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2014-01-21ARM: shmobile: r8a7790.dtsi: ficx i2c[0-3] clock referenceBen Dooks
The R8A7790's dtsi file i2c0, i2c1, i2c2, and i2c3 nodes have clock references to the mstp3_clks clock node, however these clocks are in the mstp9_clks node. The error was introducted in 72197ca7a1cb1cea5 ("ARM: shmobile: r8a7790: Reference clocks") which is in Simon's current development tree. This patch fixes the following error: of_clk_src_onecell_get: invalid clock index 31 i2c-rcar e6508000.i2c: cannot get clock i2c-rcar: probe of e6508000.i2c failed with error -2 Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-26Revert "ARM: shmobile: r8a7791: Add SSI clocks in device tree"Simon Horman
This reverts commit b652896b02df3dfde3a68957cce01f2aa4585842. Unfortunately this commit prevents multiplatform from booting to the point where a serial console is available. Revert it while a solution is sought. Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-26Revert "ARM: shmobile: r8a7790: Add SSI clocks in device tree"Simon Horman
This reverts commit 6dea2c1ebc6fc43852fd6125d75a75da223ff707. Unfortunately this commit prevents multiplatform from booting to the point where a serial console is available. Revert it while a solution is sought. Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-24ARM: shmobile: r8a7791: Add SSI clocks in device treeLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-24ARM: shmobile: r8a7790: Add SSI clocks in device treeLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-24ARM: shmobile: r8a7791: Add QSPI module clock in device treeLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-24ARM: shmobile: r8a7790: Add QSPI module clock in device treeLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-24ARM: shmobile: r8a7791: Add MSIOF clocks in device treeLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-24ARM: shmobile: r8a7790: Add MSIOF clocks in device treeLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-24ARM: shmobile: Remove Koelsch reference DTSLaurent Pinchart
Now that the DTS file r8a7790-koelsch.dts can be used with board-koelsch.c and board-koelsch-reference.c, proceed with removing r8a7790-koelsch-reference.dts. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: Remove Lager reference DTSLaurent Pinchart
Now that the DTS file r8a7790-lager.dts can be used with board-lager.c and board-lager-reference.c, proceed with removing r8a7790-lager-reference.dts. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: koelsch: Specify external clock frequency in DTLaurent Pinchart
The external crystal frequency is 20MHz on the Koelsch board. Specify it in the device tree. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: lager: Specify external clock frequency in DTLaurent Pinchart
The external crystal frequency is 20MHz on the Lager board. Specify it in the device tree. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: Sync Koelsch DTS with Koelsch reference DTSLaurent Pinchart
Copy the device nodes from Koelsch reference into the Koeslch device tree file. This will allow us to use a single DTS file regarless of kernel configuration. In case of legacy C board code the device nodes may or may not be used, but in the multiplatform case all the DT device nodes are used. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: Sync Lager DTS with Lager reference DTSLaurent Pinchart
Copy the device nodes from Lager reference into the Lager device tree file. This will allow us to use a single DTS file regarless of kernel configuration. In case of legacy C board code the device nodes may or may not be used, but in the multiplatform case all the DT device nodes are used. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: r8a7791: Add clocksLaurent Pinchart
Declare all core clocks and DIV6 clocks, as well as all MSTP clocks currently used by r8a7791 boards. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: r8a7790: Reference clocksLaurent Pinchart
Reference clocks using a "clocks" property in all nodes corresponding to devices that require a clock. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: r8a7790: Add clocksLaurent Pinchart
Declare all core clocks and DIV6 clocks, as well as all MSTP clocks currently used by r8a7790 boards. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: armadillo: dts: Add gpio-keys deviceLaurent Pinchart
The board had 4 buttons connected to GPIOs, add a corresponding gpio-keys device. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: sh73a0: Specify PFC interrupts in DTLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: r8a7740: Specify PFC interrupts in DTLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: r8a73a4: Specify PFC interrupts in DTLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: armadillo: dts: Add PWM backlight enable GPIOLaurent Pinchart
The Armadillo 800 EVA panel module has a backlight enable signal connected to GPIO 61. Report this in the backlight DT node. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: armadillo: dts: Add PWM backlight power supplyLaurent Pinchart
Commit 22ceeee16eb8f0d04de3ef43a5174fb30ec18af9 ("pwm-backlight: Add power supply support") added a mandatory power supply for the PWM backlight. Add a fixed 5V regulator and reference it for the backlight power supply. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19Merge branch 'heads/soc2' into dt3-baseSimon Horman
2013-12-19arm: shmobile: clks: remove duplicated clock from r7s72100Wolfram Sang
Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: koelsch: Conditionally select MICREL_PHYSimon Horman
The koelsch board uses has an SH ethernet controller which uses a Micrel phy. Select MICREL_PHY for koelsch if SH_ETH is enabled to make use of the Micrel-specific phy driver rather than relying on the generic phy driver. Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19Merge branch 'heads/sh-sci' into dt3-baseSimon Horman
2013-12-19Merge tag 'v3.13-rc3' into dt3-baseSimon Horman
Linux 3.13-rc3 Conflicts: drivers/pinctrl/sh-pfc/pfc-r8a7740.c drivers/pinctrl/sh-pfc/pfc-sh7372.c
2013-12-19Merge remote-tracking branch 'daniel-lezcano/clockevents/for-Simon-3.13-rc2' ↵Simon Horman
into dt3-base
2013-12-19Merge remote-tracking branch 'mike-turquette/clk-next-shmobile' into dt3-baseSimon Horman
2013-12-19Merge commit '70c8f01' into dt3-baseSimon Horman
This is a commit from the for-next branch of Linus Walleij's pin control tre git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git It is the oldest commit in that branch that provides the dependencies needed for SoC changes to the usage of sh-pfc.
2013-12-19ARM: shmobile: rcar-gen2: Initialize CCF before clock sourcesLaurent Pinchart
When CONFIG_COMMON_CLOCK is enabled, call rcar_gen2_clocks_init() in the timer init function to initialize the common clock framework before initializing the clock sources. This will take care of clock initialization when the r8a779[01] boards will be switched to multiplatform kernels. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: r8a7791: Add clock index macros for DT sourcesLaurent Pinchart
Add macros usable by device tree sources to reference r8a7791 clocks by index. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-19ARM: shmobile: r8a7790: Add clock index macros for DT sourcesLaurent Pinchart
Add macros usable by device tree sources to reference r8a7790 clocks by index. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-18clocksource: sh_cmt: Add clk_prepare/unprepare supportLaurent Pinchart
Prepare the clock at probe time, as there is no other appropriate place in the driver where we're allowed to sleep. Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2013-12-14ARM: shmobile: Add select MIGHT_HAVE_PCI for PCI-AHB bridge codeBen Dooks
The PCI sub-system is not enabled by default on ARM and on certain Renesas devices the build does not select it. This means that there are configurations that do not allow the AHB-PCI bridge used for the USB sub-systems to be built. For the R8A7790, R8A7791 and EMEV-2 select MIGHT_HAVE_PCI to allow the PCI drivers to be built. Also select MIGHT_HAVE_PCI for the multi-config where there may be many Reneasas devices selected. Reviewed-by: Ian Molton <ian.molton@codethink.co.uk> Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-14serial: sh-sci: Convert to clk_prepare/unprepareLaurent Pinchart
Turn clk_enable() and clk_disable() calls into clk_prepare_enable() and clk_disable_unprepare() to get ready for the migration to the common clock framework. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-14serial: sh-sci: Don't enable/disable port from within break timerLaurent Pinchart
The break timer accesses hardware registers and thus requires the port to be enabled. It currently ensures this by enabling the port at the beginning of the timer handler, and disabling it at the end. However, the enable/disable operations call the runtime PM sync functions, which are not allowed in atomic context. The current situation is thus broken. This change relies on non-atomic code to enable/disable the port. The break timer will only be started from the IRQ handler, which already runs with the port enabled. We just need to ensure that the port won't be disabled with the timer running, and that's easily done by just cancelling the timer in the port disable function. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-12clk: shmobile: Add MSTP clock supportLaurent Pinchart
MSTP clocks are gate clocks controlled through a register that handles up to 32 clocks. The register is often sparsely populated. Those clocks are found on Renesas ARM SoCs. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-12-12clk: shmobile: Add DIV6 clock supportLaurent Pinchart
DIV6 clocks are divider gate clocks controlled through a single register. The divider is expressed on 6 bits, hence the name, and can take values from 1/1 to 1/64. Those clocks are found on Renesas ARM SoCs. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-12-12clk: shmobile: Add R-Car Gen2 clocks supportLaurent Pinchart
The R-Car Gen2 SoCs (R8A7790 and R8A7791) have several clocks that are too custom to be supported in a generic driver. Those clocks can be divided in two categories: - Fixed rate clocks with multiplier and divisor set according to boot mode configuration - Custom divider clocks with SoC-specific divider values This driver supports both. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Kumar Gala <galak@codeaurora.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-12-12sh-pfc: Support GPIO to IRQ mapping specified IRQ resourcesLaurent Pinchart
On non-DT platforms IRQ controllers associated with the GPIOs have a fixed IRQ base value known at compile time. The sh-pfc driver translates GPIO number to IRQ numbers using a hardcoded table. This mechanism breaks on DT platforms, as the IRQ base values are dynamic in that case. Fix this by specifying IRQs associated with GPIOs in IRQ resources, populated automatically from the device tree. When IRQ resources are specified the driver requires one IRQ resource per GPIO able to generate an interrupt, and uses the translation table to compute the IRQ resource offset instead of the IRQ number. Cc: devicetree@vger.kernel.org Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-12sh-pfc: Rename sh_pfc window field to windowsLaurent Pinchart
There's more than one window, name the field windows. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-12sh-pfc: sh73a0: Sort IRQ entries by IRQ numberLaurent Pinchart
This makes catching duplicate entries easier. Merge the two IRQ9 entries found after sorting. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-12sh-pfc: sh73a0: Add missing IRQ15Laurent Pinchart
The external IRQ15 input multiplexed on GPIO 0 is missing. Add it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-12sh-pfc: Terminate gpios array by -1Laurent Pinchart
0 is a valid GPIO value, use -1 to terminate the gpios array in IRQ lists. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-12sh-pfc: Turn unsigned indices into unsigned intLaurent Pinchart
Some indices take positive values only, make them unsigned. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-12pinctrl: pinconf: remove checks on ops->pin_config_getAlexandre Belloni
ops->pin_config_get() is only used in one specific path that will only be taken for generic pinconf drivers (ops->is_generic == true) when dumping the pinconf by using debugfs. By removing the check in pinconf_check_ops(), let's stop pressuring people to write a pin_config_get() function that will never be used and so will probably never be tested. Removing the check in pinconf_pins_show() allows driver to not implement pin_config_get() but still get a dump of the pinconf in debugfs by implementing pin_config_dbg_show(). Finally, not implementing pin_config_get() now results in returning -ENOTSUPP instead of -EINVAL. While this doesn't have any real impact for now, this feels more right. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-12pinctrl: at91: initialize config parameter to 0Alexandre Belloni
When passing a not initialized config parameter, at91_pinconf_get() would return a bogus value. Fix that by initializing it to zero before using it. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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