Add mmcX.write_reliable parameter so it can be queried by scripts and board code.
Signed-off-by: Michael Grzeschik <[email protected]> --- drivers/mci/mci-core.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c index 48a3df9ec9..1b7526abfa 100644 --- a/drivers/mci/mci-core.c +++ b/drivers/mci/mci-core.c @@ -2680,6 +2680,22 @@ static int mci_get_partition_setting_completed(struct mci *mci) return ret; } +static int mci_get_write_reliable(struct mci *mci) +{ + u8 *ext_csd; + int ret; + + ext_csd = mci_get_ext_csd(mci); + if (IS_ERR(ext_csd)) + return PTR_ERR(ext_csd); + + ret = ext_csd[EXT_CSD_WR_REL_SET] & 0x1f; + + dma_free(ext_csd); + + return ret; +} + /** * Probe an MCI card at the given host interface * @param mci MCI device instance @@ -2796,6 +2812,13 @@ static int mci_card_probe(struct mci *mci) "Failed to determine EXT_CSD_PARTITION_SETTING_COMPLETED\n"); else dev_add_param_bool_fixed(&mci->dev, "partitioning_completed", ret); + + ret = mci_get_write_reliable(mci); + if (ret < 0) + dev_dbg(&mci->dev, + "Failed to determine EXT_CSD_WR_REL_SET\n"); + else + dev_add_param_bool_fixed(&mci->dev, "write_reliable", ret); } mci_parse_cid(mci); -- 2.39.5
