linux-toradex.git/drivers/ata/sata_rcar.c, branch v4.19-rc4

ata: sata_rcar: exclude setting of PHY registers in Gen3

2018-08-06T17:25:34+00:00

According to documentation, setting of PHY registers is unnecessary with
R-Car Gen3. The registers are not even described. So, don't initialize
them.

Signed-off-by: Masaharu Hayakawa 
[wsa: updated commit message]
Signed-off-by: Wolfram Sang 
Reviewed-by: Sergei Shtylyov 
Signed-off-by: Tejun Heo

ata: sata_rcar: really mask all interrupts on Gen2 and later

2018-08-06T17:25:01+00:00

Since R-Car Gen2, a new bit has been introduced to the interrupt mask
register. Update the code to handle it properly as well.

Signed-off-by: Wolfram Sang 
Reviewed-by: Sergei Shtylyov 
Signed-off-by: Tejun Heo

ata: sata_rcar: Add rudimentary Runtime PM support

2018-07-23T15:18:43+00:00

Replace the explicit clock handling to enable/disable the SATA module by
calls to Runtime PM.

This makes the driver independent of actual SoC clock/power hierarchies,
and is needed to support virtualization, where the guest is not in full
control of power management.

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Sergei Shtylyov 
Signed-off-by: Tejun Heo

ata: sata_rcar: Provide a short-hand for &pdev->dev

2018-07-23T15:18:43+00:00

No functional changes.

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Sergei Shtylyov 
Signed-off-by: Tejun Heo

ata: sata_rcar: Remove unused variable in sata_rcar_init_controller()

2018-02-13T14:39:38+00:00

drivers/ata/sata_rcar.c: In function 'sata_rcar_init_controller':
drivers/ata/sata_rcar.c:821:8: warning: unused variable 'base' [-Wunused-variable]

Fixes: da77d76b95a0e894 ("sata_rcar: Reset SATA PHY when Salvator-X board resumes")
Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Tejun Heo

sata_rcar: Reset SATA PHY when Salvator-X board resumes

2018-02-12T17:22:36+00:00

Because power of Salvator-X board is cut off in suspend,
it needs to reset SATA PHY state in resume.
Otherwise, SATA partition could not be accessed anymore.

Signed-off-by: Khiem Nguyen 
Signed-off-by: Hien Dang 
[reinit phy in sata_rcar_resume() function on R-Car Gen3 only]
[factor out SATA module init sequence]
[fixed the prefix for the subject]
Signed-off-by: Yoshihiro Kaneko 
Signed-off-by: Tejun Heo

ata: sata_rcar: Use of_device_get_match_data() helper

2017-10-04T14:18:29+00:00

Use the of_device_get_match_data() helper instead of open coding.
Note that the sata_rcar driver is used with DT only, so there's always a
valid match.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Sergei Shtylyov 
Signed-off-by: Tejun Heo

ata: sata_rcar: add gen[23] fallback compatibility strings

2017-07-15T11:07:28+00:00

Add fallback compatibility string for R-Car Gen 2 and 3.

In the case of Renesas R-Car hardware we know that there are generations of
SoCs, e.g. Gen 1 and 2. But beyond that its not clear what the relationship
between IP blocks might be. For example, I believe that r8a7790 is older
than r8a7791 but that doesn't imply that the latter is a descendant of the
former or vice versa.

We can, however, by examining the documentation and behaviour of the
hardware at run-time observe that the current driver implementation appears
to be compatible with the IP blocks on SoCs within a given generation.

For the above reasons and convenience when enabling new SoCs a
per-generation fallback compatibility string scheme being adopted for
drivers for Renesas SoCs.

Signed-off-by: Simon Horman 
Acked-by: Sergei Shtylyov 
Reviewed-by: Geert Uytterhoeven 
Acked-by: Rob Herring 
Signed-off-by: Tejun Heo

Merge branch 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata

2017-07-06T16:41:58+00:00

Pull libata updates from Tejun Heo:

 - Christoph added support for TCG OPAL self encrypting disks

 - Minwoo added support for ATA PASS-THROUGH(32)

 - Linus Walleij removed spurious drvdata assignments in some drivers

 - Support for a few new device and other fixes

* 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (33 commits)
  sd: add support for TCG OPAL self encrypting disks
  libata: fix build warning from unused goto label
  libata: Support for an ATA PASS-THROUGH(32) command.
  ahci: Add Device ID for ASMedia 1061R and 1062R
  sata_via: Enable optional hotplug on VT6420
  ata: ahci_brcm: Avoid writing to read-only registers
  libata: Add the AHCI_HFLAG_NO_WRITE_TO_RO flag
  libata: Add the AHCI_HFLAG_YES_ALPM flag
  ata: ftide010: fix resource printing
  libata: make the function name in comment match the actual function
  ata: sata_rcar: make of_device_ids const.
  ata: pata_octeon_cf: make of_device_ids const.
  libata: Convert bare printks to pr_cont
  libahci: wrong comments in ahci_do_softreset()
  ata: declare ata_port_info structures as const
  ata: Add driver for Faraday Technology FTIDE010
  ata: Add DT bindings for the Gemini SATA bridge
  ata: Add DT bindings for Faraday Technology FTIDE010
  libata: implement SECURITY PROTOCOL IN/OUT
  libata: factor out a ata_identify_page_supported helper
  ...

ata: sata_rcar: make of_device_ids const.

2017-06-19T18:03:06+00:00

of_device_ids are not supposed to change at runtime. All functions
working with of_device_ids provided by  work with const
of_device_ids. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   3946	   2296	      0	   6242	   1862	drivers/ata/sata_rcar.o

File size after constify sata_rcar_match.
   text	   data	    bss	    dec	    hex	filename
   5554	    696	      0	   6250	   186a	drivers/ata/sata_rcar.o

Signed-off-by: Arvind Yadav 
Signed-off-by: Tejun Heo