clk: sunxi: Add apb0 gates for H3

This patch adds support for APB0 in H3. It seems to be compatible with
earlier SOCs. apb0 gates controls R_ block peripherals (R_PIO, R_IR,
etc).

Since this gates behave just like any Allwinner clock gate, add a generic
compatible that can be reused if we don't have any clock to protect.

Signed-off-by: Krzysztof Adamski <k@japko.eu>
[Maxime: Removed the H3 compatible from the simple-gates driver, reworked
         the commit log a bit]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt
index c09f59b1747c9c49f8f002e1411a0c8c8b6a67c8..834436fbe83d50539914108a79b0b814c144ad9e 100644 (file)
--- a/Documentation/devicetree/bindings/clock/sunxi.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi.txt
@@ -18,6 +18,7 @@ Required properties:
        "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-gates-clk" - for generic gates on all compatible SoCs
        "allwinner,sun4i-a10-axi-gates-clk" - for the AXI gates
        "allwinner,sun4i-a10-ahb-clk" - for the AHB clock
        "allwinner,sun5i-a13-ahb-clk" - for the AHB clock on A13
@@ -46,6 +47,7 @@ Required properties:
        "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,sun8i-h3-apb0-gates-clk" - for the APB0 gates on H3
        "allwinner,sun9i-a80-apb0-gates-clk" - for the APB0 gates on A80
        "allwinner,sun4i-a10-apb1-clk" - for the APB1 clock
        "allwinner,sun9i-a80-apb1-clk" - for the APB1 bus clock on A80

diff --git a/drivers/clk/sunxi/clk-simple-gates.c b/drivers/clk/sunxi/clk-simple-gates.c
index 2cfc5a8a55340c4131b77443f4ac0f142f543be6..a085c3bc127c5d33fd4c4dfd1dbd00cced8e040a 100644 (file)
--- a/drivers/clk/sunxi/clk-simple-gates.c
+++ b/drivers/clk/sunxi/clk-simple-gates.c
@@ -98,6 +98,8 @@ static void __init sunxi_simple_gates_init(struct device_node *node)
        sunxi_simple_gates_setup(node, NULL, 0);
 }
 
+CLK_OF_DECLARE(sun4i_a10_gates, "allwinner,sun4i-a10-gates-clk",
+              sunxi_simple_gates_init);
 CLK_OF_DECLARE(sun4i_a10_apb0, "allwinner,sun4i-a10-apb0-gates-clk",
               sunxi_simple_gates_init);
 CLK_OF_DECLARE(sun4i_a10_apb1, "allwinner,sun4i-a10-apb1-gates-clk",