redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

mmc: host: sh_mobile_sdhi: don't populate unneeded functions 

Populating card_busy caused a side-effect on a chip variant we don't
have documentation for (r8a73a4). So, enable it and voltage switching
only on devices known to support those features.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Fixes: 452e5eef6d ("mmc: tmio: Add UHS-I mode support")
hifive-unleashed-5.1
Wolfram Sang 2016-08-24 11:34:38 +02:00 committed by Ulf Hansson
parent 6a4679f312
commit ff026099d7
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/mmc/host/sh_mobile_sdhi.c
View File

@ -376,8 +376,14 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
host->clk_update = sh_mobile_sdhi_clk_update;
host->clk_disable = sh_mobile_sdhi_clk_disable;
host->multi_io_quirk = sh_mobile_sdhi_multi_io_quirk;
host->card_busy = sh_mobile_sdhi_card_busy;
host->start_signal_voltage_switch = sh_mobile_sdhi_start_signal_voltage_switch;
/* SDR speeds are only available on Gen2+ */
if (mmc_data->flags & TMIO_MMC_MIN_RCAR2) {
/* card_busy caused issues on r8a73a4 (pre-Gen2) CD-less SDHI */
host->card_busy = sh_mobile_sdhi_card_busy;
host->start_signal_voltage_switch =
sh_mobile_sdhi_start_signal_voltage_switch;
}
/* Orginally registers were 16 bit apart, could be 32 or 64 nowadays */
if (!host->bus_shift && resource_size(res) > 0x100) /* old way to determine the shift */