Commit a4faa492 authored by Shawn Lin's avatar Shawn Lin Committed by Ulf Hansson
Browse files

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: default avatarShawn Lin <shawn.lin@rock-chips.com>
Fixes: 800d78bf ("mmc: dw_mmc: add support for implementation specific callbacks")
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 325501d9

drivers/mmc/host/dw_mmc.c

+43 −30
Original line number Diff line number Diff line
@@ -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) {

CRA Git | Maintained and supported by SUSTech CRA and CCSE