Public bug reported:

Model: Thinkpad P1 Gen2
Kernel: Linux 5.0.0-1063-oem-osp1 #68-Ubuntu SMP Fri Jun 26 19:44:17 UTC 2020 
x86_64 x86_64 x86_64 GNU/Linux

Issue: Cannot read/write to SDCard using Cardreader slot
Dmesg:
[263519.057410] mmc0: 1.8V regulator output did not became stable
[263519.189674] mmc0: 1.8V regulator output did not became stable
[263519.325012] mmc0: 1.8V regulator output did not became stable
[263519.456901] mmc0: 1.8V regulator output did not became stable
[263519.589446] mmc0: 1.8V regulator output did not became stable
[263519.725398] mmc0: 1.8V regulator output did not became stable
[263519.857313] mmc0: 1.8V regulator output did not became stable
[263519.986551] mmc0: 1.8V regulator output did not became stable
[263520.117047] mmc0: 1.8V regulator output did not became stable
[263520.249578] mmc0: 1.8V regulator output did not became stable
[263520.281817] mmc0: Skipping voltage switch
[263520.392993] mmc0: new high speed SDHC card at address 0001
[263520.393638] mmcblk0: mmc0:0001 BB1QT 29.8 GiB
[263520.395766]  mmcblk0: p1
[263520.402912] mmc0: Got data interrupt 0x00600000 even though no data 
operation was in progress.
[263520.402914] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
... skip...
[263597.713184] sdhci-pci 0000:53:00.0: Card stuck in wrong state! 
card_busy_detect status: 0xd00

Patch:
https://www.reddit.com/r/thinkpad/comments/bwk8xq/t490_sd_card_reader_linux_driver/etzj5ub/

4a9e0d1a6256024582c225ce0d86b51e109062c4
1beabbdba708bc9b6d7fc04695cc98d1287d92f2
4460d68f0b2f9092273531fbc65613e1855c2e07
7353788c6a63ddfd0f0dec10049b0bef3da8d0bd
e51df6ce668a8f75ce27f83ce0f60103c568c375

Please apply the patches to 5.0.0

Thank you

** Affects: linux-signed-oem-osp1 (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  Model: Thinkpad P1 Gen2
- Kernel: Linux sg-r90wwngn 5.0.0-1063-oem-osp1 #68-Ubuntu SMP Fri Jun 26 
19:44:17 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
+ Kernel: Linux 5.0.0-1063-oem-osp1 #68-Ubuntu SMP Fri Jun 26 19:44:17 UTC 2020 
x86_64 x86_64 x86_64 GNU/Linux
  
  Issue: Cannot read/write to SDCard using Cardreader slot
  Dmesg:
  [263519.057410] mmc0: 1.8V regulator output did not became stable
  [263519.189674] mmc0: 1.8V regulator output did not became stable
  [263519.325012] mmc0: 1.8V regulator output did not became stable
  [263519.456901] mmc0: 1.8V regulator output did not became stable
  [263519.589446] mmc0: 1.8V regulator output did not became stable
  [263519.725398] mmc0: 1.8V regulator output did not became stable
  [263519.857313] mmc0: 1.8V regulator output did not became stable
  [263519.986551] mmc0: 1.8V regulator output did not became stable
  [263520.117047] mmc0: 1.8V regulator output did not became stable
  [263520.249578] mmc0: 1.8V regulator output did not became stable
  [263520.281817] mmc0: Skipping voltage switch
  [263520.392993] mmc0: new high speed SDHC card at address 0001
- [263520.393638] mmcblk0: mmc0:0001 BB1QT 29.8 GiB 
+ [263520.393638] mmcblk0: mmc0:0001 BB1QT 29.8 GiB
  [263520.395766]  mmcblk0: p1
  [263520.402912] mmc0: Got data interrupt 0x00600000 even though no data 
operation was in progress.
  [263520.402914] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
  ... skip...
  [263597.713184] sdhci-pci 0000:53:00.0: Card stuck in wrong state! 
card_busy_detect status: 0xd00
  
  Patch:
  
https://www.reddit.com/r/thinkpad/comments/bwk8xq/t490_sd_card_reader_linux_driver/etzj5ub/
  
  4a9e0d1a6256024582c225ce0d86b51e109062c4
  1beabbdba708bc9b6d7fc04695cc98d1287d92f2
  4460d68f0b2f9092273531fbc65613e1855c2e07
  7353788c6a63ddfd0f0dec10049b0bef3da8d0bd
  e51df6ce668a8f75ce27f83ce0f60103c568c375
  
  Please apply the patches to 5.0.0
  
  Thank you

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https://bugs.launchpad.net/bugs/1888602

Title:
  SDCard reader doesn't work

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