u-boot.git/drivers/i2c, branch v2023.10-rc2

i2c: mediatek: fix I2C usability for MT7981

2023-08-03T13:40:49Z

MT7981 actually uses MediaTek I2C controller v3 instead of v1. This patch adds support for I2C controller v3 fix fixes the I2C usability for MT7981. Signed-off-by: Sam Shih Signed-off-by: Weijie Gao

i2c: designware: Add Kconfig for designware_i2c_pci.c

2023-08-02T03:02:32Z

As the Designware_i2c_pci.c uses ACPI APIs, If some SoCs (StarFive JH7110) contain Designware i2c and PCI but do not use ACPI, This file cannot be compiled. So add a new Kconfig for designware_i2c_pci.c, which depends on ACPIGEN Signed-off-by: Minda Chen Reviewed-by: Leo Yu-Chi Liang

i2c: i2c-gpio: Correctly handle new {sda, scl}-gpios bindings

2023-07-31T11:50:57Z

gpio_request_list_by_name() returns the number of gpios requested. Notably it swallows the underlying -ENOENT when the "gpios" property does not exist. Update the i2c-gpio driver to check for ret == 0 before trying the new sda-gpios/scl-gpios properties. Signed-off-by: Chris Packham

Merge tag v2023.07-rc4 into next

2023-06-12T18:55:33Z

Signed-off-by: Tom Rini

I2C: cdns: Fix broken retry mechanism on arbitration lost.

2023-06-05T04:54:25Z

In the current implementation, in case of I2C arbitration lost, a retry is attempted; the message counter and pointer are reset to the original values and the I2C xfer process is restart from the beginning. However the message counter and message pointer are respectively decremented and incremented by one before attempting any transfer, causing the 1st transfer not to be actually retried (in case of a single transfer, nothing is actually retried at all). This patch fixes this: in case of retry, the 1st transfer is also retried. Tested on a ZynqMP Kria board, with upstream older u-boot, but the involved file and underlying logic seem basically the same. Signed-off-by: Andrea Merello

i2c: rockchip: De-initialize the bus after start bit failure

2023-06-05T04:52:46Z

Failure can happen when i2c is used without initializing pinctrl properly, which U-Boot happily allows in SPL. Without this fix, further I2C access would fail, even after proper pinctrl initialization. Signed-off-by: Ondrej Jirman Cc: Heiko Schocher Reviewed-by: Kever Yang Reviewed-by: Heiko Schocher

arm: Remove ti816x_evm board and ti816x SoC support

2023-05-31T14:11:46Z

This platform is currently unmaintained and untested, so remove it. Further, as it is the only TI816X SoC example, remove related files as well. Signed-off-by: Tom Rini

drivers: use dev_read_addr_ptr when cast to pointer

2023-05-06T09:28:18Z

The fdt_addr_t and phys_addr_t size have been decoupled. A 32bit CPU can expect 64-bit data from the device tree parser, so use dev_read_addr_ptr instead of the dev_read_addr function in the various files in the drivers directory that cast to a pointer. As we are there also streamline the error response to -EINVAL on return. Signed-off-by: Johan Jonker Reviewed-by: Simon Glass

i2c: fsl_i2c: fix m68k transferts

2023-04-11T04:51:56Z

This driver is actually used for powerpc and m68k/ColdFire. On ColdFire SoC's, interrupt flag get not set if IIEN flag (mbcr bit6, interrupt enabled) is not set appropriately before each transfert. As a result, the transfert hangs forever waiting for IIEN. This patch set IIEN before each transfert, while considering this fix as not harming powerpc arch. Signed-off-by: Angelo Dureghello

i2c: imx_lpi2c: Fix misuse the IS_ENABLED for DM clock

2023-04-11T04:45:29Z

The IS_ENABLED, which does not consider SPL build, should be replaced by CONFIG_IS_ENABLED. For the case that we only enable DM CLK for u-boot but not in SPL, the IS_ENABLED(CONFIG_CLK) still returns true, then cause clock failure. Reviewed-by: Peng Fan Signed-off-by: Ye Li Signed-off-by: Peng Fan