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....@linaro.org>
Cc: Troy Kisky <troy.ki...@boundarydevices.com>
Cc: Grant Likely <grant.lik...@secretlab.ca>
Cc: Wolfram Sang <w.s...@pengutronix.de>
Cc: Chris Ball <c...@laptop.org>
---
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 3cc6f61..0b0e62e 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 unsigned int esdhc_pltfm_get_max_blk_size(struct sdhci_host *host)
@@ -69,8 +70,9 @@ 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);
@@ -92,8 +94,7 @@ 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)))
@@ -210,8 +211,9 @@ 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:
@@ -291,12 +293,14 @@ 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) {
@@ -373,8 +377,8 @@ 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);
--
1.7.4.1
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