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[Adam Lee <adam.lee@xxxxxxxxxxxxx>]

Public bug reported:

It's a regression introduced by a27fbf2f067b0cd ("mmc: add ignorance
case for CMD13 CRC error") from v3.13, only trusty is affected.

This commit could fix it:

>From 5027251eced6e34315a52bd841279df957f627bb Mon Sep 17 00:00:00 2001
From: Micky Ching <micky_ching@xxxxxxxxxxxxxx>
Date: Thu, 27 Mar 2014 13:35:04 +0800
Subject: [PATCH] mmc: rtsx: add R1-no-CRC mmc command type handle

a27fbf2f067b0cd ("mmc: add ignorance case for CMD13 CRC error") produced
a cmd.flags unhandled in realtek pci host driver. This will make MMC
card fail to initialize, this patch is used to handle the new cmd.flags
condition and MMC card can be used.

Signed-off-by: Micky Ching <micky_ching@xxxxxxxxxxxxxx>
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Chris Ball <chris@xxxxxxxxxx>
---
 drivers/mmc/host/rtsx_pci_sdmmc.c | 3 +++
 1 file changed, 3 insertions(+)

** Affects: hwe-next
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu)
     Importance: High
     Assignee: Adam Lee (adam8157)
         Status: In Progress

** Description changed:

  It's a regression introduced by a27fbf2f067b0cd ("mmc: add ignorance
- case for CMD13 CRC error").
+ case for CMD13 CRC error") from v3.13, only trusty is affected.
  
  This commit could fix it:
  
  From 5027251eced6e34315a52bd841279df957f627bb Mon Sep 17 00:00:00 2001
  From: Micky Ching <micky_ching@xxxxxxxxxxxxxx>
  Date: Thu, 27 Mar 2014 13:35:04 +0800
  Subject: [PATCH] mmc: rtsx: add R1-no-CRC mmc command type handle
  
  a27fbf2f067b0cd ("mmc: add ignorance case for CMD13 CRC error") produced
  a cmd.flags unhandled in realtek pci host driver. This will make MMC
  card fail to initialize, this patch is used to handle the new cmd.flags
  condition and MMC card can be used.
  
  Signed-off-by: Micky Ching <micky_ching@xxxxxxxxxxxxxx>
  Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
  Signed-off-by: Chris Ball <chris@xxxxxxxxxx>
  ---
-  drivers/mmc/host/rtsx_pci_sdmmc.c | 3 +++
-  1 file changed, 3 insertions(+)
+  drivers/mmc/host/rtsx_pci_sdmmc.c | 3 +++
+  1 file changed, 3 insertions(+)

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https://bugs.launchpad.net/bugs/1365378

Title:
  [Regression] realtek pci-e card readers don't recognize mmc cards

Status in HWE Next Project:
  New
Status in “linux” package in Ubuntu:
  In Progress

Bug description:
  It's a regression introduced by a27fbf2f067b0cd ("mmc: add ignorance
  case for CMD13 CRC error") from v3.13, only trusty is affected.

  This commit could fix it:

  From 5027251eced6e34315a52bd841279df957f627bb Mon Sep 17 00:00:00 2001
  From: Micky Ching <micky_ching@xxxxxxxxxxxxxx>
  Date: Thu, 27 Mar 2014 13:35:04 +0800
  Subject: [PATCH] mmc: rtsx: add R1-no-CRC mmc command type handle

  a27fbf2f067b0cd ("mmc: add ignorance case for CMD13 CRC error") produced
  a cmd.flags unhandled in realtek pci host driver. This will make MMC
  card fail to initialize, this patch is used to handle the new cmd.flags
  condition and MMC card can be used.

  Signed-off-by: Micky Ching <micky_ching@xxxxxxxxxxxxxx>
  Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
  Signed-off-by: Chris Ball <chris@xxxxxxxxxx>
  ---
   drivers/mmc/host/rtsx_pci_sdmmc.c | 3 +++
   1 file changed, 3 insertions(+)

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