diff options
Diffstat (limited to 'arch/arm/plat-omap/omap_device.c')
-rw-r--r-- | arch/arm/plat-omap/omap_device.c | 84 |
1 files changed, 67 insertions, 17 deletions
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c index c490240bb82c..5b6974269107 100644 --- a/arch/arm/plat-omap/omap_device.c +++ b/arch/arm/plat-omap/omap_device.c @@ -1,4 +1,3 @@ - /* * omap_device implementation * @@ -153,21 +152,19 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_lat) act_lat = timespec_to_ns(&c); dev_dbg(&od->pdev->dev, - "omap_device: pm_lat %d: activate: elapsed time " - "%llu nsec\n", od->pm_lat_level, act_lat); + "omap_device: pm_lat %d: activate: elapsed time %llu nsec\n", + od->pm_lat_level, act_lat); if (act_lat > odpl->activate_lat) { odpl->activate_lat_worst = act_lat; if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) { odpl->activate_lat = act_lat; dev_dbg(&od->pdev->dev, - "new worst case activate latency " - "%d: %llu\n", + "new worst case activate latency %d: %llu\n", od->pm_lat_level, act_lat); } else dev_warn(&od->pdev->dev, - "activate latency %d " - "higher than exptected. (%llu > %d)\n", + "activate latency %d higher than expected. (%llu > %d)\n", od->pm_lat_level, act_lat, odpl->activate_lat); } @@ -220,21 +217,19 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat) deact_lat = timespec_to_ns(&c); dev_dbg(&od->pdev->dev, - "omap_device: pm_lat %d: deactivate: elapsed time " - "%llu nsec\n", od->pm_lat_level, deact_lat); + "omap_device: pm_lat %d: deactivate: elapsed time %llu nsec\n", + od->pm_lat_level, deact_lat); if (deact_lat > odpl->deactivate_lat) { odpl->deactivate_lat_worst = deact_lat; if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) { odpl->deactivate_lat = deact_lat; dev_dbg(&od->pdev->dev, - "new worst case deactivate latency " - "%d: %llu\n", + "new worst case deactivate latency %d: %llu\n", od->pm_lat_level, deact_lat); } else dev_warn(&od->pdev->dev, - "deactivate latency %d " - "higher than exptected. (%llu > %d)\n", + "deactivate latency %d higher than expected. (%llu > %d)\n", od->pm_lat_level, deact_lat, odpl->deactivate_lat); } @@ -266,10 +261,10 @@ static void _add_clkdev(struct omap_device *od, const char *clk_alias, return; } - r = omap_clk_get_by_name(clk_name); + r = clk_get(NULL, clk_name); if (IS_ERR(r)) { dev_err(&od->pdev->dev, - "omap_clk_get_by_name for %s failed\n", clk_name); + "clk_get for %s failed\n", clk_name); return; } @@ -449,8 +444,8 @@ static int omap_device_count_resources(struct omap_device *od) for (i = 0; i < od->hwmods_cnt; i++) c += omap_hwmod_count_resources(od->hwmods[i]); - pr_debug("omap_device: %s: counted %d total resources across %d " - "hwmods\n", od->pdev->name, c, od->hwmods_cnt); + pr_debug("omap_device: %s: counted %d total resources across %d hwmods\n", + od->pdev->name, c, od->hwmods_cnt); return c; } @@ -925,6 +920,61 @@ int omap_device_shutdown(struct platform_device *pdev) } /** + * omap_device_assert_hardreset - set a device's hardreset line + * @pdev: struct platform_device * to reset + * @name: const char * name of the reset line + * + * Set the hardreset line identified by @name on the IP blocks + * associated with the hwmods backing the platform_device @pdev. All + * of the hwmods associated with @pdev must have the same hardreset + * line linked to them for this to work. Passes along the return value + * of omap_hwmod_assert_hardreset() in the event of any failure, or + * returns 0 upon success. + */ +int omap_device_assert_hardreset(struct platform_device *pdev, const char *name) +{ + struct omap_device *od = to_omap_device(pdev); + int ret = 0; + int i; + + for (i = 0; i < od->hwmods_cnt; i++) { + ret = omap_hwmod_assert_hardreset(od->hwmods[i], name); + if (ret) + break; + } + + return ret; +} + +/** + * omap_device_deassert_hardreset - release a device's hardreset line + * @pdev: struct platform_device * to reset + * @name: const char * name of the reset line + * + * Release the hardreset line identified by @name on the IP blocks + * associated with the hwmods backing the platform_device @pdev. All + * of the hwmods associated with @pdev must have the same hardreset + * line linked to them for this to work. Passes along the return + * value of omap_hwmod_deassert_hardreset() in the event of any + * failure, or returns 0 upon success. + */ +int omap_device_deassert_hardreset(struct platform_device *pdev, + const char *name) +{ + struct omap_device *od = to_omap_device(pdev); + int ret = 0; + int i; + + for (i = 0; i < od->hwmods_cnt; i++) { + ret = omap_hwmod_deassert_hardreset(od->hwmods[i], name); + if (ret) + break; + } + + return ret; +} + +/** * omap_device_align_pm_lat - activate/deactivate device to match wakeup lat lim * @od: struct omap_device * * |