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SubjectRe: [PATCH v2 1/2] i3c: master add i3c_master_attach_boardinfo to preserve boardinfo
On Thu, 21 May 2020 11:32:22 +0200
Parshuram Thombare <pthombar@cadence.com> wrote:

> Boardinfo was lost if I3C object for devices with boardinfo
> available are not created or not added to the I3C device list
> because of some failure e.g. SETDASA failed, retrieve info failed etc
> This patch adds i3c_master_attach_boardinfo which scan boardinfo list
> in the master object and 'attach' it to the I3C device object.
>
> Fixes: 3a379bbcea0a ("i3c: Add core I3C infrastructure")
> Signed-off-by: Parshuram Thombare <pthombar@cadence.com>

This patch looks good to me. I'll apply it just after the merge window.

> ---
> drivers/i3c/master.c | 19 +++++++++++++++++--
> 1 file changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
> index 5f4bd52121fe..3d995f247cb7 100644
> --- a/drivers/i3c/master.c
> +++ b/drivers/i3c/master.c
> @@ -1776,6 +1776,21 @@ static void i3c_master_bus_cleanup(struct i3c_master_controller *master)
> i3c_master_detach_free_devs(master);
> }
>
> +static void i3c_master_attach_boardinfo(struct i3c_dev_desc *i3cdev)
> +{
> + struct i3c_master_controller *master = i3cdev->common.master;
> + struct i3c_dev_boardinfo *i3cboardinfo;
> +
> + list_for_each_entry(i3cboardinfo, &master->boardinfo.i3c, node) {
> + if (i3cdev->info.pid != i3cboardinfo->pid)
> + continue;
> +
> + i3cdev->boardinfo = i3cboardinfo;
> + i3cdev->info.static_addr = i3cboardinfo->static_addr;
> + return;
> + }
> +}
> +
> static struct i3c_dev_desc *
> i3c_master_search_i3c_dev_duplicate(struct i3c_dev_desc *refdev)
> {
> @@ -1831,10 +1846,10 @@ int i3c_master_add_i3c_dev_locked(struct i3c_master_controller *master,
> if (ret)
> goto err_detach_dev;
>
> + i3c_master_attach_boardinfo(newdev);
> +
> olddev = i3c_master_search_i3c_dev_duplicate(newdev);
> if (olddev) {
> - newdev->boardinfo = olddev->boardinfo;
> - newdev->info.static_addr = olddev->info.static_addr;
> newdev->dev = olddev->dev;
> if (newdev->dev)
> newdev->dev->desc = newdev;

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