int *) event->data)
{
case FB_BLANK_UNBLANK:
return sii9022_unblank(tx, &var);
else
return sii9022_blank(tx, &var);
default:
return sii9022_blank(tx, &va);
}
}
break;
default: