DSI specific RCG clocks required customized clk_ops. There are
a total of 4 RCGs per DSI block: DSI, BYTE, ESC and PIXEL.
There are a total of 2 clocks coming from the DSI PLL, which serve as
inputs to these RCGs. The BYTE and ESC RCGs are fed by one of the
post dividers of DSI1 or DSI2 PLLs, and the DSI and PIXEL RCGs are fed by
another divider of the PLL.
In each of the 2 groups above, only one of the clocks sets its parent.
These are BYTE RCG and DSI RCG for each of the groups respectively, as
shown in the diagram below.
The DSI and BYTE RCGs serve as bypass clocks. We create a new set of ops
clk_rcg_bypass2_ops, which are like the regular bypass ops, but don't
take in a freq table, since the DSI driver using these clocks is
parent-able.
The PIXEL RCG needs to derive the required pixel clock using dsixpll.
It parses a m/n frac table to retrieve the correct clock.
The ESC RCG doesn't have a frac M/N block, it can just apply a pre-
divider. Its ops simply check if the required clock rate can be
achieved by the pre-divider.
+-------------------+
| |---dsixpllbyte---o---> To byte RCG
| | | (sets parent rate)
| | |
| | |
| DSI 1/2 PLL | |
| | o---> To esc RCG
| | (doesn't set parent rate)
| |
| |----dsixpll-----o---> To dsi RCG
+-------------------+ | (sets parent rate)
( x = 1, 2 ) |
|
o---> To pixel rcg
(doesn't set parent rate)
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
8960 family of devices have TSENS as part of GCC in hardware.
Hence DT would represent a GCC node with GCC properties as well
as TSENS. Create a virtual platform child device here for TSENS
so the driver can probe it and use the parent (GCC) to extract DT
properties.
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
[sboyd@codeaurora.org: Massaged to work with devm friendly
qcom_cc_probe()]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Having this hidden config below the COMMON_CLK_QCOM config causes
menuconfig to stop indenting config items after it.
<*> Support for Qualcomm's clock controllers
{M} APQ8084 Global Clock Controller
<M> APQ8084 Multimedia Clock Controller
{M} IPQ806x Global Clock Controller
<M> IPQ806x LPASS Clock Controller
<M> MSM8660 Global Clock Controller
<M> MSM8916 Global Clock Controller
{M} APQ8064/MSM8960 Global Clock Controller
<M> APQ8064/MSM8960 LPASS Clock Controller
<M> MSM8960 Multimedia Clock Controller
{M} MSM8974 Global Clock Controller
<M> MSM8974 Multimedia Clock Controller
Move it up above anything else so that we don't get odd
indenting.
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Now that qcom_cc_remove() is a nop, drop calls to
qcom_cc_remove() and any empty driver remove functions.
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Some APIs in qcom_cc_probe() don't have a devm counterpart, so we
have to use the calling device's platform data to pass pointers
to the remove path. Let's use devm_add_action() instead, so that
the remove path doesn't need to do anything, allowing us to
remove qcom_cc_remove() entirely.
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The oxili_cx GDSC is inside the power domain of the oxili GDSC.
Add the dependency so that the CX domain can properly power up.
Reported-by: Rob Clark <robdclark@gmail.com>
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add support for the msm8916 audio clocks. This includes core bus,
low-power audio and codec clocks. They are required for audio playback.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add support for the msm8916 BIMC (Bus Integrated Memory Controller)
clocks that are needed for GPU.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Some root clock generators may have child branches that are controlled
by different CPUs. These RCGs require some special operations:
- some enable bits have to be toggled when we set the rate;
- if RCG is disabled we only cache the rate and set it later when enabled;
- when the RCG is disabled, the mux is set to the safe source;
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
[sboyd@codeaurora.org: Simplify recalc_rate implementation]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add support for the msm8916 TCU (Translation Control Unit) clocks that
are needed for IOMMU.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add the GDSC instances that exist as part of apq8084 MMCC block.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add the GDSC instances that exist as part of apq8084 GCC block
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add the GDSC instances that exist as part of msm8974 MMCC block
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
There's just one GDSC as part of the msm8974 GCC block.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add all data for the GDSCs which are part of msm8916 GCC block.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Certain devices can have GDSCs' which support ON as the only state.
They can't be power collapsed to either hit RET or OFF.
The clients drivers for these GDSCs' however would expect the state
of the core to be reset following a GDSC disable and re-enable.
To do this assert/deassert reset lines every time the client
driver would request the GDSC to be powered on/off instead.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Along with the GDSC power switch, there is additional control
to either retain all memory (core and peripheral) within a given
powerdomain or to turn them off while the GDSC is powered down.
Add support for these by modelling a RET state where all
memory is retained and an OFF state where all memory gets turned
off.
The controls provided are granular enough to be able to support
various differnt levels of RET states, like a 'shallow RET' with all memory
retained and a 'deep RET' with some memory retained while some others
are lost. The current patch does not support this and considers
just one RET state where all memory is retained. Futher work, if
needed can support multiple different levels of RET state.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The common clk probe registers a clk provider and a reset controller.
Update it to register a genpd provider using the gdsc data provided
by each platform.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
GDSCs (Global Distributed Switch Controllers) are responsible for
safely collapsing and restoring power to peripherals in the SoC.
These are best modelled as power domains using genpd and given
the registers are scattered throughout the clock controller register
space, its best to have the support added through the clock driver.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Sometimes the display driver may want to change the parent PLL of
the display clocks (byte and pixel clocks) depending on the
use-case. Currently the parent is fixed by means of having a
frequency table with one entry that chooses a particular parent.
Remove this restriction and use the parent the clock is
configured for in the hardware during clk_set_rate(). This
requires consumers to rely on the default parent or to configure
the parent with clk_set_parent()/assigned-clock-parents on the
clocks before calling clk_set_rate().
Tested-by: Archit Taneja <architt@codeaurora.org>
Cc: Hai Li <hali@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Fix the enable bit of the pseudorandom number generator clock.
Reported-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Fixes: 3966fab8b6 "clk: qcom: Add MSM8916 Global Clock Controller support"
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Use the provider based method to get a clock's name so that we
can get rid of the clk member in struct clk_hw one day. Mostly
converted with the following coccinelle script.
@@
struct clk_hw *E;
@@
-__clk_get_name(E->clk)
+clk_hw_get_name(E)
Acked-by: Heiko Stuebner <heiko@sntech.de>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kevin Cernekee <cernekee@chromium.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
We're removing struct clk from the clk provider API, so switch
this code to using the clk_hw based provider APIs.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Mostly converted with the following snippet:
@@
struct clk_hw *E;
@@
-__clk_get_flags(E->clk)
+clk_hw_get_flags(E)
Acked-by: Tero Kristo <t-kristo@ti.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The missing license causes the clk-qcom.ko module to taint the
kernel. Add the appropriate license to avoid taint.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* cleanup-clk-h-includes: (62 commits)
clk: Remove clk.h from clk-provider.h
clk: h8300: Remove clk.h and clkdev.h includes
clk: at91: Include clk.h and slab.h
clk: ti: Switch clk-provider.h include to clk.h
clk: pistachio: Include clk.h
clk: ingenic: Include clk.h
clk: si570: Include clk.h
clk: moxart: Include clk.h
clk: cdce925: Include clk.h
clk: Include clk.h in clk.c
clk: zynq: Include clk.h
clk: ti: Include clk.h
clk: sunxi: Include clk.h and remove unused clkdev.h includes
clk: st: Include clk.h
clk: qcom: Include clk.h
clk: highbank: Include clk.h
clk: bcm: Include clk.h
clk: versatile: Remove clk.h and clkdev.h includes
clk: ux500: Remove clk.h and clkdev.h includes
clk: tegra: Properly include clk.h
...
The other ce clocks have the flag set, but ce1 doesn't, so
clk_set_rate() doesn't propagate up the tree to the ce1_src_clk.
Set the flag as this is supported.
Reported-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Tested-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Fixes: 0282465320 ("clk: qcom: Add APQ8084 Global Clock Controller support")
Fixes: d33faa9ead ("clk: qcom: Add support for MSM8974's global clock controller (GCC)")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Clock rates are stored in an unsigned long field, but ->determine_rate()
(which returns a rounded rate from a requested one) returns a long
value (errors are reported using negative error codes), which can lead
to long overflow if the clock rate exceed 2Ghz.
Change ->determine_rate() prototype to return 0 or an error code, and pass
a pointer to a clk_rate_request structure containing the expected target
rate and the rate constraints imposed by clk users.
The clk_rate_request structure might be extended in the future to contain
other kind of constraints like the rounding policy, the maximum clock
inaccuracy or other things that are not yet supported by the CCF
(power consumption constraints ?).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
CC: Jonathan Corbet <corbet@lwn.net>
CC: Tony Lindgren <tony@atomide.com>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: "Emilio López" <emilio@elopez.com.ar>
CC: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
CC: Peter De Schrijver <pdeschrijver@nvidia.com>
CC: Prashant Gaikwad <pgaikwad@nvidia.com>
CC: Stephen Warren <swarren@wwwdotorg.org>
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Alexandre Courbot <gnurou@gmail.com>
CC: linux-doc@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
CC: linux-omap@vger.kernel.org
CC: linux-mips@linux-mips.org
CC: linux-tegra@vger.kernel.org
[sboyd@codeaurora.org: Fix parent dereference problem in
__clk_determine_rate()]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
[sboyd@codeaurora.org: Folded in fix from Heiko for fixed-rate
clocks without parents or a rate determining op]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add support for SR2 type pll operations. SR2 is optimized for Time Interval
Error (TIE) or absolute jitter.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Make const both the array and the strings, so they can be
moved to .rodata section.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Since the parent rate has been recalculated, pixel RCG clock
should rely on it to find the correct M/N values during set_rate,
instead of calling __clk_round_rate() to its parent again.
Signed-off-by: Hai Li <hali@codeaurora.org>
Tested-by: Archit Taneja <architt@codeaurora.org>
Fixes: 99cbd064b0 ("clk: qcom: Support display RCG clocks")
[sboyd@codeaurora.org: Silenced unused parent variable warning]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add the NSS/GMAC clocks and the TCM clock and NSS resets.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The gfx3d_clk_src parents configuration is incorrect. Fix it.
Fixes: 3966fab8b6 "clk: qcom: Add MSM8916 Global Clock Controller support"
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
One of the video codec clock frequencies has incorrect divider
value. Fix it.
Fixes: 3966fab8b6 "clk: qcom: Add MSM8916 Global Clock Controller support"
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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>
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>
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>
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>
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: c99e515a92 "clk: qcom: Add IPQ806X LPASS clock controller (LCC) driver"
Tested-by: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This patch adds support for the global clock controller found on the MSM8916
based devices. It allows the various device drivers to probe and control
their clocks and resets.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
[sboyd@codeaurora.org: Removed NULL entry from parent_maps]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
In the current parent mapping code, we can get duplicate or inconsistent
indexes, which leads to discrepancy between the number of elements in the
array and the number of parents. Until now, this was solved with some
reordering but this is not always possible.
This patch introduces index tables that are used to define the relations
between the PLL source and the hardware mux configuration value.
To accomplish this, here we do the following:
- Define a parent_map struct to map the relations between PLL source index
and register configuration value.
- Add a qcom_find_src_index() function for finding the index of a clock
matching the specific PLL configuration.
- Update the {set,get}_parent RCG functions use the newly introduced
parent_map struct.
- Convert all existing drivers to the new parent_map tables.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Currently configure_bank() returns void. Add some error
checking on the regmap calls and propagate if there is
any error.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
According to the common clock framework API, the clk_get_parent() function
should return u8. Currently we are returning negative values on error. Fix
this and use the default parent in case of an error.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Currently, a RCG's M/N counter (used for fraction division) is
set to either 'bypass' (counter disabled) or 'dual edge' (counter
enabled) based on whether the corresponding rcg struct has a mnd
field specified and a non-zero N.
In the case where M and N are the same value, the M/N counter is
still enabled by code even though no division takes place.
Leaving the RCG in such a state can result in improper behavior.
This was observed with the DSI pixel clock RCG when M and N were
both set to 1.
Add an additional check (M != N) to enable the M/N counter only
when it's needed for fraction division.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Fixes: bcd61c0f53 (clk: qcom: Add support for root clock
generators (RCGs))
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The ahbix clock can never be turned off in practice. To change the
rates we need to switch the mux off the M/N counter to an always on
source (XO), reprogram the M/N counter to get the rate we want and
finally switch back to the M/N counter. Add a new ops structure
for this type of clock so that we can set the rate properly.
Fixes: c99e515a92 "clk: qcom: Add IPQ806X LPASS clock controller (LCC) driver"
Tested-by: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
PXO is 25MHz, not 27MHz. Fix the table.
Fixes: 24d8fba44a "clk: qcom: Add support for IPQ8064's global
clock controller (GCC)"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Andy Gross <agross@codeaurora.org>
Tested-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
drivers/clk/qcom/lcc-msm8960.c:577:3-8: No need to set .owner here. The core will do it.
Remove .owner field if calls are used which set it automatically
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
drivers/clk/qcom/lcc-ipq806x.c:465:3-8: No need to set .owner here. The core will do it.
Remove .owner field if calls are used which set it automatically
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
CC: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
This clock is needed for most audio clock frequencies. Add it.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
regmap_read() returns 0 on success, not the value of the register
that is read. Fix it so we properly detect the frequency plan.
Fixes: b82875ee07 "clk: qcom: Add MSM8960/APQ8064 LPASS clock
controller (LCC) driver"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
These shifts were copy/pasted from the pcm which is a different
size RCG. Use the correct offsets so that slimbus rates are
correct.
Fixes: b82875ee07 "clk: qcom: Add MSM8960/APQ8064 LPASS clock controller (LCC) driver"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Adds a way for clock consumers to set maximum and minimum rates. This
can be used for thermal drivers to set minimum rates, or by misc.
drivers to set maximum rates to assure a minimum performance level.
Changes the signature of the determine_rate callback by adding the
parameters min_rate and max_rate.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[sboyd@codeaurora.org: set req_rate in __clk_init]
Signed-off-by: Michael Turquette <mturquette@linaro.org>
[mturquette@linaro.org: min/max rate for sun6i_ahb1_clk_determine_rate
migrated clk-private.h changes to clk.c]
Add an LCC driver for MSM8960/APQ8064 that supports the i2s,
slimbus, and pcm clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Add an LCC driver for IPQ806x that supports the i2s, S/PDIF, and
pcm clocks.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
[sboyd@codeaurora.org: Reworded commit text, added Kconfig
select, fleshed out Kconfig description a bit more, added pll4
configuration and reworked probe for it, added muxes, split out
dt-binding file]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Add support for muxes that use regmap instead of readl/writel
directly. We don't support as many features as clk-mux.c, but
this is good enough to support getting and setting parents.
Adding a table based lookup can be added in the future if needed.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Add support for dividers that use regmap instead of readl/writel.
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
[sboyd@codeaurora.org: Switch to using generic divider code, drop
enable/disable, reword commit text]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
much later than usual due to several last minute bugs that had to be
addressed. As usual the majority of changes are new drivers and
modifications to existing drivers. The core recieved many fixes along
with the groundwork for several large changes coming in the future which
will better parition clock providers from clock consumers.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=jD84
-----END PGP SIGNATURE-----
Merge tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux
Pull clk framework updates from Mike Turquette:
"This is much later than usual due to several last minute bugs that had
to be addressed. As usual the majority of changes are new drivers and
modifications to existing drivers. The core recieved many fixes along
with the groundwork for several large changes coming in the future
which will better parition clock providers from clock consumers"
* tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated
ARM: OMAP3: clock: fix boot breakage in legacy mode
ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs
clk: Really fix deadlock with mmap_sem
clk: mmp: fix sparse non static symbol warning
clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
clk: change clk_debugfs_add_file to take a struct clk_hw
clk: Don't expose __clk_get_accuracy
clk: Don't try to use a struct clk* after it could have been freed
clk: Remove unused function __clk_get_prepare_count
clk: samsung: Fix double add of syscore ops after driver rebind
clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
clk: samsung: remove unnecessary inclusion of header files from clk.h
clk: samsung: remove unnecessary CONFIG_OF from clk.c
clk: samsung: Spelling s/bwtween/between/
clk: rockchip: Add support for the mmc clock phases using the framework
clk: rockchip: add bindings for the mmc clocks
clk: rockchip: rk3288 export i2s0_clkout for use in DT
clk: rockchip: use clock ID for DMC (memory controller) on rk3288
...
Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes, just
removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There are
some ath9k patches coming in through this tree that have been acked by
the wireless maintainers as they relied on the debugfs changes.
Everything has been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iEYEABECAAYFAlSOD20ACgkQMUfUDdst+ylLPACg2QrW1oHhdTMT9WI8jihlHVRM
53kAoLeteByQ3iVwWurwwseRPiWa8+MI
=OVRS
-----END PGP SIGNATURE-----
Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.
Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev_<level>_once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
This is in preparation for clock providers to not have to deal with struct clk.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
There is a duplication in a clock name for apq8084 platform that causes
the following warning: "RBCPR_CLK_SRC" redefined
Resolve this by adding a MMSS_ prefix to this clock and making its name
coherent with msm8974 platform.
Fixes: 2b46cd23a5 ("clk: qcom: Add APQ8084 Multimedia Clock Controller (MMCC) support")
Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Some fixes for the IPQ driver and some code consolidation
and refactoring.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=fPIM
-----END PGP SIGNATURE-----
Merge tag 'qcom-clocks-for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into clk-next
qcom clock changes for 3.18
Some fixes for the IPQ driver and some code consolidation
and refactoring.
There is no need to init .owner field.
Based on the patch from Peter Griffin <peter.griffin@linaro.org>
"mmc: remove .owner field for drivers using module_platform_driver"
This patch removes the superflous .owner field for drivers which
use the module_platform_driver API, as this is overriden in
platform_driver_register anyway."
Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
The banked MD RCGs in global clock control have a different
register layout than the ones implemented in multimedia clock
control. Add support for these types of clocks so we can change
the rates of the UBI32 clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
There are two find_freq() functions in clk-rcg.c and clk-rcg2.c
that are almost exactly the same. Consolidate them into one
function to save on some code space.
Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This patch adds the PLL0 that is required for the USB clocks to
work properly.
Signed-off-by: Andy Gross <agross@codeaurora.org>
Fixes: 24d8fba44a "clk: qcom: Add support for IPQ8064's global clock controller (GCC)"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The pre-divider for the sdc clocks only has 2 bits in it, so we
can't possibly divide by anything larger than 4 here.
Furthermore, we program the value of ~(n - m) and the n value is
larger than 8 bits (max of 256). Replace this entry with 200kHz
which is close enough to 144kHz to be usable.
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Andy Gross <agross@codeaurora.org>
Fixes: 24d8fba44a "clk: qcom: Add support for IPQ8064's global clock controller (GCC)"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
These patches add support for a handful of Qualcomm's SoC clock
controllers: APQ8084 gcc and mmcc, IPQ8064 gcc, and APQ8064.
There's also a small collection of bug fixes that aren't critical
-rc worthy regressions because the consumer drivers aren't present
or using the buggy clocks and one optimization for HDMI.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=azpb
-----END PGP SIGNATURE-----
Merge tag 'qcom-clocks-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into clk-next-msm
qcom clock changes for 3.17
These patches add support for a handful of Qualcomm's SoC clock
controllers: APQ8084 gcc and mmcc, IPQ8064 gcc, and APQ8064.
There's also a small collection of bug fixes that aren't critical
-rc worthy regressions because the consumer drivers aren't present
or using the buggy clocks and one optimization for HDMI.
The APQ8064 multimedia clock controller is fairly similar to the
8960 multimedia clock controller, except that gfx2d0/1 has been
removed and the gfx3d frequency is slightly faster when using the
newly introduced PLL15. We also add vcap clocks and a couple new
TV clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Some SR type PLLs need to be configured for a certain rate when
linux boots. Add support for these types of PLLs so that we can
program PLL15's rate on apq8064.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The mdp_lut_clk isn't a child of the mdp_clk. Instead it's the
child of the mdp_src clock. Fix it.
Fixes: 6d00b56fe "clk: qcom: Add support for MSM8960's multimedia clock controller (MMCC)"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Sometimes we need to program PLLs with a fixed rate
configuration during driver probe. Doing this after we register
the PLLs with the clock framework causes the common clock
framework to assume the rate of the PLLs are 0. This causes all
sorts of problems for rate recalculations because the common
clock framework caches the rate once at registration time unless
a flag is set to always recalculate the rates.
Split the qcom_cc_probe() function into two pieces, map and
everything else, so that drivers which need to configure some
PLL rates or otherwise twiddle bits in the clock controller can
do so before registering clocks. This allows us to properly
detect the rates of PLLs that are programmed at boot.
Fixes: 49fc825f0c "clk: qcom: Consolidate common probe code"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Clocks that don't have a pre-divider don't list any pre-divider
in their frequency tables, but their tables are initialized using
aggregate initializers. Use tagged initializers so we properly
assign the m and n values for each frequency. Furthermore, the
mmcc_pxo_pll8_pll2_pll3 array improperly mapped the second
element to pll2 instead of pll8, causing the clock driver to
recalculate the wrong rate for any clocks using this array along
with a rate that uses pll2. Plus the .num_parents field is 3
instead of 4 so you can't even switch the parent to pll3. Finally
I noticed that the jpegd clock improperly indicates that the
pre-divider width is only 2, when it's actually 4 bits wide.
Fixes: 6d00b56fe "clk: qcom: Add support for MSM8960's multimedia clock controller (MMCC)"
Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
In the case of HDMI clocks, we want to bypass the RCG's ability
to divide the output clock and pass through the parent HDMI PLL
rate. Add a simple set of clk_ops to configure the RCG to do
this. This removes the need to keep adding more frequency entries
to the tv_src clock whenever we want to support a new rate.
Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add a driver for the global clock controller found on IPQ8064 based
platforms. This should allow most non-multimedia device drivers to probe
and control their clocks.
This is currently missing clocks for USB HSIC and networking devices.
Signed-off-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add support for the multimedia clock controller found on the APQ8084
based platforms. This will allow the multimedia device drivers to
control their clocks.
Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
[sboyd: Rework parent mapping to avoid conflicts]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Add the necessary clocks for SATA, PCIe and UFS to the
APQ8084 global clock controller (GCC). This will allow
the above device drivers to control their clocks.
Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This patch adds support for the global clock controller found on
the APQ8084 based devices. This includes UART, I2C, SPI etc.
Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This patch adds clocks necessary for SD card controller on apq8064 SOC.
Without this patch the clocks are not visible to the sdcc driver.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The HDMI PLL input to the tv mux is supposed to be 3, not 2. Fix
the code so that we can properly select the HDMI PLL.
Fixes: 6d00b56fe "clk: qcom: Add support for MSM8960's multimedia clock controller (MMCC)"
Reported-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Not all clocks are implemented but client drivers can still
request them. Currently we will return a NULL pointer to them if
the clock isn't implemented in software but NULL pointers are
valid clock pointers. Return an error pointer so that driver's
don't proceed without a clock they may actually need.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
A new PLL (gpll4) is added on msm8974 PRO devices to support a
faster sdc1 clock rate. Add support for this and the two new sdcc
cal clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
The display clocks all source from dedicated phy PLLs within their
respective multimedia hardware block. Hook up these PLLs to the
display clocks with the appropriate parent mappings, clock flags,
and the appropriate clock ops. This should allow the display
clocks to work once the appropriate phy PLL driver registers their
PLL clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add support for the DSI/EDP/HDMI RCG clocks. With the proper
display driver in place this should allow us to support display
clocks on msm8974 based devices.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Some drivers may want to call clk_set_rate() with a very large
number to force the clock to go as fast as it possibly can
without having to know the range between the highest rate and
second highest rate. Add support for this by defaulting to the
highest rate in the frequency table if we can't find a frequency
greater than what is requested.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
We forgot to add the status bit for the PLLs and we were using
the wrong register and masks for configuration, leading to
unexpected PLL configurations. Fix this.
Fixes: d8b212014e (clk: qcom: Add support for MSM8974's multimedia clock controller (MMCC))
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
If the bit is set the clock is off so we should be checking for
a clear bit, not a set bit. Invert the logic.
Fixes: bcd61c0f53 (clk: qcom: Add support for root clock generators (RCGs))
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
The address of the blsp2_ahb_clk register is incorrect. Fix it.
Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
When consolidating the msm8660 GCC probe code I forgot to keep
around these temporary clock registrations. Put them back so the
clock tree is not entirely orphaned.
Fixes: 49fc825f0c (clk: qcom: Consolidate common probe code)
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
The APQ8064 and MSM8960 share a significant amount of clock data and
code between the two SoCs. Rather than duplicating the data we just add
support for a unqiue APQ8064 clock table into the MSM8960 code.
For now add just enough clocks to get a basic serial port going on an
APQ8064 device.
Signed-off-by: Kumar Gala <galak@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: trivial conflict due to missing ipq8064 support]
Most of the probe code is the same between all the different
clock controllers. Consolidate the code into a common.c file.
This makes changes to the common probe parts easier and reduces
chances for bugs.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
According to Documentation/kbuild/makefiles.txt these symbols
should be clk-qcom-y. Otherwise the build will fail if
CONFIG_COMMON_CLK_QCOM=m. Fix it.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add a driver for the global clock controller found on MSM8660
based platforms. This should allow most non-multimedia device
drivers to probe and control their clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add a driver for the global clock controller found on MSM 8974
based platforms. This should allow most multimedia device drivers
to probe and control their clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add a driver for the global clock controller found on MSM 8974
based platforms. This should allow most non-multimedia device
drivers to probe and control their clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add a driver for the multimedia clock controller found on MSM
8960 based platforms. This should allow multimedia device drivers
to probe and control their clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add a driver for the global clock controller found on MSM8960
based platforms. This should allow most non-multimedia device
drivers to probe and control their clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Reset controllers and clock controllers are combined into one IP
block on Qualcomm chipsets. Usually a reset signal is associated
with each clock branch but sometimes a reset signal is associated
with a handful of clocks. Either way the register interface is
the same; set a bit to assert a reset and clear a bit to deassert
a reset. Add support for these types of resets signals.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add support for the root clock generators on Qualcomm devices.
RCGs are highly customizable mux/divider/counter clocks that can
be used to generate almost any rate desired given some input
source that is faster than the desired rate.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add support for Qualcomm's PLLs (phase locked loops). This is
sufficient enough to be able to determine the rate the PLL is
running at. We can add rate setting support later when it's
needed.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Add a clock type that associates a regmap pointer and some
enable/disable bits with a clk_hw struct. This will be the struct
that a hw specific implementation wraps if it wants to use the
regmap helper functions.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
