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u-boot/drivers
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Heiko Schocher ba6fb2f6ac dm: i2c-gpio: add support for clock stretching 
This adds support for clock stretching to the i2c-gpio driver. This is
accomplished by switching the GPIO used for the SCL line to an input
when it should be driven high, and polling on the SCL line value until
it goes high (indicating that the I2C slave is no longer pulling it
low).

This is enabled by default; for gpios which cannot be configured as
inputs, the i2c-gpio,scl-output-only property can be used to fall back
to the previous behavior.

Signed-off-by: Michael Auchter <michael.auchter@ni.com>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
2020-03-16 07:55:06 +01:00
..
adc dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
ata Revert "ata: fsl_ahci: Add sata DM support for Freescale powerpc socs" 2020-02-25 10:16:05 +05:30
axi dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
bios_emulator
block dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
board
bootcount
cache
clk x86: remove dead code in intel_clk_get_rate() 2020-03-05 18:19:40 +08:00
core dm: core: Add a flag for power domain control on device removal 2020-03-02 19:47:38 -07:00
cpu
crypto
ddr sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
demo
dfu dm: core: Require users of devres to include the header 2020-02-05 19:33:46 -07:00
dma dma-mapping: move dma_map_(un)single() to <linux/dma-mapping.h> 2020-02-19 21:27:30 +08:00
fastboot
firmware dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
fpga dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
gpio sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
hwspinlock dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
i2c dm: i2c-gpio: add support for clock stretching 2020-03-16 07:55:06 +01:00
input
led dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
mailbox dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
memory
misc misc: k3_avs: Fix possible NULL pointer deference 2020-02-26 18:35:29 +05:30
mmc mmc: am654_sdhci: Implement workaround for card detect 2020-03-09 08:33:16 +08:00
mtd mtd: nand: Fix on-die ecc issues in arasan_nfc driver 2020-02-28 12:04:10 +01:00
net net: phy: marvell: Unify 88E151x series phy_driver 2020-03-09 18:11:25 -05:00
nvme dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
pch
pci dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
pci_endpoint
phy dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
pinctrl pinctrl: stmfx: update the result type of dm_i2c_reg_read 2020-02-13 18:47:00 +01:00
power power-domain: fix hang in endless loop on i.MX8 2020-03-10 16:29:38 -04:00
pwm
qe
ram ram: rockchip: Fix Kconfig dependency for RAM_ROCKCHIP_DEBUG 2020-02-13 10:10:50 -05:00
remoteproc dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
reset sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
rng stm32mp1: rng: remove superfluous assignment 2020-03-02 09:41:31 +01:00
rtc rtc: m41t62: add compatible for m41st87 2020-03-01 22:07:32 +01:00
scsi
serial serial_lpuart: make clock failure less verbose 2020-03-09 15:06:23 +01:00
smem dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
soc dma-mapping: move dma_map_(un)single() to <linux/dma-mapping.h> 2020-02-19 21:27:30 +08:00
sound dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
spi dm: core: Drop the inclusion of linux/compat.h in dm.h 2020-02-05 21:48:22 -07:00
spmi dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
sysreset dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
tee dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
thermal
timer dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
tpm sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
ufs dma-mapping: move dma_map_(un)single() to <linux/dma-mapping.h> 2020-02-19 21:27:30 +08:00
usb gadget: f_thor: add missing line breaks for pr_err() 2020-03-01 21:58:54 +01:00
video video: meson: keep power domain up after booting 2020-03-02 19:47:38 -07:00
virtio dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
w1 dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
w1-eeprom dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
watchdog watchdog: Don't select CONFIG_WATCHDOG and CONFIG_HW_WATCHDOG at the same time 2020-02-28 10:53:55 -05:00
Kconfig
Makefile