From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Mack Subject: [PATCH 4/4] MMC: omap_hsmmc: add DT property for max bus frequency Date: Fri, 12 Oct 2012 12:58:15 +0200 Message-ID: <1350039495-360-5-git-send-email-zonque@gmail.com> References: <1350039495-360-1-git-send-email-zonque@gmail.com> Return-path: In-Reply-To: <1350039495-360-1-git-send-email-zonque@gmail.com> Sender: linux-omap-owner@vger.kernel.org To: linux-mmc@vger.kernel.org Cc: Daniel Mack , Venkatraman S , Chris Ball , Grant Likely , Rob Herring , linux-omap@vger.kernel.org List-Id: linux-mmc@vger.kernel.org Maximum bus frequency can be limited by external circuitry like level shifters etc. Allow passing this value from DT. Signed-off-by: Daniel Mack Cc: Venkatraman S Cc: Chris Ball Cc: Grant Likely Cc: Rob Herring Cc: linux-omap@vger.kernel.org --- drivers/mmc/host/omap_hsmmc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 86f0759..4650ef7 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1676,7 +1676,7 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev) { struct omap_mmc_platform_data *pdata; struct device_node *np = dev->of_node; - u32 bus_width; + u32 bus_width, max_freq; pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) @@ -1703,6 +1703,9 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev) if (of_find_property(np, "ti,needs-special-reset", NULL)) pdata->slots[0].features |= HSMMC_HAS_UPDATED_RESET; + if (!of_property_read_u32(np, "max-frequency", &max_freq)) + pdata->max_freq = max_freq; + return pdata; } #else -- 1.7.11.4