[PATCH 1/2] ARM: defconfig: Update LPC18xx defconfig

[PATCH 1/2] ARM: defconfig: Update LPC18xx defconfig

[Linus Walleij]

This simply updates the LPC18xx defconfig against the current
Kconfig structure in the kernel so we can make changed to the
defconfig without disturbing noise.

Cc: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/configs/lpc18xx_defconfig | 24 +++++++++---------------
 1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/arch/arm/configs/lpc18xx_defconfig b/arch/arm/configs/lpc18xx_defconfig
index 23df2518203d..3627495b3dd0 100644
--- a/arch/arm/configs/lpc18xx_defconfig
+++ b/arch/arm/configs/lpc18xx_defconfig
@@ -1,5 +1,6 @@
 CONFIG_CROSS_COMPILE="arm-linux-gnueabihf-"
 CONFIG_HIGH_RES_TIMERS=y
+CONFIG_PREEMPT=y
 CONFIG_BLK_DEV_INITRD=y
 # CONFIG_RD_BZIP2 is not set
 # CONFIG_RD_LZMA is not set
@@ -17,22 +18,20 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_EMBEDDED=y
 # CONFIG_VM_EVENT_COUNTERS is not set
 # CONFIG_SLUB_DEBUG is not set
-# CONFIG_LBDAF is not set
-# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
 # CONFIG_MMU is not set
-CONFIG_ARM_SINGLE_ARMV7M=y
 CONFIG_ARCH_LPC18XX=y
 CONFIG_SET_MEM_PARAM=y
 CONFIG_DRAM_BASE=0x28000000
 CONFIG_DRAM_SIZE=0x02000000
 CONFIG_FLASH_MEM_BASE=0x1b000000
 CONFIG_FLASH_SIZE=0x00080000
-CONFIG_PREEMPT=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_ARM_APPENDED_DTB=y
+# CONFIG_LBDAF is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
 CONFIG_BINFMT_FLAT=y
 CONFIG_BINFMT_ZFLAT=y
 CONFIG_BINFMT_SHARED_FLAT=y
@@ -69,7 +68,6 @@ CONFIG_BLK_DEV_SD=y
 # CONFIG_SCSI_LOWLEVEL is not set
 CONFIG_NETDEVICES=y
 # CONFIG_NET_VENDOR_ARC is not set
-# CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_BROADCOM is not set
 # CONFIG_NET_VENDOR_CIRRUS is not set
 # CONFIG_NET_VENDOR_FARADAY is not set
@@ -90,7 +88,6 @@ CONFIG_STMMAC_ETH=y
 CONFIG_SMSC_PHY=y
 # CONFIG_USB_NET_DRIVERS is not set
 # CONFIG_WLAN is not set
-# CONFIG_INPUT_MOUSEDEV is not set
 CONFIG_INPUT_EVDEV=y
 # CONFIG_KEYBOARD_ATKBD is not set
 CONFIG_KEYBOARD_GPIO=y
@@ -101,7 +98,6 @@ CONFIG_KEYBOARD_GPIO_POLLED=y
 # CONFIG_UNIX98_PTYS is not set
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_SERIAL_NONSTANDARD=y
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
 CONFIG_SERIAL_8250_CONSOLE=y
@@ -144,15 +140,14 @@ CONFIG_AMBA_PL08X=y
 CONFIG_LPC18XX_DMAMUX=y
 CONFIG_MEMORY=y
 CONFIG_ARM_PL172_MPMC=y
-CONFIG_PWM=y
-CONFIG_PWM_LPC18XX_SCT=y
 CONFIG_IIO=y
 CONFIG_MMA7455_I2C=y
 CONFIG_LPC18XX_ADC=y
 CONFIG_LPC18XX_DAC=y
 CONFIG_IIO_SYSFS_TRIGGER=y
+CONFIG_PWM=y
+CONFIG_PWM_LPC18XX_SCT=y
 CONFIG_PHY_LPC18XX_USB_OTG=y
-CONFIG_NVMEM=y
 CONFIG_NVMEM_LPC18XX_EEPROM=y
 CONFIG_EXT2_FS=y
 # CONFIG_FILE_LOCKING is not set
@@ -160,9 +155,10 @@ CONFIG_EXT2_FS=y
 # CONFIG_INOTIFY_USER is not set
 CONFIG_JFFS2_FS=y
 # CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_CRC_ITU_T=y
+CONFIG_CRC7=y
 CONFIG_PRINTK_TIME=y
 CONFIG_DEBUG_INFO=y
-# CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_DEBUG_FS=y
 CONFIG_MAGIC_SYSRQ=y
@@ -170,5 +166,3 @@ CONFIG_MAGIC_SYSRQ=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
 CONFIG_DEBUG_LL=y
 CONFIG_EARLY_PRINTK=y
-CONFIG_CRC_ITU_T=y
-CONFIG_CRC7=y
-- 
2.19.2


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[PATCH 2/2] ARM: defconfig: Switch LPC18xx to use PL11x DRM driver

[Linus Walleij]

None of the LPC18xx device trees contains any display settings,
it just defines a device tree node for the CLCD (PL11x) set
as "disabled" and no panels are attached on any device tree.

This I conclude that the hardware is dormant on existing
systems, so we can without any problems switch the defconfig
over from the old ARMCLCD frame buffer driver to the new
PL11x DRM driver.

Cc: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/configs/lpc18xx_defconfig | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/configs/lpc18xx_defconfig b/arch/arm/configs/lpc18xx_defconfig
index 3627495b3dd0..1b72a1af8d54 100644
--- a/arch/arm/configs/lpc18xx_defconfig
+++ b/arch/arm/configs/lpc18xx_defconfig
@@ -117,8 +117,10 @@ CONFIG_WATCHDOG=y
 CONFIG_LPC18XX_WATCHDOG=y
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
-CONFIG_FB=y
-CONFIG_FB_ARMCLCD=y
+CONFIG_DRM=y
+CONFIG_DRM_PL111=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
-- 
2.19.2


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Re: [PATCH 2/2] ARM: defconfig: Switch LPC18xx to use PL11x DRM driver

[Vladimir Zapolskiy]

Hi Linus,

On 12/10/2018 12:16 PM, Linus Walleij wrote:
> None of the LPC18xx device trees contains any display settings,
> it just defines a device tree node for the CLCD (PL11x) set
> as "disabled" and no panels are attached on any device tree.
> 
> This I conclude that the hardware is dormant on existing
> systems, so we can without any problems switch the defconfig
> over from the old ARMCLCD frame buffer driver to the new
> PL11x DRM driver.
> 

Correct.

FWIW I've tested DRM PL111 driver on my board, if you are interested
the pending DT patch is https://patchwork.kernel.org/patch/10636591/

Thank you for the changes, I'll review and collect them for v4.22.

--
Best wishes,
Vladimir

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Re: [PATCH 2/2] ARM: defconfig: Switch LPC18xx to use PL11x DRM driver

[Linus Walleij]

On Mon, Dec 10, 2018 at 12:23 PM Vladimir Zapolskiy <vz@mleia.com> wrote:

> FWIW I've tested DRM PL111 driver on my board, if you are interested
> the pending DT patch is https://patchwork.kernel.org/patch/10636591/

Looks good.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

> Thank you for the changes, I'll review and collect them for v4.22.

OK feel free to use however you like or use your own patches,
all I really want is the PL11x DRM driver to become default
for all platforms using PL11x.

Will send LPC32xx patches next. Same thing there, use it
if you like, all I worry about is the end result :)

Yours,
Linus Walleij

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