Re: [PATCH v3 08/10] clk: sunxi-ng: support R40 SoC

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在 2017-05-29 15:34,Chen-Yu Tsai 写道:
Hi,

On Sat, May 27, 2017 at 06:23:06PM +0800, Icenowy Zheng wrote:
Allwinner R40 SoC have a clock controller module in the style of the
SoCs beyond sun6i, however, it's more rich and complex.

Add support for it.

Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx>
---
Changes in v3:
- Rebased on current linux-next.
Changes in v2:
- Fixes according to the SoC's user manual.

 drivers/clk/sunxi-ng/Kconfig              |   10 +
 drivers/clk/sunxi-ng/Makefile             |    1 +
drivers/clk/sunxi-ng/ccu-sun8i-r40.c | 1153 +++++++++++++++++++++++++++++
 drivers/clk/sunxi-ng/ccu-sun8i-r40.h      |   68 ++
 include/dt-bindings/clock/sun8i-r40-ccu.h |  191 +++++
 include/dt-bindings/reset/sun8i-r40-ccu.h |  129 ++++
 6 files changed, 1552 insertions(+)
 create mode 100644 drivers/clk/sunxi-ng/ccu-sun8i-r40.c
 create mode 100644 drivers/clk/sunxi-ng/ccu-sun8i-r40.h
 create mode 100644 include/dt-bindings/clock/sun8i-r40-ccu.h
 create mode 100644 include/dt-bindings/reset/sun8i-r40-ccu.h

...
+static SUNXI_CCU_NM_WITH_GATE_LOCK(pll_ddr1_clk, "pll-ddr1",
+				   "osc24M", 0x04c,
+				   8, 7,	/* N */

N has minimum and maximum limits.

These constraints are never implemented in old SoCs.

--
2.12.2

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