diff options
| author | Tom Rini <trini@konsulko.com> | 2021-02-21 11:17:07 -0500 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-02-21 11:17:07 -0500 |
| commit | b732c8780c3f7b47b00bd59e5f6ad7d6ec099d68 (patch) | |
| tree | 2e4d72720d9254f7ba8be5a981368d77d92f91dc /drivers/i2c/i2c-gpio.c | |
| parent | 72993e8e03845f82c3ccf7c72f205c9afd8da6d6 (diff) | |
| parent | 2147a16983d17bcb0438607aa7760494afc27014 (diff) | |
Merge tag 'for-v2021.04' of https://gitlab.denx.de/u-boot/custodians/u-boot-i2c
i2c changes for v2021.04
new feature:
- Allow disabling driver model for I2C in SPL
fixes:
- i2c-gpio: Fix GPIO output
- at91: fix crash when using 'i2c probe'
Diffstat (limited to 'drivers/i2c/i2c-gpio.c')
| -rw-r--r-- | drivers/i2c/i2c-gpio.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/i2c/i2c-gpio.c b/drivers/i2c/i2c-gpio.c index 387f00b2cde..a301a4460b3 100644 --- a/drivers/i2c/i2c-gpio.c +++ b/drivers/i2c/i2c-gpio.c @@ -50,9 +50,10 @@ static void i2c_gpio_sda_set(struct i2c_gpio_bus *bus, int bit) struct gpio_desc *sda = &bus->gpios[PIN_SDA]; if (bit) - dm_gpio_set_dir_flags(sda, GPIOD_IS_IN); + sda->flags = (sda->flags & ~GPIOD_IS_OUT) | GPIOD_IS_IN; else - dm_gpio_set_dir_flags(sda, GPIOD_IS_OUT); + sda->flags = (sda->flags & (~GPIOD_IS_IN & ~GPIOD_IS_OUT_ACTIVE)) | GPIOD_IS_OUT; + dm_gpio_set_dir(sda); } static void i2c_gpio_scl_set(struct i2c_gpio_bus *bus, int bit) @@ -61,14 +62,16 @@ static void i2c_gpio_scl_set(struct i2c_gpio_bus *bus, int bit) int count = 0; if (bit) { - dm_gpio_set_dir_flags(scl, GPIOD_IS_IN); + scl->flags = (scl->flags & ~GPIOD_IS_OUT) | GPIOD_IS_IN; + dm_gpio_set_dir(scl); while (!dm_gpio_get_value(scl) && count++ < 100000) udelay(1); if (!dm_gpio_get_value(scl)) pr_err("timeout waiting on slave to release scl\n"); } else { - dm_gpio_set_dir_flags(scl, GPIOD_IS_OUT); + scl->flags = (scl->flags & (~GPIOD_IS_IN & ~GPIOD_IS_OUT_ACTIVE)) | GPIOD_IS_OUT; + dm_gpio_set_dir(scl); } } @@ -76,11 +79,11 @@ static void i2c_gpio_scl_set(struct i2c_gpio_bus *bus, int bit) static void i2c_gpio_scl_set_output_only(struct i2c_gpio_bus *bus, int bit) { struct gpio_desc *scl = &bus->gpios[PIN_SCL]; - ulong flags = GPIOD_IS_OUT; + scl->flags = (scl->flags & (~GPIOD_IS_IN & ~GPIOD_IS_OUT_ACTIVE)) | GPIOD_IS_OUT; if (bit) - flags |= GPIOD_IS_OUT_ACTIVE; - dm_gpio_set_dir_flags(scl, flags); + scl->flags |= GPIOD_IS_OUT_ACTIVE; + dm_gpio_set_dir(scl); } static void i2c_gpio_write_bit(struct i2c_gpio_bus *bus, int delay, uchar bit) |