- 11 Apr, 2015 3 commits
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Ben Dooks authored
Change to using endian agnostic _relaxed IO accessors instead of __raw Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> -- CC: Andrew Victor <linux@maxim.org.za> CC: Nicolas Ferre <nicolas.ferre@atmel.com> CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> CC: Mike Turquette <mturquette@linaro.org> (maintainer:COMMON CLK FRAMEWORK) CC: Stephen Boyd <sboyd@codeaurora.org> (maintainer:COMMON CLK FRAMEWORK) CC: linux-kernel@vger.kernel.org (open list:COMMON CLK FRAMEWORK) Signed-off-by: Michael Turquette <mturquette@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linuxMichael Turquette authored
clk/tegra: Changes for v4.1-rc1 These are mostly cleanups that I've been carrying in my local tree for far too long. In addition to those, there are some preparatory patches for the upcoming Tegra210 support and a patch to enable clocks needed for HDMI audio support.
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Martin Fuzzey authored
The active low flag in the DT cell is currently ignored. This occurs because of_get_named_gpio_flags() does not apply the flags to the underlying struct gpio_desc so the test in clk_register_gpio_gate() was bogus. Note that this patch changes the internal kernel API for clk_register_gpio_gate() but there are currently no other users. Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com> Acked-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
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- 10 Apr, 2015 14 commits
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Philipp Zabel authored
Some board designers, when running out of clock output pads, decide to (mis)use PWM output pads to provide a clock to external components. This driver supports this practice by providing an adapter between the PWM and clock bindings in the device tree. As the PWM bindings specify the period in the device tree, this is a fixed clock. Tested-by: Janusz Uzycki <j.uzycki@elproma.com.pl> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Michael Turquette <mturquette@linaro.org>
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Jassi Brar authored
The CRG11 clock controller is managed by remote f/w. This driver simply maps Linux CLK ops onto mailbox api. Signed-off-by: Andy Green <andy.green@linaro.org> Signed-off-by: Vincent Yang <vincent.yang@socionext.com> Signed-off-by: Tetsuya Nuriya <nuriya.tetsuya@socionext.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
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Robert Jarzmik authored
The pxa3xx scheduler relies on the pxa-timer, which requires a clock for its rate. As the clock handling will be taken over by the clock framework, add this missing clock. The miss was discovered by attempting to run a zylonite platform in a device-tree configuration, with the future patch to shift clocks handling to clock framework applied. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Michael Turquette <mturquette@linaro.org>
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Thierry Reding authored
The current parent, plld_out0, does not exist. The proper name is pll_d_out0. While at it, rename the plld_dsi clock to pll_d_dsi_out to be more consistent with other clock names. Fixes: b270491e ("clk: tegra: Define PLLD_DSI and remove dsia(b)_mux") Signed-off-by: Thierry Reding <treding@nvidia.com>
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Thierry Reding authored
There is no reason why Tegra114 cannot use the same generic code to set up the oscillator, clk_m and pll_ref clocks. The only effective change that this causes is that the CLK_SET_PARENT_RATE flag is dropped, but since these clocks are all fixed it is not needed anyway. Signed-off-by: Thierry Reding <treding@nvidia.com>
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Thierry Reding authored
Currently the Tegra clock driver simplifies the clock tree somewhat by taking advantage of the fact that clk_m runs at the same frequency as the oscillator. While that's true on all currently supported SoCs, it does not apply to Tegra210 anymore. On Tegra210 clk_m is typically divided down from the oscillator frequency. To support that setup, add a separate clock for the oscillator that both clk_m and pll_ref derive from. Modify the tegra_osc_clk_init() function to take an additional divider parameter for clk_m. Existing SoCs always pass in 1, whereas Tegra210 will read the divider from a register in the clock & reset controller. Signed-off-by: Thierry Reding <treding@nvidia.com>
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Thierry Reding authored
Tegra210 has an extra bank of peripheral clock registers. Add it to the generic peripheral clock code. Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Cc: Prashant Gaikwad <pgaikwad@nvidia.com> Reviewed-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
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Thierry Reding authored
The number of resets controls is 32 times the number of peripheral register banks rather than 32 times the number of clocks. This reduces (drastically) the number of reset controls registered from 10080 (315 clocks * 32) to 224 (6 peripheral register banks * 32). This also fixes a potential crash because trying to use any of the excess reset controls (224-10079) would have caused accesses beyond the array bounds of the peripheral register banks definition array. Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Cc: Prashant Gaikwad <pgaikwad@nvidia.com> Fixes: 6d5b988e ("clk: tegra: implement a reset driver") Cc: stable@vger.kernel.org # 3.14+ Signed-off-by: Thierry Reding <treding@nvidia.com>
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Thierry Reding authored
The ret variable is often explicitly initialized to 0, but there is no need to do so in many cases because it will immediately be overwritten with the return value from a function. Signed-off-by: Thierry Reding <treding@nvidia.com>
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Thierry Reding authored
Some of the .dev_id entries in the devclks table were oddly indented. Make them consistent with the rest of the table. Reviewed-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
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Thierry Reding authored
Make usage of blank lines as separators more consistent. Signed-off-by: Thierry Reding <treding@nvidia.com>
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Dylan Reid authored
Add the clocks used for HDMI audio played through the HDA controller. Initialize the codec clock to 48Mhz and the HDA clock to 102MHz per the TRM. Signed-off-by: Dylan Reid <dgreid@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
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Thierry Reding authored
The second to last parameter of the TEGRA_CLK_PERIPH macro denotes a table and should therefore users should pass in NULL instead of 0. Fixes a bunch of sparse warnings like this: warning: Using plain integer as NULL pointer Reviewed-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
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Thierry Reding authored
The clock initialization structure is named struct clk_init_table. Update the kerneldoc comment to use the correct name. Reviewed-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
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- 09 Apr, 2015 1 commit
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Julia Lawall authored
Put NULL test on the result of the previous call instead on one of its arguments. A simplified version of the semantic match that finds this problem is as follows (http://coccinelle.lip6.fr/): // <smpl> r@ expression *e1; expression *e2; identifier f; statement S1,S2; @@ e1 = f(...,e2,...); ( if (e1 == NULL || ...) S1 else S2 | *if (e2 == NULL || ...) S1 else S2 ) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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- 08 Apr, 2015 1 commit
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Georgi Djakov authored
When we introduced the parent_map tables, we missed to update some of the functions where mapping is translated. Fix this. Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Tested-by: Nicolas Dechesne <nicolas.dechesne@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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- 07 Apr, 2015 1 commit
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Bartlomiej Zolnierkiewicz authored
Support for Qualcomm's clock controllers should be available only on Qualcomm platforms. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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- 06 Apr, 2015 1 commit
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Archit Taneja authored
The NAND controller within EBI2 requires EBI2_CLK and EBI2_ALWAYS_ON_CLK clocks. Create structs for these clocks so that they can be used by the NAND controller driver. Add an entry for EBI2_AON_CLK in the gcc-ipq806x DT binding document. Signed-off-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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- 01 Apr, 2015 2 commits
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Fabian Frederick authored
of_device_id is always used as const. (See driver.of_match_table and open firmware functions) __initdata updated to __initconst for static const struct of_device_id ti_clkdm_match_table[] Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Paul Walmsley authored
Most Linux clock framework discussions take place on the linux-kernel@vger.kernel.org or linux-arm-kernel@lists.infradead.org mailing lists. The volume of unrelated messages on these lists makes it difficult for non-maintainers to follow along with discussions. Switch the discussion list for clock framework discussions to linux-clk@vger.kernel.org. Also, add linux-clk@vger.kernel.org as a mailing list for clock API discussions. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Cc: Prashant Gaikwad <pgaikwad@nvidia.com> Cc: Tero Kristo <t-kristo@ti.com> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
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- 30 Mar, 2015 2 commits
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Tomasz Figa authored
Add clock controller for CMU ISP clock domain on Exynos3250, providing clocks for FIMC-IS subsystem. [b.michalska: use samsung_cmu_register_one to register the provider; updated DT binding documentation] Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Beata Michalska <b.michalska@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> [s.nawrocki: added __init attribute which was missing in function exynos3250_cmu_platform_init() in function, which has been] Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
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Inha Song authored
This patch add CLKOUT driver support for Exynos3250 SoC. Exynos3250 SoC PMU_DEBUG is the same with Exynos4's PMU_DEBUG including CLKOUT mux. So we can use the exynos4's clkout init function for Exynos3250 without the need to add new function. Signed-off-by: Inha Song <ideal.song@samsung.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
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- 27 Mar, 2015 5 commits
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Krzysztof Kozlowski authored
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Krzysztof Kozlowski authored
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Krzysztof Kozlowski authored
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Replace doubled const in the arrays of clock names with proper const pointer to const data. This fixes the warnings: drivers/clk/clk-si5351.c:71:25: warning: duplicate const drivers/clk/clk-si5351.c:74:25: warning: duplicate const drivers/clk/clk-si5351.c:77:25: warning: duplicate const drivers/clk/clk-si5351.c:80:25: warning: duplicate const Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Fengguang Wu authored
drivers/clk/qcom/clk-pll.c:74:1-4: WARNING: end returns can be simpified Simplify a trivial if-return sequence. Possibly combine with a preceding function call. Generated by: scripts/coccinelle/misc/simple_return.cocci Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Stephen Boyd authored
These frequency tables list the wrong rates. Either they don't have the correct frequency at all, or they're specified in kHz instead of Hz. Fix it. Fixes: c99e515a "clk: qcom: Add IPQ806X LPASS clock controller (LCC) driver" Tested-by: Kenneth Westfield <kwestfie@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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- 25 Mar, 2015 3 commits
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Michael Turquette authored
Merge tag 'sunxi-clocks-for-4.1' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next Allwinner clocks changes for 4.1 The usual round of clock changes for the Allwinner SoCs. There is nothing really standing out here, but a few changes and fixes, most notably to allow the AHB clock to be parented to a PLL, instead of the CPU clock to avoid any AHB rate change due to cpufreq.
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Chen-Yu Tsai authored
The pll6 has a /4 output that is used as an input to the ahb mux clock. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Chen-Yu Tsai authored
The current sunxi clock driver has the base factor clock of divs clocks as the last clock output of the clock node. This makes it rather difficult to add new outputs, such as fixed dividers, which were previously unknown. This patch makes the divs clocks data structure specify which output is the factor clock, and updates all current divs clocks accordingly. We can then add new outputs after the factor clocks, at least not breaking backward compatibility with regards to the devicetree bindings. Also replace kzalloc with kcalloc in sunxi_divs_clk_setup(). Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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- 24 Mar, 2015 7 commits
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Michael Turquette authored
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Tony Lindgren authored
Since we have a fractional divider for the synthesizer, just implement a simple multiply logic for the PLL. It seems the PLL divider needs to have also the multiplier set for the PLL to lock. At least I have not yet figured out if divided rates are doable. So let's just ignore the PLL divider for now as the synthesizer has both integer and fractional dividers so we don't even need to use the PLL divider for the rates we know work with PLL locking. Cc: Brian Hutchinson <b.hutchman@gmail.com> Cc: Matthijs van Duin <matthijsvanduin@gmail.com> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
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Tony Lindgren authored
We can pretty much get any rate out of the FAPLL because of the fractional divider. Let's first try just adjusting the post divider, and if that is not enough, then reprogram both the fractional divider and the post divider. Let's also add a define for the fixed SYNTH_PHASE_K instead of using 8. Cc: Brian Hutchinson <b.hutchman@gmail.com> Cc: Matthijs van Duin <matthijsvanduin@gmail.com> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
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Tony Lindgren authored
We need to round the calculated value to have it match the requested rate. While at it, let's fix a typo and use a define for SYNTH_MAX_DIV_M as we will need it in later patches for set_rate. And let's remove two unused includes. Cc: Brian Hutchinson <b.hutchman@gmail.com> Cc: Matthijs van Duin <matthijsvanduin@gmail.com> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
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Suman Anna authored
The OMAP DMTimer API, omap_dm_timer_set_source(), uses the clock name timer_sys_ck for setting a timer's clock source for the source index OMAP_TIMER_SRC_SYS_CLK. There is currently no clock alias data for the Timers 13 through 16 for this clock name, so add the same. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
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Suman Anna authored
The OMAP DMTimer API, omap_dm_timer_set_source(), can set the parent of a timer node using 3 different values that use fixed parent names for the clocks. The parent name, timer_sys_ck, is used for setting the parent when used with the source index OMAP_TIMER_SRC_SYS_CLK. This should point to the TIMER_SYS_CLK and not the SYSCLKIN2, so correct the clock aliases appropriately. SYSCLKIN2 is not a mandatory clock input. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
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Suman Anna authored
The DT clock aliases for Timers use the legacy (non-DT) device names and a source clock named sys_ck. OMAP5 is DT-boot only, so correct the DT clock aliases to use the DT device names instead. Also, the source clock name is corrected from 'sys_ck' to 'timer_sys_ck', the name used by the OMAP dmtimer driver. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
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