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* [PATCH v2 2/2] mmc: mxcmmc: fix the default value for available voltages into mxcmci_probe
@ 2014-10-08 14:24 Matteo Facchinetti
  2014-10-10  7:51 ` Sascha Hauer
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Matteo Facchinetti @ 2014-10-08 14:24 UTC (permalink / raw)
  To: chris, ulf.hansson
  Cc: shc_work, s.hauer, peter.griffin, linux-mmc, linux-kernel, agust,
	gsi, sbabic, Matteo Facchinetti

From: Matteo Facchinetti <matteo.facchinetti@sirius-es.it>

If available voltages are not given, mmc_regulator_get_supply() function
returns 0 and mxcmmc driver doesn't set a value for ocr_avail mask.

In accordance with the comment in platform_data/mmc-mxcmmc.h,
fix it, assuming MMC_VDD_32_33 | MMC_VDD_33_34 as default value.

Signed-off-by: Matteo Facchinetti <matteo.facchinetti@sirius-es.it>
---
v2:
* Add test to check if mmc->ocr_avail is setted by mmc_regulator_get_supply().
  This will prevent that it be overwritten unconditionally.
---
 drivers/mmc/host/mxcmmc.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 536a898..5316d9b 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -1077,12 +1077,14 @@ static int mxcmci_probe(struct platform_device *pdev)
 		dat3_card_detect = true;
 
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret) {
-		if (pdata && ret != -EPROBE_DEFER)
-			mmc->ocr_avail = pdata->ocr_avail ? :
-				MMC_VDD_32_33 | MMC_VDD_33_34;
+	if (ret == -EPROBE_DEFER)
+		goto out_free;
+
+	if (!mmc->ocr_avail) {
+		if (pdata && pdata->ocr_avail)
+			mmc->ocr_avail = pdata->ocr_avail;
 		else
-			goto out_free;
+			mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
 	}
 
 	if (dat3_card_detect)
-- 
1.8.3.2

^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2014-10-27 12:12 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-10-08 14:24 [PATCH v2 2/2] mmc: mxcmmc: fix the default value for available voltages into mxcmci_probe Matteo Facchinetti
2014-10-10  7:51 ` Sascha Hauer
2014-10-27 10:23 ` Matteo Facchinetti
2014-10-27 12:12 ` Ulf Hansson

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