commit cd8ac7afb0faf631381692e8842a838cd85d5def
author Pratik Patel <pratikp@codeaurora.org> Mon Oct 01 16:05:55 2012 -0700
committer Pratik Patel <pratikp@codeaurora.org> Tue Oct 02 12:14:53 2012 -0700
tree 0115ca0950653ee44daa8ba748f79cb4030d438e
parent 004745636df384619eb1f5309b93726df5ced19e

coresight: initialize buf during tmc etr probe

Initialize buf for TMC ETR to the virtual address of the allocated
buffer memory. This will ensure a read on TMC ETR device node when ETF
is the current sink doesn't fail.

Change-Id: Id23dd9502ec728567c5b137354ca2d734f9309dc
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>

drivers/coresight/coresight-tmc.c

diff --git a/drivers/coresight/coresight-tmc.c b/drivers/coresight/coresight-tmc.c
index 0be5882..13f69cd 100644
--- a/drivers/coresight/coresight-tmc.c
+++ b/drivers/coresight/coresight-tmc.c
@@ -1060,6 +1060,7 @@
 			goto err0;
 		}
 		memset(drvdata->vaddr, 0, drvdata->size);
+		drvdata->buf = drvdata->vaddr;
 		drvdata->out_mode = TMC_ETR_OUT_MODE_MEM;
 
 		ret = tmc_etr_bam_init(pdev, drvdata);