mmc: sdhci-esdhc-imx: add strobe-dll-delay-target support
strobe-dll-delay-target is the delay cell add on the strobe line. Strobe line the the uSDHC loopback read clock which is use in HS400 mode. Different strobe-dll-delay-target may need to set for different board/SoC. If this delay cell is not set to an appropriate value, we may see some read operation meet CRC error after HS400 mode select which already pass the tuning. This patch add the strobe-dll-delay-target setting in driver, so that user can easily config this delay cell in dts file. Signed-off-by: Haibo Chen <haibo.chen@nxp.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/1582100757-20683-1-git-send-email-haibo.chen@nxp.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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