From: Pallavi Kulkarni <p-kulkarni@xxxxxx>
OMAP3ISP: Fix Random System freeze on still capture
This patch adds checks for busy state of the ISP backend
Submodules before proceeding with isp stopping sequence.
Signed-off-by: Pallavi Kulkarni <p-kulkarni@xxxxxx>
Signed-off-by: Sergio Aguirre <saaguirre@xxxxxx>
---
drivers/media/video/isp/isp.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
Index: omapkernel/drivers/media/video/isp/isp.c
===================================================================
--- omapkernel.orig/drivers/media/video/isp/isp.c
+++ omapkernel/drivers/media/video/isp/isp.c
@@ -1258,7 +1258,19 @@ void isp_stop()
ispccdc_enable_lsc(0);
ispccdc_enable(0);
isppreview_enable(0);
+ while (isppreview_busy() && (timeout < 100)) {
+ timeout++;
+ mdelay(10);
+ }
+
+ timeout = 0;
ispresizer_enable(0);
+ while (ispresizer_busy() && (timeout < 100)) {
+ timeout++;
+ mdelay(10);
+ }
+
+ timeout = 0;
isp_save_ctx();
omap_writel(omap_readl(ISP_SYSCONFIG) |
ISP_SYSCONFIG_SOFTRESET, ISP_SYSCONFIG);
--
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