Messages in this thread Patch in this message | | | From | Veerabhadrarao Badiganti <> | Subject | [PATCH V1] mmc: sdhci-msm: Override DLL_CONFIG only if the valid value is supplied | Date | Wed, 8 Jul 2020 18:41:19 +0530 |
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During DLL initialization, the DLL_CONFIG register value would be updated with the value supplied from the device-tree.
Override this register only if a valid value is supplied.
Fixes: 03591160ca19 ("mmc: sdhci-msm: Read and use DLL Config property from device tree file") Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org> --- drivers/mmc/host/sdhci-msm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index efd2bae1430c..93d67a3a899f 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -626,8 +626,9 @@ static int msm_init_cm_dll(struct sdhci_host *host) config &= ~CORE_CLK_PWRSAVE; writel_relaxed(config, host->ioaddr + msm_offset->core_vendor_spec); - config = msm_host->dll_config; - writel_relaxed(config, host->ioaddr + msm_offset->core_dll_config); + if (msm_host->dll_config) + writel_relaxed(msm_host->dll_config, + host->ioaddr + msm_offset->core_dll_config); if (msm_host->use_14lpp_dll_reset) { config = readl_relaxed(host->ioaddr + -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
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