linux-kernel - [PATCH v2] clk: rockchip: Allow sclk_i2s0 and i2s0_frac to change their parents rate on rk3188

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Message-Id: <1454054282-16303-1-git-send-email-al.kochet@gmail.com>
Date:	Fri, 29 Jan 2016 10:58:02 +0300
From:	Alexander Kochetkov <al.kochet@...il.com>
To:	Heiko Stuebner <heiko@...ech.de>
Cc:	linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Alexander Kochetkov <al.kochet@...il.com>
Subject: [PATCH v2] clk: rockchip: Allow sclk_i2s0 and i2s0_frac to change their parents rate on rk3188

Allow sclk_i2s0 and i2s0_frac to change their parents rate as
that the upstream dividers are purely there to feed sclk_i2s0

Tested on radxarock-lite.

Signed-off-by: Alexander Kochetkov <al.kochet@...il.com>

Changes in v2:
Rebased on top of 4.5-rc1 of branch[1]

[1] https://git.kernel.org/cgit/linux/kernel/git/mmind/linux-rockchip.git/log/?h=v4.6-clk/next

---
 drivers/clk/rockchip/clk-rk3188.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c
index cc1d09d..629c65d 100644
--- a/drivers/clk/rockchip/clk-rk3188.c
+++ b/drivers/clk/rockchip/clk-rk3188.c
@@ -666,7 +666,7 @@ PNAME(mux_hsicphy_p)		= { "sclk_otgphy0_480m", "sclk_otgphy1_480m",
 				    "gpll", "cpll" };
 
 static struct rockchip_clk_branch rk3188_i2s0_fracmux __initdata =
-	MUX(SCLK_I2S0, "sclk_i2s0", mux_sclk_i2s0_p, 0,
+	MUX(SCLK_I2S0, "sclk_i2s0", mux_sclk_i2s0_p, CLK_SET_RATE_PARENT,
 			RK2928_CLKSEL_CON(3), 8, 2, MFLAGS);
 
 static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = {
@@ -722,7 +722,7 @@ static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = {
 	COMPOSITE_NOMUX(0, "i2s0_pre", "i2s_src", 0,
 			RK2928_CLKSEL_CON(3), 0, 7, DFLAGS,
 			RK2928_CLKGATE_CON(0), 9, GFLAGS),
-	COMPOSITE_FRACMUX(0, "i2s0_frac", "i2s0_pre", 0,
+	COMPOSITE_FRACMUX(0, "i2s0_frac", "i2s0_pre", CLK_SET_RATE_PARENT,
 			RK2928_CLKSEL_CON(7), 0,
 			RK2928_CLKGATE_CON(0), 10, GFLAGS,
 			&rk3188_i2s0_fracmux),
-- 
1.7.9.5