linux-kernel - [PATCH] drivers: clk: make gpio-gated clock support optional

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Message-Id: <20191219181914.6015-1-info@metux.net>
Date:   Thu, 19 Dec 2019 19:19:14 +0100
From:   "Enrico Weigelt, metux IT consult" <info@...ux.net>
To:     linux-kernel@...r.kernel.org
Cc:     mturquette@...libre.com, sboyd@...nel.org, matthias.bgg@...il.com,
        linux-clk@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: [PATCH] drivers: clk: make gpio-gated clock support optional

The gpio-gate-clock / gpio-mux-clock driver isn't used much,
just by a few ARM SoCs, so there's no need to always include
it unconditionally.

Thus make it optional, but keep it enabled by default.

Signed-off-by: Enrico Weigelt, metux IT consult <info@...ux.net>
---
 drivers/clk/Kconfig  | 7 +++++++
 drivers/clk/Makefile | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 45653a0e6ecd..880f89c46f6f 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -23,6 +23,13 @@ config COMMON_CLK
 menu "Common Clock Framework"
 	depends on COMMON_CLK
 
+config COMMON_CLK_GPIO
+	tristate "GPIO gated clock support"
+	default y
+	---help---
+	  Supports gpio gated clocks, which can be enabled/disabled via
+	  gpio output.
+
 config COMMON_CLK_WM831X
 	tristate "Clock driver for WM831x/2x PMICs"
 	depends on MFD_WM831X
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 0696a0c1ab58..2b614126672a 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -11,7 +11,7 @@ obj-$(CONFIG_COMMON_CLK)	+= clk-multiplier.o
 obj-$(CONFIG_COMMON_CLK)	+= clk-mux.o
 obj-$(CONFIG_COMMON_CLK)	+= clk-composite.o
 obj-$(CONFIG_COMMON_CLK)	+= clk-fractional-divider.o
-obj-$(CONFIG_COMMON_CLK)	+= clk-gpio.o
+obj-$(CONFIG_COMMON_CLK_GPIO)	+= clk-gpio.o
 ifeq ($(CONFIG_OF), y)
 obj-$(CONFIG_COMMON_CLK)	+= clk-conf.o
 endif
-- 
2.11.0