linux-kernel - [PATCH v2 1/2] clk: analogbits: Allow building the library as a module

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Date:   Mon, 24 Jul 2023 17:42:47 -0700
From:   Samuel Holland <samuel.holland@...ive.com>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     Emil Renner Berthing <emil.renner.berthing@...onical.com>,
        Samuel Holland <samuel.holland@...ive.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] clk: analogbits: Allow building the library as a module

This library is only used by the SiFive PRCI driver. When that driver is
built as a module, it makes sense to build this library as a module too.

Signed-off-by: Samuel Holland <samuel.holland@...ive.com>
---

Changes in v2:
 - Add MODULE_AUTHOR and MODULE_DESCRIPTION

 drivers/clk/analogbits/Kconfig          | 2 +-
 drivers/clk/analogbits/wrpll-cln28hpc.c | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/analogbits/Kconfig b/drivers/clk/analogbits/Kconfig
index 1e291b185438..7d73db0fcd49 100644
--- a/drivers/clk/analogbits/Kconfig
+++ b/drivers/clk/analogbits/Kconfig
@@ -1,3 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config CLK_ANALOGBITS_WRPLL_CLN28HPC
-	bool
+	tristate
diff --git a/drivers/clk/analogbits/wrpll-cln28hpc.c b/drivers/clk/analogbits/wrpll-cln28hpc.c
index 09ca82356399..65d422a588e1 100644
--- a/drivers/clk/analogbits/wrpll-cln28hpc.c
+++ b/drivers/clk/analogbits/wrpll-cln28hpc.c
@@ -28,6 +28,7 @@
 #include <linux/math64.h>
 #include <linux/math.h>
 #include <linux/minmax.h>
+#include <linux/module.h>
 
 #include <linux/clk/analogbits-wrpll-cln28hpc.h>
 
@@ -312,6 +313,7 @@ int wrpll_configure_for_rate(struct wrpll_cfg *c, u32 target_rate,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(wrpll_configure_for_rate);
 
 /**
  * wrpll_calc_output_rate() - calculate the PLL's target output rate
@@ -349,6 +351,7 @@ unsigned long wrpll_calc_output_rate(const struct wrpll_cfg *c,
 
 	return n;
 }
+EXPORT_SYMBOL_GPL(wrpll_calc_output_rate);
 
 /**
  * wrpll_calc_max_lock_us() - return the time for the PLL to lock
@@ -366,3 +369,8 @@ unsigned int wrpll_calc_max_lock_us(const struct wrpll_cfg *c)
 {
 	return MAX_LOCK_US;
 }
+EXPORT_SYMBOL_GPL(wrpll_calc_max_lock_us);
+
+MODULE_AUTHOR("Paul Walmsley <paul.walmsley@...ive.com>");
+MODULE_DESCRIPTION("Analog Bits Wide-Range PLL library");
+MODULE_LICENSE("GPL");
-- 
2.40.1