linux.git/drivers/clk/sunxi, branch v3.11

clk: sunxi: "cpu_data" is defined in header files of some architectures

2013-05-29T22:48:23+00:00

In some architectures, the #define cpu_data is not a "macro-function",
so the compiler will substitute the identifier with probably something
wrong.

Signed-off-by: Giacomo A. Catenazzi 
Signed-off-by: Emilio López 
[emilio@elopez.com.ar: use cpu_mux_data instead of this_cpu_data]
Signed-off-by: Mike Turquette

clk: sun5i: Add compatibles for Allwinner A13

2013-05-29T05:50:31+00:00

The A13 has a lot less clocks than the one found in the Allwinner A10.
Add these stripped down clocks to the clock driver and in the
documentation.

Signed-off-by: Maxime Ripard 
Acked-by: Emilio López 
Signed-off-by: Mike Turquette

clk: sunxi: Unify oscillator clock

2013-04-12T18:23:41+00:00

This commit uses the new fixed-rate support on the composite clock to
unify osc24M_fixed and osc24M clocks, so it matches the actual hardware.

Signed-off-by: Emilio López 
Signed-off-by: Mike Turquette 
[mturquette@linaro.org: replace clk_register_gatable_osc with a call to
clk_register_composite]

clk: sunxi: drop an unnecesary kmalloc

2013-04-04T20:53:02+00:00

clk_register will copy this information, so we can just use a normal
array and do one less dynamic allocation.

Signed-off-by: Emilio López 
Reviewed-by: Gregory CLEMENT 
Signed-off-by: Mike Turquette

clk: sunxi: drop CLK_IGNORE_UNUSED

2013-04-04T20:52:50+00:00

This flag was in place to prevent important clocks from getting gated
while they had no users. Now that the UART driver supports clocks
properly, we can drop this.

Signed-off-by: Emilio López 
Reviewed-by: Gregory CLEMENT 
Signed-off-by: Mike Turquette

clk: sunxi: Add support for AXI, AHB, APB0 and APB1 gates

2013-04-04T20:51:35+00:00

This patchset adds DT support for all the AXI, AHB, APB0 and APB1
gates present on sunxi SoCs.

Signed-off-by: Emilio López 
Reviewed-by: Gregory CLEMENT 
Signed-off-by: Mike Turquette

clk: sunxi: rename compatible strings

2013-03-27T15:35:35+00:00

During the introduction of the Allwinner SoC platforms, sunxi was
initially meant as a generic name for all the variants of the Allwinner
SoC.

It was ok at the time of the support of only the A10 and A13 that
look pretty much the same; but it's beginning to be troublesome with
the future addition of the Allwinner A31 (sun6i) that is quite
different, and would introduce some weird logic, where sunxi would
actually mean in some case sun4i and sun5i but without sun6i...

Moreover, it makes the compatible strings naming scheme not consistent
with other architectures, where usually for this kind of compability, we
just use the oldest SoC name that has this IP, so let's do just this.

Signed-off-by: Emilio López 
Signed-off-by: Mike Turquette

clk: arm: sunxi: Add a new clock driver for sunxi SOCs

2013-03-27T15:35:34+00:00

This commit implements the base CPU clocks for sunxi devices. It has
been tested using a slightly modified cpufreq driver from the
linux-sunxi 3.0 tree.

Additionally, document the new bindings introduced by this patch.

Idling:
    / # cat /sys/kernel/debug/clk/clk_summary
       clock                        enable_cnt  prepare_cnt  rate
    ---------------------------------------------------------------------
     osc32k                         0           0            32768
     osc24M_fixed                   0           0            24000000
        osc24M                      0           0            24000000
           apb1_mux                 0           0            24000000
              apb1                  0           0            24000000
           pll1                     0           0            60000000
              cpu                   0           0            60000000
                 axi                0           0            60000000
                    ahb             0           0            60000000
                       apb0         0           0            30000000
     dummy                          0           0            0

After "yes >/dev/null &":
    / # cat /sys/kernel/debug/clk/clk_summary
       clock                        enable_cnt  prepare_cnt  rate
    ---------------------------------------------------------------------
     osc32k                         0           0            32768
     osc24M_fixed                   0           0            24000000
        osc24M                      0           0            24000000
           apb1_mux                 0           0            24000000
              apb1                  0           0            24000000
           pll1                     0           0            1008000000
              cpu                   0           0            1008000000
                 axi                0           0            336000000
                    ahb             0           0            168000000
                       apb0         0           0            84000000
     dummy                          0           0            0

Signed-off-by: Emilio López 
Acked-by: Maxime Ripard 
Signed-off-by: Mike Turquette