[PATCH 00/13] MIPS: move pic32.h header file from asm to platform_data

[PATCH 00/13] MIPS: move pic32.h header file from asm to platform_data

[Brian Masney]

There are currently some pic32 MIPS drivers that are in tree, and are
only configured to be compiled on the MIPS pic32 platform. There's a
risk of breaking some of these drivers when migrating drivers away from
legacy APIs. It happened to me with a pic32 clk driver.

Let's go ahead and move the pic32.h from the asm to the platform_data
include directory in the tree. This will make it easier, and cleaner to
enable COMPILE_TEST for some of these pic32 drivers.

I included a patch at the end that shows enabling COMPILE_TEST for a
pic32 clk driver.

Merge Strategy
==============
- Patches 1-12 can go through the MIPS tree.
- Patch 13 I can repost to Claudiu after patches 1-12 are in Linus's
  tree after the next merge window. There is a separate patch set that
  fixes a compiler error I unintentionally introduced via the clk tree.
  https://lore.kernel.org/linux-clk/CABx5tq+eOocJ41X-GSgkGy6S+s+Am1yCS099wqP695NtwALTmg@mail.gmail.com/T/

Signed-off-by: Brian Masney <bmasney@redhat.com>
---
Brian Masney (13):
      MIPS: copy pic32.h header file from asm/mach-pic32/ to include/platform-data/
      MAINTAINERS: add include/linux/platform_data/pic32.h to MIPS entry
      MIPS: update include to use pic32.h from platform_data
      clk: microchip: core: update include to use pic32.h from platform_data
      irqchip/irq-pic32-evic: update include to use pic32.h from platform_data
      mmc: sdhci-pic32: update include to use pic32.h from platform_data
      pinctrl: pic32: update include to use pic32.h from platform_data
      rtc: pic32: update include to use pic32.h from platform_data
      serial: pic32_uart: update include to use pic32.h from platform_data
      watchdog: pic32-dmt: update include to use pic32.h from platform_data
      watchdog: pic32-wdt: update include to use pic32.h from platform_data
      MIPS: drop unused pic32.h header
      clk: microchip: core: allow driver to be compiled with COMPILE_TEST

 MAINTAINERS                                             |  1 +
 arch/mips/pic32/common/reset.c                          |  2 +-
 arch/mips/pic32/pic32mzda/config.c                      |  3 +--
 arch/mips/pic32/pic32mzda/early_clk.c                   |  2 +-
 arch/mips/pic32/pic32mzda/early_console.c               |  2 +-
 drivers/clk/microchip/Kconfig                           |  2 +-
 drivers/clk/microchip/clk-core.c                        |  6 +++++-
 drivers/irqchip/irq-pic32-evic.c                        |  2 +-
 drivers/mmc/host/sdhci-pic32.c                          |  2 +-
 drivers/pinctrl/pinctrl-pic32.c                         |  3 +--
 drivers/rtc/rtc-pic32.c                                 |  3 +--
 drivers/tty/serial/pic32_uart.c                         |  3 +--
 drivers/watchdog/pic32-dmt.c                            |  3 +--
 drivers/watchdog/pic32-wdt.c                            |  3 +--
 .../mach-pic32 => include/linux/platform_data}/pic32.h  | 17 +++++++++--------
 15 files changed, 27 insertions(+), 27 deletions(-)
---
base-commit: f417b7ffcbef7d76b0d8860518f50dae0e7e5eda
change-id: 20260109-mips-pic32-header-move-6ac9965aa70a

Best regards,
-- 
Brian Masney <bmasney@redhat.com>

[PATCH 09/13] serial: pic32_uart: update include to use pic32.h from platform_data

[Brian Masney]

Use the linux/platform_data/pic32.h include instead of
asm/mach-pic32/pic32.h so that the asm variant can be dropped. This
is in preparation for allowing some drivers to be compiled on other
architectures with COMPILE_TEST enabled.

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

---
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Jiri Slaby <jirislaby@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-serial@vger.kernel.org
---
 drivers/tty/serial/pic32_uart.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/pic32_uart.c b/drivers/tty/serial/pic32_uart.c
index 14d50bd7f1bd3575e60e51783bf5b2d821f9168d..8407f85776c07a7495688fc4f95b8672b1543bd0 100644
--- a/drivers/tty/serial/pic32_uart.c
+++ b/drivers/tty/serial/pic32_uart.c
@@ -22,8 +22,7 @@
 #include <linux/tty_flip.h>
 #include <linux/serial_core.h>
 #include <linux/delay.h>
-
-#include <asm/mach-pic32/pic32.h>
+#include <linux/platform_data/pic32.h>
 
 /* UART name and device definitions */
 #define PIC32_DEV_NAME		"pic32-uart"

-- 
2.52.0

Re: [PATCH 00/13] MIPS: move pic32.h header file from asm to platform_data

[Brian Masney]

On Fri, Jan 09, 2026 at 11:41:13AM -0500, Brian Masney wrote:
> There are currently some pic32 MIPS drivers that are in tree, and are
> only configured to be compiled on the MIPS pic32 platform. There's a
> risk of breaking some of these drivers when migrating drivers away from
> legacy APIs. It happened to me with a pic32 clk driver.
> 
> Let's go ahead and move the pic32.h from the asm to the platform_data
> include directory in the tree. This will make it easier, and cleaner to
> enable COMPILE_TEST for some of these pic32 drivers.
> 
> I included a patch at the end that shows enabling COMPILE_TEST for a
> pic32 clk driver.

I didn't CC everyone on patch 1 to this series that copes pic32.h from
the MIPS ASM directory to linux/platform_data/pic32.h. It's available at
the following location if you want to see it:

https://lore.kernel.org/linux-mips/20260109-mips-pic32-header-move-v1-0-99859c55783d@redhat.com/T/#m1e0e50adfe2ea4bf430025660fada7b1468d0fbf

Patch 12 of this series is where I remove the asm variant of pic32.h.

Brian