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Commit 80031bde authored by Ritesh Harjani's avatar Ritesh Harjani Committed by Ulf Hansson
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mmc: sdhci-msm: Add get_min_clock() and get_max_clock() callback 



This add get_min_clock() and get_max_clock() callback
for sdhci-msm. sdhci-msm min/max clocks may be different
hence implement these callbacks.

Signed-off-by: default avatarSahitya Tummala <stummala@codeaurora.org>
Signed-off-by: default avatarRitesh Harjani <riteshh@codeaurora.org>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 83736352

drivers/mmc/host/sdhci-msm.c

+17 −0
Original line number Diff line number Diff line
@@ -68,6 +68,8 @@ 


#define CORE_VENDOR_SPEC_CAPABILITIES0	0x11c



#define SDHCI_MSM_MIN_CLOCK	400000



#define CDR_SELEXT_SHIFT	20

#define CDR_SELEXT_MASK		(0xf << CDR_SELEXT_SHIFT)

#define CMUX_SHIFT_PHASE_SHIFT	24
@@ -556,6 +558,19 @@ static irqreturn_t sdhci_msm_pwr_irq(int irq, void *data) 
	return IRQ_HANDLED;

}



static unsigned int sdhci_msm_get_max_clock(struct sdhci_host *host)

{

	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);

	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);



	return clk_round_rate(msm_host->clk, ULONG_MAX);

}



static unsigned int sdhci_msm_get_min_clock(struct sdhci_host *host)

{

	return SDHCI_MSM_MIN_CLOCK;

}



static const struct of_device_id sdhci_msm_dt_match[] = {

	{ .compatible = "qcom,sdhci-msm-v4" },

	{},
@@ -567,6 +582,8 @@ static const struct sdhci_ops sdhci_msm_ops = { 
	.platform_execute_tuning = sdhci_msm_execute_tuning,

	.reset = sdhci_reset,

	.set_clock = sdhci_set_clock,

	.get_min_clock = sdhci_msm_get_min_clock,

	.get_max_clock = sdhci_msm_get_max_clock,

	.set_bus_width = sdhci_set_bus_width,

	.set_uhs_signaling = sdhci_msm_set_uhs_signaling,

	.voltage_switch = sdhci_msm_voltage_switch,