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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: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Ritesh Harjani 2016-11-21 12:07:17 +05:30 committed by Ulf Hansson
parent 83736352e0
commit 80031bdeb7
1 changed files with 17 additions and 0 deletions
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17
drivers/mmc/host/sdhci-msm.c
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@ -68,6 +68,8 @@
#define CORE_VENDOR_SPEC_CAPABILITIES0 0x11c #define CORE_VENDOR_SPEC_CAPABILITIES0 0x11c
#define SDHCI_MSM_MIN_CLOCK 400000
#define CDR_SELEXT_SHIFT 20 #define CDR_SELEXT_SHIFT 20
#define CDR_SELEXT_MASK (0xf << CDR_SELEXT_SHIFT) #define CDR_SELEXT_MASK (0xf << CDR_SELEXT_SHIFT)
#define CMUX_SHIFT_PHASE_SHIFT 24 #define CMUX_SHIFT_PHASE_SHIFT 24
@ -556,6 +558,19 @@ static irqreturn_t sdhci_msm_pwr_irq(int irq, void *data)
return IRQ_HANDLED; 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[] = { static const struct of_device_id sdhci_msm_dt_match[] = {
{ .compatible = "qcom,sdhci-msm-v4" }, { .compatible = "qcom,sdhci-msm-v4" },
{}, {},
@ -567,6 +582,8 @@ static const struct sdhci_ops sdhci_msm_ops = {
.platform_execute_tuning = sdhci_msm_execute_tuning, .platform_execute_tuning = sdhci_msm_execute_tuning,
.reset = sdhci_reset, .reset = sdhci_reset,
.set_clock = sdhci_set_clock, .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_bus_width = sdhci_set_bus_width,
.set_uhs_signaling = sdhci_msm_set_uhs_signaling, .set_uhs_signaling = sdhci_msm_set_uhs_signaling,
.voltage_switch = sdhci_msm_voltage_switch, .voltage_switch = sdhci_msm_voltage_switch,