On Tue, Mar 13, 2018 at 05:34:32PM +0800, Li Jun wrote:
> User can define the typec port properties in tcpci node to setup
> the port config.
>
> Signed-off-by: Li Jun <jun...@nxp.com>
> ---
> drivers/staging/typec/tcpci.c | 63
> +++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 63 insertions(+)
>
> diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
> index 24ad44f..ba4627f 100644
> --- a/drivers/staging/typec/tcpci.c
> +++ b/drivers/staging/typec/tcpci.c
> @@ -466,6 +466,9 @@ static const struct regmap_config tcpci_regmap_config = {
>
> static int tcpci_parse_config(struct tcpci *tcpci)
> {
> + struct tcpc_config *tcfg;
> + int ret = -EINVAL;
> +
> tcpci->controls_vbus = true; /* XXX */
>
> tcpci->tcpc.fwnode = device_get_named_child_node(tcpci->dev,
> @@ -475,6 +478,66 @@ static int tcpci_parse_config(struct tcpci *tcpci)
> return -EINVAL;
> }
>
> + tcpci->tcpc.config = devm_kzalloc(tcpci->dev, sizeof(*tcfg),
> + GFP_KERNEL);
> + if (!tcpci->tcpc.config)
> + return -ENOMEM;
> +
> + tcfg = tcpci->tcpc.config;
> +
> + /* USB data support is optional */
> + ret = typec_get_data_type(tcpci->tcpc.fwnode);
> + if (ret < 0)
> + dev_dbg(tcpci->dev, "USB data is not supported.\n");
> + else
> + tcfg->data = ret;
> +
> + /* Get port power type */
> + ret = typec_get_power_type(tcpci->tcpc.fwnode);
> + if (ret < 0) {
> + dev_err(tcpci->dev, "failed to get correct port type.\n");
> + return ret;
> + }
> + tcfg->type = ret;
> +
> + if (tcfg->type == TYPEC_PORT_SNK)
> + goto sink;
> +
> + tcfg->src_pdo = devm_kcalloc(tcpci->dev, PDO_MAX_OBJECTS,
> + sizeof(*tcfg->src_pdo), GFP_KERNEL);
> + if (!tcfg->src_pdo)
> + return -ENOMEM;
> +
> + /* Get source capability */
> + ret = tcpm_get_src_config(tcpci->tcpc.fwnode, tcfg);
> + if (ret < 0) {
> + dev_err(tcpci->dev, "failed to get source pdo %d\n", ret);
> + return -EINVAL;
> + }
> +
> + if (tcfg->type == TYPEC_PORT_SRC)
> + return 0;
> +
> + /* Get the preferred power role for DRP */
> + ret = typec_get_preferred_role(tcpci->tcpc.fwnode);
> + if (ret < 0) {
> + dev_err(tcpci->dev, "failed to get correct preferred role.\n");
> + return ret;
> + }
> + tcfg->default_role = ret;
> +sink:
> + tcfg->snk_pdo = devm_kcalloc(tcpci->dev, PDO_MAX_OBJECTS,
> + sizeof(*tcfg->snk_pdo), GFP_KERNEL);
> + if (!tcfg->snk_pdo)
> + return -ENOMEM;
> +
> + /* Get power sink config */
> + ret = tcpm_get_snk_config(tcpci->tcpc.fwnode, tcfg);
> + if (ret < 0) {
> + dev_err(tcpci->dev, "failed to get sink configs %d\n", ret);
> + return -EINVAL;
> + }
> +
> return 0;
> }
I think everything here can be done in tcpm.c.
Since you are checking some device properties in tcpm.c in any case
(in tcpm_get_snk_config() and tcpm_get_src_config()), you might as
well check all these there as well.
Br,
--
heikki
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