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Groups > linux.kernel > #1309402

[PATCH v2 08/26] clk: sun5i: add DRAM gates

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The Allwinner SoCs have a gate controller to gate the access to the DRAM
clock to the some devices that need to access the DRAM directly (mostly
display / image related IPs).

Use a simple gates driver to support the one found in the A13 / R8 SoCs.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
---
 Documentation/devicetree/bindings/clock/sunxi.txt | 1 +
 drivers/clk/sunxi/clk-simple-gates.c              | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt
index fe34fc56e803..2a76cc3718d4 100644
--- a/Documentation/devicetree/bindings/clock/sunxi.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi.txt
@@ -57,6 +57,7 @@ Required properties:
 	"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,sun4i-a10-display-clk" - for the display clocks on the A10
+	"allwinner,sun5i-a13-dram-gates-clk" - for the DRAM gates on A13
 	"allwinner,sun5i-a13-mbus-clk" - for the MBUS clock on A13
 	"allwinner,sun4i-a10-mmc-clk" - for the MMC clock
 	"allwinner,sun9i-a80-mmc-clk" - for mmc module clocks on A80
diff --git a/drivers/clk/sunxi/clk-simple-gates.c b/drivers/clk/sunxi/clk-simple-gates.c
index 0214c6548afd..5666c767fa14 100644
--- a/drivers/clk/sunxi/clk-simple-gates.c
+++ b/drivers/clk/sunxi/clk-simple-gates.c
@@ -112,6 +112,8 @@ CLK_OF_DECLARE(sun5i_a13_apb0, "allwinner,sun5i-a13-apb0-gates-clk",
 	       sunxi_simple_gates_init);
 CLK_OF_DECLARE(sun5i_a13_apb1, "allwinner,sun5i-a13-apb1-gates-clk",
 	       sunxi_simple_gates_init);
+CLK_OF_DECLARE(sun5i_a13_dram, "allwinner,sun5i-a13-dram-gates-clk",
+	       sunxi_simple_gates_init);
 CLK_OF_DECLARE(sun6i_a31_ahb1, "allwinner,sun6i-a31-ahb1-gates-clk",
 	       sunxi_simple_gates_init);
 CLK_OF_DECLARE(sun6i_a31_apb1, "allwinner,sun6i-a31-apb1-gates-clk",
-- 
2.6.4

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[PATCH v2 00/26] drm: Add Allwinner A10 display engine support Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 03/26] clk: Add regmap support Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 22/26] ARM: sun5i: r8: Add display blocks to the DTSI Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 20/26] drm: sun4i: tv: Add PAL output standard Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 21/26] drm: sun4i: tv: Add NTSC output standard Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 10/26] ARM: sun5i: a13: Add display and TCON clocks Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 18/26] drm: sun4i: Add RGB output Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 23/26] ARM: sun5i: chip: Enable the TV Encoder Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 11/26] ARM: sun5i: Add DRAM gates Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 19/26] drm: sun4i: Add composite output Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 08/26] clk: sun5i: add DRAM gates Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
    Re: [PATCH v2 08/26] clk: sun5i: add DRAM gates Rob Herring <robh@kernel.org> - 2016-01-15 04:10 +0100
  [PATCH v2 06/26] clk: sunxi: Add PLL3 clock Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
    Re: [PATCH v2 06/26] clk: sunxi: Add PLL3 clock Rob Herring <robh@kernel.org> - 2016-01-15 04:10 +0100
  [PATCH v2 04/26] clk: composite: Add unregister function Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:30 +0100
  [PATCH v2 02/26] reset: Make reset_control_ops const Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
  [PATCH v2 07/26] clk: sunxi: Add TCON channel1 clock Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
    Re: [PATCH v2 07/26] clk: sunxi: Add TCON channel1 clock Rob Herring <robh@kernel.org> - 2016-01-15 04:10 +0100
  [PATCH v2 26/26] DO NOT MERGE: ARM: sun5i: chip: Enable the LCD panel Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
  [PATCH v2 15/26] drm/modes: Support modes names on the command line Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
  [PATCH v2 14/26] drm/modes: Rewrite the command line parser Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
  [PATCH v2 17/26] drm: sun4i: Add DT bindings documentation Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
    Re: [PATCH v2 17/26] drm: sun4i: Add DT bindings documentation Rob Herring <robh@kernel.org> - 2016-01-15 04:20 +0100
  [PATCH v2 12/26] ARM: sun5i: Add TV encoder gate to the DTSI Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
  [PATCH v2 25/26] drm/panel: simple: Add timings for the Olimex LCD-OLinuXino-4.3TS Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
    Re: [PATCH v2 25/26] drm/panel: simple: Add timings for the Olimex  LCD-OLinuXino-4.3TS Rob Herring <robh@kernel.org> - 2016-01-15 04:20 +0100
  [PATCH v2 13/26] drm/fb_cma_helper: Remove implicit call to disable_unused_functions Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
    Re: [PATCH v2 13/26] drm/fb_cma_helper: Remove implicit call to disable_unused_functions Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2016-01-15 00:20 +0100
  [PATCH v2 05/26] clk: sunxi: Add display and TCON0 clocks driver Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
    Re: [PATCH v2 05/26] clk: sunxi: Add display and TCON0 clocks driver Rob Herring <robh@kernel.org> - 2016-01-15 04:10 +0100
  [PATCH v2 24/26] devicetree: Add olimex vendor prefix Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
    Re: [PATCH v2 24/26] devicetree: Add olimex vendor prefix Rob Herring <robh@kernel.org> - 2016-01-15 04:20 +0100
      Re: [PATCH v2 24/26] devicetree: Add olimex vendor prefix Stefan Wahren <stefan.wahren@i2se.com> - 2016-01-15 07:50 +0100
        Re: [PATCH v2 24/26] devicetree: Add olimex vendor prefix Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-15 09:10 +0100
  [PATCH v2 09/26] ARM: sun5i: dt: Add pll3 and pll7 clocks Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:40 +0100
  [PATCH v2 01/26] reset: Move DT cell size check to the core Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-01-14 16:50 +0100

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