linux-kernel - [PATCH 10/25] clk: sunxi-ng: a10: Use local parent references for CLK_FIXED

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Date:   Mon, 20 May 2019 16:04:06 +0800
From:   Chen-Yu Tsai <wens@...nel.org>
To:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, linux-arm-kernel@...ts.infradead.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 10/25] clk: sunxi-ng: a10: Use local parent references for CLK_FIXED_FACTOR

From: Chen-Yu Tsai <wens@...e.org>

With the new clk parenting code and CLK_FIXED_FACTOR_{HW,FW_NAME}
macros, we can reference parents locally via pointers to struct clk_hw
or DT clock-names.

Convert existing CLK_FIXED_FACTOR definitions to either the _HW or
_FW_NAME variant based on whether the parent clock is internal or
external to the CCU.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 drivers/clk/sunxi-ng/ccu-sun4i-a10.c | 39 ++++++++++++++++++----------
 1 file changed, 25 insertions(+), 14 deletions(-)

diff --git a/drivers/clk/sunxi-ng/ccu-sun4i-a10.c b/drivers/clk/sunxi-ng/ccu-sun4i-a10.c
index 2bbfb3343311..59def849db08 100644
--- a/drivers/clk/sunxi-ng/ccu-sun4i-a10.c
+++ b/drivers/clk/sunxi-ng/ccu-sun4i-a10.c
@@ -168,8 +168,9 @@ static struct ccu_nk pll_periph_base_clk = {
 	},
 };
 
-static CLK_FIXED_FACTOR(pll_periph_clk, "pll-periph", "pll-periph-base",
-			2, 1, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HW(pll_periph_clk, "pll-periph",
+			   &pll_periph_base_clk.common.hw,
+			   2, 1, CLK_SET_RATE_PARENT);
 
 /* Not documented on A10 */
 static struct ccu_div pll_periph_sata_clk = {
@@ -1036,19 +1037,29 @@ static struct ccu_common *sun4i_sun7i_ccu_clks[] = {
 	&out_b_clk.common
 };
 
+static const struct clk_hw *clk_parent_pll_audio[] = {
+	&pll_audio_base_clk.common.hw
+};
+
 /* Post-divider for pll-audio is hardcoded to 1 */
-static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio",
-			"pll-audio-base", 1, 1, CLK_SET_RATE_PARENT);
-static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x",
-			"pll-audio-base", 2, 1, CLK_SET_RATE_PARENT);
-static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x",
-			"pll-audio-base", 1, 1, CLK_SET_RATE_PARENT);
-static CLK_FIXED_FACTOR(pll_audio_8x_clk, "pll-audio-8x",
-			"pll-audio-base", 1, 2, CLK_SET_RATE_PARENT);
-static CLK_FIXED_FACTOR(pll_video0_2x_clk, "pll-video0-2x",
-			"pll-video0", 1, 2, CLK_SET_RATE_PARENT);
-static CLK_FIXED_FACTOR(pll_video1_2x_clk, "pll-video1-2x",
-			"pll-video1", 1, 2, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HWS(pll_audio_clk, "pll-audio",
+			    clk_parent_pll_audio,
+			    1, 1, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HWS(pll_audio_2x_clk, "pll-audio-2x",
+			    clk_parent_pll_audio,
+			    2, 1, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HWS(pll_audio_4x_clk, "pll-audio-4x",
+			    clk_parent_pll_audio,
+			    1, 1, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HWS(pll_audio_8x_clk, "pll-audio-8x",
+			    clk_parent_pll_audio,
+			    1, 2, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HW(pll_video0_2x_clk, "pll-video0-2x",
+			   &pll_video0_clk.common.hw,
+			   1, 2, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HW(pll_video1_2x_clk, "pll-video1-2x",
+			   &pll_video1_clk.common.hw,
+			   1, 2, CLK_SET_RATE_PARENT);
 
 
 static struct clk_hw_onecell_data sun4i_a10_hw_clks = {
-- 
2.20.1