diff options
| author | Arnd Hannemann <arnd@arndnet.de> | 2010-08-24 19:27:00 +0400 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2010-10-29 02:29:11 +0400 |
| commit | 998283e2e359249133f2f47db26669a55ff25c98 (patch) | |
| tree | 3c5866f8d91ee453491db747d7893dc379239ae5 /drivers/mfd/sh_mobile_sdhi.c | |
| parent | 19ca7502c508595edfb963e5dbcf62854a926506 (diff) | |
| download | linux-998283e2e359249133f2f47db26669a55ff25c98.tar.xz | |
mfd: Allow the platform to specify the sh_mobile_sdhi get_cd handler
On some platforms (e.g. AP4EVB) the card detect pin of a slot is not
directly connected to the sdhi hardware, so that polling needs to be used
with tmio_mmc and card detection is handled in the platform code.
This patch allows to set tmio_mmc capabilities (to pass the
MMC_CAP_NEEDS_POLL flag) and exposes a get_cd hook for that purpose.
Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/sh_mobile_sdhi.c')
| -rw-r--r-- | drivers/mfd/sh_mobile_sdhi.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mfd/sh_mobile_sdhi.c b/drivers/mfd/sh_mobile_sdhi.c index 49b4d069cbf9..01d83a41d570 100644 --- a/drivers/mfd/sh_mobile_sdhi.c +++ b/drivers/mfd/sh_mobile_sdhi.c @@ -65,6 +65,17 @@ static void sh_mobile_sdhi_set_pwr(struct platform_device *tmio, int state) p->set_pwr(pdev, state); } +static int sh_mobile_sdhi_get_cd(struct platform_device *tmio) +{ + struct platform_device *pdev = to_platform_device(tmio->dev.parent); + struct sh_mobile_sdhi_info *p = pdev->dev.platform_data; + + if (p && p->get_cd) + return p->get_cd(pdev); + else + return -ENOSYS; +} + static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev) { struct sh_mobile_sdhi *priv; @@ -106,10 +117,12 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev) mmc_data->hclk = clk_get_rate(priv->clk); mmc_data->set_pwr = sh_mobile_sdhi_set_pwr; + mmc_data->get_cd = sh_mobile_sdhi_get_cd; mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED; if (p) { mmc_data->flags = p->tmio_flags; mmc_data->ocr_mask = p->tmio_ocr_mask; + mmc_data->capabilities |= p->tmio_caps; } if (p && p->dma_slave_tx >= 0 && p->dma_slave_rx >= 0) { |