diff options
| author | Quinn Jensen <quinn.jensen@freescale.com> | 2007-10-24 21:20:51 -0600 |
|---|---|---|
| committer | Quinn Jensen <quinn.jensen@freescale.com> | 2007-10-24 21:20:51 -0600 |
| commit | ab0623cb532304b507552f4004e7492de531e816 (patch) | |
| tree | 2c2d1992ad0153072408587fad61d880cb88fb0e /drivers | |
| parent | a512507b3c7befbfcd20705774c47abbe15eea22 (diff) | |
CR ENGR00037631: Add handling of prp overflow on channel 2 under high system load.
Patch for CR ENGR00037631: Add handling of prp overflow on channel 2
under high system load. Applies to linux 2.6.22 kernel for the MX27
platform.
http://www.bitshrine.org/gpp/linux-2.6.22-mx-CR-ENGR00037631-Add-handling-of-prp-overfl.patch
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/mxc/capture/mx27_prpsw.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/media/video/mxc/capture/mx27_prpsw.c b/drivers/media/video/mxc/capture/mx27_prpsw.c index c444f95a6f82..9bf7d92e66f2 100644 --- a/drivers/media/video/mxc/capture/mx27_prpsw.c +++ b/drivers/media/video/mxc/capture/mx27_prpsw.c @@ -290,7 +290,14 @@ static irqreturn_t prp_isr(int irq, void *dev_id) * They are execlusive. */ } else if (cam->capture_on) { - if (status & (PRP_INTRSTAT_CH2BUF1 | PRP_INTRSTAT_CH2BUF2)) { + if (status & PRP_INTRSTAT_CH2OVF) + { + //printk(KERN_INFO "prphw_isr - PRP_INTRSTAT_CH2OVF: status: 0x%x\n", status); + prphw_disable(PRP_CHANNEL_2); + prphw_enable(PRP_CHANNEL_2); + cam->enc_callback(0, cam); + } + else if (status & (PRP_INTRSTAT_CH2BUF1 | PRP_INTRSTAT_CH2BUF2)) { cam->enc_callback(0, cam); } } |