* [PATCH v1 0/7] Remove ARM platform efm32
@ 2021-01-14 15:16 Uwe Kleine-König
2021-01-14 15:16 ` [PATCH v1 6/7] tty: Drop unused efm32 serial driver Uwe Kleine-König
0 siblings, 1 reply; 3+ messages in thread
From: Uwe Kleine-König @ 2021-01-14 15:16 UTC (permalink / raw)
To: Arnd Bergmann, Olof Johansson, Rob Herring, Greg Kroah-Hartman,
Jiri Slaby, Michael Turquette, Stephen Boyd, Daniel Lezcano,
Thomas Gleixner, Mark Brown, Wolfram Sang
Cc: Uwe Kleine-König, soc, devicetree, linux-arm-kernel, kernel,
linux-clk, linux-kernel, linux-spi, linux-i2c, linux-serial
From: Uwe Kleine-König <uwe.kleine-koenig@pengutronix.de>
Hello,
there are no known active users of the efm32 platform. Given that the
only machine that is supported has only 4 MiB of RAM its use is also
quite limited.
Back then it served as the platform to develop ARMv7-M support in Linux
which was quite fun and still is a blissful memory.
Still given that the code serves no purpose and this probably won't
change anytime soon, remove all platform support.
I'm unsure what to do with the device tree bindings. Should we delete
them, too?
Best regards
Uwe
Uwe Kleine-König (7):
ARM: drop efm32 platform
clk: Drop unused efm32gg driver
clocksource: Drop unused efm32 timer code
spi: Drop unused efm32 bus driver
i2c: Drop unused efm32 bus driver
tty: Drop unused efm32 serial driver
MAINTAINERS: Remove deleted platform efm32
MAINTAINERS | 7 -
arch/arm/Kconfig | 10 +-
arch/arm/Kconfig.debug | 17 -
arch/arm/Makefile | 1 -
arch/arm/boot/dts/Makefile | 2 -
arch/arm/boot/dts/efm32gg-dk3750.dts | 88 ---
arch/arm/boot/dts/efm32gg.dtsi | 177 -----
arch/arm/configs/efm32_defconfig | 98 ---
arch/arm/include/debug/efm32.S | 45 --
arch/arm/mach-efm32/Makefile | 2 -
arch/arm/mach-efm32/Makefile.boot | 4 -
arch/arm/mach-efm32/dtmachine.c | 16 -
arch/arm/mm/Kconfig | 1 -
drivers/clk/Makefile | 1 -
drivers/clk/clk-efm32gg.c | 84 ---
drivers/clocksource/Kconfig | 9 -
drivers/clocksource/Makefile | 1 -
drivers/clocksource/timer-efm32.c | 278 --------
drivers/i2c/busses/Kconfig | 7 -
drivers/i2c/busses/Makefile | 1 -
drivers/i2c/busses/i2c-efm32.c | 469 -------------
drivers/spi/Kconfig | 7 -
drivers/spi/Makefile | 1 -
drivers/spi/spi-efm32.c | 462 ------------
drivers/tty/serial/Kconfig | 13 -
drivers/tty/serial/Makefile | 1 -
drivers/tty/serial/efm32-uart.c | 852 -----------------------
include/linux/platform_data/efm32-spi.h | 15 -
include/linux/platform_data/efm32-uart.h | 19 -
include/uapi/linux/serial_core.h | 3 -
30 files changed, 1 insertion(+), 2690 deletions(-)
delete mode 100644 arch/arm/boot/dts/efm32gg-dk3750.dts
delete mode 100644 arch/arm/boot/dts/efm32gg.dtsi
delete mode 100644 arch/arm/configs/efm32_defconfig
delete mode 100644 arch/arm/include/debug/efm32.S
delete mode 100644 arch/arm/mach-efm32/Makefile
delete mode 100644 arch/arm/mach-efm32/Makefile.boot
delete mode 100644 arch/arm/mach-efm32/dtmachine.c
delete mode 100644 drivers/clk/clk-efm32gg.c
delete mode 100644 drivers/clocksource/timer-efm32.c
delete mode 100644 drivers/i2c/busses/i2c-efm32.c
delete mode 100644 drivers/spi/spi-efm32.c
delete mode 100644 drivers/tty/serial/efm32-uart.c
delete mode 100644 include/linux/platform_data/efm32-spi.h
delete mode 100644 include/linux/platform_data/efm32-uart.h
base-commit: 5c8fe583cce542aa0b84adc939ce85293de36e5e
--
2.29.2
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v1 6/7] tty: Drop unused efm32 serial driver
2021-01-14 15:16 [PATCH v1 0/7] Remove ARM platform efm32 Uwe Kleine-König
@ 2021-01-14 15:16 ` Uwe Kleine-König
[not found] ` <YABkcwgOLhrRZqRK@kroah.com>
0 siblings, 1 reply; 3+ messages in thread
From: Uwe Kleine-König @ 2021-01-14 15:16 UTC (permalink / raw)
To: Arnd Bergmann, Olof Johansson, Greg Kroah-Hartman, Jiri Slaby
Cc: soc, linux-arm-kernel, kernel, linux-serial
Support for this machine was just removed, so drop the now unused UART
driver, too.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
drivers/tty/serial/Kconfig | 13 -------------
drivers/tty/serial/Makefile | 1 -
include/uapi/linux/serial_core.h | 3 ---
3 files changed, 17 deletions(-)
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 34a2899e69c0..83f6ca4bf210 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -1295,14 +1295,6 @@ config SERIAL_AR933X_NR_UARTS
Set this to the number of serial ports you want the driver
to support.
-config SERIAL_EFM32_UART
- tristate "EFM32 UART/USART port"
- depends on ARM && (ARCH_EFM32 || COMPILE_TEST)
- select SERIAL_CORE
- help
- This driver support the USART and UART ports on
- Energy Micro's efm32 SoCs.
-
config SERIAL_MPS2_UART_CONSOLE
bool "MPS2 UART console support"
depends on SERIAL_MPS2_UART
@@ -1316,11 +1308,6 @@ config SERIAL_MPS2_UART
help
This driver support the UART ports on ARM MPS2.
-config SERIAL_EFM32_UART_CONSOLE
- bool "EFM32 UART/USART console support"
- depends on SERIAL_EFM32_UART=y
- select SERIAL_CORE_CONSOLE
-
config SERIAL_ARC
tristate "ARC UART driver support"
select SERIAL_CORE
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index b85d53f9e9ff..ec2b74091f0c 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -73,7 +73,6 @@ obj-$(CONFIG_SERIAL_SIRFSOC) += sirfsoc_uart.o
obj-$(CONFIG_SERIAL_TEGRA) += serial-tegra.o
obj-$(CONFIG_SERIAL_TEGRA_TCU) += tegra-tcu.o
obj-$(CONFIG_SERIAL_AR933X) += ar933x_uart.o
-obj-$(CONFIG_SERIAL_EFM32_UART) += efm32-uart.o
obj-$(CONFIG_SERIAL_ARC) += arc_uart.o
obj-$(CONFIG_SERIAL_RP2) += rp2.o
obj-$(CONFIG_SERIAL_FSL_LPUART) += fsl_lpuart.o
diff --git a/include/uapi/linux/serial_core.h b/include/uapi/linux/serial_core.h
index 62c22045fe65..c4042dcfdc0c 100644
--- a/include/uapi/linux/serial_core.h
+++ b/include/uapi/linux/serial_core.h
@@ -208,9 +208,6 @@
/* Atheros AR933X SoC */
#define PORT_AR933X 99
-/* Energy Micro efm32 SoC */
-#define PORT_EFMUART 100
-
/* ARC (Synopsys) on-chip UART */
#define PORT_ARC 101
--
2.29.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v1 6/7] tty: Drop unused efm32 serial driver
[not found] ` <YABkcwgOLhrRZqRK@kroah.com>
@ 2021-01-14 15:52 ` Uwe Kleine-König
0 siblings, 0 replies; 3+ messages in thread
From: Uwe Kleine-König @ 2021-01-14 15:52 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: linux-serial, Arnd Bergmann, soc, kernel, Olof Johansson,
Jiri Slaby, linux-arm-kernel
[-- Attachment #1: Type: text/plain, Size: 866 bytes --]
On Thu, Jan 14, 2021 at 04:34:11PM +0100, Greg Kroah-Hartman wrote:
> On Thu, Jan 14, 2021 at 04:16:29PM +0100, Uwe Kleine-König wrote:
> > Support for this machine was just removed, so drop the now unused UART
> > driver, too.
> >
> > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> > ---
> > drivers/tty/serial/Kconfig | 13 -------------
> > drivers/tty/serial/Makefile | 1 -
> > include/uapi/linux/serial_core.h | 3 ---
> > 3 files changed, 17 deletions(-)
>
> Shouldn't you delete the .c file for the serial driver in this patch as
> well?
Yes indeed. I did so in the wrong patch (#1) :-\
I will fix this in my tree for v2.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | https://www.pengutronix.de/ |
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2021-01-14 15:16 [PATCH v1 0/7] Remove ARM platform efm32 Uwe Kleine-König
2021-01-14 15:16 ` [PATCH v1 6/7] tty: Drop unused efm32 serial driver Uwe Kleine-König
[not found] ` <YABkcwgOLhrRZqRK@kroah.com>
2021-01-14 15:52 ` Uwe Kleine-König
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