Reference to Chapter 3 Clock & Reset Unit (CRU) of RK3288 TRM, i2s0_clkout has two source clock, XIN24M_DIV2 for 12M and clk_i2s0 for more kinds of frequencies, I2S0(i2s_clk) has only single source clock clk_i2s0. i2s0_clkout: generate to output to outside of chip, generally for codec I2S0(i2s_clk): generate for i2s controller inside of chip Jianqun Xu (2): ASoC: rockchip-i2s: dt: add i2s_clkout to list of clocks ASoC: rockchip: i2s: add support for grabbing output clock to codec Documentation/devicetree/bindings/sound/rockchip-i2s.txt | 5 +++-- sound/soc/rockchip/rockchip_i2s.c | 11 +++++++++++ 2 files changed, 14 insertions(+), 2 deletions(-) -- 1.9.1
