bcm63xx/u-boot/drivers/i2c/imx_lpi2c.c, branch master

i2c: imx_lpi2c: fix typo and register base address format

2018-10-22T12:35:57Z

Output the register base address in hex notation. Signed-off-by: Anatolij Gustschin Acked-by: Heiko Schocher

i2c: imx_lpi2c: add uclass api support

2018-08-06T12:28:23Z

Use uclass clk api to get per clk when CONFIG_CLK enabled. Signed-off-by: Peng Fan Reviewed-by: Anatolij Gustschin

lpi2c: Add bus busy error handling

2018-07-12T09:09:42Z

When doing "i2c dev 4; i2c probe" with ENET daughter card connected on iMX8QXP MEK board, we met a i2c bus busy issue, that the BBF of lpi2c always show busy, but the master is idle, and stop is detected (SDF set). This patch addes a handling to re-init the lpi2c master for this case. Then the issue can be worked around. Signed-off-by: Ye Li Acked-by: Peng Fan Reviewed-by: Heiko Schocher

lpi2c: Fix bus stop problem in xfer

2018-07-12T09:09:23Z

In xfer function, both bus_i2c_read and bus_i2c_write will send a STOP command. This causes a problem when reading register data from i2c device. Generally two operations comprise the register data reading: 1. Write the register address to i2c device. START | chip_addr | W | ACK | register_addr | ACK | 2. Read the Data from i2c device. START | chip_addr | R | ACK | DATA | NACK | STOP The STOP command should happen at the end of the transfer, otherwise we will always get data from register address 0 Signed-off-by: Ye Li Acked-by: Peng Fan Reviewed-by: Heiko Schocher

imx: lpi2c: fix clock issue when NACK detected

2018-07-12T09:09:07Z

For LPI2C IP, NACK is detected by the rising edge of the ninth clock. In current uboot driver, once NACK is detected, it will reset and then disable LPI2C master. As a result, we can never see the falling edge of the ninth clock. Signed-off-by: Gao Pan Signed-off-by: Peng Fan Reviewed-by: Heiko Schocher

imx_lpi2c: Update lpi2c driver to support imx8

2018-07-12T09:08:41Z

Add compatible string for i.MX8 and move imx_lpi2c.h from mx7ulp directory to u-boot include directory as a common header file. Signed-off-by: Ye Li Signed-off-by: Peng Fan Reviewed-by: Heiko Schocher

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12Z

When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini

Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR

2018-04-27T18:54:48Z

We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini

i2c: lpi2c: remove superfluous assignments

2018-03-23T07:28:49Z

In lpi2c_status_t result = A; result = B; the first assignment has no effect. Let's remove it. Signed-off-by: Heinrich Schuchardt

i2c: lpi2c: do not add 4 for bus seq

2018-01-16T05:58:59Z

The number 4 is dedicated on i.MX7ULP, but lpi2c will be reused on i.MX8, 4 is not valid. The seq number could be configured by alias node. The following patch will use i2c4 as the begin for i.MX7ULP. Signed-off-by: Peng Fan