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Commit bd7d0754 authored by Ritesh Harjani's avatar Ritesh Harjani Committed by Gerrit - the friendly Code Review server
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mmc: sdhci: Notify sdhci-msm for enhanced strobe 



Provide sdhci host ops of enhanced strobe to notify
sdhci-msm on enabling/disabling cmdq. This is needed
because of following:

Before running CMDQ transfers in HS400 Enhanced Strobe mode,
SW should write 3 to
HC_VENDOR_SPECIFIC_FUNC3.CMDEN_HS400_INPUT_MASK_CNT register.
Default reset value of this register is 2.

Change-Id: I987605cd21f137dea49ddf3e8db3f1f41b5b501f
Signed-off-by: default avatarRitesh Harjani <riteshh@codeaurora.org>
parent 2d895cb5

drivers/mmc/host/sdhci.c

+14 −0
Original line number Diff line number Diff line
@@ -3506,6 +3506,14 @@ static void sdhci_cmdq_set_block_size(struct mmc_host *mmc) 
	sdhci_set_blk_size_reg(host, 512, 0);

}



static void sdhci_enhanced_strobe_mask(struct mmc_host *mmc, bool set)

{

	struct sdhci_host *host = mmc_priv(mmc);



	if (host->ops->enhanced_strobe_mask)

		host->ops->enhanced_strobe_mask(host, set);

}



static void sdhci_cmdq_clear_set_dumpregs(struct mmc_host *mmc, bool set)

{

	struct sdhci_host *host = mmc_priv(mmc);
@@ -3559,6 +3567,11 @@ static void sdhci_cmdq_set_block_size(struct mmc_host *mmc) 


}



static void sdhci_enhanced_strobe_mask(struct mmc_host *mmc, bool set)

{



}



static void sdhci_cmdq_clear_set_dumpregs(struct mmc_host *mmc, bool set)

{
@@ -3580,6 +3593,7 @@ static const struct cmdq_host_ops sdhci_cmdq_ops = { 
	.dump_vendor_regs = sdhci_cmdq_dump_vendor_regs,

	.set_block_size = sdhci_cmdq_set_block_size,

	.clear_set_dumpregs = sdhci_cmdq_clear_set_dumpregs,

	.enhanced_strobe_mask = sdhci_enhanced_strobe_mask,

	.crypto_cfg	= sdhci_cmdq_crypto_cfg,

	.post_cqe_halt = sdhci_cmdq_post_cqe_halt,

};

drivers/mmc/host/sdhci.h

+1 −0
Original line number Diff line number Diff line
@@ -328,6 +328,7 @@ struct sdhci_ops { 
					  u32 type);

	int	(*enable_controller_clock)(struct sdhci_host *host);

	void	(*clear_set_dumpregs)(struct sdhci_host *host, bool set);

	void	(*enhanced_strobe_mask)(struct sdhci_host *host, bool set);

};



#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS