| Message ID | 20221213090047.3805-21-victor.shih@genesyslogic.com.tw |
|---|---|
| State | New |
| Headers | show |
| Series | Add support UHS-II for GL9755 | expand |
On 13/12/22 11:00, Victor Shih wrote: > This is a UHS-II version of sdhci's add_host/remove_host operation. > Any sdhci drivers which are capable of handling UHS-II cards must > call those functions instead of the corresponding sdhci's. > > Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw> > Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> > Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> > --- > drivers/mmc/host/sdhci-uhs2.c | 171 ++++++++++++++++++++++++++++++++++ > drivers/mmc/host/sdhci-uhs2.h | 2 + > drivers/mmc/host/sdhci.c | 28 ++++-- > drivers/mmc/host/sdhci.h | 12 +++ > 4 files changed, 204 insertions(+), 9 deletions(-) > > diff --git a/drivers/mmc/host/sdhci-uhs2.c b/drivers/mmc/host/sdhci-uhs2.c > index 769cf88b21cf..5349173b4f90 100644 > --- a/drivers/mmc/host/sdhci-uhs2.c > +++ b/drivers/mmc/host/sdhci-uhs2.c > @@ -17,6 +17,7 @@ > #include <linux/ktime.h> > #include <linux/mmc/mmc.h> > #include <linux/dmaengine.h> > +#include <linux/regulator/consumer.h> > > #include "sdhci.h" > #include "sdhci-uhs2.h" > @@ -1015,6 +1016,176 @@ static irqreturn_t sdhci_uhs2_thread_irq(int irq, void *dev_id) > return IRQ_HANDLED; > } > > +/*****************************************************************************\ > + * > + * Device allocation/registration * > + * * > +\*****************************************************************************/ > + > +static int __sdhci_uhs2_add_host_v4(struct sdhci_host *host, u32 caps1) > +{ > + struct mmc_host *mmc; > + u32 max_current_caps2; > + > + if (host->version < SDHCI_SPEC_400) > + return 0; > + > + mmc = host->mmc; > + > + /* Support UHS2 */ > + if (caps1 & SDHCI_SUPPORT_UHS2) > + mmc->caps2 |= MMC_CAP2_SD_UHS2; > + > + max_current_caps2 = sdhci_readl(host, SDHCI_MAX_CURRENT_1); > + > + if ((caps1 & SDHCI_CAN_VDD2_180) && > + !max_current_caps2 && > + !IS_ERR(mmc->supply.vmmc2)) { > + /* UHS2 - VDD2 */ > + int curr = regulator_get_current_limit(mmc->supply.vmmc2); > + > + if (curr > 0) { > + /* convert to SDHCI_MAX_CURRENT format */ > + curr = curr / 1000; /* convert to mA */ > + curr = curr / SDHCI_MAX_CURRENT_MULTIPLIER; > + curr = min_t(u32, curr, SDHCI_MAX_CURRENT_LIMIT); > + max_current_caps2 = curr; > + } > + } > + > + if (caps1 & SDHCI_CAN_VDD2_180) { > + mmc->ocr_avail_uhs2 |= MMC_VDD2_165_195; > + /* > + * UHS2 doesn't require this. Only UHS-I bus needs to set > + * max current. > + */ > + mmc->max_current_180_vdd2 = (max_current_caps2 & > + SDHCI_MAX_CURRENT_VDD2_180_MASK) * > + SDHCI_MAX_CURRENT_MULTIPLIER; > + } else { > + mmc->caps2 &= ~MMC_CAP2_SD_UHS2; > + } > + > + return 0; > +} > + > +static int sdhci_uhs2_host_ops_init(struct sdhci_host *host); > + > +static int __sdhci_uhs2_add_host(struct sdhci_host *host) > +{ > + unsigned int flags = WQ_UNBOUND | WQ_MEM_RECLAIM | WQ_HIGHPRI; > + struct mmc_host *mmc = host->mmc; > + int ret; > + > + if ((mmc->caps2 & MMC_CAP2_CQE) && > + (host->quirks & SDHCI_QUIRK_BROKEN_CQE)) { > + mmc->caps2 &= ~MMC_CAP2_CQE; > + mmc->cqe_ops = NULL; > + } > + > + host->complete_wq = alloc_workqueue("sdhci", flags, 0); > + if (!host->complete_wq) > + return -ENOMEM; > + > + INIT_WORK(&host->complete_work, host->complete_work_fn); > + > + timer_setup(&host->timer, sdhci_timeout_timer, 0); > + timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); > + > + init_waitqueue_head(&host->buf_ready_int); > + > + sdhci_init(host, 0); > + > + ret = request_threaded_irq(host->irq, sdhci_irq, > + host->thread_irq_fn, > + IRQF_SHARED, mmc_hostname(mmc), host); > + if (ret) { > + pr_err("%s: Failed to request IRQ %d: %d\n", > + mmc_hostname(mmc), host->irq, ret); > + goto unwq; > + } > + > + ret = mmc_add_host(mmc); > + if (ret) > + return 1; > + > + pr_info("%s: SDHCI controller on %s [%s] using %s\n", > + mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)), > + host->use_external_dma ? "External DMA" : > + (host->flags & SDHCI_USE_ADMA) ? > + (host->flags & SDHCI_USE_64_BIT_DMA) ? "ADMA 64-bit" : "ADMA" : > + (host->flags & SDHCI_USE_SDMA) ? "DMA" : "PIO"); > + > + sdhci_enable_card_detection(host); > + > + return 0; > + > +unwq: > + destroy_workqueue(host->complete_wq); > + > + return ret; > +} > + > +static void __sdhci_uhs2_remove_host(struct sdhci_host *host, int dead) > +{ > + if (!sdhci_uhs2_mode(host)) > + return; > + > + if (!dead) > + sdhci_uhs2_reset(host, SDHCI_UHS2_SW_RESET_FULL); > +} > + > +int sdhci_uhs2_add_host(struct sdhci_host *host) > +{ > + struct mmc_host *mmc = host->mmc; > + int ret; > + > + ret = sdhci_setup_host(host); > + if (ret) > + return ret; > + > + if (host->version >= SDHCI_SPEC_400) { > + ret = __sdhci_uhs2_add_host_v4(host, host->caps1); > + if (ret) > + goto cleanup; > + } > + > + if ((mmc->caps2 & MMC_CAP2_SD_UHS2) && !host->v4_mode) > + /* host doesn't want to enable UHS2 support */ > + /* FIXME: Do we have to do some cleanup here? */ > + mmc->caps2 &= ~MMC_CAP2_SD_UHS2; > + > + /* overwrite ops */ > + if (mmc->caps2 & MMC_CAP2_SD_UHS2) > + sdhci_uhs2_host_ops_init(host); > + > + host->complete_work_fn = sdhci_uhs2_complete_work; > + host->thread_irq_fn = sdhci_uhs2_thread_irq; > + > + ret = __sdhci_uhs2_add_host(host); Please just use __sdhci_add_host() and __sdhci_uhs2_add_host() is not needed. i.e. /* LED support not implemented for UHS2 */ host->quirks |= SDHCI_QUIRK_NO_LED; ret = __sdhci_add_host(host); > + if (ret) > + goto cleanup2; > + > + return 0; > + > +cleanup2: > + if (host->version >= SDHCI_SPEC_400) > + __sdhci_uhs2_remove_host(host, 0); > +cleanup: > + sdhci_cleanup_host(host); > + > + return ret; > +} > +EXPORT_SYMBOL_GPL(sdhci_uhs2_add_host); > + > +void sdhci_uhs2_remove_host(struct sdhci_host *host, int dead) > +{ > + __sdhci_uhs2_remove_host(host, dead); > + > + sdhci_remove_host(host, dead); > +} > +EXPORT_SYMBOL_GPL(sdhci_uhs2_remove_host); > + > void sdhci_uhs2_request(struct mmc_host *mmc, struct mmc_request *mrq) > { > struct sdhci_host *host = mmc_priv(mmc); > diff --git a/drivers/mmc/host/sdhci-uhs2.h b/drivers/mmc/host/sdhci-uhs2.h > index 64b7f356c9fc..b2048c48d056 100644 > --- a/drivers/mmc/host/sdhci-uhs2.h > +++ b/drivers/mmc/host/sdhci-uhs2.h > @@ -182,5 +182,7 @@ void sdhci_uhs2_clear_set_irqs(struct sdhci_host *host, u32 clear, u32 set); > void sdhci_uhs2_request(struct mmc_host *mmc, struct mmc_request *mrq); > int sdhci_uhs2_request_atomic(struct mmc_host *mmc, struct mmc_request *mrq); > u32 sdhci_uhs2_irq(struct sdhci_host *host, u32 intmask); > +int sdhci_uhs2_add_host(struct sdhci_host *host); > +void sdhci_uhs2_remove_host(struct sdhci_host *host, int dead); > > #endif /* __SDHCI_UHS2_H */ > diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c > index 6c67b79102eb..82ad35f4d1b4 100644 > --- a/drivers/mmc/host/sdhci.c > +++ b/drivers/mmc/host/sdhci.c > @@ -175,10 +175,11 @@ static void sdhci_set_card_detection(struct sdhci_host *host, bool enable) > sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); > } > > -static void sdhci_enable_card_detection(struct sdhci_host *host) > +void sdhci_enable_card_detection(struct sdhci_host *host) > { > sdhci_set_card_detection(host, true); > } > +EXPORT_SYMBOL_GPL(sdhci_enable_card_detection); sdhci_enable_card_detection() does not need to be exported when __sdhci_uhs2_add_host() is not needed anymore > > static void sdhci_disable_card_detection(struct sdhci_host *host) > { > @@ -369,7 +370,7 @@ static void sdhci_config_dma(struct sdhci_host *host) > sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); > } > > -static void sdhci_init(struct sdhci_host *host, int soft) > +void sdhci_init(struct sdhci_host *host, int soft) > { > struct mmc_host *mmc = host->mmc; > unsigned long flags; > @@ -395,6 +396,7 @@ static void sdhci_init(struct sdhci_host *host, int soft) > mmc->ops->set_ios(mmc, &mmc->ios); > } > } > +EXPORT_SYMBOL_GPL(sdhci_init); Does not need to be exported when __sdhci_uhs2_add_host() is not needed anymore > > static void sdhci_reinit(struct sdhci_host *host) > { > @@ -458,7 +460,7 @@ static void sdhci_led_control(struct led_classdev *led, > spin_unlock_irqrestore(&host->lock, flags); > } > > -static int sdhci_led_register(struct sdhci_host *host) > +int sdhci_led_register(struct sdhci_host *host) > { > struct mmc_host *mmc = host->mmc; > > @@ -475,14 +477,16 @@ static int sdhci_led_register(struct sdhci_host *host) > > return led_classdev_register(mmc_dev(mmc), &host->led); > } > +EXPORT_SYMBOL_GPL(sdhci_led_register); sdhci_led_register does not need export > > -static void sdhci_led_unregister(struct sdhci_host *host) > +void sdhci_led_unregister(struct sdhci_host *host) > { > if (host->quirks & SDHCI_QUIRK_NO_LED) > return; > > led_classdev_unregister(&host->led); > } > +EXPORT_SYMBOL_GPL(sdhci_led_unregister); sdhci_led_unregister does not need export > > static inline void sdhci_led_activate(struct sdhci_host *host) > { > @@ -3265,7 +3269,7 @@ void sdhci_complete_work(struct work_struct *work) > } > EXPORT_SYMBOL_GPL(sdhci_complete_work); > > -static void sdhci_timeout_timer(struct timer_list *t) > +void sdhci_timeout_timer(struct timer_list *t) > { > struct sdhci_host *host; > unsigned long flags; > @@ -3286,8 +3290,9 @@ static void sdhci_timeout_timer(struct timer_list *t) > > spin_unlock_irqrestore(&host->lock, flags); > } > +EXPORT_SYMBOL_GPL(sdhci_timeout_timer); sdhci_timeout_timer() does not need export when __sdhci_uhs2_add_host() is not needed anymore > > -static void sdhci_timeout_data_timer(struct timer_list *t) > +void sdhci_timeout_data_timer(struct timer_list *t) > { > struct sdhci_host *host; > unsigned long flags; > @@ -3318,6 +3323,7 @@ static void sdhci_timeout_data_timer(struct timer_list *t) > > spin_unlock_irqrestore(&host->lock, flags); > } > +EXPORT_SYMBOL_GPL(sdhci_timeout_data_timer); sdhci_timeout_data_timer() does not need export when __sdhci_uhs2_add_host() is not needed anymore > > /*****************************************************************************\ > * * > @@ -3577,7 +3583,7 @@ static inline bool sdhci_defer_done(struct sdhci_host *host, > data->host_cookie == COOKIE_MAPPED); > } > > -static irqreturn_t sdhci_irq(int irq, void *dev_id) > +irqreturn_t sdhci_irq(int irq, void *dev_id) > { > struct mmc_request *mrqs_done[SDHCI_MAX_MRQS] = {0}; > irqreturn_t result = IRQ_NONE; > @@ -3718,6 +3724,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) > > return result; > } > +EXPORT_SYMBOL_GPL(sdhci_irq); sdhci_irq() does not need export when __sdhci_uhs2_add_host() is not needed anymore > > irqreturn_t sdhci_thread_irq(int irq, void *dev_id) > { > @@ -4122,6 +4129,9 @@ struct sdhci_host *sdhci_alloc_host(struct device *dev, > > host->max_timeout_count = 0xE; > > + host->complete_work_fn = sdhci_complete_work; > + host->thread_irq_fn = sdhci_thread_irq; > + > return host; > } > > @@ -4874,7 +4884,7 @@ int __sdhci_add_host(struct sdhci_host *host) > if (!host->complete_wq) > return -ENOMEM; > > - INIT_WORK(&host->complete_work, sdhci_complete_work); > + INIT_WORK(&host->complete_work, host->complete_work_fn); > > timer_setup(&host->timer, sdhci_timeout_timer, 0); > timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); > @@ -4883,7 +4893,7 @@ int __sdhci_add_host(struct sdhci_host *host) > > sdhci_init(host, 0); > > - ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq, > + ret = request_threaded_irq(host->irq, sdhci_irq, host->thread_irq_fn, > IRQF_SHARED, mmc_hostname(mmc), host); > if (ret) { > pr_err("%s: Failed to request IRQ %d: %d\n", > diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h > index 4979af7cabca..5f090b5ecc61 100644 > --- a/drivers/mmc/host/sdhci.h > +++ b/drivers/mmc/host/sdhci.h > @@ -629,6 +629,9 @@ struct sdhci_host { > struct timer_list timer; /* Timer for timeouts */ > struct timer_list data_timer; /* Timer for data timeouts */ > > + void (*complete_work_fn)(struct work_struct *work); > + irqreturn_t (*thread_irq_fn)(int irq, void *dev_id); > + > #if IS_ENABLED(CONFIG_MMC_SDHCI_EXTERNAL_DMA) > struct dma_chan *rx_chan; > struct dma_chan *tx_chan; > @@ -832,6 +835,12 @@ static inline void sdhci_read_caps(struct sdhci_host *host) > } > > bool sdhci_data_line_cmd(struct mmc_command *cmd); > +void sdhci_enable_card_detection(struct sdhci_host *host); > +void sdhci_init(struct sdhci_host *host, int soft); > +#if IS_REACHABLE(CONFIG_LEDS_CLASS) > +int sdhci_led_register(struct sdhci_host *host); > +void sdhci_led_unregister(struct sdhci_host *host); > +#endif Export of sdhci_led_register and sdhci_led_unregister is not needed > void sdhci_mod_timer(struct sdhci_host *host, struct mmc_request *mrq, unsigned long timeout); > void sdhci_initialize_data(struct sdhci_host *host, struct mmc_data *data); > void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data); > @@ -875,6 +884,9 @@ int sdhci_start_signal_voltage_switch(struct mmc_host *mmc, > void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable); > void sdhci_request_done_dma(struct sdhci_host *host, struct mmc_request *mrq); > void sdhci_complete_work(struct work_struct *work); > +void sdhci_timeout_timer(struct timer_list *t); > +void sdhci_timeout_data_timer(struct timer_list *t); sdhci_timeout_timer() and sdhci_timeout_data_timer() do not need export when __sdhci_uhs2_add_host() is not needed anymore > +irqreturn_t sdhci_irq(int irq, void *dev_id); sdhci_irq() does not need export when __sdhci_uhs2_add_host() is not needed anymore > irqreturn_t sdhci_thread_irq(int irq, void *dev_id); > void sdhci_adma_write_desc(struct sdhci_host *host, void **desc, > dma_addr_t addr, int len, unsigned int cmd);
Hi, Adrian On Fri, Jan 6, 2023 at 5:30 AM Adrian Hunter <adrian.hunter@intel.com> wrote: > > On 13/12/22 11:00, Victor Shih wrote: > > This is a UHS-II version of sdhci's add_host/remove_host operation. > > Any sdhci drivers which are capable of handling UHS-II cards must > > call those functions instead of the corresponding sdhci's. > > > > Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw> > > Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> > > Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> > > --- > > drivers/mmc/host/sdhci-uhs2.c | 171 ++++++++++++++++++++++++++++++++++ > > drivers/mmc/host/sdhci-uhs2.h | 2 + > > drivers/mmc/host/sdhci.c | 28 ++++-- > > drivers/mmc/host/sdhci.h | 12 +++ > > 4 files changed, 204 insertions(+), 9 deletions(-) > > > > diff --git a/drivers/mmc/host/sdhci-uhs2.c b/drivers/mmc/host/sdhci-uhs2.c > > index 769cf88b21cf..5349173b4f90 100644 > > --- a/drivers/mmc/host/sdhci-uhs2.c > > +++ b/drivers/mmc/host/sdhci-uhs2.c > > @@ -17,6 +17,7 @@ > > #include <linux/ktime.h> > > #include <linux/mmc/mmc.h> > > #include <linux/dmaengine.h> > > +#include <linux/regulator/consumer.h> > > > > #include "sdhci.h" > > #include "sdhci-uhs2.h" > > @@ -1015,6 +1016,176 @@ static irqreturn_t sdhci_uhs2_thread_irq(int irq, void *dev_id) > > return IRQ_HANDLED; > > } > > > > +/*****************************************************************************\ > > + * > > + * Device allocation/registration * > > + * * > > +\*****************************************************************************/ > > + > > +static int __sdhci_uhs2_add_host_v4(struct sdhci_host *host, u32 caps1) > > +{ > > + struct mmc_host *mmc; > > + u32 max_current_caps2; > > + > > + if (host->version < SDHCI_SPEC_400) > > + return 0; > > + > > + mmc = host->mmc; > > + > > + /* Support UHS2 */ > > + if (caps1 & SDHCI_SUPPORT_UHS2) > > + mmc->caps2 |= MMC_CAP2_SD_UHS2; > > + > > + max_current_caps2 = sdhci_readl(host, SDHCI_MAX_CURRENT_1); > > + > > + if ((caps1 & SDHCI_CAN_VDD2_180) && > > + !max_current_caps2 && > > + !IS_ERR(mmc->supply.vmmc2)) { > > + /* UHS2 - VDD2 */ > > + int curr = regulator_get_current_limit(mmc->supply.vmmc2); > > + > > + if (curr > 0) { > > + /* convert to SDHCI_MAX_CURRENT format */ > > + curr = curr / 1000; /* convert to mA */ > > + curr = curr / SDHCI_MAX_CURRENT_MULTIPLIER; > > + curr = min_t(u32, curr, SDHCI_MAX_CURRENT_LIMIT); > > + max_current_caps2 = curr; > > + } > > + } > > + > > + if (caps1 & SDHCI_CAN_VDD2_180) { > > + mmc->ocr_avail_uhs2 |= MMC_VDD2_165_195; > > + /* > > + * UHS2 doesn't require this. Only UHS-I bus needs to set > > + * max current. > > + */ > > + mmc->max_current_180_vdd2 = (max_current_caps2 & > > + SDHCI_MAX_CURRENT_VDD2_180_MASK) * > > + SDHCI_MAX_CURRENT_MULTIPLIER; > > + } else { > > + mmc->caps2 &= ~MMC_CAP2_SD_UHS2; > > + } > > + > > + return 0; > > +} > > + > > +static int sdhci_uhs2_host_ops_init(struct sdhci_host *host); > > + > > +static int __sdhci_uhs2_add_host(struct sdhci_host *host) > > +{ > > + unsigned int flags = WQ_UNBOUND | WQ_MEM_RECLAIM | WQ_HIGHPRI; > > + struct mmc_host *mmc = host->mmc; > > + int ret; > > + > > + if ((mmc->caps2 & MMC_CAP2_CQE) && > > + (host->quirks & SDHCI_QUIRK_BROKEN_CQE)) { > > + mmc->caps2 &= ~MMC_CAP2_CQE; > > + mmc->cqe_ops = NULL; > > + } > > + > > + host->complete_wq = alloc_workqueue("sdhci", flags, 0); > > + if (!host->complete_wq) > > + return -ENOMEM; > > + > > + INIT_WORK(&host->complete_work, host->complete_work_fn); > > + > > + timer_setup(&host->timer, sdhci_timeout_timer, 0); > > + timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); > > + > > + init_waitqueue_head(&host->buf_ready_int); > > + > > + sdhci_init(host, 0); > > + > > + ret = request_threaded_irq(host->irq, sdhci_irq, > > + host->thread_irq_fn, > > + IRQF_SHARED, mmc_hostname(mmc), host); > > + if (ret) { > > + pr_err("%s: Failed to request IRQ %d: %d\n", > > + mmc_hostname(mmc), host->irq, ret); > > + goto unwq; > > + } > > + > > + ret = mmc_add_host(mmc); > > + if (ret) > > + return 1; > > + > > + pr_info("%s: SDHCI controller on %s [%s] using %s\n", > > + mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)), > > + host->use_external_dma ? "External DMA" : > > + (host->flags & SDHCI_USE_ADMA) ? > > + (host->flags & SDHCI_USE_64_BIT_DMA) ? "ADMA 64-bit" : "ADMA" : > > + (host->flags & SDHCI_USE_SDMA) ? "DMA" : "PIO"); > > + > > + sdhci_enable_card_detection(host); > > + > > + return 0; > > + > > +unwq: > > + destroy_workqueue(host->complete_wq); > > + > > + return ret; > > +} > > + > > +static void __sdhci_uhs2_remove_host(struct sdhci_host *host, int dead) > > +{ > > + if (!sdhci_uhs2_mode(host)) > > + return; > > + > > + if (!dead) > > + sdhci_uhs2_reset(host, SDHCI_UHS2_SW_RESET_FULL); > > +} > > + > > +int sdhci_uhs2_add_host(struct sdhci_host *host) > > +{ > > + struct mmc_host *mmc = host->mmc; > > + int ret; > > + > > + ret = sdhci_setup_host(host); > > + if (ret) > > + return ret; > > + > > + if (host->version >= SDHCI_SPEC_400) { > > + ret = __sdhci_uhs2_add_host_v4(host, host->caps1); > > + if (ret) > > + goto cleanup; > > + } > > + > > + if ((mmc->caps2 & MMC_CAP2_SD_UHS2) && !host->v4_mode) > > + /* host doesn't want to enable UHS2 support */ > > + /* FIXME: Do we have to do some cleanup here? */ > > + mmc->caps2 &= ~MMC_CAP2_SD_UHS2; > > + > > + /* overwrite ops */ > > + if (mmc->caps2 & MMC_CAP2_SD_UHS2) > > + sdhci_uhs2_host_ops_init(host); > > + > > + host->complete_work_fn = sdhci_uhs2_complete_work; > > + host->thread_irq_fn = sdhci_uhs2_thread_irq; > > + > > + ret = __sdhci_uhs2_add_host(host); > > Please just use __sdhci_add_host() and __sdhci_uhs2_add_host() > is not needed. i.e. > > /* LED support not implemented for UHS2 */ > host->quirks |= SDHCI_QUIRK_NO_LED; > > ret = __sdhci_add_host(host); > I will update it in V7 version. > > + if (ret) > > + goto cleanup2; > > + > > + return 0; > > + > > +cleanup2: > > + if (host->version >= SDHCI_SPEC_400) > > + __sdhci_uhs2_remove_host(host, 0); > > +cleanup: > > + sdhci_cleanup_host(host); > > + > > + return ret; > > +} > > +EXPORT_SYMBOL_GPL(sdhci_uhs2_add_host); > > + > > +void sdhci_uhs2_remove_host(struct sdhci_host *host, int dead) > > +{ > > + __sdhci_uhs2_remove_host(host, dead); > > + > > + sdhci_remove_host(host, dead); > > +} > > +EXPORT_SYMBOL_GPL(sdhci_uhs2_remove_host); > > + > > void sdhci_uhs2_request(struct mmc_host *mmc, struct mmc_request *mrq) > > { > > struct sdhci_host *host = mmc_priv(mmc); > > diff --git a/drivers/mmc/host/sdhci-uhs2.h b/drivers/mmc/host/sdhci-uhs2.h > > index 64b7f356c9fc..b2048c48d056 100644 > > --- a/drivers/mmc/host/sdhci-uhs2.h > > +++ b/drivers/mmc/host/sdhci-uhs2.h > > @@ -182,5 +182,7 @@ void sdhci_uhs2_clear_set_irqs(struct sdhci_host *host, u32 clear, u32 set); > > void sdhci_uhs2_request(struct mmc_host *mmc, struct mmc_request *mrq); > > int sdhci_uhs2_request_atomic(struct mmc_host *mmc, struct mmc_request *mrq); > > u32 sdhci_uhs2_irq(struct sdhci_host *host, u32 intmask); > > +int sdhci_uhs2_add_host(struct sdhci_host *host); > > +void sdhci_uhs2_remove_host(struct sdhci_host *host, int dead); > > > > #endif /* __SDHCI_UHS2_H */ > > diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c > > index 6c67b79102eb..82ad35f4d1b4 100644 > > --- a/drivers/mmc/host/sdhci.c > > +++ b/drivers/mmc/host/sdhci.c > > @@ -175,10 +175,11 @@ static void sdhci_set_card_detection(struct sdhci_host *host, bool enable) > > sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); > > } > > > > -static void sdhci_enable_card_detection(struct sdhci_host *host) > > +void sdhci_enable_card_detection(struct sdhci_host *host) > > { > > sdhci_set_card_detection(host, true); > > } > > +EXPORT_SYMBOL_GPL(sdhci_enable_card_detection); > > sdhci_enable_card_detection() does not need to be exported > when __sdhci_uhs2_add_host() is not needed anymore > I will update it in V7 version. > > > > static void sdhci_disable_card_detection(struct sdhci_host *host) > > { > > @@ -369,7 +370,7 @@ static void sdhci_config_dma(struct sdhci_host *host) > > sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); > > } > > > > -static void sdhci_init(struct sdhci_host *host, int soft) > > +void sdhci_init(struct sdhci_host *host, int soft) > > { > > struct mmc_host *mmc = host->mmc; > > unsigned long flags; > > @@ -395,6 +396,7 @@ static void sdhci_init(struct sdhci_host *host, int soft) > > mmc->ops->set_ios(mmc, &mmc->ios); > > } > > } > > +EXPORT_SYMBOL_GPL(sdhci_init); > > Does not need to be exported when __sdhci_uhs2_add_host() > is not needed anymore > I will update it in V7 version. > > > > static void sdhci_reinit(struct sdhci_host *host) > > { > > @@ -458,7 +460,7 @@ static void sdhci_led_control(struct led_classdev *led, > > spin_unlock_irqrestore(&host->lock, flags); > > } > > > > -static int sdhci_led_register(struct sdhci_host *host) > > +int sdhci_led_register(struct sdhci_host *host) > > { > > struct mmc_host *mmc = host->mmc; > > > > @@ -475,14 +477,16 @@ static int sdhci_led_register(struct sdhci_host *host) > > > > return led_classdev_register(mmc_dev(mmc), &host->led); > > } > > +EXPORT_SYMBOL_GPL(sdhci_led_register); > > sdhci_led_register does not need export > I will update it in V7 version. > > > > -static void sdhci_led_unregister(struct sdhci_host *host) > > +void sdhci_led_unregister(struct sdhci_host *host) > > { > > if (host->quirks & SDHCI_QUIRK_NO_LED) > > return; > > > > led_classdev_unregister(&host->led); > > } > > +EXPORT_SYMBOL_GPL(sdhci_led_unregister); > > sdhci_led_unregister does not need export > I will update it in V7 version. > > > > static inline void sdhci_led_activate(struct sdhci_host *host) > > { > > @@ -3265,7 +3269,7 @@ void sdhci_complete_work(struct work_struct *work) > > } > > EXPORT_SYMBOL_GPL(sdhci_complete_work); > > > > -static void sdhci_timeout_timer(struct timer_list *t) > > +void sdhci_timeout_timer(struct timer_list *t) > > { > > struct sdhci_host *host; > > unsigned long flags; > > @@ -3286,8 +3290,9 @@ static void sdhci_timeout_timer(struct timer_list *t) > > > > spin_unlock_irqrestore(&host->lock, flags); > > } > > +EXPORT_SYMBOL_GPL(sdhci_timeout_timer); > > sdhci_timeout_timer() does not need export > when __sdhci_uhs2_add_host() is not needed anymore > I will update it in V7 version. > > > > -static void sdhci_timeout_data_timer(struct timer_list *t) > > +void sdhci_timeout_data_timer(struct timer_list *t) > > { > > struct sdhci_host *host; > > unsigned long flags; > > @@ -3318,6 +3323,7 @@ static void sdhci_timeout_data_timer(struct timer_list *t) > > > > spin_unlock_irqrestore(&host->lock, flags); > > } > > +EXPORT_SYMBOL_GPL(sdhci_timeout_data_timer); > > sdhci_timeout_data_timer() does not need export > when __sdhci_uhs2_add_host() is not needed anymore > I will update it in V7 version. > > > > /*****************************************************************************\ > > * * > > @@ -3577,7 +3583,7 @@ static inline bool sdhci_defer_done(struct sdhci_host *host, > > data->host_cookie == COOKIE_MAPPED); > > } > > > > -static irqreturn_t sdhci_irq(int irq, void *dev_id) > > +irqreturn_t sdhci_irq(int irq, void *dev_id) > > { > > struct mmc_request *mrqs_done[SDHCI_MAX_MRQS] = {0}; > > irqreturn_t result = IRQ_NONE; > > @@ -3718,6 +3724,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) > > > > return result; > > } > > +EXPORT_SYMBOL_GPL(sdhci_irq); > > sdhci_irq() does not need export > when __sdhci_uhs2_add_host() is not needed anymore > I will update it in V7 version. > > > > irqreturn_t sdhci_thread_irq(int irq, void *dev_id) > > { > > @@ -4122,6 +4129,9 @@ struct sdhci_host *sdhci_alloc_host(struct device *dev, > > > > host->max_timeout_count = 0xE; > > > > + host->complete_work_fn = sdhci_complete_work; > > + host->thread_irq_fn = sdhci_thread_irq; > > + > > return host; > > } > > > > @@ -4874,7 +4884,7 @@ int __sdhci_add_host(struct sdhci_host *host) > > if (!host->complete_wq) > > return -ENOMEM; > > > > - INIT_WORK(&host->complete_work, sdhci_complete_work); > > + INIT_WORK(&host->complete_work, host->complete_work_fn); > > > > timer_setup(&host->timer, sdhci_timeout_timer, 0); > > timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); > > @@ -4883,7 +4893,7 @@ int __sdhci_add_host(struct sdhci_host *host) > > > > sdhci_init(host, 0); > > > > - ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq, > > + ret = request_threaded_irq(host->irq, sdhci_irq, host->thread_irq_fn, > > IRQF_SHARED, mmc_hostname(mmc), host); > > if (ret) { > > pr_err("%s: Failed to request IRQ %d: %d\n", > > diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h > > index 4979af7cabca..5f090b5ecc61 100644 > > --- a/drivers/mmc/host/sdhci.h > > +++ b/drivers/mmc/host/sdhci.h > > @@ -629,6 +629,9 @@ struct sdhci_host { > > struct timer_list timer; /* Timer for timeouts */ > > struct timer_list data_timer; /* Timer for data timeouts */ > > > > + void (*complete_work_fn)(struct work_struct *work); > > + irqreturn_t (*thread_irq_fn)(int irq, void *dev_id); > > + > > #if IS_ENABLED(CONFIG_MMC_SDHCI_EXTERNAL_DMA) > > struct dma_chan *rx_chan; > > struct dma_chan *tx_chan; > > @@ -832,6 +835,12 @@ static inline void sdhci_read_caps(struct sdhci_host *host) > > } > > > > bool sdhci_data_line_cmd(struct mmc_command *cmd); > > +void sdhci_enable_card_detection(struct sdhci_host *host); > > +void sdhci_init(struct sdhci_host *host, int soft); > > +#if IS_REACHABLE(CONFIG_LEDS_CLASS) > > +int sdhci_led_register(struct sdhci_host *host); > > +void sdhci_led_unregister(struct sdhci_host *host); > > +#endif > > Export of sdhci_led_register and sdhci_led_unregister > is not needed > I will update it in V7 version. > > void sdhci_mod_timer(struct sdhci_host *host, struct mmc_request *mrq, unsigned long timeout); > > void sdhci_initialize_data(struct sdhci_host *host, struct mmc_data *data); > > void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data); > > @@ -875,6 +884,9 @@ int sdhci_start_signal_voltage_switch(struct mmc_host *mmc, > > void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable); > > void sdhci_request_done_dma(struct sdhci_host *host, struct mmc_request *mrq); > > void sdhci_complete_work(struct work_struct *work); > > +void sdhci_timeout_timer(struct timer_list *t); > > +void sdhci_timeout_data_timer(struct timer_list *t); > > sdhci_timeout_timer() and sdhci_timeout_data_timer() > do not need export when __sdhci_uhs2_add_host() > is not needed anymore > I will update it in V7 version. > > +irqreturn_t sdhci_irq(int irq, void *dev_id); > > sdhci_irq() does not need export > when __sdhci_uhs2_add_host() is not needed anymore > I will update it in V7 version. > > irqreturn_t sdhci_thread_irq(int irq, void *dev_id); > > void sdhci_adma_write_desc(struct sdhci_host *host, void **desc, > > dma_addr_t addr, int len, unsigned int cmd); > Thanks, Victor Shih
diff --git a/drivers/mmc/host/sdhci-uhs2.c b/drivers/mmc/host/sdhci-uhs2.c index 769cf88b21cf..5349173b4f90 100644 --- a/drivers/mmc/host/sdhci-uhs2.c +++ b/drivers/mmc/host/sdhci-uhs2.c @@ -17,6 +17,7 @@ #include <linux/ktime.h> #include <linux/mmc/mmc.h> #include <linux/dmaengine.h> +#include <linux/regulator/consumer.h> #include "sdhci.h" #include "sdhci-uhs2.h" @@ -1015,6 +1016,176 @@ static irqreturn_t sdhci_uhs2_thread_irq(int irq, void *dev_id) return IRQ_HANDLED; } +/*****************************************************************************\ + * + * Device allocation/registration * + * * +\*****************************************************************************/ + +static int __sdhci_uhs2_add_host_v4(struct sdhci_host *host, u32 caps1) +{ + struct mmc_host *mmc; + u32 max_current_caps2; + + if (host->version < SDHCI_SPEC_400) + return 0; + + mmc = host->mmc; + + /* Support UHS2 */ + if (caps1 & SDHCI_SUPPORT_UHS2) + mmc->caps2 |= MMC_CAP2_SD_UHS2; + + max_current_caps2 = sdhci_readl(host, SDHCI_MAX_CURRENT_1); + + if ((caps1 & SDHCI_CAN_VDD2_180) && + !max_current_caps2 && + !IS_ERR(mmc->supply.vmmc2)) { + /* UHS2 - VDD2 */ + int curr = regulator_get_current_limit(mmc->supply.vmmc2); + + if (curr > 0) { + /* convert to SDHCI_MAX_CURRENT format */ + curr = curr / 1000; /* convert to mA */ + curr = curr / SDHCI_MAX_CURRENT_MULTIPLIER; + curr = min_t(u32, curr, SDHCI_MAX_CURRENT_LIMIT); + max_current_caps2 = curr; + } + } + + if (caps1 & SDHCI_CAN_VDD2_180) { + mmc->ocr_avail_uhs2 |= MMC_VDD2_165_195; + /* + * UHS2 doesn't require this. Only UHS-I bus needs to set + * max current. + */ + mmc->max_current_180_vdd2 = (max_current_caps2 & + SDHCI_MAX_CURRENT_VDD2_180_MASK) * + SDHCI_MAX_CURRENT_MULTIPLIER; + } else { + mmc->caps2 &= ~MMC_CAP2_SD_UHS2; + } + + return 0; +} + +static int sdhci_uhs2_host_ops_init(struct sdhci_host *host); + +static int __sdhci_uhs2_add_host(struct sdhci_host *host) +{ + unsigned int flags = WQ_UNBOUND | WQ_MEM_RECLAIM | WQ_HIGHPRI; + struct mmc_host *mmc = host->mmc; + int ret; + + if ((mmc->caps2 & MMC_CAP2_CQE) && + (host->quirks & SDHCI_QUIRK_BROKEN_CQE)) { + mmc->caps2 &= ~MMC_CAP2_CQE; + mmc->cqe_ops = NULL; + } + + host->complete_wq = alloc_workqueue("sdhci", flags, 0); + if (!host->complete_wq) + return -ENOMEM; + + INIT_WORK(&host->complete_work, host->complete_work_fn); + + timer_setup(&host->timer, sdhci_timeout_timer, 0); + timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); + + init_waitqueue_head(&host->buf_ready_int); + + sdhci_init(host, 0); + + ret = request_threaded_irq(host->irq, sdhci_irq, + host->thread_irq_fn, + IRQF_SHARED, mmc_hostname(mmc), host); + if (ret) { + pr_err("%s: Failed to request IRQ %d: %d\n", + mmc_hostname(mmc), host->irq, ret); + goto unwq; + } + + ret = mmc_add_host(mmc); + if (ret) + return 1; + + pr_info("%s: SDHCI controller on %s [%s] using %s\n", + mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)), + host->use_external_dma ? "External DMA" : + (host->flags & SDHCI_USE_ADMA) ? + (host->flags & SDHCI_USE_64_BIT_DMA) ? "ADMA 64-bit" : "ADMA" : + (host->flags & SDHCI_USE_SDMA) ? "DMA" : "PIO"); + + sdhci_enable_card_detection(host); + + return 0; + +unwq: + destroy_workqueue(host->complete_wq); + + return ret; +} + +static void __sdhci_uhs2_remove_host(struct sdhci_host *host, int dead) +{ + if (!sdhci_uhs2_mode(host)) + return; + + if (!dead) + sdhci_uhs2_reset(host, SDHCI_UHS2_SW_RESET_FULL); +} + +int sdhci_uhs2_add_host(struct sdhci_host *host) +{ + struct mmc_host *mmc = host->mmc; + int ret; + + ret = sdhci_setup_host(host); + if (ret) + return ret; + + if (host->version >= SDHCI_SPEC_400) { + ret = __sdhci_uhs2_add_host_v4(host, host->caps1); + if (ret) + goto cleanup; + } + + if ((mmc->caps2 & MMC_CAP2_SD_UHS2) && !host->v4_mode) + /* host doesn't want to enable UHS2 support */ + /* FIXME: Do we have to do some cleanup here? */ + mmc->caps2 &= ~MMC_CAP2_SD_UHS2; + + /* overwrite ops */ + if (mmc->caps2 & MMC_CAP2_SD_UHS2) + sdhci_uhs2_host_ops_init(host); + + host->complete_work_fn = sdhci_uhs2_complete_work; + host->thread_irq_fn = sdhci_uhs2_thread_irq; + + ret = __sdhci_uhs2_add_host(host); + if (ret) + goto cleanup2; + + return 0; + +cleanup2: + if (host->version >= SDHCI_SPEC_400) + __sdhci_uhs2_remove_host(host, 0); +cleanup: + sdhci_cleanup_host(host); + + return ret; +} +EXPORT_SYMBOL_GPL(sdhci_uhs2_add_host); + +void sdhci_uhs2_remove_host(struct sdhci_host *host, int dead) +{ + __sdhci_uhs2_remove_host(host, dead); + + sdhci_remove_host(host, dead); +} +EXPORT_SYMBOL_GPL(sdhci_uhs2_remove_host); + void sdhci_uhs2_request(struct mmc_host *mmc, struct mmc_request *mrq) { struct sdhci_host *host = mmc_priv(mmc); diff --git a/drivers/mmc/host/sdhci-uhs2.h b/drivers/mmc/host/sdhci-uhs2.h index 64b7f356c9fc..b2048c48d056 100644 --- a/drivers/mmc/host/sdhci-uhs2.h +++ b/drivers/mmc/host/sdhci-uhs2.h @@ -182,5 +182,7 @@ void sdhci_uhs2_clear_set_irqs(struct sdhci_host *host, u32 clear, u32 set); void sdhci_uhs2_request(struct mmc_host *mmc, struct mmc_request *mrq); int sdhci_uhs2_request_atomic(struct mmc_host *mmc, struct mmc_request *mrq); u32 sdhci_uhs2_irq(struct sdhci_host *host, u32 intmask); +int sdhci_uhs2_add_host(struct sdhci_host *host); +void sdhci_uhs2_remove_host(struct sdhci_host *host, int dead); #endif /* __SDHCI_UHS2_H */ diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 6c67b79102eb..82ad35f4d1b4 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -175,10 +175,11 @@ static void sdhci_set_card_detection(struct sdhci_host *host, bool enable) sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); } -static void sdhci_enable_card_detection(struct sdhci_host *host) +void sdhci_enable_card_detection(struct sdhci_host *host) { sdhci_set_card_detection(host, true); } +EXPORT_SYMBOL_GPL(sdhci_enable_card_detection); static void sdhci_disable_card_detection(struct sdhci_host *host) { @@ -369,7 +370,7 @@ static void sdhci_config_dma(struct sdhci_host *host) sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); } -static void sdhci_init(struct sdhci_host *host, int soft) +void sdhci_init(struct sdhci_host *host, int soft) { struct mmc_host *mmc = host->mmc; unsigned long flags; @@ -395,6 +396,7 @@ static void sdhci_init(struct sdhci_host *host, int soft) mmc->ops->set_ios(mmc, &mmc->ios); } } +EXPORT_SYMBOL_GPL(sdhci_init); static void sdhci_reinit(struct sdhci_host *host) { @@ -458,7 +460,7 @@ static void sdhci_led_control(struct led_classdev *led, spin_unlock_irqrestore(&host->lock, flags); } -static int sdhci_led_register(struct sdhci_host *host) +int sdhci_led_register(struct sdhci_host *host) { struct mmc_host *mmc = host->mmc; @@ -475,14 +477,16 @@ static int sdhci_led_register(struct sdhci_host *host) return led_classdev_register(mmc_dev(mmc), &host->led); } +EXPORT_SYMBOL_GPL(sdhci_led_register); -static void sdhci_led_unregister(struct sdhci_host *host) +void sdhci_led_unregister(struct sdhci_host *host) { if (host->quirks & SDHCI_QUIRK_NO_LED) return; led_classdev_unregister(&host->led); } +EXPORT_SYMBOL_GPL(sdhci_led_unregister); static inline void sdhci_led_activate(struct sdhci_host *host) { @@ -3265,7 +3269,7 @@ void sdhci_complete_work(struct work_struct *work) } EXPORT_SYMBOL_GPL(sdhci_complete_work); -static void sdhci_timeout_timer(struct timer_list *t) +void sdhci_timeout_timer(struct timer_list *t) { struct sdhci_host *host; unsigned long flags; @@ -3286,8 +3290,9 @@ static void sdhci_timeout_timer(struct timer_list *t) spin_unlock_irqrestore(&host->lock, flags); } +EXPORT_SYMBOL_GPL(sdhci_timeout_timer); -static void sdhci_timeout_data_timer(struct timer_list *t) +void sdhci_timeout_data_timer(struct timer_list *t) { struct sdhci_host *host; unsigned long flags; @@ -3318,6 +3323,7 @@ static void sdhci_timeout_data_timer(struct timer_list *t) spin_unlock_irqrestore(&host->lock, flags); } +EXPORT_SYMBOL_GPL(sdhci_timeout_data_timer); /*****************************************************************************\ * * @@ -3577,7 +3583,7 @@ static inline bool sdhci_defer_done(struct sdhci_host *host, data->host_cookie == COOKIE_MAPPED); } -static irqreturn_t sdhci_irq(int irq, void *dev_id) +irqreturn_t sdhci_irq(int irq, void *dev_id) { struct mmc_request *mrqs_done[SDHCI_MAX_MRQS] = {0}; irqreturn_t result = IRQ_NONE; @@ -3718,6 +3724,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) return result; } +EXPORT_SYMBOL_GPL(sdhci_irq); irqreturn_t sdhci_thread_irq(int irq, void *dev_id) { @@ -4122,6 +4129,9 @@ struct sdhci_host *sdhci_alloc_host(struct device *dev, host->max_timeout_count = 0xE; + host->complete_work_fn = sdhci_complete_work; + host->thread_irq_fn = sdhci_thread_irq; + return host; } @@ -4874,7 +4884,7 @@ int __sdhci_add_host(struct sdhci_host *host) if (!host->complete_wq) return -ENOMEM; - INIT_WORK(&host->complete_work, sdhci_complete_work); + INIT_WORK(&host->complete_work, host->complete_work_fn); timer_setup(&host->timer, sdhci_timeout_timer, 0); timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); @@ -4883,7 +4893,7 @@ int __sdhci_add_host(struct sdhci_host *host) sdhci_init(host, 0); - ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq, + ret = request_threaded_irq(host->irq, sdhci_irq, host->thread_irq_fn, IRQF_SHARED, mmc_hostname(mmc), host); if (ret) { pr_err("%s: Failed to request IRQ %d: %d\n", diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 4979af7cabca..5f090b5ecc61 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -629,6 +629,9 @@ struct sdhci_host { struct timer_list timer; /* Timer for timeouts */ struct timer_list data_timer; /* Timer for data timeouts */ + void (*complete_work_fn)(struct work_struct *work); + irqreturn_t (*thread_irq_fn)(int irq, void *dev_id); + #if IS_ENABLED(CONFIG_MMC_SDHCI_EXTERNAL_DMA) struct dma_chan *rx_chan; struct dma_chan *tx_chan; @@ -832,6 +835,12 @@ static inline void sdhci_read_caps(struct sdhci_host *host) } bool sdhci_data_line_cmd(struct mmc_command *cmd); +void sdhci_enable_card_detection(struct sdhci_host *host); +void sdhci_init(struct sdhci_host *host, int soft); +#if IS_REACHABLE(CONFIG_LEDS_CLASS) +int sdhci_led_register(struct sdhci_host *host); +void sdhci_led_unregister(struct sdhci_host *host); +#endif void sdhci_mod_timer(struct sdhci_host *host, struct mmc_request *mrq, unsigned long timeout); void sdhci_initialize_data(struct sdhci_host *host, struct mmc_data *data); void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data); @@ -875,6 +884,9 @@ int sdhci_start_signal_voltage_switch(struct mmc_host *mmc, void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable); void sdhci_request_done_dma(struct sdhci_host *host, struct mmc_request *mrq); void sdhci_complete_work(struct work_struct *work); +void sdhci_timeout_timer(struct timer_list *t); +void sdhci_timeout_data_timer(struct timer_list *t); +irqreturn_t sdhci_irq(int irq, void *dev_id); irqreturn_t sdhci_thread_irq(int irq, void *dev_id); void sdhci_adma_write_desc(struct sdhci_host *host, void **desc, dma_addr_t addr, int len, unsigned int cmd);