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Date: Thu, 30 Aug 2018 18:06:21 +0300 From: Aapo Vienamo <avienamo@...dia.com> To: Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, Thierry Reding <thierry.reding@...il.com>, Jonathan Hunter <jonathanh@...dia.com>, Ulf Hansson <ulf.hansson@...aro.org>, Adrian Hunter <adrian.hunter@...el.com>, Mikko Perttunen <mperttunen@...dia.com>, "Stefan Agner" <stefan@...er.ch> CC: <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>, Aapo Vienamo <avienamo@...dia.com> Subject: [PATCH v3 20/38] mmc: tegra: Parse default trim and tap from dt Parse the default inbound and outbound sampling trimmer values from the device tree. Signed-off-by: Aapo Vienamo <avienamo@...dia.com> Acked-by: Thierry Reding <treding@...dia.com> --- drivers/mmc/host/sdhci-tegra.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index d0a536f1b994..dd8cb3f3cecc 100644 --- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -107,6 +107,9 @@ struct sdhci_tegra { struct pinctrl_state *pinctrl_state_1v8; struct sdhci_tegra_autocal_offsets autocal_offsets; + + u32 default_tap; + u32 default_trim; }; static u16 tegra_sdhci_readw(struct sdhci_host *host, int reg) @@ -461,6 +464,23 @@ static void tegra_sdhci_parse_pad_autocal_dt(struct sdhci_host *host) autocal->pull_down_hs400 = autocal->pull_down_1v8; } +static void tegra_sdhci_parse_default_tap_and_trim(struct sdhci_host *host) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct sdhci_tegra *tegra_host = sdhci_pltfm_priv(pltfm_host); + int err; + + err = device_property_read_u32(host->mmc->parent, "nvidia,default-tap", + &tegra_host->default_tap); + if (err) + tegra_host->default_tap = 0; + + err = device_property_read_u32(host->mmc->parent, "nvidia,default-trim", + &tegra_host->default_trim); + if (err) + tegra_host->default_trim = 0; +} + static void tegra_sdhci_set_clock(struct sdhci_host *host, unsigned int clock) { struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); @@ -881,6 +901,8 @@ static int sdhci_tegra_probe(struct platform_device *pdev) tegra_sdhci_parse_pad_autocal_dt(host); + tegra_sdhci_parse_default_tap_and_trim(host); + tegra_host->power_gpio = devm_gpiod_get_optional(&pdev->dev, "power", GPIOD_OUT_HIGH); if (IS_ERR(tegra_host->power_gpio)) { -- 2.18.0
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