Commit 3ec2d511 authored Jul 08, 2020 by Veerabhadrarao Badiganti Committed by Ulf Hansson Jul 08, 2020

mmc: sdhci-msm: Override DLL_CONFIG only if the valid value is supplied

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: 03591160 ("mmc: sdhci-msm: Read and use DLL Config property from device tree file")
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Link: https://lore.kernel.org/r/1594213888-2780-1-git-send-email-vbadigan@codeaurora.org

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

parent f8884711

drivers/mmc/host/sdhci-msm.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -618,8 +618,9 @@ 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 +