lkml.org 
[lkml]   [2014]   [Nov]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 1/3] thermal: of: support writable trips via dt
    Date
    From: navneet kumar <navneetk@nvidia.com>

    Support writable trip points configuration from the
    device tree. 'OF' reads this configuration and adjusts
    the 'trips' mask accordingly to allow the 'set_trip_xxx'
    calls to be effective.

    Signed-off-by: Diwakar Tundlam <dtundlam@nvidia.com>
    ---
    drivers/thermal/of-thermal.c | 14 ++++++++++++--
    1 file changed, 12 insertions(+), 2 deletions(-)

    diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
    index 62143ba31001..cf9ee3e82fee 100644
    --- a/drivers/thermal/of-thermal.c
    +++ b/drivers/thermal/of-thermal.c
    @@ -604,7 +604,8 @@ static int thermal_of_get_trip_type(struct device_node *np,
    * Return: 0 on success, proper error code otherwise
    */
    static int thermal_of_populate_trip(struct device_node *np,
    - struct __thermal_trip *trip)
    + struct __thermal_trip *trip,
    + bool *trip_writable)
    {
    int prop;
    int ret;
    @@ -629,6 +630,8 @@ static int thermal_of_populate_trip(struct device_node *np,
    return ret;
    }

    + *trip_writable = of_property_read_bool(np, "writable");
    +
    /* Required for cooling map matching */
    trip->np = np;
    of_node_get(np);
    @@ -657,6 +660,8 @@ thermal_of_build_thermal_zone(struct device_node *np)
    struct __thermal_zone *tz;
    int ret, i;
    u32 prop;
    + bool trip_writable;
    + u64 m = 0;

    if (!np) {
    pr_err("no thermal zone np\n");
    @@ -700,9 +705,14 @@ thermal_of_build_thermal_zone(struct device_node *np)

    i = 0;
    for_each_child_of_node(child, gchild) {
    - ret = thermal_of_populate_trip(gchild, &tz->trips[i++]);
    + trip_writable = false;
    + ret = thermal_of_populate_trip(gchild, &tz->trips[i],
    + &trip_writable);
    if (ret)
    goto free_trips;
    + if (trip_writable)
    + m |= 1ULL << i;
    + i++;
    }

    of_node_put(child);
    --
    1.8.1.5


    \
     
     \ /
      Last update: 2014-11-27 02:21    [W:8.839 / U:0.060 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site