06 Aug, 2018

1 commit

• aa1221b25   fsi: scom: Fix NULL dereference ... Browse Code »

  The chardev conversion forgot to copy the fsi_dev,
  silly mistake, compounded by a testing mistake on
  my side, this specific driver wasn't being tested
  properly.

  Fixes: d8f4587655f9 "fsi: scom: Convert to use the new chardev"
  Signed-off-by: Benjamin Herrenschmidt

  Benjamin Herrenschmidt

  2018-08-06 10:27:04 +0800  

27 Jul, 2018

1 commit

• d8f458765   fsi: scom: Convert to use the new chardev ... Browse Code »

  This converts FSI scom to use the new fsi-core controlled
  chardev allocator and use a real cdev instead of a miscdev.

  Signed-off-by: Benjamin Herrenschmidt

  Benjamin Herrenschmidt

  2018-07-27 07:57:55 +0800  

18 Jun, 2018

5 commits

• 6b293258c   fsi: scom: Major overhaul ... Browse Code »

  This was too hard to split ... this adds a number of features
  to the SCOM user interface:

  - Support for indirect SCOMs

  - read()/write() interface now handle errors and retries

  - New ioctl() "raw" interface for use by debuggers

  Signed-off-by: Benjamin Herrenschmidt
  Reviewed-by: Eddie James
  Reviewed-by: Alistair Popple

  Benjamin Herrenschmidt

  2018-06-18 13:11:53 +0800  
• f14330444   fsi: scom: Add register definitions ... Browse Code »

  Add a few more register and bit definitions, also define and use
  SCOM_READ_CMD (which is 0 but it makes the code clearer)

  Signed-off-by: Benjamin Herrenschmidt
  Reviewed-by: Eddie James

  Benjamin Herrenschmidt

  2018-06-18 12:33:56 +0800  
• 5a3c2f765   fsi: scom: Fixup endian annotations ... Browse Code »

  Use the proper annotated type __be32 and fixup the
  accessor used for get_scom()

  Signed-off-by: Benjamin Herrenschmidt
  Reviewed-by: Eddie James

  Benjamin Herrenschmidt

  2018-06-18 12:33:56 +0800  
• bd2133645   fsi: scom: Whitespace fixes ... Browse Code »

  No functional changes

  Signed-off-by: Benjamin Herrenschmidt
  Reviewed-by: Eddie James

  Benjamin Herrenschmidt

  2018-06-18 12:33:56 +0800  
• 162c39467   fsi: scom: Add mutex around FSI2PIB accesses ... Browse Code »

  Otherwise, multiple clients can open the driver and attempt
  to access the PIB at the same time, thus clobbering each other
  in the process.

  Signed-off-by: Benjamin Herrenschmidt
  Reviewed-by: Eddie James

  Benjamin Herrenschmidt

  2018-06-18 12:33:56 +0800  

12 Jun, 2018

1 commit

• 52b7116e8   fsi: scom: Remove PIB reset during probe ... Browse Code »

  The PIB reset causes problems for the running P9 chip. The reset
  shouldn't be performed by this driver.

  Signed-off-by: Eddie James
  Reviewed-by: Christopher Bostic
  Signed-off-by: Benjamin Herrenschmidt
  Tested-by: Joel Stanley

  Eddie James

  2018-06-12 12:05:34 +0800  

28 Aug, 2017

1 commit

• 47a6623b2   drivers/fsi/scom: Remove reset before every putscom ... Browse Code »

  Reset causes problems for operations requiring multiple scoms (e.g. i2c
  over scom). Instead, reset scom engine during probe.

  Signed-off-by: Edward A. James
  Signed-off-by: Greg Kroah-Hartman

  Edward A. James

  2017-08-28 23:15:16 +0800  

09 Jun, 2017

1 commit

• 680ca6dcf   drivers/fsi: Add SCOM FSI client device driver ... Browse Code »

  Create a simple SCOM engine device driver that reads and writes
  its control registers via an FSI bus.

  Includes changes from Edward A. James .

  Signed-off-by: Christopher Bostic
  Signed-off-by: Joel Stanley
  Signed-off-by: Edward A. James
  Signed-off-by: Jeremy Kerr
  Signed-off-by: Greg Kroah-Hartman

  Christopher Bostic

  2017-06-09 17:52:09 +0800