linux-toradex.git/arch/arm, branch v4.5-rc4 Linux kernel for Apalis and Colibri modules Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2016-02-14T18:46:47+00:00 Linus Torvalds torvalds@linux-foundation.org 2016-02-14T18:46:47+00:00 be3f4e0fb3e1ba33c94c43c7cdab9e5165d508b4 Pull ARM fixes from Russell King: "A couple of ARM fixes from Linus for the ICST clock generator code" [ "Linus" here is Linus Walleij. Name-stealer. Linus "there can be only one" Torvalds ] * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 8519/1: ICST: try other dividends than 1 ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz() 
Pull ARM fixes from Russell King:
 "A couple of ARM fixes from Linus for the ICST clock generator code"

[ "Linus" here is Linus Walleij.  Name-stealer.

       Linus "there can be only one" Torvalds ]

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8519/1: ICST: try other dividends than 1
  ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz()
Merge tag 'fbdev-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux 2016-02-12T17:39:34+00:00 Linus Torvalds torvalds@linux-foundation.org 2016-02-12T17:39:34+00:00 14379cdc763dee2b92276ee15e9c1644df1f017a Pull fbdev fixes from Tomi Valkeinen: - fix omap2plus_defconfig to enable omapfb as it was in v4.4 - ocfb: fix timings for margins - s6e8ax0, da8xx-fb: fix compile warnings - mmp: fix build failure caused by bad printk parameters - imxfb: fix clock issue which kept the display off * tag 'fbdev-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: video: fbdev: imxfb: Provide a reset mechanism fbdev: mmp: print IRQ resource using %pR format string fbdev: da8xx-fb: remove incorrect type cast fbdev: s6e8ax0: avoid unused function warnings ocfb: fix tgdel and tvdel timing parameters ARM: omap2plus_defconfig: update display configs 
Pull fbdev fixes from Tomi Valkeinen:
 - fix omap2plus_defconfig to enable omapfb as it was in v4.4
 - ocfb: fix timings for margins
 - s6e8ax0, da8xx-fb: fix compile warnings
 - mmp: fix build failure caused by bad printk parameters
 - imxfb: fix clock issue which kept the display off

* tag 'fbdev-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  video: fbdev: imxfb: Provide a reset mechanism
  fbdev: mmp: print IRQ resource using %pR format string
  fbdev: da8xx-fb: remove incorrect type cast
  fbdev: s6e8ax0: avoid unused function warnings
  ocfb: fix tgdel and tvdel timing parameters
  ARM: omap2plus_defconfig: update display configs
ARM: 8519/1: ICST: try other dividends than 1 2016-02-11T14:12:33+00:00 Linus Walleij linus.walleij@linaro.org 2016-02-10T08:25:17+00:00 e972c37459c813190461dabfeaac228e00aae259 Since the dawn of time the ICST code has only supported divide by one or hang in an eternal loop. Luckily we were always dividing by one because the reference frequency for the systems using the ICSTs is 24MHz and the [min,max] values for the PLL input if [10,320] MHz for ICST307 and [6,200] for ICST525, so the loop will always terminate immediately without assigning any divisor for the reference frequency. But for the code to make sense, let's insert the missing i++ Reported-by: David Binderman <dcb314@hotmail.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Since the dawn of time the ICST code has only supported divide
by one or hang in an eternal loop. Luckily we were always dividing
by one because the reference frequency for the systems using
the ICSTs is 24MHz and the [min,max] values for the PLL input
if [10,320] MHz for ICST307 and [6,200] for ICST525, so the loop
will always terminate immediately without assigning any divisor
for the reference frequency.

But for the code to make sense, let's insert the missing i++

Reported-by: David Binderman <dcb314@hotmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz() 2016-02-08T16:40:36+00:00 Linus Walleij linus.walleij@linaro.org 2016-02-08T08:14:37+00:00 5070fb14a0154f075c8b418e5bc58a620ae85a45 When trying to set the ICST 307 clock to 25174000 Hz I ran into this arithmetic error: the icst_hz_to_vco() correctly figure out DIVIDE=2, RDW=100 and VDW=99 yielding a frequency of 25174000 Hz out of the VCO. (I replicated the icst_hz() function in a spreadsheet to verify this.) However, when I called icst_hz() on these VCO settings it would instead return 4122709 Hz. This causes an error in the common clock driver for ICST as the common clock framework will call .round_rate() on the clock which will utilize icst_hz_to_vco() followed by icst_hz() suggesting the erroneous frequency, and then the clock gets set to this. The error did not manifest in the old clock framework since this high frequency was only used by the CLCD, which calls clk_set_rate() without first calling clk_round_rate() and since the old clock framework would not call clk_round_rate() before setting the frequency, the correct values propagated into the VCO. After some experimenting I figured out that it was due to a simple arithmetic overflow: the divisor for 24Mhz reference frequency as reference becomes 24000000*2*(99+8)=0x132212400 and the "1" in bit 32 overflows and is lost. But introducing an explicit 64-by-32 bit do_div() and casting the divisor into (u64) we get the right frequency back, and the right frequency gets set. Tested on the ARM Versatile. Cc: stable@vger.kernel.org Cc: linux-clk@vger.kernel.org Cc: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
When trying to set the ICST 307 clock to 25174000 Hz I ran into
this arithmetic error: the icst_hz_to_vco() correctly figure out
DIVIDE=2, RDW=100 and VDW=99 yielding a frequency of
25174000 Hz out of the VCO. (I replicated the icst_hz() function
in a spreadsheet to verify this.)

However, when I called icst_hz() on these VCO settings it would
instead return 4122709 Hz. This causes an error in the common
clock driver for ICST as the common clock framework will call
.round_rate() on the clock which will utilize icst_hz_to_vco()
followed by icst_hz() suggesting the erroneous frequency, and
then the clock gets set to this.

The error did not manifest in the old clock framework since
this high frequency was only used by the CLCD, which calls
clk_set_rate() without first calling clk_round_rate() and since
the old clock framework would not call clk_round_rate() before
setting the frequency, the correct values propagated into
the VCO.

After some experimenting I figured out that it was due to a simple
arithmetic overflow: the divisor for 24Mhz reference frequency
as reference becomes 24000000*2*(99+8)=0x132212400 and the "1"
in bit 32 overflows and is lost.

But introducing an explicit 64-by-32 bit do_div() and casting
the divisor into (u64) we get the right frequency back, and the
right frequency gets set.

Tested on the ARM Versatile.

Cc: stable@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: multi_v7_defconfig: enable DW_WATCHDOG 2016-02-04T21:25:33+00:00 Dinh Nguyen dinguyen@opensource.altera.com 2016-02-03T17:03:06+00:00 381a65c21aa1fcf4f3fafe70027b79b303bdb71d The watchdog timer on the SoCFPGA platform is the Synopsys Designware watchdog. Enable CONFIG_DW_WATCHDOG for the driver to get built. Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Olof Johansson <olof@lixom.net> 
The watchdog timer on the SoCFPGA platform is the Synopsys Designware watchdog.
Enable CONFIG_DW_WATCHDOG for the driver to get built.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
ARM: nomadik: fix up SD/MMC DT settings 2016-02-04T21:24:08+00:00 Linus Walleij linus.walleij@linaro.org 2016-02-01T13:18:57+00:00 418d5516568b3fdbc4e7b53677dd78aed8514565 The DTSI file for the Nomadik does not properly specify how the PL180 levelshifter is connected: the Nomadik actually needs all the five st,sig-dir-* flags set to properly control all lines out. Further this board supports full power cycling of the card, and since this variant has no hardware clock gating, it needs a ridiculously low frequency setting to keep up with the ever overflowing FIFO. The pin configuration set-up is a bit of a mystery, because of course these pins are a mix of inputs and outputs. However the reference implementation sets all pins to "output" with unspecified initial value, so let's do that here as well. Cc: stable@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net> 
The DTSI file for the Nomadik does not properly specify how the
PL180 levelshifter is connected: the Nomadik actually needs all
the five st,sig-dir-* flags set to properly control all lines out.

Further this board supports full power cycling of the card, and
since this variant has no hardware clock gating, it needs a
ridiculously low frequency setting to keep up with the ever
overflowing FIFO.

The pin configuration set-up is a bit of a mystery, because of
course these pins are a mix of inputs and outputs. However the
reference implementation sets all pins to "output" with
unspecified initial value, so let's do that here as well.

Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Merge tag 'mvebu-fixes-4.5-1' of git://git.infradead.org/linux-mvebu into fixes 2016-02-01T20:24:31+00:00 Olof Johansson olof@lixom.net 2016-02-01T20:24:31+00:00 6c388927a7db95c20a29ff6c26da29cb9a5555aa mvebu fixes for 4.5 (part 1) - Fix dts on buffalo linksations machines (gpios and leds) - Fix dts partition node according to new binding introduced in v4.5 * tag 'mvebu-fixes-4.5-1' of git://git.infradead.org/linux-mvebu: ARM: dts: orion5x: gpio pin fixes for linkstation lswtgl ARM: dts: kirkwood: gpio-leds fixes for linkstation ls-wvl/vl ARM: dts: kirkwood: gpio-leds fixes for linkstation ls-wxl/wsxl ARM: dts: kirkwood: gpio pin fixes for linkstation ls-wvl/vl ARM: dts: kirkwood: gpio pin fixes for linkstation ls-wxl/wsxl ARM: mvebu: ix4-300d: Add compatible property to "partitions" node ARM: mvebu: kirkwood: Add compatible property to "partitions" node Signed-off-by: Olof Johansson <olof@lixom.net> 
mvebu fixes for 4.5 (part 1)

- Fix dts on buffalo linksations machines (gpios and leds)
- Fix dts partition node according to new binding introduced in v4.5

* tag 'mvebu-fixes-4.5-1' of git://git.infradead.org/linux-mvebu:
  ARM: dts: orion5x: gpio pin fixes for linkstation lswtgl
  ARM: dts: kirkwood: gpio-leds fixes for linkstation ls-wvl/vl
  ARM: dts: kirkwood: gpio-leds fixes for linkstation ls-wxl/wsxl
  ARM: dts: kirkwood: gpio pin fixes for linkstation ls-wvl/vl
  ARM: dts: kirkwood: gpio pin fixes for linkstation ls-wxl/wsxl
  ARM: mvebu: ix4-300d: Add compatible property to "partitions" node
  ARM: mvebu: kirkwood: Add compatible property to "partitions" node

Signed-off-by: Olof Johansson <olof@lixom.net>
Merge tag 'omap-for-v4.5/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes 2016-02-01T20:22:52+00:00 Olof Johansson olof@lixom.net 2016-02-01T20:22:52+00:00 7f7420f07ee2161e09e305e2d8a41069c3612942 Fixes for omaps with the most intrusive stuff being read-only data assembly fixes, the other things are mostly board related: - A series of omap assembly code fixes to fix issues with rodata with ARM_KERNMEM_PERMS enabled. We had several places writing to rodata, which is bad. The fix in most cases is to load the value from data section using a pointer. Let's also enable ARM_KERNMEM_PERMS so DEBUG_RODATA gets selected by default. And while testing things, I also added few more loadable driver modules to the defconfig that I seem to need quite often. - Fix a long standing omap5 RTC mystery and enable RTC where we need to ensure the SoC msecure pin is high so we can write to the RTC registers. - Fix irq types for am437x - A series of minor dts fixes for sbc-am57x and cl-som-am57x - Fixes for torpedo dts to make WLAN behave and to remove a duplicate i2c rate entry This series also includes few minor changes that are not stricly fixes, but would be good to get in during the early -rc cycle: - Remove legacy mailbox platform data that is no longer needed - Add the pdata-quirks needed for the new pwm-omap-dmtimer so people can use it - Enable ti,mbox-send-noirq that's needed by wkup_m3 driver - Enable SPLIT and DWARF4 in omap2plus_defconfig as it makes the initramfs quite a bit smaller * tag 'omap-for-v4.5/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (23 commits) ARM: dts: am57xx: sbc-am57x: correct Eth PHY settings ARM: dts: am57xx: cl-som-am57x: fix CPSW EMAC pinmux ARM: dts: am57xx: sbc-am57x: fix UART3 pinmux ARM: dts: am57xx: cl-som-am57x: update SPI Flash frequency ARM: dts: am57xx: cl-som-am57x: set HOST mode for USB2 ARM: dts: am57xx: sbc-am57x: fix SB-SOM EEPROM I2C address ARM: dts: LogicPD Torpedo: Revert Duplicative Entries ARM: dts: am437x: pixcir_tangoc: use correct flags for irq types ARM: dts: am4372: fix irq type for arm twd and global timer ARM: dts: Fix wl12xx missing clocks that cause hangs ARM: OMAP: Add PWM dmtimer platform data quirks ARM: omap2plus_defconfig: Enable ARM_KERNMEM_PERMS and few loadable modules ARM: OMAP2+: Fix ppa_zero_params and ppa_por_params for rodata ARM: OMAP2+: Fix l2_inv_api_params for rodata ARM: OMAP2+: Fix save_secure_ram_context for rodata ARM: OMAP2+: Fix l2dis_3630 for rodata ARM: OMAP2+: Fix wait_dll_lock_timed for rodata ARM: OMAP2+: Remove legacy mailbox device instantiation ARM: dts: AM4372: Add ti,mbox-send-noirq to wkup_m3 mailbox ARM: dts: AM33xx: Add ti,mbox-send-noirq to wkup_m3 mailbox ... Signed-off-by: Olof Johansson <olof@lixom.net> 
Fixes for omaps with the most intrusive stuff being read-only data
assembly fixes, the other things are mostly board related:

- A series of omap assembly code fixes to fix issues with rodata with
  ARM_KERNMEM_PERMS enabled. We had several places writing to rodata,
  which is bad. The fix in most cases is to load the value from data
  section using a pointer. Let's also enable ARM_KERNMEM_PERMS so
  DEBUG_RODATA gets selected by default. And while testing things,
  I also added few more loadable driver modules to the defconfig that
  I seem to need quite often.

- Fix a long standing omap5 RTC mystery and enable RTC where we need
  to ensure the SoC msecure pin is high so we can write to the RTC
  registers.

- Fix irq types for am437x

- A series of minor dts fixes for sbc-am57x and cl-som-am57x

- Fixes for torpedo dts to make WLAN behave and to remove a duplicate
  i2c rate entry

This series also includes few minor changes that are not stricly
fixes, but would be good to get in during the early -rc cycle:

- Remove legacy mailbox platform data that is no longer needed

- Add the pdata-quirks needed for the new pwm-omap-dmtimer so
  people can use it

- Enable ti,mbox-send-noirq that's needed by wkup_m3 driver

- Enable SPLIT and DWARF4 in omap2plus_defconfig as it makes the
  initramfs quite a bit smaller

* tag 'omap-for-v4.5/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (23 commits)
  ARM: dts: am57xx: sbc-am57x: correct Eth PHY settings
  ARM: dts: am57xx: cl-som-am57x: fix CPSW EMAC pinmux
  ARM: dts: am57xx: sbc-am57x: fix UART3 pinmux
  ARM: dts: am57xx: cl-som-am57x: update SPI Flash frequency
  ARM: dts: am57xx: cl-som-am57x: set HOST mode for USB2
  ARM: dts: am57xx: sbc-am57x: fix SB-SOM EEPROM I2C address
  ARM: dts: LogicPD Torpedo: Revert Duplicative Entries
  ARM: dts: am437x: pixcir_tangoc: use correct flags for irq types
  ARM: dts: am4372: fix irq type for arm twd and global timer
  ARM: dts: Fix wl12xx missing clocks that cause hangs
  ARM: OMAP: Add PWM dmtimer platform data quirks
  ARM: omap2plus_defconfig: Enable ARM_KERNMEM_PERMS and few loadable modules
  ARM: OMAP2+: Fix ppa_zero_params and ppa_por_params for rodata
  ARM: OMAP2+: Fix l2_inv_api_params for rodata
  ARM: OMAP2+: Fix save_secure_ram_context for rodata
  ARM: OMAP2+: Fix l2dis_3630 for rodata
  ARM: OMAP2+: Fix wait_dll_lock_timed for rodata
  ARM: OMAP2+: Remove legacy mailbox device instantiation
  ARM: dts: AM4372: Add ti,mbox-send-noirq to wkup_m3 mailbox
  ARM: dts: AM33xx: Add ti,mbox-send-noirq to wkup_m3 mailbox
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
Merge tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into fixes 2016-02-01T20:21:15+00:00 Olof Johansson olof@lixom.net 2016-02-01T20:21:15+00:00 b83132f76225fa2e61771ef999a884d02c2217fd First fixes for 4.5. Only DT changes: - sama5d4: error in DBGU index - addition of phy properties in several boards - at91sam9n12ek fix a panel compatible string * tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91: ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type ARM: dts: at91: sama5d4 xplained: properly mux phy interrupt ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0 ARM: dts: at91: sama5d2 xplained: add phy address and IRQ for macb0 ARM: dts: at91: at91sam9n12ek: fix panel compatible string ARM: dts: at91: sama5d4: fix instance id of DBGU Signed-off-by: Olof Johansson <olof@lixom.net> 
First fixes for 4.5. Only DT changes:
- sama5d4: error in DBGU index
- addition of phy properties in several boards
- at91sam9n12ek fix a panel compatible string

* tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
  ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type
  ARM: dts: at91: sama5d4 xplained: properly mux phy interrupt
  ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0
  ARM: dts: at91: sama5d2 xplained: add phy address and IRQ for macb0
  ARM: dts: at91: at91sam9n12ek: fix panel compatible string
  ARM: dts: at91: sama5d4: fix instance id of DBGU

Signed-off-by: Olof Johansson <olof@lixom.net>
ARM: realview: use "depends on" instead of "if" after prompt 2016-02-01T20:19:10+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2016-01-25T11:42:44+00:00 c65cd255e4b7dd529b9f35f7e4b05fe154adbb5f This platform recently moved to multi-platform, so missed the global fixup by commit e32465429490 ("ARM: use "depends on" for SoC configs instead of "if" after prompt"). Fix it now. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Olof Johansson <olof@lixom.net> 
This platform recently moved to multi-platform, so missed the global
fixup by commit e32465429490 ("ARM: use "depends on" for SoC configs
instead of "if" after prompt").  Fix it now.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>