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1b9ee2882e
u-boot-brain/drivers
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Alper Nebi Yasak 1b9ee2882e pwm: Add a driver for Chrome OS EC PWM 
This PWM is used in rk3399-gru-bob and rk3399-gru-kevin to control
the display brightness. We can only change the duty cycle, so on
set_config() we just try to match the duty cycle that dividing duty_ns
by period_ns gives us. To disable, we set the duty cycle to zero while
keeping the old value for when we want to re-enable it.

The cros_ec_set_pwm_duty() function is taken from Depthcharge's
cros_ec_set_bl_pwm_duty() but modified to use the generic pwm type.
The driver itself is very loosely based on rk_pwm.c for the general pwm
driver structure.

The devicetree binding file is from Linux, before it was converted to
YAML at 5df5a577a6b4 ("dt-bindings: pwm: Convert google,cros-ec-pwm.txt
to YAML format") in their repo.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-04-10 16:08:39 +02:00
..
adc adc: meson-saradc: add support for getting reference voltage value 2021-02-18 11:37:26 +01:00
ata ahci: mediatek: fix undefined reference of dev_err 2021-03-19 10:35:19 -04:00
axi dm: treewide: Rename auto_alloc_size members to be shorter 2020-12-13 08:00:25 -07:00
bios_emulator common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
block sandbox: Provide a way to bind fixed/removeable devices 2021-03-27 15:04:31 +13:00
bootcount common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
bus bus: ti-sysc: change in a normal driver 2021-03-22 19:23:27 +13:00
button button: adc: fix treshold typo 2021-03-08 10:32:34 +01:00
cache common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
clk clk: mpfs_clk: Enable DM_FLAG_PRE_RELOC flag 2021-04-08 15:37:30 +08:00
core simple-pm-bus: Use -ENOSYS for checking missing system call 2021-04-06 16:33:19 +12:00
cpu common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
crypto crypto: fsl: refactor for 32 bit version CAAM support on ARM64 2021-04-08 20:29:53 +02:00
ddr imx8mp: refine power on imx8mp board 2021-04-08 09:18:29 +02:00
demo common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
dfu dfu: dfu_sf: avoid double free of SPI device 2021-03-25 20:15:30 +01:00
dma dma: bcm6348: incorrect buffer allocation 2021-01-18 15:23:06 -05:00
fastboot fastboot: add UUU command UCmd and ACmd support 2021-02-26 15:30:55 +01:00
firmware scmi: cosmetic: reorder include files 2021-03-11 17:03:19 +01:00
fpga arm: socfpga: Move Stratix10 and Agilex to use TARGET_SOCFPGA_SOC64 2021-03-08 10:59:10 +08:00
gpio x86: Probe device if needed in intel_gpio_xlate() 2021-03-27 13:59:36 +13:00
hwspinlock common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
i2c Revert "sandbox: Disable I2C emulators in SPL" 2021-03-26 17:03:08 +13:00
input common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
led dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13 16:51:09 -07:00
mailbox common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
memory memory: stm32-fmc2: migrate trace to dev and log macro 2021-01-13 09:52:58 +01:00
misc pwm: Add a driver for Chrome OS EC PWM 2021-04-10 16:08:39 +02:00
mmc u-boot-imx-20210409 2021-04-09 10:08:52 -04:00
mtd spl: fit: nand: allow for non-page-aligned elements 2021-04-08 20:29:53 +02:00
mux dm: Use access methods for dev/uclass private data 2021-01-05 12:24:40 -07:00
net net: designware: remove amlogic compatibles 2021-04-06 11:10:29 +02:00
nvme nvme: Elaborate on cache maintenance operation in get/set_features 2021-03-19 10:36:55 -04:00
pch dm: treewide: Rename auto_alloc_size members to be shorter 2020-12-13 08:00:25 -07:00
pci Prepare v2021.04-rc5 2021-03-29 18:00:21 -04:00
pci_endpoint common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
phy Merge branch '2021-02-02-drop-asm_global_data-when-unused' 2021-02-15 10:16:45 -05:00
pinctrl pinctrl: Return -ENOSYS when system call is not available 2021-04-06 16:33:19 +12:00
power power: pca9450: add a new parameter for power_pca9450_init 2021-04-08 09:18:29 +02:00
pwm pwm: Add a driver for Chrome OS EC PWM 2021-04-10 16:08:39 +02:00
qe common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
ram riscv: sifive: Rename fu540 board to unleashed 2021-04-08 15:37:29 +08:00
remoteproc Merge branch '2021-02-02-drop-asm_global_data-when-unused' 2021-02-15 10:16:45 -05:00
reset riscv: sifive: Rename fu540 board to unleashed 2021-04-08 15:37:29 +08:00
rng rng: iproc_rng200: Enable support for RPi4 armv7 2021-03-02 13:53:48 +01:00
rtc rtc: add armada38x driver 2021-04-08 08:44:51 +02:00
scsi dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13 16:51:09 -07:00
serial x86: Make coreboot sysinfo available to any x86 board 2021-03-27 13:59:37 +13:00
smem Merge branch '2021-02-02-drop-asm_global_data-when-unused' 2021-02-15 10:16:45 -05:00
soc dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13 16:51:09 -07:00
sound tegra: i2c: Drop LOG_DEBUG 2021-03-27 13:59:36 +13:00
spi Xilinx changes for v2021.07 2021-03-31 09:47:30 -04:00
spmi common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
sysinfo dm: treewide: Rename auto_alloc_size members to be shorter 2020-12-13 08:00:25 -07:00
sysreset Prepare v2021.04-rc4 2021-03-15 12:15:38 -04:00
tee drivers: tee: sandbox: SCP03 control emulator 2021-03-14 11:50:13 -04:00
thermal thermal: imx_tmu: enable monitoring and default alert/critical 2021-03-01 10:21:36 +01:00
timer timer: sifive_clint: Support the official clint DT bindings 2021-04-08 15:37:29 +08:00
tpm tpm: Correct warning on 32-bit build 2021-03-13 13:14:52 -05:00
ufs dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13 16:51:09 -07:00
usb Merge https://source.denx.de/u-boot/custodians/u-boot-usb 2021-04-06 14:11:21 -04:00
video video: backlight: Support PWMs without a known period_ns 2021-04-10 16:07:12 +02:00
virtio virtio: Fix VirtIO BLK driver dependency 2021-03-05 10:25:43 +05:30
w1 w1: mxc: fix build 2021-01-23 11:30:31 +01:00
w1-eeprom dm: treewide: Rename 'platdata' variables to just 'plat' 2020-12-13 16:51:08 -07:00
watchdog wdt: dw: Free the clock on error 2021-04-08 15:37:27 +08:00
xen common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
Kconfig board: Rename uclass to sysinfo 2020-11-06 10:18:20 +08:00
Makefile cpu: Rename SPL_CPU_SUPPORT to SPL_CPU 2021-03-27 15:04:31 +13:00