From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jianqun Subject: [PATCH 1/2] rockchip-i2s: dt: add grf requested properties to set power of I2S controller Date: Fri, 29 Aug 2014 15:07:05 -0700 Message-ID: <1409350027-17604-2-git-send-email-jay.xu@rock-chips.com> References: <1409350027-17604-1-git-send-email-jay.xu@rock-chips.com> Return-path: In-Reply-To: <1409350027-17604-1-git-send-email-jay.xu-TNX95d0MmH7DzftRWevZcw@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, perex-/Fr2/VpizcU@public.gmane.org, tiwai-l3A5Bk7waGM@public.gmane.org, yongjun_wei-zrsr2BFq86L20UzCJQGyNP8+0UxHXcjY@public.gmane.org, heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org, dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org, Jianqun List-Id: devicetree@vger.kernel.org Add "rockchip,grf" for driver to get physical address of GRF, and "rockchip,grf-io-vsel" for driver to set voltage for I2S controller according to hardware request. Requested by rk3xxx I2S controller and tested ok on rk3288-pinky board. Change-Id: I2587d15c25e64c569857369326653d8a450bae19 Signed-off-by: Jianqun --- Documentation/devicetree/bindings/sound/rockchip-i2s.txt | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt index 6c55fcf..b995fe6 100644 --- a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt +++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt @@ -9,6 +9,8 @@ Required properties: - "rockchip,rk3066-i2s": for rk3066 - "rockchip,rk3188-i2s", "rockchip,rk3066-i2s": for rk3188 - "rockchip,rk3288-i2s", "rockchip,rk3066-i2s": for rk3288 +- rockchip,grf: physical base address of GRF. +- rockchip,grf-io-vsel: select this if I2S controller powerd by 1.8v. - reg: physical base address of the controller and length of memory mapped region. - interrupts: should contain the I2S interrupt. @@ -26,12 +28,14 @@ Example for rk3288 I2S controller: i2s@ff890000 { compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s"; + rockchip,grf = <&grf>; + rockchip,grf-io-vsel; reg = <0xff890000 0x10000>; interrupts = ; #address-cells = <1>; #size-cells = <0>; dmas = <&pdma1 0>, <&pdma1 1>; - dma-names = "rx", "tx"; + dma-names = "tx", "rx"; clock-names = "i2s_hclk", "i2s_clk"; clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>; }; -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html