linux-kernel - [PATCH v2 03/25] clk: Add CLK_HW_INIT_FW_NAME macro using .fw_name in .parent

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Message-Id: <20190611101658.23855-4-wens@kernel.org>
Date:   Tue, 11 Jun 2019 18:16:36 +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@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, Chen-Yu Tsai <wens@...e.org>
Subject: [PATCH v2 03/25] clk: Add CLK_HW_INIT_FW_NAME macro using .fw_name in .parent_data

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

With the new clk parenting code, clk_init_data was expanded to include
.parent_data, for clk drivers that have parents referenced using a
combination of device tree clock-names, clock indices, and/or clk_hw
pointers.

Add a CLK_HW_INIT macro for specifying a single parent from the device
tree using .fw_name in struct clk_parent_data.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 include/linux/clk-provider.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 70aad5cefea7..b19063512a29 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -927,6 +927,17 @@ extern struct of_device_id __clk_of_table;
 		.ops		= _ops,					\
 	})
 
+#define CLK_HW_INIT_FW_NAME(_name, _parent, _ops, _flags)		\
+	(&(struct clk_init_data) {					\
+		.flags		= _flags,				\
+		.name		= _name,				\
+		.parent_data	= (const struct clk_parent_data[]) {	\
+					{ .fw_name = _parent },		\
+				  },					\
+		.num_parents	= 1,					\
+		.ops		= _ops,					\
+	})
+
 #define CLK_HW_INIT_PARENTS(_name, _parents, _ops, _flags)	\
 	(&(struct clk_init_data) {				\
 		.flags		= _flags,			\
-- 
2.20.1