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| author |  Ludovic Barre <ludovic.barre@st.com>
| 2020-01-28 10:06:34 +0100 |
|---|---|---|
| committer |  Ulf Hansson <ulf.hansson@linaro.org>
| 2020-03-24 14:35:40 +0100 |
| commit | 7577316528816e8e9a49c1b4b5822bacbc62d113 (patch) | |
| tree | 3f85793c1eb4eb24c06cf282dfd5b36e81da91d0 /drivers/mmc/host/mmci.h | |
| parent | mmc: mmci_sdmmc: Add execute tuning with delay block (diff) | |
| download | linux-7577316528816e8e9a49c1b4b5822bacbc62d113.tar.gz linux-7577316528816e8e9a49c1b4b5822bacbc62d113.tar.bz2 linux-7577316528816e8e9a49c1b4b5822bacbc62d113.zip | |
mmc: mmci: Add callbacks for to manage signal voltage switch
A variant may need to define some actions before and after a voltage
switch.
This patch adds 2 callbacks to manage signal voltage switch in the struct
mmci_host_ops. ->pre_sig_volt_switch() allows to prepare a signal voltage
switch before sending the SD_SWITCH_VOLTAGE command (CMD11).
->post_sig_volt_switch callback allows specific actions to be executed,
after the I/O signal voltage level has been changed.
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Link: https://lore.kernel.org/r/20200128090636.13689-8-ludovic.barre@st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/mmci.h')
| -rw-r--r-- | drivers/mmc/host/mmci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index ddcdfb827996..c3bc0a38d4cb 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -377,6 +377,8 @@ struct mmci_host_ops { void (*set_clkreg)(struct mmci_host *host, unsigned int desired); void (*set_pwrreg)(struct mmci_host *host, unsigned int pwr); bool (*busy_complete)(struct mmci_host *host, u32 status, u32 err_msk); + void (*pre_sig_volt_switch)(struct mmci_host *host); + int (*post_sig_volt_switch)(struct mmci_host *host, struct mmc_ios *ios); }; struct mmci_host { |