linux-toradex.git/drivers/clk/imx, branch v4.4.73

clk: imx31: fix rewritten input argument of mx31_clocks_init()

2017-01-12T10:22:49+00:00

commit bae203d58b7dce89664071b3fafe20cedaa3e4f6 upstream.

Function mx31_clocks_init() is called during clock intialization on
legacy boards with reference clock frequency passed as its input
argument, this can be verified by examination of the function
declaration found in arch/arm/mach-imx/common.h and actual function
users which include that header file.

Inside CCF driver the function ignores its input argument, by chance
the used value in the function body is the same as input arguments on
side of all callers.

Fixes: d9388c843237 ("clk: imx31: Do not call mxc_timer_init twice when booting with DT")
Signed-off-by: Vladimir Zapolskiy 
Reviewed-by: Uwe Kleine-König 
Acked-by: Stephen Boyd 
Signed-off-by: Shawn Guo 
Signed-off-by: Greg Kroah-Hartman

ARM: clk-imx35: fix name for ckil clk

2016-10-31T10:13:59+00:00

commit fcff03813a7c612873303037cef5ba0329850c35 upstream.

This fixes
	[    0.000000] i.MX clk 82: register failed with -17
because the name is duplicated.

Signed-off-by: Uwe Kleine-König 
Fixes: 3713e3f5e927 ("clk: imx35: define two clocks for rtc")
Acked-by: Shawn Guo 
Signed-off-by: Stephen Boyd 
Signed-off-by: Greg Kroah-Hartman

clk: imx6: initialize GPU clocks

2016-10-28T07:01:26+00:00

commit d8846023aed1293e54d33499558fc2aa2b2f393f upstream.

Initialize the GPU clock muxes to sane inputs. Until now they have
not been changed from their default values, which means that both
GPU3D shader and GPU2D core were fed by clock inputs whose rates
exceed the maximium allowed frequency of the cores by as much as
200MHz.

This fixes a severe GPU stability issue on i.MX6DL.

Signed-off-by: Lucas Stach 
Acked-by: Shawn Guo 
Signed-off-by: Stephen Boyd 
Signed-off-by: Greg Kroah-Hartman

ARM: dts: imx35: restore existing used clock enumeration

2016-06-08T01:14:32+00:00

commit 3397c2c45b1b6f54834dfeae30a73046f33ca943 upstream.

A new element got inserted into enum mx35_clks with commit 3713e3f5e927
("clk: imx35: define two clocks for rtc"). This insertion shifted most
nummerical clock assignments to a new nummerical value which in turn
rendered most hardcoded nummeric values in imx35.dtsi incorrect.

Restore the existing order by moving the newly introduced clock to the
end of the enum. Update the dts documentation accordingly.

Signed-off-by: Alexander Kurz 
Fixes: 3713e3f5e927 ("clk: imx35: define two clocks for rtc")
Signed-off-by: Shawn Guo 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2015-12-13T00:43:44+00:00

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

ARM: imx: clk-vf610: fix SAI clock tree

2015-12-02T01:46:26+00:00

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 
Acked-by: Stephen Boyd 
Signed-off-by: Shawn Guo

imx/clk-pllv2: fix wrong do_div() usage

2015-11-30T20:58:38+00:00

do_div() is meant to be used with an unsigned dividend.

Signed-off-by: Nicolas Pitre 
Acked-by: Shawn Guo 
Signed-off-by: Stephen Boyd

imx/clk-pllv1: fix wrong do_div() usage

2015-11-30T20:58:35+00:00

do_div() is meant to be used with an unsigned dividend.

Signed-off-by: Nicolas Pitre 
Acked-by: Shawn Guo 
Signed-off-by: Stephen Boyd

clk: imx31: add missing of_node_put

2015-10-21T23:16:34+00:00

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):

// 
@@
local idexpression n;
expression e;
@@

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

Signed-off-by: Julia Lawall 
Signed-off-by: Stephen Boyd

clk: imx27: add missing of_node_put

2015-10-21T23:16:34+00:00

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):

// 
@@
local idexpression n;
expression e;
@@

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

Signed-off-by: Julia Lawall 
Signed-off-by: Stephen Boyd