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mmc: tmio: refactor tuning execution into SDHI driver

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Move Renesas specific code for executing the tuning with a SCC into the
SDHI driver and leave only a generic call in the TMIO driver. Simplify
the code a little by removing init_tuning() and prepare_tuning()
callbacks. The latter is directly folded into the new execute_tuning()
callbacks.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20200129203709.30493-2-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Wolfram Sang
2020-01-29 21:37:04 +01:00
committed by Ulf Hansson
parent 6199a10e7e
commit 0c482d829a
3 changed files with 37 additions and 44 deletions
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3
drivers/mmc/host/tmio_mmc.h
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@@ -176,14 +176,13 @@ struct tmio_mmc_host {
int (*write16_hook)(struct tmio_mmc_host *host, int addr);
void (*reset)(struct tmio_mmc_host *host);
void (*hw_reset)(struct tmio_mmc_host *host);
void (*prepare_tuning)(struct tmio_mmc_host *host, unsigned long tap);
bool (*check_scc_error)(struct tmio_mmc_host *host);
/*
* Mandatory callback for tuning to occur which is optional for SDR50
* and mandatory for SDR104.
*/
unsigned int (*init_tuning)(struct tmio_mmc_host *host);
int (*execute_tuning)(struct tmio_mmc_host *host, u32 opcode);
int (*select_tuning)(struct tmio_mmc_host *host);
/* Tuning values: 1 for success, 0 for failure */