Ulf, On Mon, Jan 26, 2015 at 7:15 AM, Ulf Hansson <ulf.hans...@linaro.org> wrote: > On 26 January 2015 at 12:19, Addy Ke <addy...@rock-chips.com> wrote: >> We need to take the card pointer in execute_tuning() for mmc_send_status(), > > mmc_send_status() is an mmc core function, not intended for host's to call. > >> but mmc->card is NULL in tuning state. So we need change the first parameter >> of execute_tuning() to card pointer(struct mmc_card * card). > > So, why do we need this?
I asked Addy to post upstream against mmc_send_tuning(), but I guess he didn't (he posted against Alex's NAKed patch instead). ...when I talked to him about it, Addy was asserting that when tuning fails it is important (at least on dw_mmc on rk3288) that we wait for the card to stop being busy and that the way to detect was using mmc_send_status(). That would mean that against upstream you'd need to change mmc_send_tuning() to take in the card as well (or move the "host->card = card" assignment to before UHS init, which seems less desirable?) What do you think about that? Is there a better solution? -Doug -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
