ARM: rockchip: add dma support

A patchset in state Mainline for linux-kernel

From: Heiko Stuebner <heiko@...> Date: Tue, 29 Jul 2014 20:58:39 +0200

All Rockchip SoCs currently supported use pl330 dma controllers. The first patch introduces the concept of critical clocks, stolen from sunxi, as some core clocks shouldn't be disabled under normal circumstances. The patch is necessary, as the amba bus uses strict clock gating, which without this patch results in the core aclk getting disabled halting the system, before other components are able to probe and maybe claim their clocks. As the patches have no compile-time dependency on each other, the patchset could be split with the first patch going through the clock tree and the other three going through arm-soc. Heiko Stuebner (4): clk: rockchip: protect critical clocks from getting disabled ARM: rockchip: enable the AMBA bus ARM: dts: rockchip: add rk3288 dma controllers ARM: dts: rockchip: add rk3188 dma controllers arch/arm/boot/dts/rk3288.dtsi | 27 +++++++++++++++++++++++++++ arch/arm/boot/dts/rk3xxx.dtsi | 27 +++++++++++++++++++++++++++ arch/arm/mach-rockchip/Kconfig | 1 + drivers/clk/rockchip/clk-rk3188.c | 7 +++++++ drivers/clk/rockchip/clk-rk3288.c | 7 +++++++ drivers/clk/rockchip/clk.c | 13 +++++++++++++ drivers/clk/rockchip/clk.h | 1 + 7 files changed, 83 insertions(+) -- 2.0.1

Patches in this set

Statistics

  • 4 individual patches
  • 83 lines added
  • 0 lines removed
 

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