linux-toradex.git/drivers/soc/samsung, branch v4.12-rc1

soc: samsung: Do not build ARMv7 PMU drivers on ARMv8

2017-03-21T17:03:39+00:00

The Exynos Power Management Unit (PMU) drivers contain quite large
static arrays of register values necessary for given Exynos SoC to enter
low power mode.  All this data is useless for ARMv8 SoC like
Exynos5433, because the image will not be shared between ARMv7 and
ARMv8.

Add additional Kconfig symbol for selecting the SoC-specific driver
addons thus skipping the useless data in the final image (this is
similar approach to chosen for Exynos clock controller drivers):
 - exynos-pmu driver will be compiled on both architectures ARMv7
   and ARMv8,
 - additional driver_data for ARMv7 SoCs will not be built on ARMv8
   and a macro will return NULL for them in of_device_id - this should
   be safe as these compatibles cannot match on ARMv7 and driver
   anyway handles NULL driver_data,
 - on ARMv8 compile only exynos-pmu driver which exposes the
   syscon-regmap for PMU address space.

Signed-off-by: Krzysztof Kozlowski 
Reviewed-by: Bartlomiej Zolnierkiewicz 
Reviewed-by: Alim Akhtar

Merge tag 'samsung-drivers-soc-pm-domains-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers

2017-02-07T16:20:07+00:00

Pull "soc: samsung: pm_domains for v4.11" from Krzysztof Kozłowski:

Improve the PM domains driver for Exynos by displaying a user-friendly name of
power domain.  Till now, the name of node from DT was used which mostly is just
"power-domain".  We need more than that.

* tag 'samsung-drivers-soc-pm-domains-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  soc: samsung: pm_domains: Read domain name from the new label property
  soc: samsung: pm_domains: Remove message about failed memory allocation
  soc: samsung: pm_domains: Remove unused name field
  soc: samsung: pm_domains: Use full names in subdomains registration log

soc: samsung: pm_domains: Read domain name from the new label property

2017-01-31T19:30:07+00:00

Device tree nodes for each power domain should use generic "power-domain"
name, so using it as a domain name doesn't give much benefits. This patch
adds support for human readable names defined in 'label' property. Such
names are visible to userspace and makes debugging much easier. When no
'label' property is found, driver keeps using the name constructed from
full node name.

Suggested-by: Krzysztof Kozlowski 
Signed-off-by: Marek Szyprowski 
Signed-off-by: Krzysztof Kozlowski

soc: samsung: pm_domains: Remove message about failed memory allocation

2017-01-31T19:30:06+00:00

Memory subsystem already prints message about failed memory
allocation, there is no need to do it in the drivers.

Signed-off-by: Marek Szyprowski 
Signed-off-by: Krzysztof Kozlowski

soc: samsung: pm_domains: Remove unused name field

2017-01-31T19:30:04+00:00

Name is now in generic pm domain structure, so there is no need to
duplicate it in private data.

Signed-off-by: Marek Szyprowski 
Signed-off-by: Krzysztof Kozlowski

soc: samsung: pm_domains: Use full names in subdomains registration log

2017-01-31T19:30:02+00:00

Device tree none name for each power domain should be "power-domain", so
use a bit more descriptive full node name in messages about subdomain
registration. This way the following meaningless message:

power-domain has as child subdomain: power-domain.

is changed to a bit more meaningful one:

/soc/power-domain@105c40a0 has as child subdomain: /soc/power-domain@105c4020.

Signed-off-by: Marek Szyprowski 
Signed-off-by: Krzysztof Kozlowski

soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION register

2017-01-27T09:32:31+00:00

The register ARM_L2_OPTION (0x2608 in Exynos4 and Exynos5 PMU) was
defined twice.  Both names were used in the Exynos542x code.  Simplify
this.

Signed-off-by: Krzysztof Kozlowski

soc: samsung: pm_domains: Add new Exynos5433 compatible

2017-01-27T07:38:54+00:00

Add a new compatible string for Exynos5433 because it uses the 0xf
value instead of 0x7 for domain on/off registers.

Signed-off-by: Jonghwa Lee 
Signed-off-by: Chanwoo Choi 
Signed-off-by: Marek Szyprowski 
Signed-off-by: Krzysztof Kozlowski

soc: samsung: pmu: Add dummy support for Exynos5433 SoC

2017-01-26T19:50:56+00:00

Add compatible for Exynos5433 SoC, so the driver will bind and let other
drivers to use PMU regmap.

Signed-off-by: Marek Szyprowski 
Signed-off-by: Krzysztof Kozlowski

soc: samsung: pmu: Remove messages for failed memory allocation

2017-01-20T16:37:27+00:00

Memory subsystem already prints message about failed memory
allocation, there is no need to do it in the driver.

Signed-off-by: Marek Szyprowski 
Reviewed-by: Tomasz Figa 
Signed-off-by: Krzysztof Kozlowski