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| author | Shawn Lin <shawn.lin@rock-chips.com> | 2025-12-20 08:22:05 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2026-02-23 14:06:53 +0300 |
| commit | c72be4c3066d5f8bee2c699e5c5ff6df5896f74e (patch) | |
| tree | 456e84836d1cdccb5dd7603201c8ae6cf4ac22f8 | |
| parent | 3449b31eb18f9439dcebfd999c51c47bed148d3b (diff) | |
| download | linux-c72be4c3066d5f8bee2c699e5c5ff6df5896f74e.tar.xz | |
mmc: dw_mmc: Introduce dw_mci_alloc_host()
This helper is used for variant drivers to allocate struct dw_mci
and set struct dw_mci as private data of struct mmc_host.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 17 | ||||
| -rw-r--r-- | drivers/mmc/host/dw_mmc.h | 1 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 4ec60740b0b4..ecb32dc2a8f0 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -3258,6 +3258,23 @@ static void dw_mci_enable_cd(struct dw_mci *host) } } +struct dw_mci *dw_mci_alloc_host(struct device *dev) +{ + struct mmc_host *mmc; + struct dw_mci *host; + + mmc = devm_mmc_alloc_host(dev, sizeof(struct dw_mci)); + if (!mmc) + return ERR_PTR(-ENOMEM); + + host = mmc_priv(mmc); + host->mmc = mmc; + host->dev = dev; + + return host; +} +EXPORT_SYMBOL(dw_mci_alloc_host); + int dw_mci_probe(struct dw_mci *host) { const struct dw_mci_drv_data *drv_data = host->drv_data; diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h index d5e4e6d67812..892b5451eb69 100644 --- a/drivers/mmc/host/dw_mmc.h +++ b/drivers/mmc/host/dw_mmc.h @@ -544,6 +544,7 @@ static inline void mci_fifo_l_writeq(void __iomem *addr, u64 value) #define __raw_readq(__reg) (*(volatile u64 __force *)(__reg)) #endif +extern struct dw_mci *dw_mci_alloc_host(struct device *device); extern int dw_mci_probe(struct dw_mci *host); extern void dw_mci_remove(struct dw_mci *host); #ifdef CONFIG_PM |