- 11 Dec, 2012 1 commit
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Mike Turquette authored
Some gate clocks have special needs which must be handled during the disable-unused clocks sequence. These needs might be driven by software due to the fact that we're disabling a clock outside of the normal clk_disable path and a clk's enable_count will not be accurate. On the other hand a specific hardware programming sequence might need to be followed for this corner case. This change is needed for the upcoming OMAP port to the common clock framework. Specifically, it is undesirable to treat the disable-unused path identically to the normal clk_disable path since other software layers are involved. In this case OMAP's clockdomain code throws WARNs and bails early due to the clock's enable_count being set to zero. A custom callback mitigates this problem nicely. Cc: Paul Walmsley <paul@pwsan.com> Acked-by:
Ulf Hansson <ulf.hansson@linaro.org> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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- 04 Dec, 2012 1 commit
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Linus Walleij authored
This fixes a bit error in the U8500 clock implementation: the unused p2_pclk12 registered at bit 12 in periphereral group 6 was defined as using bit 11 rather than bit 12. When walking over and disabling the unused clocks in the tree at late init time, p2_pclk12 was disabled, by effectively clearing the but for p2_pclk11 instead of bit 12 as it should have, thus disabling gpio block 6 and 7. Reported-by:
Lee Jones <lee.jones@linaro.org> Acked-by:
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- 26 Nov, 2012 2 commits
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Martin Fuzzey authored
When a clock, C is initialised any orphan clocks listing C as a possible parent are reparented to it regardless of the parent requested by the orphan's get_parent() operation. This means that multiplexers registered before their parents are reparented to the first parent subsequently declared, regardless of the selection made by the hardware registers. For example: static const char *sel[] = { "srcA", "srcB", "dummy", "srcC" }; child = clk_register_mux(NULL, "child", sel, ARRAY_SIZE(sel), ...); clk_register_fixed(NULL, "dummy", ...); clk_register_fixed(NULL, "srcA", ...); clk_register_fixed(NULL, "srcB", ...); clk_register_fixed(NULL, "srcC", ...); Causes child's parent to always be "dummy". To fix this, when an orphanned clock has a get_parent() operation, only reparent to the clock indicated by get_parent(). Signed-off-by:Martin Fuzzey <mfuzzey@parkeon.com> Signed-off-by:
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Ulf Hansson authored
The abx500 clock driver is a platform driver which will be initialized during arch init. The platform device shall be added from the ab-core driver as a mfd child device to maintain correct boot sequence. Depending on what ab version we use, different clock definitions will be added. Signed-off-by:
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- 21 Nov, 2012 11 commits
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Vipul Kumar Samar authored
Dummy clocks were added for ARM platforms, so that clk_get() for interface clk doesn't fail for amba devices from amba_probe(). Because there is no amba device for SPEAr that doesn't have a valid clock with dev_id for SPEAr, we don't need these dummy clocks. Hence, remove them. Signed-off-by:
Vipul Kumar Samar <vipulkumar.samar@st.com> Signed-off-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
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Deepak Sikri authored
The patch corrects the case when the rate table is being scanned for a given frequency, and the search frequency is beyond the maximum frequency indexed in the table. By default, the system should be set at max frequency present in the rate table. This patch correctly returns the corresponding index value. Signed-off-by:
Deepak Sikri <deepak.sikri@st.com> Signed-off-by:
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Deepak Sikri authored
This patch updates the existing rate tables with new frequencies. Signed-off-by:
Rajeev Kumar <rajeev-dlh.kumar@st.com> Signed-off-by:
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Vipul Kumar Samar authored
This patch adds missing clocks: twd and macb. Signed-off-by:
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Vipul Kumar Samar authored
Flag CLK_SET_RATE_PARENT is required for a clock, where we want to propagate clk_set_rate to its parent. This patch adds this to multiple clocks. Signed-off-by:
Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by:
Vijay Kumar Mishra <vijay.kumar@st.com> Signed-off-by:
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Shiraz Hashim authored
This patch fixes parent names of multiple clocks. Signed-off-by:
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Shiraz Hashim authored
This patch updates mux clock names of multiple clocks. It updates _clk with _mclk to make it more readable. Signed-off-by:
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Rajeev Kumar authored
dev_id & con_id names of multiple clocks are incorrect. This patch fixes these names with the names that come via DT. Signed-off-by:
Bhavna Yadav <bhavna.yadav@st.com> Signed-off-by:
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Linus Walleij authored
The ARM IM-PD1 add-on module has a few clock of its own, let's move also these down to the drivers/clk/versatile driver dir and get rid of any remaining oldschool Integrator clocks. Signed-off-by:
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Linus Walleij authored
It turns out that all platforms using the ICST VCO are really just touching two registers, and in the same way as well: one register with the VCO configuration as such, and one lock register that makes it possible to write to the VCO. Factor this register read/write into the ICST driver so we can reuse it in the IM-PD1 driver. Signed-off-by:
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Linus Walleij authored
The GPLv2 headers were missing and the subsystem maintainer likes them so put them in. I am the copyright holder, so explicitly licensing these under the GPLv2. Reported-by:
Mike Turquette <mturquette@ti.com> Signed-off-by:
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- 16 Nov, 2012 1 commit
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Fabio Estevam authored
Use a better name for the USB PHY clock. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
Shawn Guo <shawn.guo@linaro.org> Signed-off-by:
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- 15 Nov, 2012 4 commits
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Axel Lin authored
This fixes compile error if one of SPEAr3xx implementations is not selected. CC drivers/clk/spear/spear3xx_clock.o drivers/clk/spear/spear3xx_clock.c: In function 'spear3xx_clk_init': drivers/clk/spear/spear3xx_clock.c:599:3: error: implicit declaration of function 'spear300_clk_init' [-Werror=implicit-function-declaration] drivers/clk/spear/spear3xx_clock.c:601:3: error: implicit declaration of function 'spear310_clk_init' [-Werror=implicit-function-declaration] drivers/clk/spear/spear3xx_clock.c:603:3: error: implicit declaration of function 'spear320_clk_init' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors make[3]: *** [drivers/clk/spear/spear3xx_clock.o] Error 1 make[2]: *** [drivers/clk/spear] Error 2 make[1]: *** [drivers/clk] Error 2 make: *** [drivers] Error 2 Signed-off-by:
Axel Lin <axel.lin@ingics.com> Acked-by:
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Wei Yongjun authored
In case of error, the function clk_register() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by:
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Ulf Hansson authored
Signed-off-by:
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Ulf Hansson authored
Signed-off-by:
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- 10 Nov, 2012 15 commits
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Ulf Hansson authored
At the same time the prcc bit for the kclk is corrected to bit 8 instead of 3. Signed-off-by:
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Ulf Hansson authored
Signed-off-by:
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Ulf Hansson authored
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:
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Ulf Hansson authored
Signed-off-by:
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Ulf Hansson authored
Cc: Ben Dooks <ben-linux@fluff.org> Cc: Wolfram Sang <w.sang@pengutronix.de> Acked-by:
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Tony Prisk authored
This patch adds some additional handling for the SDMMC special case in round_rate and set_rate which results in invalid divisor messages at boot time. Signed-off-by:
Tony Prisk <linux@prisktech.co.nz> Signed-off-by:
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Wei Yongjun authored
In case of error, the function clk_register_fixed_rate() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by:
Stephen Warren <swarren@wwwdotorg.org> Signed-off-by:
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Ulf Hansson authored
Using the armss clk to update the frequency makes the driver no more directly dependant on the prmcu API. Signed-off-by:
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Ulf Hansson authored
The new armss clk is a prcmu_scalable_rate clk which represents the ARMSS clk. This then makes it possible to convert the smp_twd clk to a fixed factor clock type, using a fixed divider of 2 and with the armss clk as parent. Signed-off-by:
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Ulf Hansson authored
The prcmu_scalable_rate clock can change rate but is not gateable. Signed-off-by:
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Ulf Hansson authored
ARMSS clk directly maps it's frequency towards the cpufreq table. To be able to update the ARMSS clk rate, a new set_rate function for the ARMSS clk is added, which also will trigger a corresponding ARM OPP request. Additionally an ARMSS clk round_rate function is added to fetch valid cpufreq frequencies. Signed-off-by:
Samuel Ortiz <sameo@linux.intel.com> Signed-off-by:
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Ulf Hansson authored
By fetching the table as platform data we do not need the internally hardcoded cpufreq table anymore. Moreover the corresponding arm_opp idx2opp table, used for mapping frequency to correct opp bits is also removed. This due to that the opp bits is put directly in the index field of the cpufreq table. Signed-off-by:
Jonas Aaberg <jonas.aberg@stericsson.com> Acked-by:
Rafael J. Wysocki <rjw@sisk.pl> Acked-by:
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Ulf Hansson authored
To fetch the mfd child device we register the cpufreq driver as a platform driver. Signed-off-by:
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Ulf Hansson authored
The cpufreq table needs dynamically update due to what the PRCMU firmware is supporting. The table is then provided through to the mfd child device as platform data. Signed-off-by:
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Ulf Hansson authored
The cpufreq device is already added from the prcmu driver as a mfd child device. Signed-off-by:
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- 29 Oct, 2012 5 commits
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Stephen Boyd authored
Move this driver to use devm_clk_register() to simplify some error paths and reduce lines of code. Acked-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:
Stephen Boyd <sboyd@codeaurora.org> Signed-off-by:
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Stephen Boyd authored
Some clock drivers can be simplified if devres takes care of unregistering any registered clocks along error paths. Introduce devm_clk_register() so that clock drivers get unregistration for free along with simplified error paths. Signed-off-by:
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Stephen Boyd authored
clk_register() returns an ERR_PTR upon failure, not NULL. Fix these error paths. Acked-by:
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Pawel Moll authored
This patch adds a DT and non-DT based implementation of the common clock infrastructure for Versatile Express platform. It registers (statically or using DT) all required fixed clocks, initialises motherboard's SP810 cell (that provides clocks for SP804 timers) and explicitly registers VE "osc" driver, to make the clock generators available early. Signed-off-by:
Pawel Moll <pawel.moll@arm.com> Signed-off-by:
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Pawel Moll authored
This driver provides a common clock framework hardware driver for Versatile Express clock generators (a.k.a "osc") controlled via the config bus. Signed-off-by:
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