In (3fcb027 ARM: MXC: mxcmmc: work around a bug in the SDHC busy line
handling) the optional init_card() callback was added. According to
the original change it was "for now only called from
mmc_sdio_init_card()".
This callback really ought to be called from the SD and MMC init
functions as well. One current user of this callback
(mxcmci_init_card) will not work as expected if you insert an SDIO
card, then eject it and put a normal SD card in. Specifically the
normal SD card will not get to run with 4-bit data.
I'd like to use the init_card() callback to handle a similar quirk on
dw_mmc when using SDIO Interrupts (the "low power" feature of the card
needs to be disabled), so that will add a second user of the function.
Signed-off-by: Doug Anderson <dianders@xxxxxxxxxxxx>
Reviewed-by: Grant Grundler <grundler@xxxxxxxxxxxx>
---
Changes in v5:
- Split fixup to pandora_wl1251_init_card() into its own patch.
Changes in v3:
- Add fixup to pandora_wl1251_init_card().
Changes in v2:
- mmc core change new for this version.
drivers/mmc/core/mmc.c | 6 ++++++
drivers/mmc/core/sd.c | 7 ++++++-
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 02ad792..4a21d66 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1297,6 +1297,12 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
}
/*
+ * Call the optional HC's init_card function to handle quirks.
+ */
+ if (host->ops->init_card)
+ host->ops->init_card(host, card);
+
+ /*
* For native busses: set card RCA and quit open drain mode.
*/
if (!mmc_host_is_spi(host)) {
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index d90a6de..29fccdc 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -933,6 +933,12 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
}
/*
+ * Call the optional HC's init_card function to handle quirks.
+ */
+ if (host->ops->init_card)
+ host->ops->init_card(host, card);
+
+ /*
* For native busses: get card RCA and quit open drain mode.
*/
if (!mmc_host_is_spi(host)) {
@@ -1271,4 +1277,3 @@ err:
return err;
}
-
--
2.2.0.rc0.207.ga3a616c
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