Commit Graph

57 Commits

Author SHA1 Message Date
Lothar Waßmann
7196c52c93 clk: imx6q: fix typo in CAN clock definition
commit ee36027427 ("clk: imx: Add clock support for imx6qp")
introduced a regression due to a subtle typo in the 'can_root' clock
definition. The effect is that trying to configure the bitrate of the
can interfaces fails with -EDOM or produces a division by zero error
due to the clock_freq of the can serial clock being reported as '0'.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Fixes: ee36027427 ("clk: imx: Add clock support for imx6qp")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-04-13 15:27:15 +08:00
Stephen Boyd
38c7035f9c clk: imx: Remove CLK_IS_ROOT
This flag is a no-op now. Remove usage of the flag.

Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-02 17:44:26 -08:00
Stephen Boyd
5788923b27 Merge tag 'imx-clk-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-next
Pull i.MX clk updates from Shawn Guo:

The i.MX clock update for 4.6:
- Add the clock driver support for the latest i.MX6 family SoCs
  addition - i.MX6QP.
- Clean up the whitespace in i.MX6UL clock driver and add the missing
  KPP clock.
- Correct pwm7 clock name in i.MX6UL clock driver.

* tag 'imx-clk-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  clk: imx: add kpp clock for i.MX6UL
  clk: imx: whitespace cleanup; no functional change
  clk: imx: correct pwm7 clock name in driver for i.MX6UL
  clk: imx: Add clock support for imx6qp
2016-03-02 14:31:47 -08:00
Lothar Waßmann
f6c3aec2f7 clk: imx: add kpp clock for i.MX6UL
Add the necessary clock to use the KPP interface on i.MX6UL.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-28 10:45:29 +08:00
Lothar Waßmann
9797d81936 clk: imx: whitespace cleanup; no functional change
remove whitespace before TAB.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-28 10:45:13 +08:00
Anatolij Gustschin
81a467efe3 clk: imx: correct pwm7 clock name in driver for i.MX6UL
Don't capitalize p in the pwm7 clock name.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-18 22:25:19 +08:00
Bai Ping
ee36027427 clk: imx: Add clock support for imx6qp
most of the clock tree structures on i.MX6 Quad Plus are
same as on i.MX6Q. there still some differences between
these two SOCs. compared to the i.XM6Q, the differents of
clocks on i.MX6QP is mainly on:

1. New clock gate added to support the PRE and PRG modules
2. 24MHz OSC clock option added to the UART, IPG, ECSPI, and
   CAN clock roots.
3. MMDC channel 1 clock gate is now controllable.
4. clock gating added to the LDB_DIx_IPU clocks on i.MX6QP
5. EMI clock root divider fix
6. other updates fo CSCMRx, CSCDRx and CS2CDR registers.

detailed infomation, please refer to the i.MX6QP RM.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-14 11:06:29 +08:00
Geliang Tang
5fd9c05c84 clk: move the common clock's to_clk_*(_hw) macros to clk-provider.h
to_clk_*(_hw) macros have been repeatedly defined in many places.
This patch moves all the to_clk_*(_hw) definitions in the common
clock framework to public header clk-provider.h, and drop the local
definitions.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-01-29 12:59:50 -08:00
Michael Turquette
b8f15e7119 Merge commit 'fe5fa8fbd4d47f40a45fa29ee1abdb10cb061ec2' into clk-next 2015-12-22 11:57:35 -08:00
Michael Turquette
fcd5ac1a41 Merge tag 'imx-clk-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-next
The i.MX clock updates for 4.5:
- Add is_prepared function callback for pllv3 clock driver
- Use imx_check_clocks() on imx6ul and imx7d clock drivers to save
  some code
- Add a core clock for imx7d to support generic cpufreq driver
- Support imx6q clock routing with OSC to anaclk2/2b
- To support more precise pixel clocks on imx5, allow ipu_di_sel clock
  selectors to influence the PLLs that they are derived from
- A cleanup on imx25 OSC clock
2015-12-22 11:57:34 -08:00
Linus Torvalds
097b285d32 ARM: SoC fixes for 4.4-rc
Here are a bunch of small bug fixes for various ARM platforms, nothing
 really sticks out this week, most of either fixes bugs in code that was
 just added in 4.4, or that has been broken for many years without anyone
 noticing.
 
 at91/sama5d2
 - fix sama5de hardware setup of sd/mmc interface
 - proper selection of pinctrl drivers. PIO4 is necessary for sama5d2
 
 berlin
 - fix incorrect clock input for SDIO
 
 exynos
 - Fix potential NULL pointer dereference in Exynos PMU driver.
 
 imx
 - Fix vf610 SAI clock configuration bug which is discovered by
   the newly added master mode support in SAI audio driver.
 - Fix buggy L2 cache latency values in vf610 device trees, which may
   cause system hang when cpu runs at a higher frequency.
 
 ixp4xx
 - fix prototypes for readl/writel functions
 
 ls2080a
 - use little-endian register access for GPIO and SDHCI
 
 omap
 - Fix clock source for ARM TWD and global timers on am437x
 - Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of
   when MACH_OMAP3_PANDORA is selected
 - Fix SPI DMA handles for dm816x as only some were mapped
 - Fix up mbox cells for dm816x to make mailbox usable
 
 pxa
 - use PWM lookup table for all ezx machines
 
 s3c24xx
 - Remove incorrect __init annotation from s3c24xx cpufreq driver structures.
 
 versatile
 - fix PCI IRQ mapping on Versatile PB
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Here are a bunch of small bug fixes for various ARM platforms, nothing
  really sticks out this week, most of either fixes bugs in code that
  was just added in 4.4, or that has been broken for many years without
  anyone noticing.

  at91/sama5d2:
   - fix sama5de hardware setup of sd/mmc interface
   - proper selection of pinctrl drivers.  PIO4 is necessary for sama5d2

  berlin:
   - fix incorrect clock input for SDIO

  exynos:
   - Fix potential NULL pointer dereference in Exynos PMU driver.

  imx:
   - Fix vf610 SAI clock configuration bug which is discovered by the
     newly added master mode support in SAI audio driver.
   - Fix buggy L2 cache latency values in vf610 device trees, which may
     cause system hang when cpu runs at a higher frequency.

  ixp4xx:
   - fix prototypes for readl/writel functions

  ls2080a:
   - use little-endian register access for GPIO and SDHCI

  omap:
   - Fix clock source for ARM TWD and global timers on am437x
   - Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of when
     MACH_OMAP3_PANDORA is selected
   - Fix SPI DMA handles for dm816x as only some were mapped
   - Fix up mbox cells for dm816x to make mailbox usable

  pxa:
   - use PWM lookup table for all ezx machines

  s3c24xx:
   - Remove incorrect __init annotation from s3c24xx cpufreq driver
     structures.

  versatile:
   - fix PCI IRQ mapping on Versatile PB"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ls2080a/dts: Add little endian property for GPIO IP block
  dt-bindings: define little-endian property for QorIQ GPIO
  ARM64: dts: ls2080a: fix eSDHC endianness
  ARM: dts: vf610: use reset values for L2 cache latencies
  ARM: pxa: use PWM lookup table for all machines
  ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1
  ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock
  ARM: dts: am4372: fix clock source for arm twd and global timers
  ARM: at91: fix pinctrl driver selection
  ARM: at91/dt: add always-on to 1.8V regulator
  ARM: dts: vf610: fix clock definition for SAI2
  ARM: imx: clk-vf610: fix SAI clock tree
  ARM: ixp4xx: fix read{b,w,l} return types
  irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB
  ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE
  ARM: dts: add dm816x missing spi DT dma handles
  ARM: dts: add dm816x missing #mbox-cells
  cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init
  ARM: EXYNOS: Fix potential NULL pointer access in exynos_sys_powerdown_conf
2015-12-12 16:43:44 -08:00
Patrick Brünn
c20737a2a7 clk: imx5: ipu_di_sel clocks can set parent rates
To obtain exact pixel clocks, allow the DI clock selectors to influence
the PLLs that they are derived from.

Commit 4591b13289 ("ARM: i.MX6: ipu_di_sel clocks can set parent
rates") did this for i.MX6.
Port it to enable high display resolutions on i.MX53 based platforms
such as CX9020 Embedded PC, too.

Signed-off-by: Patrick Brünn <p.bruenn@beckhoff.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-12-02 21:02:33 +08:00
Bai Ping
31cbb57d5a clk: imx: Replace clk error check with imx_check_clocks()
As we already have a 'imx_check_clocks' to do the clock error
check, so cleanup the error check code.

Signed-off-by: Bai Ping <b51503@freescale.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-12-02 14:10:25 +08:00
Bai Ping
fdb868cd05 clk: imx: Add a virtual arm clk on i.mx7d
Add a virtual arm clk to abstract the actual steps
when changing the ARM core frequency.So we can using
the 'cpufreq-dt' driver on i.MX7D/Solo.

Signed-off-by: Bai Ping <b51503@freescale.com>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-12-02 13:34:01 +08:00
Stefan Agner
3b60a26fdc ARM: imx: clk-vf610: fix SAI clock tree
The Synchronous Audio Interface (SAI) instances are clocked by
independent clocks: The bus clock and the audio clock (as shown in
Figure 51-1 in the Vybrid Reference Manual). The clock gates in
CCGR0/CCGR1 for SAI0 through SAI3 are bus clock gates, as access
tests to the registers with/without gating those clocks have shown.
The audio clock is gated by the SAIx_EN gates in CCM_CSCDR1,
followed by a clock divider (SAIx_DIV). Currently, the parent of
the bus clock gates has been assigned to SAIx_DIV, which is not
involved in the bus clock path for the SAI instances (see chapter
9.10.12, SAI clocking in the Vybrid Reference Manual).

Fix this by define the parent clock of VF610_CLK_SAIx to be the bus
clock.

If the driver needs the audio clock (when used in master mode), a
fixed device tree is required which assign the audio clock properly
to VF610_CLK_SAIx_DIV.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-12-02 09:46:26 +08:00
Nicolas Pitre
0d2681e1f1 imx/clk-pllv2: fix wrong do_div() usage
do_div() is meant to be used with an unsigned dividend.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-11-30 12:58:38 -08:00
Nicolas Pitre
741e96e879 imx/clk-pllv1: fix wrong do_div() usage
do_div() is meant to be used with an unsigned dividend.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-11-30 12:58:35 -08:00
Michael Trimarchi
2e133f6188 clk: imx: clk-imx6q: Let OSC to be routed to anaclk2/2b
OSC can be used as USB hub source clock. An example we can route to
CLK2_P imx6 pin.

This show a usage example:

[...]
	usb_hub: usb-hub {
		compatible = "smsc,usb3503a";
		clocks = <&clks IMX6QDL_CLK_LVDS2_GATE>;
		clock-names = "refclk";
	};
};

[...]
&clks {
        assigned-clocks = <&clks IMX6QDL_CLK_LVDS2_SEL>;
        assigned-clock-parents = <&clks IMX6QDL_CLK_OSC>;
};

/sys/kernel/debug/clk/clk_summary

osc                                 5            5    24000000          0 0
[...]
    lvds2_sel                       1            1    24000000          0 0
       lvds2_gate                   1            1    24000000          0 0
[...]

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-11-25 13:20:18 +08:00
Bai Ping
4824b61c66 clk: imx: add 'is_prepared' clk_ops callback for pllv3 clk
Add 'is_prepared' callback function for pllv3 type clk to make sure when
the system is bootup, the unused clk is in a known state to match the
prepare count info.

Signed-off-by: Bai Ping <b51503@freescale.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-11-25 11:50:46 +08:00
Markus Pargmann
78ae71ac88 clk: imx25: Remove osc clock from driver
The 'osc' clock is already initialized by the fixed clock defined in
imx25.dtsi. The imx25 clock driver tries to add this clock for a second
time and fails with -EEXIST:
	i.MX clk 1: register failed with -17

As the clock is already properly setup in DT with a different driver, we
can completely remove the handling in the imx25 clock driver.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-11-25 11:49:42 +08:00
Julia Lawall
489e5d4152 clk: imx31: add missing of_node_put
for_each_compatible_node performs an of_node_get on each iteration, so a
break out of the loop requires an of_node_put.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression e;
@@

 for_each_compatible_node(n,...) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-10-21 16:16:34 -07:00
Julia Lawall
77cb8ee675 clk: imx27: add missing of_node_put
for_each_compatible_node performs an of_node_get on each iteration, so a
break out of the loop requires an of_node_put.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression e;
@@

 for_each_compatible_node(n,...) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-10-21 16:16:34 -07:00
Stephen Boyd
3ce6c6e541 The i.MX clock updates for 4.4:
- A couple of fixes on i.MX31 and i.MX35 clock initialization functions
    which makes mxc_timer_init() currently be called twice for DT boot.
  - Increase i.MX6UL AXI bus clock rate to 264MHz which is the optimal
    design target.
  - Add a few missing clocks, ADC clock for i.MX7D, OCOTP clock for
    Vybrid, and SPDIF_GCLK for i.MX6.
  - A series from Lucas to fix early debug UART clock setup.  This is
    currently a one-off fix for i.MX platform, and can be extended to
    become a generic solution later.
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Merge tag 'imx-clk-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-next

Pull i.MX updates from Shawn Guo:

"The i.MX clock updates for 4.4:
 - A couple of fixes on i.MX31 and i.MX35 clock initialization functions
   which makes mxc_timer_init() currently be called twice for DT boot.
 - Increase i.MX6UL AXI bus clock rate to 264MHz which is the optimal
   design target.
 - Add a few missing clocks, ADC clock for i.MX7D, OCOTP clock for
   Vybrid, and SPDIF_GCLK for i.MX6.
 - A series from Lucas to fix early debug UART clock setup.  This is
   currently a one-off fix for i.MX platform, and can be extended to
   become a generic solution later."

* tag 'imx-clk-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  clk: imx6: Add SPDIF_GCLK clock in clock tree
  clk: imx7d: add ADC root clock
  clk: imx31: Do not call mxc_timer_init twice when booting with DT
  clk: imx7d: retain early UART clocks during kernel init
  clk: imx6: retain early UART clocks during kernel init
  clk: imx5: retain early UART clocks during kernel init
  clk: imx35: retain early UART clocks during kernel init
  clk: imx31: retain early UART clocks during kernel init
  clk: imx27: retain early UART clocks during kernel init
  clk: imx25: retain early UART clocks during kernel init
  clk: imx: add common logic to detect early UART usage
  clk: imx35: Do not call mxc_timer_init twice when booting with DT
  clk: clk-vf610: Add clock for Vybrid OCOTP controller
  clk: imx: increase AXI clock rate to 264MHz for i.MX6UL
2015-10-16 11:35:19 -07:00
Shengjiu Wang
84a87250ee clk: imx6: Add SPDIF_GCLK clock in clock tree
Correct SPDIF clock setting issue in clock tree, the SPDIF_GCLK is also
one clock of SPDIF, which is missed before.

We found an issue that imx can't enter low power mode with spdif
if IMX6x_CLK_SPDIF is used as the core clock of spdif. Because
spdif driver will register IMX6x_CLK_SPDIF clock to regmap, regmap will do
clk_prepare in init function, then IMX6x_CLK_SPDIF clock is prepared in probe,
so its parent clock (PLL clock) is prepared, the prepare operation of
PLL clock is to enable the clock. But I.MX needs all PLL clock is disabled,
then it can enter low power mode.

So we can't use IMX6x_CLK_SPDIF as the core clock of spdif, the correct spdif
core clock is SPDIF_GCLK, which share same gate bit with IMX6x_CLK_SPDIF clock.
SPDIF_GCLK's parent clock is ipg clock.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-10-12 21:55:59 +08:00
Haibo Chen
ab4c6a2407 clk: imx7d: add ADC root clock
Add ADC root clock support in imx7d clock tree.

Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-10-09 11:01:50 +08:00
Martin Kepplinger
53fdc8fd25 clk: imx: use sign_extend32() and abs()
This simplifies the given function by getting rid of the manual
sign extension as well as saving an absolute value in an extra
variable.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-10-01 16:40:01 -07:00
Alexander Stein
d9388c8432 clk: imx31: Do not call mxc_timer_init twice when booting with DT
mxc_timer_init must not be called from within mx31_clocks_init_dt. It will
eventually be called by imx31_timer_init_dt
(drivers/clocksource/timer-imx-gpt.c).
This arranges the initialization code similar to clk-imx27.c

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-30 14:43:37 +08:00
Lucas Stach
1b9af68f32 clk: imx7d: retain early UART clocks during kernel init
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-25 21:59:06 -07:00
Lucas Stach
0822f93373 clk: imx6: retain early UART clocks during kernel init
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-25 21:59:02 -07:00
Lucas Stach
89981a6f7b clk: imx5: retain early UART clocks during kernel init
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-25 21:58:59 -07:00
Lucas Stach
57d5a4c3ed clk: imx35: retain early UART clocks during kernel init
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-25 21:58:56 -07:00
Lucas Stach
5c678cdd02 clk: imx31: retain early UART clocks during kernel init
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-25 21:58:53 -07:00
Lucas Stach
6f18713163 clk: imx27: retain early UART clocks during kernel init
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-25 21:58:50 -07:00
Lucas Stach
517c7f9302 clk: imx25: retain early UART clocks during kernel init
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-25 21:58:47 -07:00
Lucas Stach
55adc61c56 clk: imx: add common logic to detect early UART usage
Both earlycon and eralyprintk depend on the bootloader setup UART
clocks being retained. This patch adds the common logic to detect such
situations and make the information available to the clock drivers, as
well as adding the facilities to disable those clocks at the end of
the kernel init.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-25 21:58:41 -07:00
Alexander Stein
8d449cb5e2 clk: imx35: Do not call mxc_timer_init twice when booting with DT
mxc_timer_init must not be called from within mx35_clocks_init_dt. It will
eventually be called by imx31_timer_init_dt
(drivers/clocksource/timer-imx-gpt.c).
This arranges the initialization code similar to clk-imx27.c

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-22 18:03:15 -07:00
Sanchayan Maity
0753f56e41 clk: clk-vf610: Add clock for Vybrid OCOTP controller
Add clock support for Vybrid On-Chip One Time Programmable
(OCOTP) controller.

While the OCOTP block does not require explicit clock gating,
for programming the OCOTP timing register the clock rate of
ipg clock is required for timing calculations related to fuse
and shadow register read sequence. We explicitly specify the
ipg clock for OCOTP as a result.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-22 18:02:40 -07:00
Anson Huang
8efaf5ed4d clk: imx: increase AXI clock rate to 264MHz for i.MX6UL
On i.MX6UL, AXI clock rate's design target is 264MHz, but by default
it is only set to 198MHz which is NOT good enough for performance,
this patch increases AXI clock rate from 198MHz to 264MHz to meet
the design target, this is done by switching its parent clock
"periph" from 396MHz PFD to 528MHz PLL.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-09-17 08:52:17 +08:00
Linus Torvalds
d4c90396ed Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "Here is the crypto update for 4.3:

  API:

   - the AEAD interface transition is now complete.
   - add top-level skcipher interface.

  Drivers:

   - x86-64 acceleration for chacha20/poly1305.
   - add sunxi-ss Allwinner Security System crypto accelerator.
   - add RSA algorithm to qat driver.
   - add SRIOV support to qat driver.
   - add LS1021A support to caam.
   - add i.MX6 support to caam"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (163 commits)
  crypto: algif_aead - fix for multiple operations on AF_ALG sockets
  crypto: qat - enable legacy VFs
  MPI: Fix mpi_read_buffer
  crypto: qat - silence a static checker warning
  crypto: vmx - Fixing opcode issue
  crypto: caam - Use the preferred style for memory allocations
  crypto: caam - Propagate the real error code in caam_probe
  crypto: caam - Fix the error handling in caam_probe
  crypto: caam - fix writing to JQCR_MS when using service interface
  crypto: hash - Add AHASH_REQUEST_ON_STACK
  crypto: testmgr - Use new skcipher interface
  crypto: skcipher - Add top-level skcipher interface
  crypto: cmac - allow usage in FIPS mode
  crypto: sahara - Use dmam_alloc_coherent
  crypto: caam - Add support for LS1021A
  crypto: qat - Don't move data inside output buffer
  crypto: vmx - Fixing GHASH Key issue on little endian
  crypto: vmx - Fixing AES-CTR counter bug
  crypto: null - Add missing Kconfig tristate for NULL2
  crypto: nx - Add forward declaration for struct crypto_aead
  ...
2015-08-31 17:38:39 -07:00
Michael Turquette
5c489ccad8 Merge tag 'imx-clk-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-next
The i.MX clock updates for 4.3:
 - Provide a better IPU clock initial settings on imx6dl for getting
   HDMI and LVDS at the same time.
 - Add clock driver support for i.MX6UL SoC
 - Add a second clock for RTC device on i.MX31 and i.MX35
2015-08-12 00:59:00 -07:00
Victoria Milhoan
dd503f6609 ARM: clk-imx6q: Add CAAM clock support
Add CAAM clock support to the i.MX6 clocking infrastructure.

Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
Tested-by: Horia Geantă <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-08-10 23:19:02 +08:00
Philippe Reynes
3713e3f5e9 clk: imx35: define two clocks for rtc
The imx35 don't define clocks for rtc.
This patch add two clocks, as needed
by the mxc rtc driver.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-08-05 20:01:21 +08:00
Philippe Reynes
00a48fe341 clk: imx31: add a second rtc clock
The mxc rtc driver needs two clock.
It was defined only one clock, so we
define the second clock.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-08-05 20:01:13 +08:00
Stephen Boyd
663724f990 clk: i.MX: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:49 -07:00
Frank Li
787b4271a6 clk: imx: add imx6ul clk tree support
Add imx6ul clock driver support.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Bai Ping <b51503@freescale.com>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-07-14 15:02:13 +08:00
Fabio Estevam
05e062f92c clk: imx: clk-imx6q: Provide initial IPU clock settings for mx6dl
Currently it is not possible to use HDMI and LVDS at the same time on a
imx6dl-sabresd board.

Fix this usecase by setting IMX6QDL_CLK_PLL3_PFD1_540M to 540MHz and
also by setting it as the parent of IMX6QDL_CLK_IPU1_SEL.

Based on the configuration done in the FSL kernel.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-07-13 16:35:30 +08:00
Linus Torvalds
4aa705b18b ARM: SoC: platform support for v4.2
Our SoC branch usually contains expanded support for new SoCs and
 other core platform code. Some highlights from this round:
 
 - sunxi: SMP support for A23 SoC
 - socpga: big-endian support
 - pxa: conversion to common clock framework
 - bcm: SMP support for BCM63138
 - imx: support new I.MX7D SoC
 - zte: basic support for ZX296702 SoC
 
  Conflicts:
 	arch/arm/mach-socfpga/core.h
 
 Trivial remove/remove conflict with our cleanup branch.
 Resolution: remove both sides
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform support updates from Kevin Hilman:
 "Our SoC branch usually contains expanded support for new SoCs and
  other core platform code.  Some highlights from this round:

   - sunxi: SMP support for A23 SoC
   - socpga: big-endian support
   - pxa: conversion to common clock framework
   - bcm: SMP support for BCM63138
   - imx: support new I.MX7D SoC
   - zte: basic support for ZX296702 SoC"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits)
  ARM: zx: Add basic defconfig support for ZX296702
  ARM: dts: zx: add an initial zx296702 dts and doc
  clk: zx: add clock support to zx296702
  dt-bindings: Add #defines for ZTE ZX296702 clocks
  ARM: socfpga: fix build error due to secondary_startup
  MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS
  ARM: ep93xx: simone: support for SPI-based MMC/SD cards
  MAINTAINERS: update Shawn's email to use kernel.org one
  ARM: socfpga: support suspend to ram
  ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10
  ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5
  ARM: EXYNOS: register power domain driver from core_initcall
  ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs
  ARM: SAMSUNG: Constify platform_device_id
  ARM: EXYNOS: Constify irq_domain_ops
  ARM: EXYNOS: add coupled cpuidle support for Exynos3250
  ARM: EXYNOS: add exynos_get_boot_addr() helper
  ARM: EXYNOS: add exynos_set_boot_addr() helper
  ARM: EXYNOS: make exynos_core_restart() less verbose
  ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout
  ...
2015-06-26 11:34:35 -07:00
Shawn Guo
0931aff722 ARM: imx: define an enum for gpt timer device type
Define an enum for gpt timer device type in include/soc/imx/timer.h to
tell the gpt block differences among SoCs.  Update non-DT users (clock
drivers) to pass the device type.

As we now have include/soc/imx/timer.h, the declaration of
mxc_timer_init() is moved into there as the best fit.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2015-06-03 14:52:26 +08:00
Sébastien Szymanski
da946aeaea ARM: clk-imx6q: refine sata's parent
According to IMX6D/Q RM, table 18-3, sata clock's parent is ahb, not ipg.

Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2015-06-03 14:49:38 +08:00
Mirza Krak
fbfd617ea4 ARM: imx: clk-v610: Add clock for I2C2 and I2C3
Add support for clock gating of I2C2 and I2C3.
We use I2C2 in a (not yet mainlined) device tree.

Signed-off-by: Mirza Krak <mirza.krak@hostmobility.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2015-06-03 14:49:38 +08:00