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mmc: dw_mmc: Factor out dw_mci_init_slot_caps 

Factor out dw_mci_init_slot_caps to consolidate parsing
all differents types of capabilities from host contrllers.
No functional change intended.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Fixes: 800d78bfcc ("mmc: dw_mmc: add support for implementation specific callbacks")
Cc: <stable@vger.kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Shawn Lin 2018-02-24 14:17:22 +08:00 committed by Ulf Hansson
parent 325501d936
commit a4faa4929e
1 changed files with 43 additions and 30 deletions
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73
drivers/mmc/host/dw_mmc.c
View File

@ -2778,12 +2778,50 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
static int dw_mci_init_slot_caps(struct dw_mci_slot *slot)
{
struct dw_mci *host = slot->host;
const struct dw_mci_drv_data *drv_data = host->drv_data;
struct mmc_host *mmc = slot->mmc;
int ctrl_id;
if (host->pdata->caps)
mmc->caps = host->pdata->caps;
/*
* Support MMC_CAP_ERASE by default.
* It needs to use trim/discard/erase commands.
*/
mmc->caps |= MMC_CAP_ERASE;
if (host->pdata->pm_caps)
mmc->pm_caps = host->pdata->pm_caps;
if (host->dev->of_node) {
ctrl_id = of_alias_get_id(host->dev->of_node, "mshc");
if (ctrl_id < 0)
ctrl_id = 0;
} else {
ctrl_id = to_platform_device(host->dev)->id;
}
if (drv_data && drv_data->caps)
mmc->caps |= drv_data->caps[ctrl_id];
if (host->pdata->caps2)
mmc->caps2 = host->pdata->caps2;
/* Process SDIO IRQs through the sdio_irq_work. */
if (mmc->caps & MMC_CAP_SDIO_IRQ)
mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
return 0;
}
static int dw_mci_init_slot(struct dw_mci *host)
{
struct mmc_host *mmc;
struct dw_mci_slot *slot;
const struct dw_mci_drv_data *drv_data = host->drv_data;
int ctrl_id, ret;
int ret;
u32 freq[2];
mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), host->dev);
@ -2817,38 +2855,13 @@ static int dw_mci_init_slot(struct dw_mci *host)
if (!mmc->ocr_avail)
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
if (host->pdata->caps)
mmc->caps = host->pdata->caps;
/*
* Support MMC_CAP_ERASE by default.
* It needs to use trim/discard/erase commands.
*/
mmc->caps |= MMC_CAP_ERASE;
if (host->pdata->pm_caps)
mmc->pm_caps = host->pdata->pm_caps;
if (host->dev->of_node) {
ctrl_id = of_alias_get_id(host->dev->of_node, "mshc");
if (ctrl_id < 0)
ctrl_id = 0;
} else {
ctrl_id = to_platform_device(host->dev)->id;
}
if (drv_data && drv_data->caps)
mmc->caps |= drv_data->caps[ctrl_id];
if (host->pdata->caps2)
mmc->caps2 = host->pdata->caps2;
ret = mmc_of_parse(mmc);
if (ret)
goto err_host_allocated;
/* Process SDIO IRQs through the sdio_irq_work. */
if (mmc->caps & MMC_CAP_SDIO_IRQ)
mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
ret = dw_mci_init_slot_caps(slot);
if (ret)
goto err_host_allocated;
/* Useful defaults if platform data is unset. */
if (host->use_dma == TRANS_MODE_IDMAC) {