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authorSimon Horman <horms+renesas@verge.net.au>2016-11-03 17:16:01 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2016-11-29 11:00:56 +0300
commit2f87365f832bbc26e32f23588aaeb40abe15ff0d (patch)
treef6cc93d56cb0d539ea5e6adce7a2f53c770fa8ab /drivers/mmc/host/tmio_mmc.h
parent96e0b2ba00ee5dacb12bed6585145ce784ec9153 (diff)
downloadlinux-2f87365f832bbc26e32f23588aaeb40abe15ff0d.tar.xz
mmc: tmio: document mandatory and optional callbacks
Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/tmio_mmc.h')
-rw-r--r--drivers/mmc/host/tmio_mmc.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 839755c7f2b0..f46d25e1612c 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -154,8 +154,10 @@ struct tmio_mmc_host {
bool native_hotplug;
bool sdio_irq_enabled;
- int (*write16_hook)(struct tmio_mmc_host *host, int addr);
+ /* Mandatory callback */
int (*clk_enable)(struct tmio_mmc_host *host);
+
+ /* Optional callbacks */
unsigned int (*clk_update)(struct tmio_mmc_host *host,
unsigned int new_clock);
void (*clk_disable)(struct tmio_mmc_host *host);
@@ -164,6 +166,7 @@ struct tmio_mmc_host {
int (*card_busy)(struct mmc_host *mmc);
int (*start_signal_voltage_switch)(struct mmc_host *mmc,
struct mmc_ios *ios);
+ int (*write16_hook)(struct tmio_mmc_host *host, int addr);
};
struct tmio_mmc_host *tmio_mmc_host_alloc(struct platform_device *pdev);