openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

mmc: dw_mmc: The "clock-freq-min-max" property was deprecated 

The "clock-freq-min-max" property was deprecated.
There is "max-frequency" property in drivers/mmc/core/host.c
"max-frequency" can be replaced with "clock-freq-min-max".
Minimum clock value might be set to 100K by default.
Then MMC core should try to find the correct value from 400K to 100K.
So it just needs to set Maximum clock value.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Jaehoon Chung 2016-11-17 16:40:40 +09:00 committed by Ulf Hansson
parent 0349c0854e
commit b023030f10
2 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
View File

@ -59,8 +59,9 @@ Optional properties:
is specified and the ciu clock is specified then we'll try to set the ciu
clock to this at probe time.
* clock-freq-min-max: Minimum and Maximum clock frequency for card output
* clock-freq-min-max (DEPRECATED): Minimum and Maximum clock frequency for card output
clock(cclk_out). If it's not specified, max is 200MHZ and min is 400KHz by default.
(Use the "max-frequency" instead of "clock-freq-min-max".)
* num-slots: specifies the number of slots supported by the controller.
The number of physical slots actually used could be equal or less than the

2
drivers/mmc/host/dw_mmc.c
View File

@ -2609,6 +2609,8 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
mmc->f_min = DW_MCI_FREQ_MIN;
mmc->f_max = DW_MCI_FREQ_MAX;
} else {
dev_info(host->dev,
"'clock-freq-min-max' property was deprecated.\n");
mmc->f_min = freq[0];
mmc->f_max = freq[1];
}