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mci i.MX ESDHC: Switch to clock support 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2012-09-23 17:48:32 +02:00
parent d510df23a0
commit c7cea55e0a
1 changed files with 12 additions and 3 deletions
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15
drivers/mci/imx-esdhc.c
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@ -28,6 +28,8 @@
#include <mci.h>
#include <clock.h>
#include <io.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <asm/mmu.h>
#include <mach/clock.h>
#include <mach/generic.h>
@ -70,6 +72,7 @@ struct fsl_esdhc_host {
u32 no_snoop;
unsigned long cur_clock;
struct device_d *dev;
struct clk *clk;
};
#define to_fsl_esdhc(mci) container_of(mci, struct fsl_esdhc_host, mci)
@ -354,7 +357,7 @@ static void set_sysctl(struct mci_host *mci, u32 clock)
int div, pre_div;
struct fsl_esdhc_host *host = to_fsl_esdhc(mci);
struct fsl_esdhc __iomem *regs = host->regs;
int sdhc_clk = imx_get_mmcclk();
int sdhc_clk = clk_get_rate(host->clk);
u32 clk;
if (clock < mci->f_min)
@ -516,11 +519,16 @@ static int fsl_esdhc_probe(struct device_d *dev)
struct mci_host *mci;
u32 caps;
int ret;
unsigned long rate;
struct esdhc_platform_data *pdata = dev->platform_data;
host = xzalloc(sizeof(*host));
mci = &host->mci;
host->clk = clk_get(dev, NULL);
if (IS_ERR(host->clk))
return PTR_ERR(host->clk);
host->dev = dev;
host->regs = dev_request_mem_region(dev, 0);
@ -553,10 +561,11 @@ static int fsl_esdhc_probe(struct device_d *dev)
host->mci.init = esdhc_init;
host->mci.hw_dev = dev;
host->mci.f_min = imx_get_mmcclk() >> 12;
rate = clk_get_rate(host->clk);
host->mci.f_min = rate >> 12;
if (host->mci.f_min < 200000)
host->mci.f_min = 200000;
host->mci.f_max = imx_get_mmcclk();
host->mci.f_max = rate;
mci_register(&host->mci);