From: Markus Niebel <[email protected]> nor that we have DSR support implement the configuration side for i.MX SDHCI controller
Signed-off-by: Markus Niebel <[email protected]> --- drivers/mmc/host/sdhci-esdhc-imx.c | 15 +++++++++++++++ include/linux/platform_data/mmc-esdhc-imx.h | 4 ++++ 2 files changed, 19 insertions(+) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index ccec0e3..7db39d8 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -942,6 +942,16 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, if (of_property_read_u32(np, "fsl,delay-line", &boarddata->delay_line)) boarddata->delay_line = 0; + if (of_find_property(np, "dsr", NULL)) { + u32 tmp; + + of_property_read_u32(np, "dsr", &tmp); + boarddata->dsr_req = true; + boarddata->dsr = (u16)tmp; + } else { + boarddata->dsr_req = true; + } + return 0; } #else @@ -1119,6 +1129,11 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V; } + if (boarddata->dsr_req) { + host->mmc->dsr_req = 1; + host->mmc->dsr = boarddata->dsr; + } + err = sdhci_add_host(host); if (err) goto disable_clk; diff --git a/include/linux/platform_data/mmc-esdhc-imx.h b/include/linux/platform_data/mmc-esdhc-imx.h index 75f70f6..8b88a40 100644 --- a/include/linux/platform_data/mmc-esdhc-imx.h +++ b/include/linux/platform_data/mmc-esdhc-imx.h @@ -35,6 +35,8 @@ enum cd_types { * @wp_type: type of write_protect method (see wp_types enum above) * @cd_type: type of card_detect method (see cd_types enum above) * @support_vsel: indicate it supports 1.8v switching + * @dsr_req: indicate DSR is requested + * @dsr: requested driver stage setting */ struct esdhc_platform_data { @@ -46,5 +48,7 @@ struct esdhc_platform_data { unsigned int f_max; bool support_vsel; unsigned int delay_line; + bool dsr_req; + u16 dsr; }; #endif /* __ASM_ARCH_IMX_ESDHC_H */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
