diff options
Diffstat (limited to 'drivers/mmc/core/host.c')
| -rw-r--r-- | drivers/mmc/core/host.c | 53 |
1 files changed, 40 insertions, 13 deletions
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index d17eda753b7e..88c95dbfd9cf 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -13,9 +13,7 @@ #include <linux/err.h> #include <linux/idr.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <linux/pagemap.h> -#include <linux/pm_wakeup.h> #include <linux/export.h> #include <linux/leds.h> #include <linux/slab.h> @@ -76,7 +74,7 @@ static void mmc_host_classdev_release(struct device *dev) struct mmc_host *host = cls_dev_to_mmc_host(dev); wakeup_source_unregister(host->ws); if (of_alias_get_id(host->parent->of_node, "mmc") < 0) - ida_simple_remove(&mmc_host_ida, host->index); + ida_free(&mmc_host_ida, host->index); kfree(host); } @@ -88,7 +86,7 @@ static int mmc_host_classdev_shutdown(struct device *dev) return 0; } -static struct class mmc_host_class = { +static const struct class mmc_host_class = { .name = "mmc_host", .dev_release = mmc_host_classdev_release, .shutdown_pre = mmc_host_classdev_shutdown, @@ -119,13 +117,12 @@ void mmc_retune_enable(struct mmc_host *host) /* * Pause re-tuning for a small set of operations. The pause begins after the - * next command and after first doing re-tuning. + * next command. */ void mmc_retune_pause(struct mmc_host *host) { if (!host->retune_paused) { host->retune_paused = 1; - mmc_retune_needed(host); mmc_retune_hold(host); } } @@ -150,13 +147,13 @@ void mmc_retune_disable(struct mmc_host *host) { mmc_retune_unpause(host); host->can_retune = 0; - del_timer_sync(&host->retune_timer); + timer_delete_sync(&host->retune_timer); mmc_retune_clear(host); } void mmc_retune_timer_stop(struct mmc_host *host) { - del_timer_sync(&host->retune_timer); + timer_delete_sync(&host->retune_timer); } EXPORT_SYMBOL(mmc_retune_timer_stop); @@ -215,7 +212,7 @@ out: static void mmc_retune_timer(struct timer_list *t) { - struct mmc_host *host = from_timer(host, t, retune_timer); + struct mmc_host *host = timer_container_of(host, t, retune_timer); mmc_retune_needed(host); } @@ -235,10 +232,8 @@ static void mmc_of_parse_timing_phase(struct device *dev, const char *prop, } void -mmc_of_parse_clk_phase(struct mmc_host *host, struct mmc_clk_phase_map *map) +mmc_of_parse_clk_phase(struct device *dev, struct mmc_clk_phase_map *map) { - struct device *dev = host->parent; - mmc_of_parse_timing_phase(dev, "clk-phase-legacy", &map->phase[MMC_TIMING_LEGACY]); mmc_of_parse_timing_phase(dev, "clk-phase-mmc-hs", @@ -307,6 +302,8 @@ int mmc_of_parse(struct mmc_host *host) /* f_max is obtained from the optional "max-frequency" property */ device_property_read_u32(dev, "max-frequency", &host->f_max); + device_property_read_u32(dev, "max-sd-hs-hz", &host->max_sd_hs_hz); + /* * Configure CD and WP pins. They are both by default active low to * match the SDHCI spec. If GPIOs are provided for CD and / or WP, the @@ -539,7 +536,8 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) min_idx = mmc_first_nonreserved_index(); max_idx = 0; - index = ida_simple_get(&mmc_host_ida, min_idx, max_idx, GFP_KERNEL); + index = ida_alloc_range(&mmc_host_ida, min_idx, max_idx - 1, + GFP_KERNEL); if (index < 0) { kfree(host); return NULL; @@ -568,6 +566,8 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) INIT_WORK(&host->sdio_irq_work, sdio_irq_work); timer_setup(&host->retune_timer, mmc_retune_timer, 0); + INIT_WORK(&host->supply.uv_work, mmc_undervoltage_workfn); + /* * By default, hosts do not support SGIO or large requests. * They have to set these according to their abilities. @@ -588,6 +588,32 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) EXPORT_SYMBOL(mmc_alloc_host); +static void devm_mmc_host_release(struct device *dev, void *res) +{ + mmc_free_host(*(struct mmc_host **)res); +} + +struct mmc_host *devm_mmc_alloc_host(struct device *dev, int extra) +{ + struct mmc_host **dr, *host; + + dr = devres_alloc(devm_mmc_host_release, sizeof(*dr), GFP_KERNEL); + if (!dr) + return NULL; + + host = mmc_alloc_host(extra, dev); + if (!host) { + devres_free(dr); + return NULL; + } + + *dr = host; + devres_add(dev, dr); + + return host; +} +EXPORT_SYMBOL(devm_mmc_alloc_host); + static int mmc_validate_host_caps(struct mmc_host *host) { struct device *dev = host->parent; @@ -666,6 +692,7 @@ EXPORT_SYMBOL(mmc_remove_host); */ void mmc_free_host(struct mmc_host *host) { + cancel_delayed_work_sync(&host->detect); mmc_pwrseq_free(host); put_device(&host->class_dev); } |