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    Subject[PATCH v5 17/23] pinctrl: Probe pinctrl devices on demand
    Date
    When looking up a pin controller through its OF node, probe it if it
    hasn't already.

    The goal is to reduce deferred probes to a minimum, as it makes it very
    cumbersome to find out why a device failed to probe, and can introduce
    very big delays in when a critical device is probed.

    Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
    ---

    Changes in v5: None
    Changes in v4: None
    Changes in v3: None
    Changes in v2: None

    drivers/pinctrl/devicetree.c | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c
    index fe04e748dfe4..f5340b8e1dbe 100644
    --- a/drivers/pinctrl/devicetree.c
    +++ b/drivers/pinctrl/devicetree.c
    @@ -18,6 +18,7 @@

    #include <linux/device.h>
    #include <linux/of.h>
    +#include <linux/of_device.h>
    #include <linux/pinctrl/pinctrl.h>
    #include <linux/slab.h>

    @@ -110,6 +111,8 @@ static int dt_to_map_one_config(struct pinctrl *p, const char *statename,
    struct pinctrl_map *map;
    unsigned num_maps;

    + of_device_probe(np_config);
    +
    /* Find the pin controller containing np_config */
    np_pctldev = of_node_get(np_config);
    for (;;) {
    --
    2.4.3


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