From: Aapo Vienamo Date: Thu, 30 Aug 2018 15:06:21 +0000 (+0300) Subject: mmc: tegra: Parse default trim and tap from dt X-Git-Tag: v5.15~7810^2~86 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=85c0da1751fc1fab6f6cbf5414698a3c68d8330b;p=platform%2Fkernel%2Flinux-starfive.git 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 Acked-by: Thierry Reding Acked-by: Adrian Hunter Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index d0a536f..dd8cb3f 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)) {