On 6/3/21 11:21 AM, Jorge Ramirez-Ortiz wrote:
> Use the more generic reset-gpios property name.
>
> Signed-off-by: Jorge Ramirez-Ortiz
> ---
>
> v3: maintained the legacy property in the docs
>
> .../tpm2/tis-tpm2-spi.txt | 3 ++-
> drivers/tpm/tpm2_tis_spi.c| 23 ---
> 2 files changed, 17 insertions(+), 9 deletions(-)
>
> diff --git a/doc/device-tree-bindings/tpm2/tis-tpm2-spi.txt
> b/doc/device-tree-bindings/tpm2/tis-tpm2-spi.txt
> index 3a2ee4bd17..521550bf67 100644
> --- a/doc/device-tree-bindings/tpm2/tis-tpm2-spi.txt
> +++ b/doc/device-tree-bindings/tpm2/tis-tpm2-spi.txt
> @@ -6,7 +6,8 @@ Required properties:
> - reg: SPI Chip select
>
> Optional properties:
> -- gpio-reset : Reset GPIO (if not connected to the SoC reset line)
> +- reset-gpios: Reset GPIO (if not connected to the SoC reset
> line)
> +- gpio-reset : Reset GPIO (will be deprecated, use reset-gpios
> instead)
nit: I would use "is deprecated"
> - spi-max-frequency : See spi-bus.txt
>
> Example:
> diff --git a/drivers/tpm/tpm2_tis_spi.c b/drivers/tpm/tpm2_tis_spi.c
> index 4b33ac8fd3..73e7c342aa 100644
> --- a/drivers/tpm/tpm2_tis_spi.c
> +++ b/drivers/tpm/tpm2_tis_spi.c
> @@ -589,18 +589,25 @@ static int tpm_tis_spi_probe(struct udevice *dev)
> if (CONFIG_IS_ENABLED(DM_GPIO)) {
> struct gpio_desc reset_gpio;
>
> - ret = gpio_request_by_name(dev, "gpio-reset", 0,
> + ret = gpio_request_by_name(dev, "reset-gpios", 0,
> _gpio, GPIOD_IS_OUT);
> if (ret) {
> - log(LOGC_NONE, LOGL_NOTICE, "%s: missing reset GPIO\n",
> - __func__);
> - } else {
> - dm_gpio_set_value(_gpio, 1);
> - mdelay(1);
> - dm_gpio_set_value(_gpio, 0);
> + /* legacy reset */
> + ret = gpio_request_by_name(dev, "gpio-reset", 0,
> +_gpio, GPIOD_IS_OUT);
> + if (ret) {
> + log(LOGC_NONE, LOGL_NOTICE,
> + "%s: missing reset GPIO\n", __func__);
> + goto init;
> + }
> + log(LOGC_NONE, LOGL_NOTICE,
> + "%s: gpio-reset will be deprecated\n", __func__);
ditto.
> }
> + dm_gpio_set_value(_gpio, 1);
> + mdelay(1);
> + dm_gpio_set_value(_gpio, 0);
> }
> -
> +init:
> /* Ensure a minimum amount of time elapsed since reset of the TPM */
> mdelay(drv_data->time_before_first_cmd_ms);
>
>
With above changes
Acked-by: Michal Simek
Thanks,
Michal
