linux-kernel - [PATCH 2/3] clk: exynos5433: Allow audio subsystem clock rate propagation

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Date:   Mon, 05 Feb 2018 15:22:29 +0100
From:   Sylwester Nawrocki <s.nawrocki@...sung.com>
To:     linux-clk@...r.kernel.org
Cc:     sboyd@...eaurora.org, mturquette@...libre.com,
        linux-samsung-soc@...r.kernel.org, cw00.choi@...sung.com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        b.zolnierkie@...sung.com, m.szyprowski@...sung.com,
        Sylwester Nawrocki <s.nawrocki@...sung.com>
Subject: [PATCH 2/3] clk: exynos5433: Allow audio subsystem clock rate
 propagation

CLK_SET_RATE_PARENT flag is added to definitions of clocks on a path
starting from CLK_SCLK_I2S1 up to AUD_PLL in order to allow setting
required audio root clock frequency for the I2S1 block. This is now
only done for the I2S1 block, related CMU_TOP, CMU_PERIC clock
definitions are changed.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@...sung.com>
---
 drivers/clk/samsung/clk-exynos5433.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 74b70ddab4d6..d74361736e64 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -246,14 +246,14 @@ static const struct samsung_fixed_rate_clock top_fixed_clks[] __initconst = {
 
 static const struct samsung_mux_clock top_mux_clks[] __initconst = {
 	/* MUX_SEL_TOP0 */
-	MUX(CLK_MOUT_AUD_PLL, "mout_aud_pll", mout_aud_pll_p, MUX_SEL_TOP0,
-			4, 1),
+	MUX_F(CLK_MOUT_AUD_PLL, "mout_aud_pll", mout_aud_pll_p, MUX_SEL_TOP0,
+	      4, 1, CLK_SET_RATE_PARENT, 0),
 	MUX(CLK_MOUT_ISP_PLL, "mout_isp_pll", mout_isp_pll_p, MUX_SEL_TOP0,
 			0, 1),
 
 	/* MUX_SEL_TOP1 */
-	MUX(CLK_MOUT_AUD_PLL_USER_T, "mout_aud_pll_user_t",
-			mout_aud_pll_user_p, MUX_SEL_TOP1, 12, 1),
+	MUX_F(CLK_MOUT_AUD_PLL_USER_T, "mout_aud_pll_user_t",
+	      mout_aud_pll_user_p, MUX_SEL_TOP1, 12, 1, CLK_SET_RATE_PARENT, 0),
 	MUX(CLK_MOUT_MPHY_PLL_USER, "mout_mphy_pll_user", mout_mphy_pll_user_p,
 			MUX_SEL_TOP1, 8, 1),
 	MUX(CLK_MOUT_MFC_PLL_USER, "mout_mfc_pll_user", mout_mfc_pll_user_p,
@@ -370,8 +370,8 @@ static const struct samsung_mux_clock top_mux_clks[] __initconst = {
 			MUX_SEL_TOP_PERIC1, 16, 1),
 	MUX(CLK_MOUT_SCLK_SPDIF, "mout_sclk_spdif", mout_sclk_spdif_p,
 			MUX_SEL_TOP_PERIC1, 12, 2),
-	MUX(CLK_MOUT_SCLK_AUDIO1, "mout_sclk_audio1", mout_sclk_audio1_p,
-			MUX_SEL_TOP_PERIC1, 4, 2),
+	MUX_F(CLK_MOUT_SCLK_AUDIO1, "mout_sclk_audio1", mout_sclk_audio1_p,
+			MUX_SEL_TOP_PERIC1, 4, 2, CLK_SET_RATE_PARENT, 0),
 	MUX(CLK_MOUT_SCLK_AUDIO0, "mout_sclk_audio0", mout_sclk_audio0_p,
 			MUX_SEL_TOP_PERIC1, 0, 2),
 
@@ -524,12 +524,12 @@ static const struct samsung_div_clock top_div_clks[] __initconst = {
 			DIV_TOP_PERIC2, 0, 4),
 
 	/* DIV_TOP_PERIC3 */
-	DIV(CLK_DIV_SCLK_I2S1, "div_sclk_i2s1", "sclk_audio1",
-			DIV_TOP_PERIC3, 16, 6),
+	DIV_F(CLK_DIV_SCLK_I2S1, "div_sclk_i2s1", "sclk_audio1",
+			DIV_TOP_PERIC3, 16, 6, CLK_SET_RATE_PARENT, 0),
 	DIV(CLK_DIV_SCLK_PCM1, "div_sclk_pcm1", "sclk_audio1",
 			DIV_TOP_PERIC3, 8, 8),
-	DIV(CLK_DIV_SCLK_AUDIO1, "div_sclk_audio1", "mout_sclk_audio1",
-			DIV_TOP_PERIC3, 4, 4),
+	DIV_F(CLK_DIV_SCLK_AUDIO1, "div_sclk_audio1", "mout_sclk_audio1",
+			DIV_TOP_PERIC3, 4, 4, CLK_SET_RATE_PARENT, 0),
 	DIV(CLK_DIV_SCLK_AUDIO0, "div_sclk_audio0", "mout_sclk_audio0",
 			DIV_TOP_PERIC3, 0, 4),
 
@@ -693,7 +693,7 @@ static const struct samsung_gate_clock top_gate_clks[] __initconst = {
 	GATE(CLK_SCLK_SLIMBUS, "sclk_slimbus", "mout_sclk_slimbus",
 			MUX_ENABLE_TOP_PERIC1, 16, 0, 0),
 	GATE(CLK_SCLK_AUDIO1, "sclk_audio1", "div_sclk_audio1",
-			MUX_ENABLE_TOP_PERIC1, 4, 0, 0),
+			MUX_ENABLE_TOP_PERIC1, 4, CLK_SET_RATE_PARENT, 0),
 	GATE(CLK_SCLK_AUDIO0, "sclk_audio0", "div_sclk_audio0",
 			MUX_ENABLE_TOP_PERIC1, 0, 0, 0),
 };
-- 
2.14.2