diff options
| author | Jason Chen <b02280@freescale.com> | 2010-07-15 11:19:08 +0800 |
|---|---|---|
| committer | Justin Waters <justin.waters@timesys.com> | 2010-12-17 12:10:49 -0500 |
| commit | 41a6985d16a96fe01fdd4613eb024e0422364460 (patch) | |
| tree | 1b0a1686043a31811f788af650ac8f4f5a691937 | |
| parent | 5bca95d1ce2b7bbcafd2806023bfd5483f57992d (diff) | |
ENGR00125173 ipuv3: remove stat check wait in _ipu_dp_dc_disable()
The stat check wait will add ipu operation time which degrade the ipu
performance.
Signed-off-by: Jason Chen <b02280@freescale.com>
| -rw-r--r-- | drivers/mxc/ipu3/ipu_disp.c | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/drivers/mxc/ipu3/ipu_disp.c b/drivers/mxc/ipu3/ipu_disp.c index 13cb42cf3fbc..a21baaf5ce49 100644 --- a/drivers/mxc/ipu3/ipu_disp.c +++ b/drivers/mxc/ipu3/ipu_disp.c @@ -775,29 +775,6 @@ void _ipu_dp_dc_disable(ipu_channel_t channel, bool swap) if (timeout <= 0) break; } - - timeout = 50; - - /* - * Wait for DC triple buffer to empty, - * this check is useful for tv overlay. - */ - if (g_dc_di_assignment[dc_chan] == 0) - while ((__raw_readl(DC_STAT) & 0x00000002) - != 0x00000002) { - msleep(2); - timeout -= 2; - if (timeout <= 0) - break; - } - else if (g_dc_di_assignment[dc_chan] == 1) - while ((__raw_readl(DC_STAT) & 0x00000020) - != 0x00000020) { - msleep(2); - timeout -= 2; - if (timeout <= 0) - break; - } return; } else { return; @@ -829,26 +806,6 @@ void _ipu_dp_dc_disable(ipu_channel_t channel, bool swap) __raw_writel(reg, DC_WR_CH_CONF(dc_chan)); spin_unlock_irqrestore(&ipu_lock, lock_flags); } else { - timeout = 50; - - /* Wait for DC triple buffer to empty */ - if (g_dc_di_assignment[dc_chan] == 0) - while ((__raw_readl(DC_STAT) & 0x00000002) - != 0x00000002) { - msleep(2); - timeout -= 2; - if (timeout <= 0) - break; - } - else if (g_dc_di_assignment[dc_chan] == 1) - while ((__raw_readl(DC_STAT) & 0x00000020) - != 0x00000020) { - msleep(2); - timeout -= 2; - if (timeout <= 0) - break; - } - spin_lock_irqsave(&ipu_lock, lock_flags); reg = __raw_readl(DC_WR_CH_CONF(dc_chan)); reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK; |