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Merge tag 'v3.19-rc2' into for-3.20/core
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Linux 3.19-rc2
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axboe committed Jan 2, 2015
2 parents 35b489d + b7392d2 commit 5d7bf4d
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3 changes: 3 additions & 0 deletions .gitignore
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Expand Up @@ -96,3 +96,6 @@ x509.genkey

# Kconfig presets
all.config

# Kdevelop4
*.kdev4
2 changes: 1 addition & 1 deletion Documentation/clk.txt
Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,7 @@ the operations defined in clk.h:
long (*determine_rate)(struct clk_hw *hw,
unsigned long rate,
unsigned long *best_parent_rate,
struct clk **best_parent_clk);
struct clk_hw **best_parent_clk);
int (*set_parent)(struct clk_hw *hw, u8 index);
u8 (*get_parent)(struct clk_hw *hw);
int (*set_rate)(struct clk_hw *hw,
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38 changes: 38 additions & 0 deletions Documentation/devicetree/bindings/clock/exynos4415-clock.txt
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* Samsung Exynos4415 Clock Controller

The Exynos4415 clock controller generates and supplies clock to various
consumer devices within the Exynos4415 SoC.

Required properties:

- compatible: should be one of the following:
- "samsung,exynos4415-cmu" - for the main system clocks controller
(CMU_LEFTBUS, CMU_RIGHTBUS, CMU_TOP, CMU_CPU clock domains).
- "samsung,exynos4415-cmu-dmc" - for the Exynos4415 SoC DRAM Memory
Controller (DMC) domain clock controller.

- reg: physical base address of the controller and length of memory mapped
region.

- #clock-cells: should be 1.

Each clock is assigned an identifier and client nodes can use this identifier
to specify the clock which they consume.

All available clocks are defined as preprocessor macros in
dt-bindings/clock/exynos4415.h header and can be used in device
tree sources.

Example 1: An example of a clock controller node is listed below.

cmu: clock-controller@10030000 {
compatible = "samsung,exynos4415-cmu";
reg = <0x10030000 0x18000>;
#clock-cells = <1>;
};

cmu-dmc: clock-controller@105C0000 {
compatible = "samsung,exynos4415-cmu-dmc";
reg = <0x105C0000 0x3000>;
#clock-cells = <1>;
};
93 changes: 93 additions & 0 deletions Documentation/devicetree/bindings/clock/exynos7-clock.txt
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* Samsung Exynos7 Clock Controller

Exynos7 clock controller has various blocks which are instantiated
independently from the device-tree. These clock controllers
generate and supply clocks to various hardware blocks within
the SoC.

Each clock is assigned an identifier and client nodes can use
this identifier to specify the clock which they consume. All
available clocks are defined as preprocessor macros in
dt-bindings/clock/exynos7-clk.h header and can be used in
device tree sources.

External clocks:

There are several clocks that are generated outside the SoC. It
is expected that they are defined using standard clock bindings
with following clock-output-names:

- "fin_pll" - PLL input clock from XXTI

Required Properties for Clock Controller:

- compatible: clock controllers will use one of the following
compatible strings to indicate the clock controller
functionality.

- "samsung,exynos7-clock-topc"
- "samsung,exynos7-clock-top0"
- "samsung,exynos7-clock-top1"
- "samsung,exynos7-clock-ccore"
- "samsung,exynos7-clock-peric0"
- "samsung,exynos7-clock-peric1"
- "samsung,exynos7-clock-peris"
- "samsung,exynos7-clock-fsys0"
- "samsung,exynos7-clock-fsys1"

- reg: physical base address of the controller and the length of
memory mapped region.

- #clock-cells: should be 1.

- clocks: list of clock identifiers which are fed as the input to
the given clock controller. Please refer the next section to
find the input clocks for a given controller.

- clock-names: list of names of clocks which are fed as the input
to the given clock controller.

Input clocks for top0 clock controller:
- fin_pll
- dout_sclk_bus0_pll
- dout_sclk_bus1_pll
- dout_sclk_cc_pll
- dout_sclk_mfc_pll

Input clocks for top1 clock controller:
- fin_pll
- dout_sclk_bus0_pll
- dout_sclk_bus1_pll
- dout_sclk_cc_pll
- dout_sclk_mfc_pll

Input clocks for ccore clock controller:
- fin_pll
- dout_aclk_ccore_133

Input clocks for peric0 clock controller:
- fin_pll
- dout_aclk_peric0_66
- sclk_uart0

Input clocks for peric1 clock controller:
- fin_pll
- dout_aclk_peric1_66
- sclk_uart1
- sclk_uart2
- sclk_uart3

Input clocks for peris clock controller:
- fin_pll
- dout_aclk_peris_66

Input clocks for fsys0 clock controller:
- fin_pll
- dout_aclk_fsys0_200
- dout_sclk_mmc2

Input clocks for fsys1 clock controller:
- fin_pll
- dout_aclk_fsys1_200
- dout_sclk_mmc0
- dout_sclk_mmc1
21 changes: 21 additions & 0 deletions Documentation/devicetree/bindings/clock/marvell,mmp2.txt
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* Marvell MMP2 Clock Controller

The MMP2 clock subsystem generates and supplies clock to various
controllers within the MMP2 SoC.

Required Properties:

- compatible: should be one of the following.
- "marvell,mmp2-clock" - controller compatible with MMP2 SoC.

- reg: physical base address of the clock subsystem and length of memory mapped
region. There are 3 places in SOC has clock control logic:
"mpmu", "apmu", "apbc". So three reg spaces need to be defined.

- #clock-cells: should be 1.
- #reset-cells: should be 1.

Each clock is assigned an identifier and client nodes use this identifier
to specify the clock which they consume.

All these identifier could be found in <dt-bindings/clock/marvell-mmp2.h>.
21 changes: 21 additions & 0 deletions Documentation/devicetree/bindings/clock/marvell,pxa168.txt
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* Marvell PXA168 Clock Controller

The PXA168 clock subsystem generates and supplies clock to various
controllers within the PXA168 SoC.

Required Properties:

- compatible: should be one of the following.
- "marvell,pxa168-clock" - controller compatible with PXA168 SoC.

- reg: physical base address of the clock subsystem and length of memory mapped
region. There are 3 places in SOC has clock control logic:
"mpmu", "apmu", "apbc". So three reg spaces need to be defined.

- #clock-cells: should be 1.
- #reset-cells: should be 1.

Each clock is assigned an identifier and client nodes use this identifier
to specify the clock which they consume.

All these identifier could be found in <dt-bindings/clock/marvell,pxa168.h>.
21 changes: 21 additions & 0 deletions Documentation/devicetree/bindings/clock/marvell,pxa910.txt
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* Marvell PXA910 Clock Controller

The PXA910 clock subsystem generates and supplies clock to various
controllers within the PXA910 SoC.

Required Properties:

- compatible: should be one of the following.
- "marvell,pxa910-clock" - controller compatible with PXA910 SoC.

- reg: physical base address of the clock subsystem and length of memory mapped
region. There are 4 places in SOC has clock control logic:
"mpmu", "apmu", "apbc", "apbcp". So four reg spaces need to be defined.

- #clock-cells: should be 1.
- #reset-cells: should be 1.

Each clock is assigned an identifier and client nodes use this identifier
to specify the clock which they consume.

All these identifier could be found in <dt-bindings/clock/marvell-pxa910.h>.
Original file line number Diff line number Diff line change
Expand Up @@ -7,22 +7,28 @@ to 64.
Required Properties:

- compatible: Must be one of the following
- "renesas,r8a73a4-div6-clock" for R8A73A4 (R-Mobile APE6) DIV6 clocks
- "renesas,r8a7740-div6-clock" for R8A7740 (R-Mobile A1) DIV6 clocks
- "renesas,r8a7790-div6-clock" for R8A7790 (R-Car H2) DIV6 clocks
- "renesas,r8a7791-div6-clock" for R8A7791 (R-Car M2) DIV6 clocks
- "renesas,sh73a0-div6-clock" for SH73A0 (SH-Mobile AG5) DIV6 clocks
- "renesas,cpg-div6-clock" for generic DIV6 clocks
- reg: Base address and length of the memory resource used by the DIV6 clock
- clocks: Reference to the parent clock
- clocks: Reference to the parent clock(s); either one, four, or eight
clocks must be specified. For clocks with multiple parents, invalid
settings must be specified as "<0>".
- #clock-cells: Must be 0
- clock-output-names: The name of the clock as a free-form string


Example
-------

sd2_clk: sd2_clk@e6150078 {
compatible = "renesas,r8a7790-div6-clock", "renesas,cpg-div6-clock";
reg = <0 0xe6150078 0 4>;
clocks = <&pll1_div2_clk>;
sdhi2_clk: sdhi2_clk@e615007c {
compatible = "renesas,r8a73a4-div6-clock", "renesas,cpg-div6-clock";
reg = <0 0xe615007c 0 4>;
clocks = <&pll1_div2_clk>, <&cpg_clocks R8A73A4_CLK_PLL2S>,
<0>, <&extal2_clk>;
#clock-cells = <0>;
clock-output-names = "sd2";
clock-output-names = "sdhi2ck";
};
Original file line number Diff line number Diff line change
Expand Up @@ -26,11 +26,11 @@ Required Properties:
must appear in the same order as the output clocks.
- #clock-cells: Must be 1
- clock-output-names: The name of the clocks as free-form strings
- renesas,clock-indices: Indices of the gate clocks into the group (0 to 31)
- clock-indices: Indices of the gate clocks into the group (0 to 31)

The clocks, clock-output-names and renesas,clock-indices properties contain one
entry per gate clock. The MSTP groups are sparsely populated. Unimplemented
gate clocks must not be declared.
The clocks, clock-output-names and clock-indices properties contain one entry
per gate clock. The MSTP groups are sparsely populated. Unimplemented gate
clocks must not be declared.


Example
Expand Down
31 changes: 27 additions & 4 deletions Documentation/devicetree/bindings/clock/sunxi.txt
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Expand Up @@ -10,14 +10,17 @@ Required properties:
"allwinner,sun4i-a10-pll1-clk" - for the main PLL clock and PLL4
"allwinner,sun6i-a31-pll1-clk" - for the main PLL clock on A31
"allwinner,sun8i-a23-pll1-clk" - for the main PLL clock on A23
"allwinner,sun9i-a80-pll4-clk" - for the peripheral PLLs on A80
"allwinner,sun4i-a10-pll5-clk" - for the PLL5 clock
"allwinner,sun4i-a10-pll6-clk" - for the PLL6 clock
"allwinner,sun6i-a31-pll6-clk" - for the PLL6 clock on A31
"allwinner,sun9i-a80-gt-clk" - for the GT bus clock on A80
"allwinner,sun4i-a10-cpu-clk" - for the CPU multiplexer clock
"allwinner,sun4i-a10-axi-clk" - for the AXI clock
"allwinner,sun8i-a23-axi-clk" - for the AXI clock on A23
"allwinner,sun4i-a10-axi-gates-clk" - for the AXI gates
"allwinner,sun4i-a10-ahb-clk" - for the AHB clock
"allwinner,sun9i-a80-ahb-clk" - for the AHB bus clocks on A80
"allwinner,sun4i-a10-ahb-gates-clk" - for the AHB gates on A10
"allwinner,sun5i-a13-ahb-gates-clk" - for the AHB gates on A13
"allwinner,sun5i-a10s-ahb-gates-clk" - for the AHB gates on A10s
Expand All @@ -26,24 +29,29 @@ Required properties:
"allwinner,sun6i-a31-ahb1-mux-clk" - for the AHB1 multiplexer on A31
"allwinner,sun6i-a31-ahb1-gates-clk" - for the AHB1 gates on A31
"allwinner,sun8i-a23-ahb1-gates-clk" - for the AHB1 gates on A23
"allwinner,sun9i-a80-ahb0-gates-clk" - for the AHB0 gates on A80
"allwinner,sun9i-a80-ahb1-gates-clk" - for the AHB1 gates on A80
"allwinner,sun9i-a80-ahb2-gates-clk" - for the AHB2 gates on A80
"allwinner,sun4i-a10-apb0-clk" - for the APB0 clock
"allwinner,sun6i-a31-apb0-clk" - for the APB0 clock on A31
"allwinner,sun8i-a23-apb0-clk" - for the APB0 clock on A23
"allwinner,sun9i-a80-apb0-clk" - for the APB0 bus clock on A80
"allwinner,sun4i-a10-apb0-gates-clk" - for the APB0 gates on A10
"allwinner,sun5i-a13-apb0-gates-clk" - for the APB0 gates on A13
"allwinner,sun5i-a10s-apb0-gates-clk" - for the APB0 gates on A10s
"allwinner,sun6i-a31-apb0-gates-clk" - for the APB0 gates on A31
"allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20
"allwinner,sun8i-a23-apb0-gates-clk" - for the APB0 gates on A23
"allwinner,sun9i-a80-apb0-gates-clk" - for the APB0 gates on A80
"allwinner,sun4i-a10-apb1-clk" - for the APB1 clock
"allwinner,sun4i-a10-apb1-mux-clk" - for the APB1 clock muxing
"allwinner,sun9i-a80-apb1-clk" - for the APB1 bus clock on A80
"allwinner,sun4i-a10-apb1-gates-clk" - for the APB1 gates on A10
"allwinner,sun5i-a13-apb1-gates-clk" - for the APB1 gates on A13
"allwinner,sun5i-a10s-apb1-gates-clk" - for the APB1 gates on A10s
"allwinner,sun6i-a31-apb1-gates-clk" - for the APB1 gates on A31
"allwinner,sun7i-a20-apb1-gates-clk" - for the APB1 gates on A20
"allwinner,sun8i-a23-apb1-gates-clk" - for the APB1 gates on A23
"allwinner,sun6i-a31-apb2-div-clk" - for the APB2 gates on A31
"allwinner,sun9i-a80-apb1-gates-clk" - for the APB1 gates on A80
"allwinner,sun6i-a31-apb2-gates-clk" - for the APB2 gates on A31
"allwinner,sun8i-a23-apb2-gates-clk" - for the APB2 gates on A23
"allwinner,sun5i-a13-mbus-clk" - for the MBUS clock on A13
Expand All @@ -63,8 +71,9 @@ Required properties for all clocks:
multiplexed clocks, the list order must match the hardware
programming order.
- #clock-cells : from common clock binding; shall be set to 0 except for
"allwinner,*-gates-clk", "allwinner,sun4i-pll5-clk" and
"allwinner,sun4i-pll6-clk" where it shall be set to 1
the following compatibles where it shall be set to 1:
"allwinner,*-gates-clk", "allwinner,sun4i-pll5-clk",
"allwinner,sun4i-pll6-clk", "allwinner,sun6i-a31-pll6-clk"
- clock-output-names : shall be the corresponding names of the outputs.
If the clock module only has one output, the name shall be the
module name.
Expand All @@ -79,6 +88,12 @@ Clock consumers should specify the desired clocks they use with a
"clocks" phandle cell. Consumers that are using a gated clock should
provide an additional ID in their clock property. This ID is the
offset of the bit controlling this particular gate in the register.
For the other clocks with "#clock-cells" = 1, the additional ID shall
refer to the index of the output.

For "allwinner,sun6i-a31-pll6-clk", there are 2 outputs. The first output
is the normal PLL6 output, or "pll6". The second output is rate doubled
PLL6, or "pll6x2".

For example:

Expand Down Expand Up @@ -106,6 +121,14 @@ pll5: clk@01c20020 {
clock-output-names = "pll5_ddr", "pll5_other";
};

pll6: clk@01c20028 {
#clock-cells = <1>;
compatible = "allwinner,sun6i-a31-pll6-clk";
reg = <0x01c20028 0x4>;
clocks = <&osc24M>;
clock-output-names = "pll6", "pll6x2";
};

cpu: cpu@01c20054 {
#clock-cells = <0>;
compatible = "allwinner,sun4i-a10-cpu-clk";
Expand Down
3 changes: 2 additions & 1 deletion MAINTAINERS
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Expand Up @@ -2576,8 +2576,9 @@ F: drivers/media/platform/coda/

COMMON CLK FRAMEWORK
M: Mike Turquette <[email protected]>
M: Stephen Boyd <[email protected]>
L: [email protected]
T: git git://git.linaro.org/people/mturquette/linux.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git
S: Maintained
F: drivers/clk/
X: drivers/clk/clkdev.c
Expand Down
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