bcm63xx/u-boot/drivers/i2c/muxes, branch master

i2c: muxes: pca954x: support PCA9543 I2C switch

2019-04-11T13:21:33Z

The PCA9543 is a 2-channel I2C switch. Signed-off-by: Luca Ceresoli Reviewed-by: Heiko Schocher Acked-by: Michal Simek Reviewed-by: Heiko Schocher

i2c: muxes: pca954x: clarify enable field

2019-04-11T13:21:33Z

The chip_desc.enable field is used only for muxes, not for switches. Document it and remove the unused values. Signed-off-by: Luca Ceresoli Reviewed-by: Heiko Schocher Acked-by: Michal Simek Reviewed-by: Heiko Schocher

i2c: muxes: pca954x: update list of supported devices

2019-04-11T13:21:33Z

The Kconfig help has not been updated while adding PCA9547 and PCA9646. Signed-off-by: Luca Ceresoli Acked-by: Michal Simek Reviewed-by: Heiko Schocher

i2c: mux: Generate longer i2c mux name

2019-02-11T08:38:23Z

For !DM case busses are listed as ZynqMP> i2c bus Bus 0: zynq_0 Bus 1: zynq_0->PCA9544A@0x75:0 Bus 2: zynq_0->PCA9544A@0x75:1 Bus 3: zynq_0->PCA9544A@0x75:2 Bus 4: zynq_1 Bus 5: zynq_1->PCA9548@0x74:0 Bus 6: zynq_1->PCA9548@0x74:1 Bus 7: zynq_1->PCA9548@0x74:2 Bus 8: zynq_1->PCA9548@0x74:3 Bus 9: zynq_1->PCA9548@0x74:4 Bus 10: zynq_1->PCA9548@0x75:0 Bus 11: zynq_1->PCA9548@0x75:1 Bus 12: zynq_1->PCA9548@0x75:2 Bus 13: zynq_1->PCA9548@0x75:3 Bus 14: zynq_1->PCA9548@0x75:4 Bus 15: zynq_1->PCA9548@0x75:5 Bus 16: zynq_1->PCA9548@0x75:6 Bus 17: zynq_1->PCA9548@0x75:7 where is exactly describing i2c bus topology. By moving to DM case i2c mux buses are using names from DT and because i2c-muxes describing sub busses with the same names like i2c@0, etc it is hard to identify which bus is where. Linux is adding topology information to i2c-mux busses to identify them better. This patch is doing the same and composing bus name with topology information. When patch is applied with topology information on zcu102-revA. ZynqMP> i2c bus Bus 0: i2c@ff020000 20: gpio@20, offset len 1, flags 0 21: gpio@21, offset len 1, flags 0 75: i2c-mux@75, offset len 1, flags 0 Bus 2: i2c@ff020000->i2c-mux@75->i2c@0 Bus 3: i2c@ff020000->i2c-mux@75->i2c@1 Bus 4: i2c@ff020000->i2c-mux@75->i2c@2 Bus 1: i2c@ff030000 (active 1) 74: i2c-mux@74, offset len 1, flags 0 75: i2c-mux@75, offset len 1, flags 0 Bus 5: i2c@ff030000->i2c-mux@74->i2c@0 (active 5) 54: eeprom@54, offset len 1, flags 0 Bus 6: i2c@ff030000->i2c-mux@74->i2c@1 Bus 7: i2c@ff030000->i2c-mux@74->i2c@2 Bus 8: i2c@ff030000->i2c-mux@74->i2c@3 Bus 9: i2c@ff030000->i2c-mux@74->i2c@4 Bus 10: i2c@ff030000->i2c-mux@75->i2c@0 Bus 11: i2c@ff030000->i2c-mux@75->i2c@1 Bus 12: i2c@ff030000->i2c-mux@75->i2c@2 Bus 13: i2c@ff030000->i2c-mux@75->i2c@3 Bus 14: i2c@ff030000->i2c-mux@75->i2c@4 Bus 15: i2c@ff030000->i2c-mux@75->i2c@5 Bus 16: i2c@ff030000->i2c-mux@75->i2c@6 Bus 17: i2c@ff030000->i2c-mux@75->i2c@7 Behavior before the patch is applied. ZynqMP> i2c bus Bus 0: i2c@ff020000 20: gpio@20, offset len 1, flags 0 21: gpio@21, offset len 1, flags 0 75: i2c-mux@75, offset len 1, flags 0 Bus 2: i2c@0 Bus 3: i2c@1 Bus 4: i2c@2 Bus 1: i2c@ff030000 (active 1) 74: i2c-mux@74, offset len 1, flags 0 75: i2c-mux@75, offset len 1, flags 0 Bus 5: i2c@0 (active 5) 54: eeprom@54, offset len 1, flags 0 Bus 6: i2c@1 Bus 7: i2c@2 Bus 8: i2c@3 Bus 9: i2c@4 Bus 10: i2c@0 Bus 11: i2c@1 Bus 12: i2c@2 Bus 13: i2c@3 Bus 14: i2c@4 Bus 15: i2c@5 Bus 16: i2c@6 Bus 17: i2c@7 Signed-off-by: Michal Simek Reviewed-by: Simon Glass Reviewed-by: Heiko Schocher

i2c: mux: Covert to livetree functions

2019-01-15T08:06:28Z

Updates i2c muxes drivers to support livetree. Similar changes were done by: "net: zynq_gem: convert to use livetree" (sha1: 26026e695afa794ac018a09e79a48120d322b60d) Signed-off-by: Michal Simek

kconfig: fix typo 'parition'

2018-08-17T13:22:35Z

Replaced misspelled words "parition"/"paritioning" (missing 't') in two Kconfig files by correct words "partition"/"partitioning" Signed-off-by: Simon Goldschmidt Reviewed-by: Philipp Tomsich

i2c-mux: pca954x: support pca9646 i2c switch

2018-08-06T12:28:20Z

Add the PCA9646 support, which is 2-wire bus switch and buffered 4-channel. Signed-off-by: Peng Fan Reviewed-by: Anatolij Gustschin

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

i2c: muxes: pca954x: look up width from chip_desc

2017-10-11T04:17:22Z

Commit 8e6eda7cda6c ("drivers/i2c/muxes/pca954x: Add pca9547 I2C mux support") introduced a chip_desc for the pca954x devices but failed to update pca954x_ofdata_to_platdata() to be aware of it. Make pca954x_ofdata_to_platdata() lookup the chip_desc to validate the device width. Signed-off-by: Chris Packham Reviewed-by: Marek Behun

i2c: muxes: pca954x: Add support for GPIO reset line

2017-09-13T03:35:48Z

This commit adds support for GPIO reset lines matching the common linux "reset-gpios" devicetree binding. Signed-off-by: Moritz Fischer Reviewed-by: Heiko Schocher Reviewed-by: Simon Glass