[PATCH v6 3/9] mmc: tmio: document mandatory and optional callbacks

[Simon Horman]

Signed-off-by: Simon Horman <horms+rene...@verge.net.au>
---
v5
* New patch
---
 drivers/mmc/host/tmio_mmc.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 1f1cb2628f67..4b36cb5c2d9c 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -151,8 +151,10 @@ 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);
@@ -161,6 +163,7 @@ 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);
-- 
2.7.0.rc3.207.g0ac5344