diff options
| author |   Shawn Guo <shawn.guo@linaro.org> | 2011-07-06 22:57:48 +0800 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2011-07-27 09:31:21 +0800 |
| commit | 842afc02cf04f0474392b4c5efd808996a804fa6 (patch) | |
| tree | fb144a2ee86fca78029c171b3f30753785aeb61e /drivers/mmc | |
| parent | mmc: sdhci-esdhc-imx: extend card_detect and write_protect support for mx5 (diff) | |
| download | linux-dev-842afc02cf04f0474392b4c5efd808996a804fa6.tar.xz linux-dev-842afc02cf04f0474392b4c5efd808996a804fa6.zip | |
mmc: sdhci-esdhc-imx: do not reference platform data after probe
The patch copies platform data into pltfm_imx_data and reference
the data there than platform data after probe.
This work is inspired by Grant Likely and Troy Kisky.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Troy Kisky <troy.kisky@boundarydevices.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: Chris Ball <cjb@laptop.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 4269bb498ff0..58fc6533d250 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -45,6 +45,7 @@ struct pltfm_imx_data { int flags; u32 scratchpad; + struct esdhc_platform_data boarddata; }; static inline void esdhc_clrset_le(struct sdhci_host *host, u32 mask, u32 val, int reg) @@ -57,8 +58,9 @@ static inline void esdhc_clrset_le(struct sdhci_host *host, u32 mask, u32 val, i static u32 esdhc_readl_le(struct sdhci_host *host, int reg) { - struct esdhc_platform_data *boarddata = - host->mmc->parent->platform_data; + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct pltfm_imx_data *imx_data = pltfm_host->priv; + struct esdhc_platform_data *boarddata = &imx_data->boarddata; /* fake CARD_PRESENT flag */ u32 val = readl(host->ioaddr + reg); @@ -80,8 +82,7 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg) { struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct pltfm_imx_data *imx_data = pltfm_host->priv; - struct esdhc_platform_data *boarddata = - host->mmc->parent->platform_data; + struct esdhc_platform_data *boarddata = &imx_data->boarddata; if (unlikely((reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE) && (boarddata->cd_type == ESDHC_CD_GPIO))) @@ -198,8 +199,9 @@ static unsigned int esdhc_pltfm_get_min_clock(struct sdhci_host *host) static unsigned int esdhc_pltfm_get_ro(struct sdhci_host *host) { - struct esdhc_platform_data *boarddata = - host->mmc->parent->platform_data; + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct pltfm_imx_data *imx_data = pltfm_host->priv; + struct esdhc_platform_data *boarddata = &imx_data->boarddata; switch (boarddata->wp_type) { case ESDHC_WP_GPIO: @@ -281,12 +283,14 @@ static int __devinit sdhci_esdhc_imx_probe(struct platform_device *pdev) if (!(cpu_is_mx25() || cpu_is_mx35() || cpu_is_mx51())) imx_data->flags |= ESDHC_FLAG_MULTIBLK_NO_INT; - boarddata = host->mmc->parent->platform_data; - if (!boarddata) { + if (!host->mmc->parent->platform_data) { dev_err(mmc_dev(host->mmc), "no board data!\n"); err = -EINVAL; goto no_board_data; } + imx_data->boarddata = *((struct esdhc_platform_data *) + host->mmc->parent->platform_data); + boarddata = &imx_data->boarddata; /* write_protect */ if (boarddata->wp_type == ESDHC_WP_GPIO) { @@ -363,8 +367,8 @@ static int __devexit sdhci_esdhc_imx_remove(struct platform_device *pdev) { struct sdhci_host *host = platform_get_drvdata(pdev); struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); - struct esdhc_platform_data *boarddata = host->mmc->parent->platform_data; struct pltfm_imx_data *imx_data = pltfm_host->priv; + struct esdhc_platform_data *boarddata = &imx_data->boarddata; int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff); sdhci_remove_host(host, dead); |