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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-08 10:01:46 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-08 10:01:46 -0700 |
commit | d71048e22f47725a5808ea2e4e1e72fa36c1a788 (patch) | |
tree | 65debebb2964cb4cbde4d29e15730527d686a540 /arch/arm/plat-omap/omap-pm-noop.c | |
parent | 44d51a029f95d49c5c7ccd7808f81904c20c3abd (diff) | |
parent | d21872b3683ff37f73c68993749a6e6aeeaed265 (diff) |
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (143 commits)
omap: mailbox: reorganize headers
omap: mailbox: standarize on 'omap-mailbox'
omap: mailbox: only compile for configured archs
omap: mailbox: simplify omap_mbox_register()
omap: mailbox: reorganize registering
omap: mailbox: add IRQ names
omap: mailbox: remove unecessary fields
omap: mailbox: don't export unecessary symbols
omap: mailbox: update omap1 probing
omap: mailbox: use correct config for omap1
omap: mailbox: 2420 should be detected at run-time
omap: mailbox: reorganize structures
omap: mailbox: trivial cleanups
omap mailbox: Set a device in logical mbox instance for traceability
omap: mailbox: convert block api to kfifo
omap: mailbox: remove (un)likely macros from cold paths
omap: mailbox cleanup: split MODULE_AUTHOR line
omap: mailbox: convert rwlocks to spinlock
Mailbox: disable mailbox interrupt when request queue
Mailbox: new mutext lock for h/w mailbox configuration
...
Diffstat (limited to 'arch/arm/plat-omap/omap-pm-noop.c')
-rw-r--r-- | arch/arm/plat-omap/omap-pm-noop.c | 61 |
1 files changed, 48 insertions, 13 deletions
diff --git a/arch/arm/plat-omap/omap-pm-noop.c b/arch/arm/plat-omap/omap-pm-noop.c index 186bca82cfa..e129ce80c53 100644 --- a/arch/arm/plat-omap/omap-pm-noop.c +++ b/arch/arm/plat-omap/omap-pm-noop.c @@ -34,11 +34,11 @@ struct omap_opp *l3_opps; * Device-driver-originated constraints (via board-*.c files) */ -void omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t) +int omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t) { if (!dev || t < -1) { - WARN_ON(1); - return; + WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__); + return -EINVAL; }; if (t == -1) @@ -58,14 +58,16 @@ void omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t) * * TI CDP code can call constraint_set here. */ + + return 0; } -void omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r) +int omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r) { if (!dev || (agent_id != OCP_INITIATOR_AGENT && agent_id != OCP_TARGET_AGENT)) { - WARN_ON(1); - return; + WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__); + return -EINVAL; }; if (r == 0) @@ -83,13 +85,16 @@ void omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r) * * TI CDP code can call constraint_set here on the VDD2 OPP. */ + + return 0; } -void omap_pm_set_max_dev_wakeup_lat(struct device *dev, long t) +int omap_pm_set_max_dev_wakeup_lat(struct device *req_dev, struct device *dev, + long t) { - if (!dev || t < -1) { - WARN_ON(1); - return; + if (!req_dev || !dev || t < -1) { + WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__); + return -EINVAL; }; if (t == -1) @@ -111,13 +116,15 @@ void omap_pm_set_max_dev_wakeup_lat(struct device *dev, long t) * * TI CDP code can call constraint_set here. */ + + return 0; } -void omap_pm_set_max_sdma_lat(struct device *dev, long t) +int omap_pm_set_max_sdma_lat(struct device *dev, long t) { if (!dev || t < -1) { - WARN_ON(1); - return; + WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__); + return -EINVAL; }; if (t == -1) @@ -139,8 +146,36 @@ void omap_pm_set_max_sdma_lat(struct device *dev, long t) * TI CDP code can call constraint_set here. */ + return 0; } +int omap_pm_set_min_clk_rate(struct device *dev, struct clk *c, long r) +{ + if (!dev || !c || r < 0) { + WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__); + return -EINVAL; + } + + if (r == 0) + pr_debug("OMAP PM: remove min clk rate constraint: " + "dev %s\n", dev_name(dev)); + else + pr_debug("OMAP PM: add min clk rate constraint: " + "dev %s, rate = %ld Hz\n", dev_name(dev), r); + + /* + * Code in a real implementation should keep track of these + * constraints on the clock, and determine the highest minimum + * clock rate. It should iterate over each OPP and determine + * whether the OPP will result in a clock rate that would + * satisfy this constraint (and any other PM constraint in effect + * at that time). Once it finds the lowest-voltage OPP that + * meets those conditions, it should switch to it, or return + * an error if the code is not capable of doing so. + */ + + return 0; +} /* * DSP Bridge-specific constraints |