Merge tag 'mmc-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
authorLinus Torvalds <torvalds@linux-foundation.org>
Fri, 15 Dec 2017 20:49:54 +0000 (12:49 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 15 Dec 2017 20:49:54 +0000 (12:49 -0800)
Pull MMC fixes from Ulf Hansson:
 "A couple of MMC fixes:

   - fix use of uninitialized drv_typ variable

   - apply NO_CMD23 quirk to some specific SD cards to make them work"

* tag 'mmc-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: core: apply NO_CMD23 quirk to some specific cards
  mmc: core: properly init drv_type

drivers/mmc/core/card.h
drivers/mmc/core/mmc.c
drivers/mmc/core/quirks.h

index f06cd91964ce970b0c623dd662c335eb0fc4dadb..79a5b985ccf5ee8fe5ba06b5aec717f36799794e 100644 (file)
@@ -75,9 +75,11 @@ struct mmc_fixup {
 #define EXT_CSD_REV_ANY (-1u)
 
 #define CID_MANFID_SANDISK      0x2
+#define CID_MANFID_ATP          0x9
 #define CID_MANFID_TOSHIBA      0x11
 #define CID_MANFID_MICRON       0x13
 #define CID_MANFID_SAMSUNG      0x15
+#define CID_MANFID_APACER       0x27
 #define CID_MANFID_KINGSTON     0x70
 #define CID_MANFID_HYNIX       0x90
 
index d209fb466979015d3d668beab293e60b9657c0fc..208a762b87ef2876914d641b38fc61858429a22e 100644 (file)
@@ -1290,7 +1290,7 @@ out_err:
 
 static void mmc_select_driver_type(struct mmc_card *card)
 {
-       int card_drv_type, drive_strength, drv_type;
+       int card_drv_type, drive_strength, drv_type = 0;
        int fixed_drv_type = card->host->fixed_drv_type;
 
        card_drv_type = card->ext_csd.raw_driver_strength |
index f664e9cbc9f8b66aa9f4f3c8fdd55882d99c8c79..75d317623852dc9f55586e41a176311a48144e1d 100644 (file)
@@ -52,6 +52,14 @@ static const struct mmc_fixup mmc_blk_fixups[] = {
        MMC_FIXUP("MMC32G", CID_MANFID_TOSHIBA, CID_OEMID_ANY, add_quirk_mmc,
                  MMC_QUIRK_BLK_NO_CMD23),
 
+       /*
+        * Some SD cards lockup while using CMD23 multiblock transfers.
+        */
+       MMC_FIXUP("AF SD", CID_MANFID_ATP, CID_OEMID_ANY, add_quirk_sd,
+                 MMC_QUIRK_BLK_NO_CMD23),
+       MMC_FIXUP("APUSD", CID_MANFID_APACER, 0x5048, add_quirk_sd,
+                 MMC_QUIRK_BLK_NO_CMD23),
+
        /*
         * Some MMC cards need longer data read timeout than indicated in CSD.
         */