On 5/29/2024 9:05 AM, Diogo Ivo wrote:
> Enable PTP support for AM65x SR1.0 devices by registering with the IEP
> infrastructure in order to expose a PTP clock to userspace.
>
> Signed-off-by: Diogo Ivo <diogo.ivo@xxxxxxxxxxx>
> ---
> drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c | 49 +++++++++++++++++++++++-
> 1 file changed, 48 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c b/drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c
> index 7b3304bbd7fc..01cad01965dc 100644
> --- a/drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c
> +++ b/drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c
> @@ -1011,16 +1011,42 @@ static int prueth_probe(struct platform_device *pdev)
> dev_dbg(dev, "sram: pa %llx va %p size %zx\n", prueth->msmcram.pa,
> prueth->msmcram.va, prueth->msmcram.size);
>
> + prueth->iep0 = icss_iep_get_idx(np, 0);
> + if (IS_ERR(prueth->iep0)) {
> + ret = dev_err_probe(dev, PTR_ERR(prueth->iep0), "iep0 get failed\n");
> + goto free_pool;
> + }
> +
> + prueth->iep1 = icss_iep_get_idx(np, 1);
> + if (IS_ERR(prueth->iep1)) {
> + ret = dev_err_probe(dev, PTR_ERR(prueth->iep1), "iep1 get failed\n");
> + goto put_iep0;
> + }
> +
> + ret = icss_iep_init(prueth->iep0, NULL, NULL, 0);
> + if (ret) {
> + dev_err_probe(dev, ret, "failed to init iep0\n");
> + goto put_iep;
> + }
> +
> + ret = icss_iep_init(prueth->iep1, NULL, NULL, 0);
> + if (ret) {
> + dev_err_probe(dev, ret, "failed to init iep1\n");
> + goto exit_iep0;
> + }
> +
Once initialized, the icss_iep driver logic must implement the actual
PTP clock interfaces?
Neat.
Reviewed-by: Jacob Keller <jacob.e.keller@xxxxxxxxx>
