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mmc: dw_mmc: deprecated the "num-slots" property

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dwmmc controller is supporting only one slot per a IP.
Even though DWMMC IP is provided the multiple slot, but there is no
usage in real world.
In mmc subsystem, not allow the multiple slot concept.
Then "num-slots" property is deprecated.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.comi>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Jaehoon Chung 2017-06-05 13:41:30 +09:00 • committed by Ulf Hansson
parent 1a12a70fa6
commit d30a8f7bdf
1 changed files with 8 additions and 13 deletions
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21
drivers/mmc/host/dw_mmc.c
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@ -2973,7 +2973,8 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
} }
/* find out number of slots supported */ /* find out number of slots supported */
device_property_read_u32(dev, "num-slots", &pdata->num_slots); if (device_property_read_u32(dev, "num-slots", &pdata->num_slots))
dev_info(dev, "'num-slots' was deprecated.\n");
if (device_property_read_u32(dev, "fifo-depth", &pdata->fifo_depth)) if (device_property_read_u32(dev, "fifo-depth", &pdata->fifo_depth))
dev_info(dev, dev_info(dev,
@ -3203,18 +3204,12 @@ int dw_mci_probe(struct dw_mci *host)
if (ret) if (ret)
goto err_dmaunmap; goto err_dmaunmap;
if (host->pdata->num_slots) /*
host->num_slots = host->pdata->num_slots; * Even though dwmmc IP is provided the multiple slots,
else * there is no use case in mmc subsystem.
host->num_slots = 1; * dwmmc host controller needs to initialize the one slot per an IP.
*/
if (host->num_slots < 1 || host->num_slots = 1;
host->num_slots > SDMMC_GET_SLOT_NUM(mci_readl(host, HCON))) {
dev_err(host->dev,
"Platform data must supply correct num_slots.\n");
ret = -ENODEV;
goto err_clk_ciu;
}
/* /*
* Enable interrupts for command done, data over, data empty, * Enable interrupts for command done, data over, data empty,