On Mon, Apr 11, 2022 at 12:02:09PM +0200, Diego Rondini wrote: > As explained in commit 4af2a33ee5b9 ("cmd: gpio: Make `gpio input` > return pin value again") the `gpio input` is used in scripts to obtain > the value of a pin, despite the fact that CMD_RET_FAILURE is > indistinguishable from a valid pin value. > To be able to detect failures and properly use the value of a GPIO in > scripts we introduce the `gpio read` command that sets the variable > `name` to the value of the pin. Return code of the `gpio read` command > can be used to check for CMD_RET_SUCCESS or CMD_RET_FAILURE. > CONFIG_CMD_GPIO_READ is used to enable the `gpio read` command. > > Signed-off-by: Diego Rondini <diego.rond...@kynetics.com>
Applied to u-boot/master, thanks! -- Tom
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