diff options
| author | Juan Gutierrez <jgutierrez@ti.com> | 2012-07-19 17:48:36 -0500 |
|---|---|---|
| committer | Andy Green <andy.green@linaro.org> | 2012-09-07 13:05:38 +0800 |
| commit | f37713fa4dfed356689ef21124d823591db2b4a0 (patch) | |
| tree | a232cf4b5c5acbfb1e9a901855c95284e05848f6 /drivers/rpmsg/omap_rpmsg_resmgr.c | |
| parent | 46773688add33caceda39062fc1cc358b4c93331 (diff) | |
rpmsg: resmgr: support resource-data request from rproc
Support data request from remote processor. Currently only
maximum frequency query is available for ivahd, iss and fdif.
Change-Id: I9bc19f2a299e5756648b0e38aae25e7ce4ac6b02
Signed-off-by: Juan Gutierrez <jgutierrez@ti.com>
Signed-off-by: Paul Hunt <hunt@ti.com>
Signed-off-by: Fernando Guzman Lugo <fernando.lugo@ti.com>
Diffstat (limited to 'drivers/rpmsg/omap_rpmsg_resmgr.c')
| -rw-r--r-- | drivers/rpmsg/omap_rpmsg_resmgr.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/rpmsg/omap_rpmsg_resmgr.c b/drivers/rpmsg/omap_rpmsg_resmgr.c index c856eeee73f7..a0e712430db4 100644 --- a/drivers/rpmsg/omap_rpmsg_resmgr.c +++ b/drivers/rpmsg/omap_rpmsg_resmgr.c @@ -570,6 +570,21 @@ static int _device_bandwidth(struct device *rdev, void *handle, return 0; } +static unsigned long _get_max_freq(void *handle) +{ + struct rprm_gen_device_handle *obj = handle; + struct opp *opp; + unsigned long maxfreq = ULONG_MAX; + + rcu_read_lock(); + opp = opp_find_freq_floor(obj->dev, &maxfreq); + if (IS_ERR(opp)) + maxfreq = 0; + rcu_read_unlock(); + + return maxfreq; +} + static int rprm_iva_request(void **handle, void *data, size_t len) { static struct device *dev; @@ -664,6 +679,7 @@ static struct rprm_res_ops iva_ops = { .latency = _device_latency, .bandwidth = _device_bandwidth, .scale = _device_scale, + .get_max_freq = _get_max_freq, }; static struct rprm_res_ops iva_seq0_ops = { @@ -682,6 +698,7 @@ static struct rprm_res_ops fdif_ops = { .latency = _device_latency, .bandwidth = _device_bandwidth, .scale = _device_scale, + .get_max_freq = _get_max_freq, }; static struct rprm_res_ops sl2if_ops = { @@ -694,6 +711,7 @@ static struct rprm_res_ops iss_ops = { .release = rprm_iss_release, .latency = _device_latency, .bandwidth = _device_bandwidth, + .get_max_freq = _get_max_freq, }; static struct rprm_res omap_res[] = { |