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[1/3] ath10k: fix calibration init sequence of qca99x0

Message ID 1459352551-11773-1-git-send-email-rmanohar@qti.qualcomm.com (mailing list archive)
State Changes Requested
Headers show

Commit Message

Rajkumar Manoharan March 30, 2016, 3:42 p.m. UTC
pre-calibration is meant for qca4019 which contains only caldata
whereas calibration file is used by ar9888 and qca99x0 that contains
both board data and caldata. So by definition both pre-cal-file and
cal-file can not coexist. Keeping them in shared memory (union), is
breaking boot sequence of qca99x0. Fix it by storing both binaries
in separate memories. This issue is reported in ipq8064 platform which
includes caldata in flash memory.

Reported-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

Kalle Valo April 5, 2016, 12:40 p.m. UTC | #1
Rajkumar Manoharan <rmanohar@qti.qualcomm.com> writes:

> pre-calibration is meant for qca4019 which contains only caldata
> whereas calibration file is used by ar9888 and qca99x0 that contains
> both board data and caldata. So by definition both pre-cal-file and
> cal-file can not coexist. Keeping them in shared memory (union), is
> breaking boot sequence of qca99x0. Fix it by storing both binaries
> in separate memories. This issue is reported in ipq8064 platform which
> includes caldata in flash memory.
>
> Reported-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>

I added the fixes line in the pending branch:

Fixes: 3d9195ea19e4 ("ath10k: incorporate qca4019 cal data download sequence")
Rajkumar Manoharan April 5, 2016, 1:32 p.m. UTC | #2
On 2016-04-05 18:10, Valo, Kalle wrote:
> Rajkumar Manoharan <rmanohar@qti.qualcomm.com> writes:
> 
>> pre-calibration is meant for qca4019 which contains only caldata
>> whereas calibration file is used by ar9888 and qca99x0 that contains
>> both board data and caldata. So by definition both pre-cal-file and
>> cal-file can not coexist. Keeping them in shared memory (union), is
>> breaking boot sequence of qca99x0. Fix it by storing both binaries
>> in separate memories. This issue is reported in ipq8064 platform which
>> includes caldata in flash memory.
>> 
>> Reported-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
>> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
> 
> I added the fixes line in the pending branch:
> 
> Fixes: 3d9195ea19e4 ("ath10k: incorporate qca4019 cal data download 
> sequence")

Thanks.

-Rajkumar
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Patch

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index b6c157e..a7d04bc 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -725,10 +725,8 @@  struct ath10k {
 	const void *firmware_data;
 	size_t firmware_len;
 
-	union {
-		const struct firmware *pre_cal_file;
-		const struct firmware *cal_file;
-	};
+	const struct firmware *pre_cal_file;
+	const struct firmware *cal_file;
 
 	struct {
 		const void *firmware_codeswap_data;