From d66b3fe436a296f102e8944247972fc0c17ddf26 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Thu, 21 Jul 2011 13:58:51 -0700 Subject: [PATCH] OMAP: omap_device: decouple platform_device from omap_device Rather than embedding a struct platform_device inside a struct omap_device, decouple them, leaving only a pointer to the platform_device inside the omap_device. Use the arch-specific data field of the platform_device (pdev_archdata) to add an omap_device pointer after the platform_device has been created. Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/opp.c | 2 +- arch/arm/plat-omap/include/plat/omap_device.h | 7 +- arch/arm/plat-omap/omap_device.c | 100 +++++++++--------- 3 files changed, 58 insertions(+), 51 deletions(-) diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c index ab8b35b780b5..9262a6b47702 100644 --- a/arch/arm/mach-omap2/opp.c +++ b/arch/arm/mach-omap2/opp.c @@ -69,7 +69,7 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def, opp_def->hwmod_name, i); return -EINVAL; } - dev = &oh->od->pdev.dev; + dev = &oh->od->pdev->dev; r = opp_add(dev, opp_def->freq, opp_def->u_volt); if (r) { diff --git a/arch/arm/plat-omap/include/plat/omap_device.h b/arch/arm/plat-omap/include/plat/omap_device.h index 4f98770b1d8c..d4d9b96f961e 100644 --- a/arch/arm/plat-omap/include/plat/omap_device.h +++ b/arch/arm/plat-omap/include/plat/omap_device.h @@ -68,7 +68,7 @@ extern struct device omap_device_parent; * */ struct omap_device { - struct platform_device pdev; + struct platform_device *pdev; struct omap_hwmod **hwmods; struct omap_device_pm_latency *pm_lats; u32 dev_wakeup_lat; @@ -146,7 +146,10 @@ struct omap_device_pm_latency { #define OMAP_DEVICE_LATENCY_AUTO_ADJUST BIT(1) /* Get omap_device pointer from platform_device pointer */ -#define to_omap_device(x) container_of((x), struct omap_device, pdev) +static inline struct omap_device *to_omap_device(struct platform_device *pdev) +{ + return pdev ? pdev->archdata.od : NULL; +} static inline void omap_device_disable_idle_on_suspend(struct platform_device *pdev) diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c index a69567ed5905..26aee5cc1fc1 100644 --- a/arch/arm/plat-omap/omap_device.c +++ b/arch/arm/plat-omap/omap_device.c @@ -117,7 +117,7 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_lat) { struct timespec a, b, c; - dev_dbg(&od->pdev.dev, "omap_device: activating\n"); + dev_dbg(&od->pdev->dev, "omap_device: activating\n"); while (od->pm_lat_level > 0) { struct omap_device_pm_latency *odpl; @@ -141,7 +141,7 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_lat) c = timespec_sub(b, a); act_lat = timespec_to_ns(&c); - dev_dbg(&od->pdev.dev, + dev_dbg(&od->pdev->dev, "omap_device: pm_lat %d: activate: elapsed time " "%llu nsec\n", od->pm_lat_level, act_lat); @@ -149,12 +149,12 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_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, + dev_dbg(&od->pdev->dev, "new worst case activate latency " "%d: %llu\n", od->pm_lat_level, act_lat); } else - dev_warn(&od->pdev.dev, + dev_warn(&od->pdev->dev, "activate latency %d " "higher than exptected. (%llu > %d)\n", od->pm_lat_level, act_lat, @@ -185,7 +185,7 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat) { struct timespec a, b, c; - dev_dbg(&od->pdev.dev, "omap_device: deactivating\n"); + dev_dbg(&od->pdev->dev, "omap_device: deactivating\n"); while (od->pm_lat_level < od->pm_lats_cnt) { struct omap_device_pm_latency *odpl; @@ -208,7 +208,7 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat) c = timespec_sub(b, a); deact_lat = timespec_to_ns(&c); - dev_dbg(&od->pdev.dev, + dev_dbg(&od->pdev->dev, "omap_device: pm_lat %d: deactivate: elapsed time " "%llu nsec\n", od->pm_lat_level, deact_lat); @@ -216,12 +216,12 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_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, + dev_dbg(&od->pdev->dev, "new worst case deactivate latency " "%d: %llu\n", od->pm_lat_level, deact_lat); } else - dev_warn(&od->pdev.dev, + dev_warn(&od->pdev->dev, "deactivate latency %d " "higher than exptected. (%llu > %d)\n", od->pm_lat_level, deact_lat, @@ -245,11 +245,11 @@ static void _add_clkdev(struct omap_device *od, const char *clk_alias, if (!clk_alias || !clk_name) return; - dev_dbg(&od->pdev.dev, "Creating %s -> %s\n", clk_alias, clk_name); + dev_dbg(&od->pdev->dev, "Creating %s -> %s\n", clk_alias, clk_name); - r = clk_get_sys(dev_name(&od->pdev.dev), clk_alias); + r = clk_get_sys(dev_name(&od->pdev->dev), clk_alias); if (!IS_ERR(r)) { - dev_warn(&od->pdev.dev, + dev_warn(&od->pdev->dev, "alias %s already exists\n", clk_alias); clk_put(r); return; @@ -257,14 +257,14 @@ static void _add_clkdev(struct omap_device *od, const char *clk_alias, r = omap_clk_get_by_name(clk_name); if (IS_ERR(r)) { - dev_err(&od->pdev.dev, + dev_err(&od->pdev->dev, "omap_clk_get_by_name for %s failed\n", clk_name); return; } - l = clkdev_alloc(r, clk_alias, dev_name(&od->pdev.dev)); + l = clkdev_alloc(r, clk_alias, dev_name(&od->pdev->dev)); if (!l) { - dev_err(&od->pdev.dev, + dev_err(&od->pdev->dev, "clkdev_alloc for %s failed\n", clk_alias); return; } @@ -351,7 +351,7 @@ static int omap_device_count_resources(struct omap_device *od) 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); + "hwmods\n", od->pdev->name, c, od->hwmods_cnt); return c; } @@ -445,8 +445,8 @@ struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id, int pm_lats_cnt, int is_early_device) { int ret = -ENOMEM; + struct platform_device *pdev; struct omap_device *od; - char *pdev_name2; struct resource *res = NULL; int i, res_count; struct omap_hwmod **hwmods; @@ -457,72 +457,76 @@ struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id, if (!pdata && pdata_len > 0) return ERR_PTR(-EINVAL); + pdev = platform_device_alloc(pdev_name, pdev_id); + if (!pdev) { + ret = -ENOMEM; + goto odbs_exit; + } + pr_debug("omap_device: %s: building with %d hwmods\n", pdev_name, oh_cnt); od = kzalloc(sizeof(struct omap_device), GFP_KERNEL); - if (!od) - return ERR_PTR(-ENOMEM); - + if (!od) { + ret = -ENOMEM; + goto odbs_exit1; + } od->hwmods_cnt = oh_cnt; hwmods = kzalloc(sizeof(struct omap_hwmod *) * oh_cnt, GFP_KERNEL); if (!hwmods) - goto odbs_exit1; + goto odbs_exit2; memcpy(hwmods, ohs, sizeof(struct omap_hwmod *) * oh_cnt); od->hwmods = hwmods; - - pdev_name2 = kzalloc(strlen(pdev_name) + 1, GFP_KERNEL); - if (!pdev_name2) - goto odbs_exit2; - strcpy(pdev_name2, pdev_name); - - od->pdev.name = pdev_name2; - od->pdev.id = pdev_id; + od->pdev = pdev; res_count = omap_device_count_resources(od); if (res_count > 0) { res = kzalloc(sizeof(struct resource) * res_count, GFP_KERNEL); if (!res) goto odbs_exit3; - } - omap_device_fill_resources(od, res); - od->pdev.num_resources = res_count; - od->pdev.resource = res; + omap_device_fill_resources(od, res); - ret = platform_device_add_data(&od->pdev, pdata, pdata_len); + ret = platform_device_add_resources(pdev, res, res_count); + kfree(res); + + if (ret) + goto odbs_exit3; + } + + ret = platform_device_add_data(pdev, pdata, pdata_len); if (ret) - goto odbs_exit4; + goto odbs_exit3; - od->pm_lats = pm_lats; - od->pm_lats_cnt = pm_lats_cnt; + pdev->archdata.od = od; if (is_early_device) - ret = omap_early_device_register(&od->pdev); + ret = omap_early_device_register(pdev); else - ret = omap_device_register(&od->pdev); + ret = omap_device_register(pdev); + if (ret) + goto odbs_exit3; + + od->pm_lats = pm_lats; + od->pm_lats_cnt = pm_lats_cnt; for (i = 0; i < oh_cnt; i++) { hwmods[i]->od = od; _add_hwmod_clocks_clkdev(od, hwmods[i]); } - if (ret) - goto odbs_exit4; - - return &od->pdev; + return pdev; -odbs_exit4: - kfree(res); odbs_exit3: - kfree(pdev_name2); -odbs_exit2: kfree(hwmods); -odbs_exit1: +odbs_exit2: kfree(od); +odbs_exit1: + platform_device_put(pdev); +odbs_exit: pr_err("omap_device: %s: build failed (%d)\n", pdev_name, ret); @@ -644,7 +648,7 @@ static int omap_device_register(struct platform_device *pdev) pdev->dev.parent = &omap_device_parent; pdev->dev.pm_domain = &omap_device_pm_domain; - return platform_device_register(pdev); + return platform_device_add(pdev); } -- GitLab