David Herrmann [Fri, 8 Aug 2014 21:25:25 +0000 (14:25 -0700)]
mm: allow drivers to prevent new writable mappings
This patch (of 6):
The i_mmap_writable field counts existing writable mappings of an
address_space. To allow drivers to prevent new writable mappings, make
this counter signed and prevent new writable mappings if it is negative.
This is modelled after i_writecount and DENYWRITE.
This will be required by the shmem-sealing infrastructure to prevent any
new writable mappings after the WRITE seal has been set. In case there
exists a writable mapping, this operation will fail with EBUSY.
Note that we rely on the fact that iff you already own a writable mapping,
you can increase the counter without using the helpers. This is the same
that we do for i_writecount.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Ryan Lortie <desrt@desrt.ca>
Cc: Lennart Poettering <lennart@poettering.net>
Cc: Daniel Mack <zonque@gmail.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: If33fdcedbcf202ab177c4e21afc7eec261088a8b
Origin: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=
4bb5f5d9395bc112d93a134d8f5b05611eddc9c0
Backported-by: Maciej Wereski <m.wereski@partner.samsung.com>
Signed-off-by: Maciej Wereski <m.wereski@partner.samsung.com>
Oleg Nesterov [Wed, 11 Sep 2013 21:20:20 +0000 (14:20 -0700)]
mm: mmap_region: kill correct_wcount/inode, use allow_write_access()
correct_wcount and inode in mmap_region() just complicate the code. This
boolean was needed previously, when deny_write_access() was called before
vma_merge(), now we can simply check VM_DENYWRITE and do
allow_write_access() if it is set.
allow_write_access() checks file != NULL, so this is safe even if it was
possible to use VM_DENYWRITE && !file. Just we need to ensure we use the
same file which was deny_write_access()'ed, so the patch also moves "file
= vma->vm_file" down after allow_write_access().
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Colin Cross <ccross@android.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: I05df8842b7c4b7e3e29b35d914f297ce37af1685
Origin: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=
e86867720e617774b560dfbc169b7f3d0d490950
Backported-by: Maciej Wereski <m.wereski@partner.samsung.com>
Signed-off-by: Maciej Wereski <m.wereski@partner.samsung.com>
Simon Horman [Wed, 22 May 2013 05:50:31 +0000 (14:50 +0900)]
sched: add cond_resched_rcu() helper
This is intended for use in loops which read data protected by RCU and may
have a large number of iterations. Such an example is dumping the list of
connections known to IPVS: ip_vs_conn_array() and ip_vs_conn_seq_next().
The benefits are for CONFIG_PREEMPT_RCU=y where we save CPU cycles
by moving rcu_read_lock and rcu_read_unlock out of large loops
but still allowing the current task to be preempted after every
loop iteration for the CONFIG_PREEMPT_RCU=n case.
The call to cond_resched() is not needed when CONFIG_PREEMPT_RCU=y.
Thanks to Paul E. McKenney for explaining this and for the
final version that checks the context with CONFIG_DEBUG_ATOMIC_SLEEP=y
for all possible configurations.
The function can be empty in the CONFIG_PREEMPT_RCU case,
rcu_read_lock and rcu_read_unlock are not needed in this case
because the task can be preempted on indication from scheduler.
Thanks to Peter Zijlstra for catching this and for his help
in trying a solution that changes __might_sleep.
Initial cond_resched_rcu_lock() function suggested by Eric Dumazet.
Tested-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Change-Id: I5f36f86484198f9064725d424c3d91d5fac8e1d4
Origin: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=
f6f3c437d09e2f62533034e67bfb4385191e992c
Backported-by: Maciej Wereski <m.wereski@partner.samsung.com>
Signed-off-by: Maciej Wereski <m.wereski@partner.samsung.com>
Chander Kashyap [Tue, 18 Jun 2013 15:29:34 +0000 (00:29 +0900)]
ARM: EXYNOS: use four additional chipid bits to identify EXYNOS family
Use chipid[27:20] bits to identify the EXYNOS family while setting
up the serial port during the uncompression setup. This uses four
additional bits of chipid to identify the EXYNOS family since this
is required for identifying EXYNOS5420 SoC.
Change-Id: Ic7cc14e68d16ae3da2a7d2177b40e40b0295d9a8
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Hyungwon Hwang [Thu, 11 Dec 2014 07:47:30 +0000 (16:47 +0900)]
ARM: exynos: add support secondary core bootup in big.LITTLE processor.
This patch adds support secondary core bootup in big.LITTLE processor
for platsmp. Just core id cannot be used for identification, because
there is a pair of the cores which have same core id. Cluster id have
to be included for their identification. This patch makes cpu index
using cluster id and core id for the calculation of their register
address and the identification. But there is a problem to use cluster id
for core index creation. That is, cluster id does not start from 0 in
old processors which do not have more than one cluster. For example,
Exynos4412's cluster id for its 4 core is 0xa. So I makes all cluster id
to 0 when they are bigger than 1. Normally big.LITTLE processor does not
use platsmp. But at this moment, just for the minimal functionality of
big.LITTLE, this patch adds support for it. This patch can be reverted
after another CPU management method is adopted.
Change-Id: Ifa2d62545dd4174998f962c9608fd6d9b6034c16
Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Seung-Woo Kim [Fri, 19 Dec 2014 05:49:32 +0000 (14:49 +0900)]
ARM: dts: exynos4: fix wrong compatible string for hdmi
The compatible string with exynos5 causes to get wrong configuration
data with recently updated hdmi driver. So this patch fixes to bind
hdmi with exynos4 family compatible strings.
Change-Id: I0c6cae24ad49197de47ce3ca047bd62bf190f8a4
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Hyungwon Hwang [Fri, 21 Nov 2014 10:25:41 +0000 (19:25 +0900)]
ARM: exynos: add exynos_firmware_init function for early init
This patch adds exynos_firmware_init function for early init.
Change-Id: Ibe8136ea9a08b422945acc7d3a36b3cfc0838602
Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Hyungwon Hwang [Fri, 21 Nov 2014 10:16:48 +0000 (19:16 +0900)]
ARM: exynos: fix UART address selection for DEBUG_LL
The exynos5 SoCs using A15+A7 can boot to A15 or A7. If it boots using
A7, it can't detect right UART physical address only the part number of
CP15. It's possible to solve as checking Cluster ID additionally.
Change-Id: I1a227bf1186a988f7a8429ee3b5251528d0ee32a
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Hyungwon Hwang [Wed, 17 Dec 2014 00:30:20 +0000 (09:30 +0900)]
ARM: exynos: restrain the use of gpio driver for Exynos5420
Now, pinctrl is being used to control gpio of Exynos5420. So this
patch is needed not to try to use gpio driver for Exynos5420, and fail
making meaningless error log in boot process.
Change-Id: I41b2575229e6c3f571800f07e775b5a6a11e456a
Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Arun Kumar K [Sun, 25 May 2014 19:16:11 +0000 (04:16 +0900)]
ARM: EXYNOS: Add 5800 SoC support
Exynos5800 is an octa core SoC which is based on the 5420
platform. This patch adds the basic support for it in the
mach-exynos.
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Chander Kashyap [Tue, 18 Jun 2013 15:29:34 +0000 (00:29 +0900)]
ARM: EXYNOS: Add support for EXYNOS5420 SoC
EXYNOS5420 is new SoC in Samsung's Exynos5 SoC series. Add
initial support for this new SoC.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Arun Kumar K [Thu, 22 May 2014 16:35:32 +0000 (01:35 +0900)]
ARM: dts: add mfc node for exynos5800
Adds the mfc node to exynos5800 which uses MFCv8.
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Arun Kumar K [Sun, 11 May 2014 22:55:41 +0000 (07:55 +0900)]
ARM: dts: add dts file for exynos5800 SoC
Most of the nodes of exynos5420 remains same for exynos5800.
So the exynos5420.dtsi is included in exynos5800 and the changed
node properties will be overriden.
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Arun Kumar K [Thu, 8 May 2014 21:06:10 +0000 (06:06 +0900)]
ARM: dts: Add pwmX_out pinctrl nodes to exynos5420
Adds the PWM nodes to 5420 pinctrl dtsi file.
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Sachin Kamat [Wed, 11 Dec 2013 21:58:37 +0000 (06:58 +0900)]
ARM: dts: Fix a typo in exynos5420-pinctrl.dtsi
Fixed samaung -> samsung in property name.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vikas Sajjan [Wed, 14 Aug 2013 08:15:10 +0000 (17:15 +0900)]
ARM: dts: Add pin state information for DP HPD support to Exynos5420
Add pin state information for DP HPD support that requires pin configuration
support using pinctrl interface.
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Leela Krishna Amudala [Wed, 19 Jun 2013 13:16:06 +0000 (22:16 +0900)]
ARM: dts: add pinctrl support to EXYNOS5420
Add the required pin configuration support to EXYNOS5420
using pinctrl interface.
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Tested-by : Sunil Joshi <joshi@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Stephen Rothwell [Sat, 9 Aug 2014 15:25:50 +0000 (08:25 -0700)]
ARM: dts: exynos5420: remove disp_pd
This was caused by commit
5a8da524049c ("ARM: dts: exynos5420: add dsi
node"), which conflicted with
d51cad7df871 ("ARM: dts: remove display
power domain for exynos5420").
The DTS addition should never have been merged through the DRM tree in
the first place, and it lacked an ack from the platform maintainer
(who would have known that the disp_pd reference got removed).
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Olof Johansson <olof@lixom.net>
YoungJun Cho [Thu, 17 Jul 2014 09:01:29 +0000 (18:01 +0900)]
ARM: dts: exynos5420: add dsi node
This patch adds common part of dsi node.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
YoungJun Cho [Thu, 17 Jul 2014 09:01:28 +0000 (18:01 +0900)]
ARM: dts: exynos5420: add mipi-phy node
This patch adds mipi-phy node for MIPI DSI device.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Tomasz Figa [Tue, 24 Jun 2014 16:08:27 +0000 (18:08 +0200)]
ARM: dts: exynos: Update PMU node with CLKOUT related data
This patch extends nodes of PMU system controller on Exynos4210, 4x12,
5250 and 5420 SoCs with newly defined properties used by Exynos CLKOUT
driver.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Rahul Sharma [Tue, 15 Jul 2014 23:37:00 +0000 (08:37 +0900)]
ARM: dts: remove display power domain for exynos5420
Display domain is removed due to instability issues. Explaining
the problem below:
exynos_init_late triggers the pm_genpd_poweroff_unused which powers
off the unused power domains. This call hits before the trigger to
deferred probes.
DRM DP Panel defers the probe due to supply get failure. By the time,
deferred probe is scheduled again, Display Power Domain is powered
off by pm_genpd_poweroff_unused.
FIMD and DP drivers are accessing registers during Probe and Bind
callbacks. If display domain is enabled/disabled around register
accesses, display domain gets unstable and we are getting Power Domain
Disable fail notification. Increasing the Timeout also didn't help.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Arun Kumar K [Thu, 10 Jul 2014 23:04:03 +0000 (08:04 +0900)]
ARM: dts: Add clock property for mfc_pd in exynos5420
Adding the optional clock property for the mfc_pd for
handling the re-parenting while pd on/off.
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Tushar Behera [Mon, 7 Jul 2014 23:31:41 +0000 (08:31 +0900)]
ARM: dts: Update the parent for Audss clocks in Exynos5420
Currently CLK_FOUT_EPLL was set as one of the parents of AUDSS mux.
As per the user manual, it should be CLK_MAU_EPLL.
The problem surfaced when the bootloader in Peach-pit board set
the EPLL clock as the parent of AUDSS mux. While booting the kernel,
we used to get a system hang during late boot if CLK_MAU_EPLL was
disabled.
Signed-off-by: Tushar Behera <tushar.b@samsung.com>
Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Reported-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Rahul Sharma [Thu, 22 May 2014 17:45:45 +0000 (02:45 +0900)]
ARM: dts: add pmu syscon handle to exynos5420 hdmi
Add PMU syscon handle to HDMI dt node for controlling
PHY Enable/Disable bit.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Beomho Seo [Thu, 22 May 2014 17:38:48 +0000 (02:38 +0900)]
ARM: dts: replace number by macro in clock binding for exynos5420
sss module device node missed clock macro.
This patch replace magic number with macro in clock
binding for exynos5420.
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Reviewed-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vivek Gautam [Wed, 21 May 2014 22:51:59 +0000 (07:51 +0900)]
ARM: dts: Add USB 2.0 support on exynos5420
Add required device node for ehci and ohci controllers to
enable USB 2.0 support.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Vikas Sajjan <vikas.sajjan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vivek Gautam [Wed, 21 May 2014 22:50:52 +0000 (07:50 +0900)]
ARM: dts: Add usb2phy support on exynos5420
Add required device node for usb2phy to let enable USB 2.0
support.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Vikas Sajjan <vikas.sajjan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vivek Gautam [Wed, 21 May 2014 22:49:13 +0000 (07:49 +0900)]
ARM: dts: Add sysreg sytem controller node to exynos5250 and exynos5420
This patch adds sysreg-syscon node to exynos5250 and exynos5420 device
tree, to access System Register's registers using syscon driver.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
[gautam.vivek@samsung.com: Split this syreg-syscon dts entry]
[gautam.vivek@samsung.com: added similar syscon entry for exynos5420]
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
[vikas.sajjan@samsung.com: updated the binding document]
Signed-off-by: Vikas Sajjan <vikas.sajjan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Sachin Kamat [Mon, 19 May 2014 16:14:03 +0000 (01:14 +0900)]
ARM: dts: Fix SPI interrupt numbers for exynos5420
Updated as per the user manual.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Sachin Kamat [Fri, 16 May 2014 22:57:10 +0000 (07:57 +0900)]
ARM: dts: Add PD entry to MFC codec on exynos5420
PD entry was missing in MFC codec node.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by : Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vivek Gautam [Thu, 15 May 2014 21:38:01 +0000 (06:38 +0900)]
ARM: dts: Enable support for DWC3 controller for exynos5420
Add device tree nodes for DWC3 controller present on
Exynos 5420 SoC, to enable support for USB 3.0.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vivek Gautam [Thu, 15 May 2014 21:37:03 +0000 (06:37 +0900)]
ARM: dts: Enable support for USB 3.0 PHY controller for exynos5420
Add device tree nodes for USB 3.0 PHY present alongwith
USB 3.0 controller Exynos 5420 SoC. This phy driver is
based on generic phy framework.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Rahul Sharma [Thu, 15 May 2014 20:23:21 +0000 (05:23 +0900)]
ARM: dts: enable hdmi for exynos5420-peach-pit board
Enable hdmi for exynos5420 based peach-pit board.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Rahul Sharma [Thu, 15 May 2014 20:23:16 +0000 (05:23 +0900)]
ARM: dts: change to correct compatible string for exynos5420 hdmi
Replace compatible string for HDMI node in Exynos5420. Since
latest restructring in Drm hdmi driver, it is agreed to use
a seperate compatible string for Exynos5420 HDMI IP siince it
uses APB mapped Phy.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Andrew Bresticker [Thu, 15 May 2014 19:23:26 +0000 (04:23 +0900)]
ARM: dts: add CCI node for exynos5420
Add device-tree bindings for the ARM CCI-400 on Exynos5420. There
are two slave interfaces: one for the A15 cluster and one for the
A7 cluster.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Arun Kumar K [Wed, 14 May 2014 19:17:17 +0000 (04:17 +0900)]
ARM: dts: Remove g2d_pd node for exynos5420
G2D power domain also controls the CMU block of G2D. Since
clock registers can be accessed anytime for viewing
clk_summary, it can cause a system crash if g2d power domain
is disabled.
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Tushar Behera [Wed, 14 May 2014 19:16:03 +0000 (04:16 +0900)]
ARM: dts: Remove mau_pd node for exynos5420
MAU powerdomain provides clocks for Audio sub-system block.
This block comprises of the I2S audio controller, audio DMA
blocks and Audio sub-system clock registers.
Right now, there is no way to hook up power-domains with
clock providers. During late boot when this power-domain
gets disabled, we get following external abort.
Unhandled fault: imprecise external abort (0x1406) at 0x00000000
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Seungwon Jeon [Thu, 8 May 2014 22:02:33 +0000 (07:02 +0900)]
ARM: dts: disable MDMA1 node for exynos5420
This change places MDMA1 in disabled node for Exynos5420.
If MDMA1 region is configured with secure mode, it makes
the boot failure with the following on smdk5420 board.
("Unhandled fault: imprecise external abort (0x1406) at 0x00000000")
Thus, arndale-octa board don't need to do the same thing anymore.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Sachin Kamat [Mon, 12 May 2014 22:13:44 +0000 (07:13 +0900)]
ARM: EXYNOS: Map SYSRAM through generic DT bindings
Instead of hardcoding the SYSRAM details for each SoC,
pass this information through device tree (DT) and make
the code SoC agnostic. Generic DT SRAM bindings are
used for achieving this.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Shaik Ameer Basha [Thu, 8 May 2014 11:27:56 +0000 (16:57 +0530)]
clk: samsung: exynos5420: update clocks for PERIC block
This patch includes,
1] renaming of the HSI2C clocks
2] renaming of spi clocks according to the datasheet
3] fixes for child-parent relationships
4] adding of more clocks related to PERIC block
5] use GATE_IP_* offsets instead of GATE_BUS_*
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Arun Kumar K [Thu, 8 May 2014 21:06:24 +0000 (06:06 +0900)]
ARM: dts: Add node labels to exynos5420
Adding labels to nodes which do not have it yet in exynos5420.
This is done so as to use reference based node updation in board
files.
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Tushar Behera [Thu, 20 Mar 2014 19:31:30 +0000 (04:31 +0900)]
dt-bindings: clock: Move exynos-audss-clk.h to dt-bindings/clock
Most of the clock related dt-binding header files are located in
dt-bindings/clock folder. It would be good to keep all the similar
header files at a single location.
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Reviewed-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Sachin Kamat [Thu, 20 Mar 2014 17:17:22 +0000 (02:17 +0900)]
ARM: dts: Update Exynos DT files with generic compatible strings
Add generic compatible strings to the respective board DT files.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Naveen Krishna Chatradhi [Mon, 17 Mar 2014 22:38:04 +0000 (07:38 +0900)]
ARM: dts: add dt node for sss module for exynos5250/5420
This patch adds the device tree node for SSS module
found on Exynos5420 and Exynos5250
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Andrzej Hajda [Wed, 26 Feb 2014 00:53:30 +0000 (09:53 +0900)]
ARM: dts: use macros in clock bindings for exynos5420
The patch replaces magic numbers with macros defined in DT header
in exynos5420 clock bindings.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Sachin Kamat [Sun, 23 Feb 2014 23:47:28 +0000 (08:47 +0900)]
ARM: dts: Add I2S nodes to exynos5420
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Sachin Kamat [Sun, 23 Feb 2014 23:47:28 +0000 (08:47 +0900)]
ARM: dts: Add ADMA node to exynos5420
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Sachin Kamat [Sun, 23 Feb 2014 23:47:28 +0000 (08:47 +0900)]
ARM: dts: Re-organize RTC status for exynos5420
Some boards might not have RTC xtal, so RTC shouldn't really be
enabled by default. Enable it in the required board files.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Leela Krishna Amudala [Sat, 15 Feb 2014 16:58:29 +0000 (01:58 +0900)]
ARM: dts: update watchdog device nodes for exynos5250 and exynos5420
In EXYNOS5 series SoCs, PMU has registers to enable/disable mask/unmask
watchdog timer which is not the case with s3c series SoCs so, there is a
need to have different compatible names for watchdog to handle these pmu
registers access.
Hence this patch removes watchdog node from Exynos5.dtsi common file and
make it separate by updating existing node in Exynos5250 and adding new node
to Exynos5420. This patch also makes the watchdog node enabled by default
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Leela Krishna Amudala [Sat, 15 Feb 2014 16:57:56 +0000 (01:57 +0900)]
ARM: dts: Add pmu sysreg node to exynos5250 and exynos5420
This patch adds pmusysreg node to exynos5250 and exynos5420 dtsi files to
handle PMU register accesses in a centralized way using syscon driver
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Andrew Bresticker [Wed, 25 Sep 2013 21:12:52 +0000 (14:12 -0700)]
ARM: dts: exynos5420: add input clocks to audss clock controller
Specify the remaining input clocks (pll_ref, pll_in, and sclk_pcm_in)
for the AudioSS clock controller.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Naveen Krishna Chatradhi [Fri, 20 Dec 2013 20:59:49 +0000 (05:59 +0900)]
ARM: dts: Add device nodes for TMU blocks for exynos5420
Exynos5420 SoC has per core thermal management unit.
5 TMU channels 4 for CPUs and 5th for GPU.
This patch adds the device tree nodes to the DT device list.
Nodes carry the misplaced second base address and the second
clock to access the misplaced base address.
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Leela Krishna Amudala [Wed, 18 Dec 2013 17:41:02 +0000 (02:41 +0900)]
ARM: dts: add pwm DT nodes to Exynos5250 and Exynos5420
Add the device-tree binding for the PWM controller to Exynos5250 and Exynos5420
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Olof Johansson <olofj@chromium.org>
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Leela Krishna Amudala [Wed, 18 Dec 2013 17:36:37 +0000 (02:36 +0900)]
ARM: dts: Add SPI nodes to the exynos5420 device tree file
Add SPI device tree nodes to Exynos5420 SoC
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Padmavathi Venna [Wed, 18 Dec 2013 17:32:41 +0000 (02:32 +0900)]
ARM: dts: Add DMA controller node info on Exynos5420
This patch adds dma controller node info on Exynos5420.
Exynos5420 has adma for audio IPs. As adma clk is dependent
on audss clk provider that will be added later.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Sachin Kamat [Wed, 11 Dec 2013 22:01:11 +0000 (07:01 +0900)]
ARM: dts: Add hs-i2c nodes to exynos5420
Added high speed I2C nodes to Exynos5420 DT file.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Chander Kashyap [Sun, 1 Dec 2013 22:49:59 +0000 (07:49 +0900)]
ARM: dts: populate cpu node entries to 8 cpus for exynos5420
Exynos5420 is octa-core SoC from Samsung.
Hence populate all the CPU node entries.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Chander Kashyap [Sun, 1 Dec 2013 22:48:23 +0000 (07:48 +0900)]
clocksource: mct: extend mct to support 8 local interrupts for Exynos5420
Exynos5420 is octa-core SoC from Samsung. Hence extend exynos-mct clocksource
driver to support 8 local interrupts.
Also extend dts entries for 8 interrupts.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Leela Krishna Amudala [Sun, 20 Oct 2013 20:59:06 +0000 (05:59 +0900)]
ARM: dts: Add device nodes for GScaler blocks for exynos5420
Adds G-Scaler device nodes to the DT device list
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Yuvaraj Kumar C D [Sun, 20 Oct 2013 20:57:00 +0000 (05:57 +0900)]
ARM: dts: Add dwmmc DT nodes for exynos5420 SOC
This patch adds the mmc device tree node entries for exynos5420 SOC.
Exynos5420 has a different version of DWMMC controller,so a new
compatible string is used to distinguish it from the prior SOC's.
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Rahul Sharma [Mon, 7 Oct 2013 21:49:46 +0000 (06:49 +0900)]
ARM: dts: add dt nodes for hdmi subsystem for exynos5420
Add hdmi and mixer device tree nodes for Exynos 5420 SoC.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Andrew Bresticker [Mon, 7 Oct 2013 21:49:46 +0000 (06:49 +0900)]
ARM: dts: add i2c device nodes for Exynos5420
This adds device-tree nodes for the i2c busses on Exynos
5420 platforms.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Naveen Krishna Chatradhi [Sun, 25 Aug 2013 17:44:30 +0000 (02:44 +0900)]
ARM: dts: add ADC device tree node for exynos5420/5250
Add ADC device tree node for exynos5420 and exynos5250
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vikas Sajjan [Sun, 25 Aug 2013 17:28:05 +0000 (02:28 +0900)]
ARM: dts: Add RTC DT node to Exynos5420 SoC
Adds RTC DT node to Exynos5420 SoC
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Andrew Bresticker [Sun, 18 Aug 2013 19:58:38 +0000 (04:58 +0900)]
ARM: dts: add audio clock controller for exynos5420
This adds device-tree bindings for the audio subsystem clock controller
on Exynos 5420.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/57712
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Padmavathi Venna [Sun, 18 Aug 2013 19:56:33 +0000 (04:56 +0900)]
ARM: dts: Correct the /include entry on exynos5420 dtsi file
This patch corrects the /include to #include on exynos5420
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Arun Kumar K [Sun, 18 Aug 2013 19:43:01 +0000 (04:43 +0900)]
ARM: dts: Add MFC node for exynos 5420
The patch adds MFC nodes for exynos 5420.
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vikas Sajjan [Wed, 14 Aug 2013 08:15:06 +0000 (17:15 +0900)]
ARM: dts: Add DP controller DT node to exynos5420 SoC
Adds DP controller DT node to exynos5420 SoC
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vikas Sajjan [Wed, 14 Aug 2013 08:08:33 +0000 (17:08 +0900)]
ARM: dts: Add FIMD DT node to exynos5420 DTS files
Adds FIMD DT node to exynos5420 based SMDK. Also adds display-timimg
information node.
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Yadwinder Singh Brar [Wed, 14 Aug 2013 08:08:32 +0000 (17:08 +0900)]
ARM: dts: Add basic PM domains for EXYNOS5420
Add DT nodes for gsc, isp, mfc, disp, mau, g2d and msc PM domains.
Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Lee Jones [Mon, 5 Aug 2013 18:04:59 +0000 (03:04 +0900)]
ARM: dts: Remove '0x's from Exynos5420 DTS file
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Leela Krishna Amudala [Wed, 19 Jun 2013 13:16:06 +0000 (22:16 +0900)]
ARM: dts: add pinctrl support to EXYNOS5420
Add the required pin configuration support to EXYNOS5420
using pinctrl interface.
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Tested-by : Sunil Joshi <joshi@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Chander Kashyap [Tue, 18 Jun 2013 15:29:35 +0000 (00:29 +0900)]
ARM: dts: Add initial device tree support for EXYNOS5420
Add initial device tree nodes for EXYNOS5420 SoC and SMDK5420 board.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
YoungJun Cho [Thu, 17 Jul 2014 09:01:27 +0000 (18:01 +0900)]
ARM: dts: exynos5: add system register property
This patch adds sysreg property to fimd device node
which is required to use I80 interface.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Tomasz Figa [Thu, 26 Jun 2014 11:24:35 +0000 (13:24 +0200)]
ARM: dts: SAMSUNG: Add aliases of UART nodes
This patch adds alias entries for UART nodes of all SoCs using
samsung-uart compatible UART controllers, so that the dependency on
probe order is removed and deterministic device naming is assured.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Leela Krishna Amudala [Sat, 15 Feb 2014 16:58:29 +0000 (01:58 +0900)]
ARM: dts: update watchdog device nodes for exynos5250 and exynos5420
In EXYNOS5 series SoCs, PMU has registers to enable/disable mask/unmask
watchdog timer which is not the case with s3c series SoCs so, there is a
need to have different compatible names for watchdog to handle these pmu
registers access.
Hence this patch removes watchdog node from Exynos5.dtsi common file and
make it separate by updating existing node in Exynos5250 and adding new node
to Exynos5420. This patch also makes the watchdog node enabled by default
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Tomasz Figa [Wed, 18 Dec 2013 18:17:54 +0000 (03:17 +0900)]
ARM: dts: Fix missing spaces after labels for exynos
For consistency with other device tree nodes, this patch adds missing
spaces after node labels.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Yuvaraj Kumar C D [Sun, 20 Oct 2013 20:47:14 +0000 (05:47 +0900)]
ARM: dts: Move dwmmc nodes from exynos5.dtsi to exynos5250.dtsi
Exynos5 series SOC's 5250 and 5420 have different versions of
DWMMC controller.So there is a new compatible string to distinguish
between them.So these nodes should be moved out of Exynos5 series
common device tree source to SOC specific device tree source.
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vikas Sajjan [Sun, 25 Aug 2013 17:28:05 +0000 (02:28 +0900)]
ARM: dts: Fix the RTC DT node name for Exynos5250
Fixes the RTC DT node name for Exynos5250 as per the DT node naming
convention.
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vikas Sajjan [Wed, 14 Aug 2013 08:15:00 +0000 (17:15 +0900)]
ARM: dts: Update DP controller DT Node for Exynos5 based SoCs
Moves the properties of DP controller to exynos5.dtsi which are common
across exynos5 SoCs like Exynos5250 and Exynos5420.
The PHY DP Node is based on Jingoo Han's <jg1.han@samsung.com> patch
at https://patchwork.linuxtv.org/patch/19189/
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Vikas Sajjan [Wed, 14 Aug 2013 08:08:32 +0000 (17:08 +0900)]
ARM: dts: Update FIMD DT node for Exynos5 SoCs
Moves the properties of FIMD DT node which are common across Exynos5 based
SoCs like Exynos5250 and Exynos5420 to exynos5.dtsi
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Chander Kashyap [Tue, 18 Jun 2013 15:29:34 +0000 (00:29 +0900)]
ARM: dts: fork out common EXYNOS5 nodes
In preparation of adding support for EXYNOS5420, which has many
peripherals similar to EXYNOS5250, a new common EXYNOS5 device tree
source file is created out of the exising EXYNOS5250 device tree
source file. Only the common nodes required for basic boot up on
EXYNOS5420 based boards are moved into this new file and the rest
of the common nodes would be moved subsequently.
EXYNOS5440 SoC is quite different from EXYNOS5250 and EXYNOS5420.
Hence it is not possible to reuse "exynos5.dtsi" for EXYNOS5440.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Rahul Sharma [Wed, 19 Jun 2013 12:51:08 +0000 (18:21 +0530)]
drm/exynos: add support for exynos5420 mixer
Add support for exynos5420 mixer IP in the drm mixer driver.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Rahul Sharma [Sun, 20 Apr 2014 10:21:17 +0000 (15:51 +0530)]
drm/exynos: enable support for exynos5420 hdmi device
Enable support for hdmi for exynos5420 hdmiphy. Add
compatible string in the of_match table. Also added
hdmiphy configuration values for exynos5420.
Signed-off-by: Rahul Sharma <Rahul.Sharma@samsung.com>
Signed-off-by: Shirish S <s.shirish@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Naveen Krishna Ch [Thu, 26 Jun 2014 05:14:58 +0000 (10:44 +0530)]
i2c: exynos5: remove extra line and fix an assignment
This patch does the following in exynos5_i2c_message_start() function
1. Fixes an assignment
As, "i2c_auto_conf" is initialized to '0' at the beginning of the
function and HSI2C_READ_WRITE is defined as (1u << 16)
Using "|=" for the first assignment is more readable.
2. Removes an extra line
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Naveen Krishna Ch [Thu, 26 Jun 2014 05:14:57 +0000 (10:44 +0530)]
i2c: exynos5: remove an unnecessary read of FIFO_STATUS register
This patch removes an extra read of FIFO_STATUS register in the interrrupt
service routine. Which is read again before the actual use.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Doug Anderson [Wed, 25 Jun 2014 16:39:20 +0000 (09:39 -0700)]
i2c: exynos5: Properly use the "noirq" variants of suspend/resume
The original code for the exynos i2c controller registered for the
"noirq" variants. However during review feedback it was moved to
SIMPLE_DEV_PM_OPS without anyone noticing that it meant we were no
longer actually "noirq" (despite functions named
exynos5_i2c_suspend_noirq and exynos5_i2c_resume_noirq).
i2c controllers that might have wakeup sources on them seem to need to
resume at noirq time so that the individual drivers can actually read
the i2c bus to handle their wakeup.
NOTE: I took the original review feedback from Wolfram and added
poweroff, thaw, freeze, restore.
This patch has only been compile-tested since I don't have all the
patches needed to make my machine using this i2c driver actually
suspend/resume.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Jingoo Han [Tue, 13 May 2014 01:51:58 +0000 (10:51 +0900)]
i2c: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message. For example,
k.alloc and v.alloc failures use dump_stack().
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Naveen Krishna Ch [Mon, 28 Apr 2014 08:59:58 +0000 (14:29 +0530)]
i2c: exynos5: add support for HSI2C on Exynos5260 SoC
HSI2C module on Exynos5260 differs from current modules in
following ways:
1. HSI2C on Exynos5260 has fifo_depth of 16bytes
2. Module needs to be reset as a part of init sequence.
Hence, Following changes are involved.
1. Add a new compatible string and Updates the Documentation dt bindings.
2. Introduce a variant struct to support the changes in H/W
3. Reset the module during init. Thus, bringing the module back
to default state irrespective of what firmware did with it.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Jingoo Han [Tue, 11 Mar 2014 01:22:59 +0000 (10:22 +0900)]
i2c: exynos5: remove unnecessary cast of void pointer
Remove unnecessary cast of void pointer, because 'algo_data' of
'struct i2c_adapter' is a void pointer. Casting the void pointer
is redundant. The conversion from void pointer to any other
pointer type is guaranteed by the C programming language.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Jingoo Han [Tue, 11 Mar 2014 01:21:57 +0000 (10:21 +0900)]
i2c: exynos5: add CONFIG_PM_SLEEP to suspend/resume functions
Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following
build warning when CONFIG_PM_SLEEP is not selected. This is because
sleep PM callbacks defined by SIMPLE_DEV_PM_OPS are only used when
the CONFIG_PM_SLEEP is enabled.
warning: 'exynos5_i2c_suspend_noirq' defined but not used [-Wunused-function]
warning: 'exynos5_i2c_resume_noirq' defined but not used [-Wunused-function]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Paul Gortmaker [Tue, 21 Jan 2014 21:22:54 +0000 (16:22 -0500)]
i2c: delete non-required instances of include <linux/init.h>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>. Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Masanari Iida [Sun, 8 Dec 2013 15:22:53 +0000 (00:22 +0900)]
treewide: Fix typos in printk
Correct spelling typo in various part of kernel
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Sachin Kamat [Wed, 6 Nov 2013 09:39:18 +0000 (15:09 +0530)]
i2c: exynos5: Remove incorrect clk_disable_unprepare
clk_disable_unprepare in remove causes an imbalance and hence gives
the below crash on module remove. While at it also remove some
duplicate code from probe.
/ $ rmmod i2c-exynos5
[ 6.996374] ------------[ cut here ]------------
[ 6.999523] WARNING: CPU: 2 PID: 1137 at drivers/clk/clk.c:842 clk_disable+0x18/0x24()
[ 7.007403] Modules linked in: i2c_exynos5(-)
[ 7.011747] CPU: 2 PID: 1137 Comm: rmmod Not tainted 3.12.0-next-
20131105-00083-g16f4799-dirty #21
[ 7.020696] [<
c0014e0c>] (unwind_backtrace+0x0/0xf4) from [<
c0011784>] (show_stack+0x10/0x14)
[ 7.029190] [<
c0011784>] (show_stack+0x10/0x14) from [<
c037acd4>] (dump_stack+0x7c/0xb0)
[ 7.037255] [<
c037acd4>] (dump_stack+0x7c/0xb0) from [<
c001e0ac>] (warn_slowpath_common+0x6c/0x88)
[ 7.046190] [<
c001e0ac>] (warn_slowpath_common+0x6c/0x88) from [<
c001e164>] (warn_slowpath_null+0x1c/0x24)
[ 7.055818] [<
c001e164>] (warn_slowpath_null+0x1c/0x24) from [<
c02dcde4>] (clk_disable+0x18/0x24)
[ 7.064670] [<
c02dcde4>] (clk_disable+0x18/0x24) from [<
bf0002d4>] (exynos5_i2c_remove+0x1c/0x34 [i2c_exynos5])
[ 7.074736] [<
bf0002d4>] (exynos5_i2c_remove+0x1c/0x34 [i2c_exynos5]) from [<
c02274a8>] (__device_release_driver+0x58/0xb0)
[ 7.085836] [<
c02274a8>] (__device_release_driver+0x58/0xb0) from [<
c0227b88>] (driver_detach+0xac/0xb0)
[ 7.095291] [<
c0227b88>] (driver_detach+0xac/0xb0) from [<
c02271c0>] (bus_remove_driver+0x4c/0xa0)
[ 7.104227] [<
c02271c0>] (bus_remove_driver+0x4c/0xa0) from [<
c00725dc>] (SyS_delete_module+0x124/0x194)
[ 7.113682] [<
c00725dc>] (SyS_delete_module+0x124/0x194) from [<
c000e2e0>] (ret_fast_syscall+0x0/0x30)
[ 7.122957] ---[ end trace
23bb6e4e0bf52196 ]---
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Naveen Krishna Ch [Wed, 16 Oct 2013 05:30:42 +0000 (11:00 +0530)]
i2c: exynos5: add High Speed I2C controller driver
Adds support for High Speed I2C driver found in Exynos5 and
later SoCs from Samsung.
Driver only supports Device Tree method.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Taekgyun Ko <taeggyun.ko@samsung.com>
Reviewed-by: Simon Glass <sjg@google.com>
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Signed-off-by: Andrew Bresticker <abrestic@google.com>
[wsa: rebased to v3.12-rc4 (no of_i2c.h anymore)]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Rahul Sharma [Fri, 9 May 2014 06:34:18 +0000 (15:34 +0900)]
drm/exynos: add support for apb mapped phys in hdmi driver
Previous SoCs have hdmi phys which are accessible through
dedicated i2c lines. Newer SoCs have Apb mapped hdmi phys.
Hdmi driver is modified to support apb mapped phys.
Signed-off-by: Rahul Sharma <Rahul.Sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Wolfram Sang [Thu, 14 Nov 2013 22:32:01 +0000 (14:32 -0800)]
sched: replace INIT_COMPLETION with reinit_completion
For the casual device driver writer, it is hard to remember when to use
init_completion (to init a completion structure) or INIT_COMPLETION (to
*reinit* a completion structure). Furthermore, while all other
completion functions exepct a pointer as a parameter, INIT_COMPLETION
does not. To make it easier to remember which function to use and to
make code more readable, introduce a new inline function with the proper
name and consistent argument type. Update the kernel-doc for
init_completion while we are here.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tomasz Figa [Tue, 15 Jul 2014 17:59:18 +0000 (02:59 +0900)]
ARM: EXYNOS: Fix core ID used by platsmp and hotplug code
When CPU topology is specified in device tree, cpu_logical_map() does
not return core ID anymore, but rather full MPIDR value. This breaks
existing calculation of PMU register offsets on Exynos SoCs.
This patch fixes the problem by adjusting the code to use only core ID
bits of the value returned by cpu_logical_map() to allow CPU topology to
be specified in device tree on Exynos SoCs.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Leela Krishna Amudala [Thu, 15 May 2014 19:23:24 +0000 (04:23 +0900)]
ARM: EXYNOS: Add generic cpu power control functions for exynos SoCs
Add generic cpu power control functions for exynos based
SoCS for cpu power up/down and to know the cpu status.
Signed-off-by: Leela Krishna Amudala <leela.krishna@linaro.org>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>