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| author |   Ritesh Harjani <riteshh@codeaurora.org> | 2016-11-21 12:07:17 +0530 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2016-11-29 09:05:14 +0100 |
| commit | 80031bdeb764f5881136af13ce42118be4394440 (patch) | |
| tree | 45f89ee7930869a755b8e501be59d5ddb9a60316 /drivers/mmc | |
| parent | mmc: sdhci-msm: Update DLL reset sequence (diff) | |
| download | linux-dev-80031bdeb764f5881136af13ce42118be4394440.tar.xz linux-dev-80031bdeb764f5881136af13ce42118be4394440.zip | |
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>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-msm.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index fc093b8dd37a..aaeaf475e395 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -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, |