linux-toradex.git/drivers/clk/clk-fixed-factor.c, branch v5.10-rc2

clk: fixed: add missing kerneldoc

2020-09-22T19:44:14+00:00

Add missing kerneldoc to fix compile warnings like:

  drivers/clk/clk-fixed-factor.c:211: warning: Function parameter or member 'node' not described in 'of_fixed_factor_clk_setup'

Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20200916161740.14173-2-krzk@kernel.org
Signed-off-by: Stephen Boyd

Merge branch 'clk-parent-rewrite-1' into clk-next

2019-05-07T18:46:13+00:00

 - Rewrite how clk parents can be specified to be DT/clkdev based instead
   of just string based

* clk-parent-rewrite-1:
  clk: Cache core in clk_fetch_parent_index() without names
  clk: fixed-factor: Initialize clk_init_data on stack
  clk: fixed-factor: Let clk framework find parent
  clk: Allow parents to be specified via clkspec index
  clk: Look for parents with clkdev based clk_lookups
  clk: Allow parents to be specified without string names
  clk: Add of_clk_hw_register() API for early clk drivers
  driver core: Let dev_of_node() accept a NULL dev
  clk: Prepare for clk registration API that uses DT nodes
  clkdev: Move clk creation outside of 'clocks_mutex'

clk: Remove CLK_IS_BASIC clk flag

2019-04-26T17:40:49+00:00

This flag was historically used to indicate that a clk is a "basic" type
of clk like a mux, divider, gate, etc. This never turned out to be very
useful though because it was hard to cleanly split "basic" clks from
other clks in a system. This one flag was a way for type introspection
and it just didn't scale. If anything, it was used by the TI clk driver
to indicate that a clk_hw wasn't contained in the SoC specific clk
structure. We can get rid of this define now that TI is finding those
clks a different way.

Cc: Tero Kristo 
Cc: Ralf Baechle 
Cc: Paul Burton 
Cc: James Hogan 
Cc: 
Cc: Thierry Reding 
Cc: Kevin Hilman 
Cc: 
Cc: 
Acked-by: Thierry Reding 
Signed-off-by: Stephen Boyd

clk: fixed-factor: Initialize clk_init_data on stack

2019-04-23T17:46:51+00:00

This structure can be full of junk from the stack if we don't initialize
it. The clk framework tests clk_init_data::parent_names for non-NULL and
then considers that as the parent name pointer, but if it's full of junk
then we'll try to deref a bad pointer and oops the system. Let's
initialize the structure so that only clk_init_data::parent_names or
clk_init_data::parent_data is set, and not both.

Reported-by: "kernelci.org bot" 
Tested-by: Geert Uytterhoeven 
Tested-by: Tony Lindgren 
Fixes: ecbf3f1795fd ("clk: fixed-factor: Let clk framework find parent")
Signed-off-by: Stephen Boyd

clk: fixed-factor: Let clk framework find parent

2019-04-19T21:53:20+00:00

Convert this driver to a more modern way of specifying parents now that
we have a way to specify clk parents by DT index. This lets us nicely
avoid a problem where a parent clk name isn't know because the parent
clk hasn't been registered yet.

Cc: Miquel Raynal 
Cc: Jerome Brunet 
Cc: Russell King 
Cc: Michael Turquette 
Cc: Jeffrey Hugo 
Cc: Chen-Yu Tsai 
Tested-by: Jeffrey Hugo 
Signed-off-by: Stephen Boyd

Merge branch 'clk-fixes' into clk-next

2018-12-14T21:42:08+00:00

* clk-fixes:
  clk: qcom: qcs404: Fix gpll0_out_main parent
  clk: zynqmp: Off by one in zynqmp_is_valid_clock()
  clk: mmp: Off by one in mmp_clk_add()
  clk: mvebu: Off by one bugs in cp110_of_clk_get()
  arm64: dts: qcom: sdm845-mtp: Mark protected gcc clocks
  clk: zynqmp: handle fixed factor param query error
  clk: qcom: gcc: Fix board clock node name
  clk: meson: axg: mark fdiv2 and fdiv3 as critical
  clk: meson-gxbb: set fclk_div3 as CLK_IS_CRITICAL
  clk: fixed-factor: fix of_node_get-put imbalance

clk: Tag basic clk types with SPDX

2018-12-11T17:57:48+00:00

These are all GPL-2.0 files per the existing license text. Replace the
boiler plate with the tag.

Signed-off-by: Stephen Boyd

clk: fixed-factor: fix of_node_get-put imbalance

2018-11-06T16:27:52+00:00

When the fixed factor clock is created by devicetree,
of_clk_add_provider is called.  Add a call to
of_clk_del_provider in the remove function to balance
it out.

Reported-by: Alan Tull 
Fixes: 971451b3b15d ("clk: fixed-factor: Convert into a module platform driver")
Signed-off-by: Ricardo Ribalda Delgado 
Signed-off-by: Stephen Boyd

clk: Convert to using %pOFn instead of device_node.name

2018-08-30T16:50:20+00:00

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Eugeniy Paltsev 
Cc: Michael Turquette 
Cc: Stephen Boyd 
Cc: linux-clk@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Signed-off-by: Rob Herring 
Signed-off-by: Stephen Boyd

clk: clk-fixed-factor: Clear OF_POPULATED flag in case of failure

2018-07-25T16:36:46+00:00

Fixed factor clock has two initializations at of_clk_init() time
and during platform driver probe. Before of_clk_init() call,
node is marked as populated and so its probe never gets called.

During of_clk_init() fixed factor clock registration may fail if
any of its parent clock is not registered. In this case, it doesn't
get chance to retry registration from probe. Clear OF_POPULATED
flag if fixed factor clock registration fails so that clock
registration is attempted again from probe.

Signed-off-by: Rajan Vaja 
Signed-off-by: Stephen Boyd