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| author | Haibo Chen <haibo.chen@freescale.com> | 2015-08-11 14:38:27 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-08-27 15:50:50 +0300 |
| commit | d407e30ba614b1542c8ac032f8fb2332b8071efe (patch) | |
| tree | 664e9613150ee52d9370e712c9e393a10e4c3647 /include/linux/platform_data | |
| parent | 28b07674f287092f3b63a7d5e5c7e68bdeed0247 (diff) | |
| download | linux-d407e30ba614b1542c8ac032f8fb2332b8071efe.tar.xz | |
mmc: sdhci-esdhc-imx: add tuning-step setting support
tuning-step is the delay cell steps in tuning procedure. The default value
of tuning-step is 1. Some boards or cards need another value to pass the
tuning procedure. For example, imx7d-sdb board need the tuning-step value
as 2, otherwise it can't pass the tuning procedure.
So this patch add the tuning-step setting in driver, so that user can set
the tuning-step value in dts.
Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Acked-by: Dong Aisheng <aisheng.dong@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/platform_data')
| -rw-r--r-- | include/linux/platform_data/mmc-esdhc-imx.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/platform_data/mmc-esdhc-imx.h b/include/linux/platform_data/mmc-esdhc-imx.h index e1571efa3f2b..95ccab3f454a 100644 --- a/include/linux/platform_data/mmc-esdhc-imx.h +++ b/include/linux/platform_data/mmc-esdhc-imx.h @@ -45,5 +45,6 @@ struct esdhc_platform_data { int max_bus_width; bool support_vsel; unsigned int delay_line; + unsigned int tuning_step; /* The delay cell steps in tuning procedure */ }; #endif /* __ASM_ARCH_IMX_ESDHC_H */ |