08 Oct, 2013
2 commits
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The order of arguments in the call to vco_set() for the ICST clocks appears to
have been switched in error, which results in the VCO not being initialised
correctly. This in turn stops the integrated LCD on things like Integrator/CP
from working correctly.This patch fixes the order and restores the expected functionality.
Reviewed-by: Linus Walleij
Signed-off-by: Jonathan Austin
Signed-off-by: Mike Turquette
Cc: stable@vger.kernel.org -
The SD/MMC clock is named "sdmmc_clk", and NOT "mmc_clk". Because of this,
the SD driver was getting the incorrect clock value. This prevented the
SD driver from initializing correctly.Signed-off-by: Dinh Nguyen
CC: Arnd Bergmann
CC: Olof Johansson
Reviewed-by: Pavel Machek
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Mike Turquette
07 Oct, 2013
1 commit
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This patch fixes the tclk frequency array for the Armada-370 SoC.
This bug has been introduced by commit 6b72333d
("clk: mvebu: add Armada 370 SoC-centric clock init").A wrong tclk frequency affects the following drivers: mvsdio, mvneta,
i2c-mv64xxx and mvebu-devbus. This list may be incomplete.About the mvneta Ethernet driver, note that the tclk frequency is used
to compute the Rx time coalescence. Then, this bug harms the coalescence
configuration and also degrades the networking performances with the
default values.Signed-off-by: Simon Guinot
Cc: Andrew Lunn
Cc: Gregory CLEMENT
Cc: Sebastian Hesselbarth
Acked-by: Jason Cooper
Cc: stable@vger.kernel.org
Signed-off-by: Michael Turquette
02 Oct, 2013
1 commit
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This fixes a regression for the Nomadik on the main system
timers.The Nomadik seemed a bit slow and its heartbeat wasn't looking
healthy. And it was not strange, because it has been connected
to the 32768 Hz clock at boot, while being told by the clock driver
that it was 2.4MHz. Actually connect the TIMCLK to 2.4MHz by
default as this is what we want for nice scheduling, clocksource
and clock event.Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij
Signed-off-by: Mike Turquette
10 Sep, 2013
2 commits
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Pull clock framework changes from Michael Turquette:
"The common clk framework changes for 3.12 are dominated by clock
driver patches, both new drivers and fixes to existing. A high
percentage of these are for Samsung platforms like Exynos. Core
framework fixes and some new features like automagical clock
re-parenting round out the patches"* tag 'clk-for-linus-3.12' of git://git.linaro.org/people/mturquette/linux: (102 commits)
clk: only call get_parent if there is one
clk: samsung: exynos5250: Simplify registration of PLL rate tables
clk: samsung: exynos4: Register PLL rate tables for Exynos4x12
clk: samsung: exynos4: Register PLL rate tables for Exynos4210
clk: samsung: exynos4: Reorder registration of mout_vpllsrc
clk: samsung: pll: Add support for rate configuration of PLL46xx
clk: samsung: pll: Use new registration method for PLL46xx
clk: samsung: pll: Add support for rate configuration of PLL45xx
clk: samsung: pll: Use new registration method for PLL45xx
clk: samsung: exynos4: Rename exynos4_plls to exynos4x12_plls
clk: samsung: exynos4: Remove checks for DT node
clk: samsung: exynos4: Remove unused static clkdev aliases
clk: samsung: Modify _get_rate() helper to use __clk_lookup()
clk: samsung: exynos4: Use separate aliases for cpufreq related clocks
clocksource: samsung_pwm_timer: Get clock from device tree
ARM: dts: exynos4: Specify PWM clocks in PWM node
pwm: samsung: Update DT bindings documentation to cover clocks
clk: Move symbol export to proper location
clk: fix new_parent dereference before null check
clk: wm831x: Initialise wm831x pointer on init
... -
In __clk_init(), after a clock is mostly initialized, a scan is done
of the orphan clocks to see if the clock being registered is the
parent of any of them.This code assumes that any clock that provides a get_parent method
actually has at least one parent, and that's not a valid assumption.As a result, an orphan clock with no parent can return *something*
as the parent index, and that value is blindly used to dereference
the orphan's parent_names[] array (which will be ZERO_SIZE_PTR or
NULL).Fix this by ensuring get_parent is only called for orphans with at
least one parent.Signed-off-by: Alex Elder
Signed-off-by: Mike Turquette
07 Sep, 2013
14 commits
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Since the _get_rate() helper has been modified to use __clk_lookup()
internally, checking of PLL input rates can be done using it and so the
registration code can be simplified.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
This patch adds rate tables for PLLs that can be reconfigured at runtime
for Exynos4x12 SoCs. Provided tables contain PLL coefficients for
input clock of 24 MHz and so are registered only in this case. MPLL does
not need runtime reconfiguration and so table for it is not provided.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
This patch adds rate tables for PLLs that can be reconfigured at runtime
for Exynos4210 SoCs. Provided tables contain PLL coefficients for
input clock of 24 MHz and so are registered only in this case. MPLL does
not need runtime reconfiguration and so table for it is not provided.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
Since PLL input frequency must be known before PLL registration,
mout_vpllsrc clock which is a reference clock of VPLL must be registered
before VPLL.This patch reorders clock registration to register mout_vpllsrc before
VPLL.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
This patch implements round_rate and set_rate callbacks of PLL46xx
driver to allow reconfiguration of PLL at runtime.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
This patch modifies PLL46xx support code and its users to use the
recently introduced common PLL registration helper.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
This patch implements round_rate and set_rate callbacks of PLL45xx
driver to allow reconfiguration of PLL at runtime.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
This patch modifies PLL45xx support code and its users to use the
recently introduced common PLL registration helper.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
This array defines PLLs specific to Exynos 4x12 SoCs and not for all
Exynos 4 SoCs, so the name should represent that.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
Exynos 4 supports only DT based bootup, so non-DT cases does not need to
be handled anymore.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
Since Exynos does not support legacy non-DT boot anymore, most of clock
lookups happen using device tree, so most of static clkdev aliases are no
longer necessary. This patch removes them.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
There is no need to use clkdev inside the clock driver to retrieve the
clocks for internal use. Instead __clk_lookup() helper can be used to
look up clocks by their platform name.This patch modifies the behavior of _get_rate() helper to look up clocks
by platform name and adjusts all users of it to pass platform names
instead of clkdev aliases.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
Exynos cpufreq driver is the only remaining piece of code that needs
static clkdev aliases for operation, because it can not do device tree
based clock lookups yet.This patch moves clock alias definitions for those clocks to separate
arrays that can be used with samsung_clk_register_alias() helper.Signed-off-by: Tomasz Figa
Signed-off-by: Kyungmin Park
Reviewed-by: Sylwester Nawrocki
Signed-off-by: Mike Turquette -
Pull ARM SoC platform changes from Olof Johansson:
"This branch contains mostly additions and changes to platform
enablement and SoC-level drivers. Since there's sometimes a
dependency on device-tree changes, there's also a fair amount of
those in this branch.Pieces worth mentioning are:
- Mbus driver for Marvell platforms, allowing kernel configuration
and resource allocation of on-chip peripherals.
- Enablement of the mbus infrastructure from Marvell PCI-e drivers.
- Preparation of MSI support for Marvell platforms.
- Addition of new PCI-e host controller driver for Tegra platforms
- Some churn caused by sharing of macro names between i.MX 6Q and 6DL
platforms in the device tree sources and header files.
- Various suspend/PM updates for Tegra, including LP1 support.
- Versatile Express support for MCPM, part of big little support.
- Allwinner platform support for A20 and A31 SoCs (dual and quad
Cortex-A7)
- OMAP2+ support for DRA7, a new Cortex-A15-based SoC.The code that touches other architectures are patches moving MSI
arch-specific functions over to weak symbols and removal of
ARCH_SUPPORTS_MSI, acked by PCI maintainers"* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (266 commits)
tegra-cpuidle: provide stub when !CONFIG_CPU_IDLE
PCI: tegra: replace devm_request_and_ioremap by devm_ioremap_resource
ARM: tegra: Drop ARCH_SUPPORTS_MSI and sort list
ARM: dts: vf610-twr: enable i2c0 device
ARM: dts: i.MX51: Add one more I2C2 pinmux entry
ARM: dts: i.MX51: Move pins configuration under "iomuxc" label
ARM: dtsi: imx6qdl-sabresd: Add USB OTG vbus pin to pinctrl_hog
ARM: dtsi: imx6qdl-sabresd: Add USB host 1 VBUS regulator
ARM: dts: imx27-phytec-phycore-som: Enable AUDMUX
ARM: dts: i.MX27: Disable AUDMUX in the template
ARM: dts: wandboard: Add support for SDIO bcm4329
ARM: i.MX5 clocks: Remove optional clock setup (CKIH1) from i.MX51 template
ARM: dts: imx53-qsb: Make USBH1 functional
ARM i.MX6Q: dts: Enable I2C1 with EEPROM and PMIC on Phytec phyFLEX-i.MX6 Ouad module
ARM i.MX6Q: dts: Enable SPI NOR flash on Phytec phyFLEX-i.MX6 Ouad module
ARM: dts: imx6qdl-sabresd: Add touchscreen support
ARM: imx: add ocram clock for imx53
ARM: dts: imx: ocram size is different between imx6q and imx6dl
ARM: dts: imx27-phytec-phycore-som: Fix regulator settings
ARM: dts: i.MX27: Remove clock name from CPU node
...
04 Sep, 2013
1 commit
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The __clk_get_flags() symbol is exported immediately following the
clk_unprepare_unused_subtree() function. This is unusual, since a symbol
export typically follows body of the function that it exports.Signed-off-by: Thierry Reding
Signed-off-by: Mike Turquette
31 Aug, 2013
2 commits
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Commit 71472c0 (clk: add support for clock reparent on set_rate) added a
dereference of the new_parent pointer in clk_reparent(), but as detected
by smatch clk_reparent() later checks whether new_parent is NULL.The dereference was in order to clear the new parent's new_child pointer
to avoid duplicate POST_RATE_CHANGE notifications, so clearly isn't
necessary if the new parent is NULL, so move it inside the "if
(new_parent)" block.Reported-by: Dan Carpenter
Signed-off-by: James Hogan
Signed-off-by: Mike Turquette -
Otherwise any attempt to interact with the hardware will crash. This is
what happens when drivers get written blind.Signed-off-by: Mark Brown
Cc: stable@vger.kernel.org
Signed-off-by: Mike Turquette
30 Aug, 2013
6 commits
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dout_pixel is a new ID allocated for pixel clock divider. It is
queried in the driver to pass as the parent to hdmi clock while
switching between parents.Signed-off-by: Rahul Sharma
Acked-by: Tomasz Figa
Signed-off-by: Mike Turquette -
hdmi driver needs to change the parent of hdmi clock
to pixel clock or hdmiphy clock, based on the stability
of hdmiphy. This patch is exposing the mux for changing
the parent.Signed-off-by: Rahul Sharma
Acked-by: Tomasz Figa
Signed-off-by: Mike Turquette -
Listing sclk_hdmiphy at 0th position in the list of parents is
causing wrong configuration in reg SRC_DISP10.Signed-off-by: Rahul Sharma
Acked-by: Tomasz Figa
Signed-off-by: Mike Turquette -
Adding sysmmu clock for mixer for exynos5420.
Signed-off-by: Rahul Sharma
Acked-by: Tomasz Figa
Signed-off-by: Mike Turquette -
Add sclk_hdmiphy to the list of exposed clocks. This is required
by hdmi driver to change the parent of hdmi clock.Signed-off-by: Rahul Sharma
Acked-by: Tomasz Figa
Signed-off-by: Mike Turquette -
Since the driver was written an is_prepared() operation has been made
possible. Since the driver uses I2C I/O only prepare operations are
provided so move the is_enabled() operation over to is_prepared().Signed-off-by: Mark Brown
Signed-off-by: Mike Turquette
29 Aug, 2013
2 commits
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parent of hdmi and mixer block is mentioned as aclk200 which is
not correct. It is clocked by the ouput of aclk200_disp1. Hence
parent for mixer and hdmi clocks is changed to aclk200_disp1.Signed-off-by: Rahul Sharma
Signed-off-by: Mike Turquette -
The lock bit on PLL_U does not seem to be working correctly and
sometimes never gets set when waiting for the PLL to come up.
Remove the TEGRA_PLL_USE_LOCK flag to use a constant delay.Signed-off-by: Tuomas Tynkkynen
Tested-by: Stephen Warren
Acked-by: Stephen Warren
Signed-off-by: Mike Turquette
28 Aug, 2013
9 commits
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__initdata should be placed between the variable name and equal
sign for the variable to be placed in the intended section.Signed-off-by: Sachin Kamat
Signed-off-by: Mike Turquette -
__initconst should be placed between the variable name and equal
sign for the variable to be placed in the intended section.Signed-off-by: Sachin Kamat
Cc: Emilio López
Signed-off-by: Mike Turquette
[mturquette@linaro.org: refreshed patch based on sunxi changes] -
__initconst should be placed between the variable name and equal
sign for the variable to be placed in the intended section.Signed-off-by: Sachin Kamat
Acked-by: Gregory Clement
Signed-off-by: Mike Turquette -
__initconst should be placed between the variable name and equal
sign for the variable to be placed in the intended section.Signed-off-by: Sachin Kamat
Acked-by: Gregory Clement
Signed-off-by: Mike Turquette -
__initconst should be placed between the variable name and equal
sign for the variable to be placed in the intended section.Signed-off-by: Sachin Kamat
Acked-by: Gregory Clement
Signed-off-by: Mike Turquette -
__initconst should be placed between the variable name and equal
sign for the variable to be placed in the intended section.Signed-off-by: Sachin Kamat
Acked-by: Gregory Clement
Signed-off-by: Mike Turquette -
__initconst should be placed between the variable name and equal
sign for the variable to be placed in the intended section.While at it also make 'u300_clk_lookup' static as it is used only
in this file.Signed-off-by: Sachin Kamat
Acked-by: Linus Walleij
Signed-off-by: Mike Turquette -
__initconst should be placed between the variable name and equal
sign for the variable to be placed in the intended section.Signed-off-by: Sachin Kamat
Acked-by: Linus Walleij
Signed-off-by: Mike Turquette -
__initconst should be placed between the variable name and equal
sign for the variable to be placed in the intended section.Signed-off-by: Sachin Kamat
Acked-by: Stephen Warren
Signed-off-by: Mike Turquette
