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mmc: mmci: add validate_data callback

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This patch adds validate_data callback at mmci_host_ops
to check specific constraints of variant.
Move mmci_validate_data function to regroup mmci_host_ops interfaces.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Ludovic Barre 2018-10-08 14:08:41 +02:00 committed by Ulf Hansson
parent cfccc6ac00
commit e0da172121
2 changed files with 22 additions and 18 deletions
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39
drivers/mmc/host/mmci.c
View File

@ -239,24 +239,6 @@ static int mmci_card_busy(struct mmc_host *mmc)
return busy;
}
/*
* Validate mmc prerequisites
*/
static int mmci_validate_data(struct mmci_host *host,
struct mmc_data *data)
{
if (!data)
return 0;
if (!is_power_of_2(data->blksz)) {
dev_err(mmc_dev(host->mmc),
"unsupported block size (%d bytes)\n", data->blksz);
return -EINVAL;
}
return 0;
}
static void mmci_reg_delay(struct mmci_host *host)
{
/*
@ -392,6 +374,27 @@ void mmci_dma_setup(struct mmci_host *host)
host->use_dma = true;
}
/*
* Validate mmc prerequisites
*/
static int mmci_validate_data(struct mmci_host *host,
struct mmc_data *data)
{
if (!data)
return 0;
if (!is_power_of_2(data->blksz)) {
dev_err(mmc_dev(host->mmc),
"unsupported block size (%d bytes)\n", data->blksz);
return -EINVAL;
}
if (host->ops && host->ops->validate_data)
return host->ops->validate_data(host, data);
return 0;
}
int mmci_prep_data(struct mmci_host *host, struct mmc_data *data, bool next)
{
int err;

1
drivers/mmc/host/mmci.h
View File

@ -273,6 +273,7 @@ struct variant_data {
/* mmci variant callbacks */
struct mmci_host_ops {
int (*validate_data)(struct mmci_host *host, struct mmc_data *data);
int (*prep_data)(struct mmci_host *host, struct mmc_data *data,
bool next);
void (*unprep_data)(struct mmci_host *host, struct mmc_data *data,