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| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2012-06-20 19:10:34 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-07-21 00:02:11 -0400 |
| commit | 71da63e767c393c0ebbd3c65df428df0ce42a16c (patch) | |
| tree | 5c6ce3cc09ae36c3f5f8e33c6de75ea8673ad009 | |
| parent | b958a67c6bbe0a886bebc618aac7a059cdbab418 (diff) | |
| download | linux-3.10-71da63e767c393c0ebbd3c65df428df0ce42a16c.tar.gz linux-3.10-71da63e767c393c0ebbd3c65df428df0ce42a16c.tar.bz2 linux-3.10-71da63e767c393c0ebbd3c65df428df0ce42a16c.zip | |
mmc: sdhi: do not install dummy callbacks
Currently the SDHI glue for the TMIO MMC driver installs dummy .get_cd() and
.set_pwr() callbacks even if the platform didn't supply them. This is not
necessary, since the TMIO MMC driver itself checks for NULL callbacks. This
is also dubious if the platform provides a regulator for SD-card power
switching. It is better to only install those callbacks, if they are really
provided by the platform.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
| -rw-r--r-- | drivers/mmc/host/sh_mobile_sdhi.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c index d8b167c8493..42f07fa6e04 100644 --- a/drivers/mmc/host/sh_mobile_sdhi.c +++ b/drivers/mmc/host/sh_mobile_sdhi.c @@ -64,18 +64,14 @@ static void sh_mobile_sdhi_set_pwr(struct platform_device *pdev, int state) { struct sh_mobile_sdhi_info *p = pdev->dev.platform_data; - if (p && p->set_pwr) - p->set_pwr(pdev, state); + p->set_pwr(pdev, state); } static int sh_mobile_sdhi_get_cd(struct platform_device *pdev) { struct sh_mobile_sdhi_info *p = pdev->dev.platform_data; - if (p && p->get_cd) - return p->get_cd(pdev); - else - return -ENOSYS; + return p->get_cd(pdev); } static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host) @@ -153,8 +149,10 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev) goto eclkget; } - mmc_data->set_pwr = sh_mobile_sdhi_set_pwr; - mmc_data->get_cd = sh_mobile_sdhi_get_cd; + if (p->set_pwr) + mmc_data->set_pwr = sh_mobile_sdhi_set_pwr; + if (p->get_cd) + mmc_data->get_cd = sh_mobile_sdhi_get_cd; mmc_data->clk_enable = sh_mobile_sdhi_clk_enable; mmc_data->clk_disable = sh_mobile_sdhi_clk_disable; mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED; |