On Tue, Sep 08, 2009 at 03:51:26PM +0900, [email protected] wrote: > From: Thomas Abraham <[email protected]> > > This patch sets the parent clock, source clock and sdhci module > clock speed for 6410 sdhci controller.
The driver should really be presented with a correct list of sources for mmc_bus in the platform data (ok, the last post was incorrect as I forgot the mux on mmc_bus as well as the mux in the driver block). Any static setup of mmc_bus can be done in the machine setup code, otherwise please look at how the choices for the SDHCI mux is presented. > Signed-off-by: Thomas Abraham <[email protected]> > --- > drivers/mmc/host/sdhci-s3c.c | 13 +++++++++++++ > 1 files changed, 13 insertions(+), 0 deletions(-) > > diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c > index 50997d2..db1bb93 100644 > --- a/drivers/mmc/host/sdhci-s3c.c > +++ b/drivers/mmc/host/sdhci-s3c.c > @@ -22,6 +22,8 @@ > > #include <plat/sdhci.h> > #include <plat/regs-sdhci.h> > +#include <plat/clock.h> > +#include <plat/cpu.h> > > #include "sdhci.h" > > @@ -221,6 +223,7 @@ static int __devinit sdhci_s3c_probe(struct > platform_device *pdev) > struct sdhci_host *host; > struct sdhci_s3c *sc; > struct resource *res; > + struct clk *clk_mmc, *clk_parent; > int ret, irq, ptr, clks; > > if (!pdata) { > @@ -240,6 +243,16 @@ static int __devinit sdhci_s3c_probe(struct > platform_device *pdev) > return -ENOENT; > } > > + /* Set the SDHCI controller clock rate */ > + clk_mmc = clk_get(dev, pdata->clk_source_name); > + clk_parent = clk_get(dev, pdata->clk_parent_name); > + if (!clk_mmc || !clk_parent) { > + dev_err(dev, "could not obtain clock information"); > + return -ENXIO; > + } > + clk_set_parent(clk_mmc, clk_parent); > + clk_set_rate(clk_mmc, pdata->clk_speed); > + > host = sdhci_alloc_host(dev, sizeof(struct sdhci_s3c)); > if (IS_ERR(host)) { > dev_err(dev, "sdhci_alloc_host() failed\n"); > -- > 1.5.3.4 > > > _______________________________________________ > linux-arm-kernel mailing list > [email protected] > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- -- Ben Q: What's a light-year? A: One-third less calories than a regular year. -- 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
