[PATCHv2 0/2] clk: stm32: fix COMPILE_TEST builds

[PATCHv2 0/2] clk: stm32: fix COMPILE_TEST builds

[Rosen Penev]

The STM32MP clock drivers have COMPILE_TEST in their Kconfig depends, but
they fail to build (and are not even compiled) when ARCH_STM32 is disabled.
The first patch adds a missing bitfield.h include so the drivers build
standalone, and the second wires up the Makefile gate to the STM32MP clock
symbol so the directory is actually traversed under COMPILE_TEST.

v2: split up in two patches.

Rosen Penev (2):
  clk: stm32: add missing bitfield.h header
  clk: stm32: allow STM32MP COMPILE_TEST builds

 drivers/clk/Makefile              | 2 +-
 drivers/clk/stm32/clk-stm32mp21.c | 1 +
 drivers/clk/stm32/clk-stm32mp25.c | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

-- 
2.55.0

[PATCHv2 1/2] clk: stm32: add missing bitfield.h header

[Rosen Penev]

It seems some ARM header includes this and the build passes there, but
nowhere else. Note that the driver has COMPILE_TEST in depends.

Fixes: 37ae8501cdb0 ("clk: stm32: introduce clocks for STM32MP21 platfor")
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 drivers/clk/stm32/clk-stm32mp21.c | 1 +
 drivers/clk/stm32/clk-stm32mp25.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/clk/stm32/clk-stm32mp21.c b/drivers/clk/stm32/clk-stm32mp21.c
index c8a37b716bd5..bdb17419908c 100644
--- a/drivers/clk/stm32/clk-stm32mp21.c
+++ b/drivers/clk/stm32/clk-stm32mp21.c
@@ -4,6 +4,7 @@
  * Author: Gabriel Fernandez <gabriel.fernandez@foss.st.com> for STMicroelectronics.
  */
 
+#include <linux/bitfield.h>
 #include <linux/bus/stm32_firewall_device.h>
 #include <linux/clk-provider.h>
 #include <linux/io.h>
diff --git a/drivers/clk/stm32/clk-stm32mp25.c b/drivers/clk/stm32/clk-stm32mp25.c
index 52f0e8a12926..eb0bc918ecee 100644
--- a/drivers/clk/stm32/clk-stm32mp25.c
+++ b/drivers/clk/stm32/clk-stm32mp25.c
@@ -4,6 +4,7 @@
  * Author: Gabriel Fernandez <gabriel.fernandez@foss.st.com> for STMicroelectronics.
  */
 
+#include <linux/bitfield.h>
 #include <linux/bus/stm32_firewall_device.h>
 #include <linux/clk-provider.h>
 #include <linux/io.h>
-- 
2.55.0

Re: [PATCHv2 1/2] clk: stm32: add missing bitfield.h header

[Brian Masney]

On Sun, Jul 19, 2026 at 02:50:39PM -0700, Rosen Penev wrote:
> It seems some ARM header includes this and the build passes there, but
> nowhere else. Note that the driver has COMPILE_TEST in depends.
> 
> Fixes: 37ae8501cdb0 ("clk: stm32: introduce clocks for STM32MP21 platfor")
> Signed-off-by: Rosen Penev <rosenp@gmail.com>

Reviewed-by: Brian Masney <bmasney@redhat.com>

[PATCHv2 2/2] clk: stm32: allow STM32MP COMPILE_TEST builds

[Rosen Penev]

COMMON_CLK_STM32MP already allows COMPILE_TEST, but the parent clock
Makefile only descends into drivers/clk/stm32 for ARCH_STM32.  Use the
STM32MP clock symbol for that directory gate instead.

Tested with:
make LLVM=1 ARCH=loongarch drivers/clk/stm32/

Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 drivers/clk/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 8383f9f1da51..bbcedf5d60ea 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -151,7 +151,7 @@ obj-y					+= spacemit/
 obj-$(CONFIG_PLAT_SPEAR)		+= spear/
 obj-y					+= sprd/
 obj-$(CONFIG_ARCH_STI)			+= st/
-obj-$(CONFIG_ARCH_STM32)		+= stm32/
+obj-$(CONFIG_COMMON_CLK_STM32MP)	+= stm32/
 obj-y					+= starfive/
 obj-$(CONFIG_ARCH_SUNXI)		+= sunxi/
 obj-y					+= sunxi-ng/
-- 
2.55.0

Re: [PATCHv2 2/2] clk: stm32: allow STM32MP COMPILE_TEST builds

[Brian Masney]

On Sun, Jul 19, 2026 at 02:50:40PM -0700, Rosen Penev wrote:
> COMMON_CLK_STM32MP already allows COMPILE_TEST, but the parent clock
> Makefile only descends into drivers/clk/stm32 for ARCH_STM32.  Use the
> STM32MP clock symbol for that directory gate instead.
> 
> Tested with:
> make LLVM=1 ARCH=loongarch drivers/clk/stm32/
> 
> Assisted-by: Codex:GPT-5.5
> Signed-off-by: Rosen Penev <rosenp@gmail.com>

Reviewed-by: Brian Masney <bmasney@redhat.com>