diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-14 16:06:58 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-14 16:06:58 -0700 |
commit | 85082fd7cbe3173198aac0eb5e85ab1edcc6352c (patch) | |
tree | edbc09b7945994f78668d218fa02e991c3b3b365 /drivers/mmc/host | |
parent | 666484f0250db2e016948d63b3ef33e202e3b8d0 (diff) | |
parent | 53ffe3b440aa85af6fc4eda09b2d44bcdd312d4d (diff) |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (241 commits)
[ARM] 5171/1: ep93xx: fix compilation of modules using clocks
[ARM] 5133/2: at91sam9g20 defconfig file
[ARM] 5130/4: Support for the at91sam9g20
[ARM] 5160/1: IOP3XX: gpio/gpiolib support
[ARM] at91: Fix NAND FLASH timings for at91sam9x evaluation kits.
[ARM] 5084/1: zylonite: Register AC97 device
[ARM] 5085/2: PXA: Move AC97 over to the new central device declaration model
[ARM] 5120/1: pxa: correct platform driver names for PXA25x and PXA27x UDC drivers
[ARM] 5147/1: pxaficp_ir: drop pxa_gpio_mode calls, as pin setting
[ARM] 5145/1: PXA2xx: provide api to control IrDA pins state
[ARM] 5144/1: pxaficp_ir: cleanup includes
[ARM] pxa: remove pxa_set_cken()
[ARM] pxa: allow clk aliases
[ARM] Feroceon: don't disable BPU on boot
[ARM] Orion: LED support for HP mv2120
[ARM] Orion: add RD88F5181L-FXO support
[ARM] Orion: add RD88F5181L-GE support
[ARM] Orion: add Netgear WNR854T support
[ARM] s3c2410_defconfig: update for current build
[ARM] Acer n30: Minor style and indentation fixes.
...
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r-- | drivers/mmc/host/imxmmc.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c index 95f33e87a99..eed211b2ac7 100644 --- a/drivers/mmc/host/imxmmc.c +++ b/drivers/mmc/host/imxmmc.c @@ -42,6 +42,7 @@ #include <linux/mmc/host.h> #include <linux/mmc/card.h> #include <linux/delay.h> +#include <linux/clk.h> #include <asm/dma.h> #include <asm/io.h> @@ -92,6 +93,8 @@ struct imxmci_host { unsigned char actual_bus_width; int prev_cmd_code; + + struct clk *clk; }; #define IMXMCI_PEND_IRQ_b 0 @@ -841,7 +844,7 @@ static void imxmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) /* The prescaler is 5 for PERCLK2 equal to 96MHz * then 96MHz / 5 = 19.2 MHz */ - clk=imx_get_perclk2(); + clk = clk_get_rate(host->clk); prescaler=(clk+(CLK_RATE*7)/8)/CLK_RATE; switch(prescaler) { case 0: @@ -994,6 +997,13 @@ static int imxmci_probe(struct platform_device *pdev) host->res = r; host->irq = irq; + host->clk = clk_get(&pdev->dev, "perclk2"); + if (IS_ERR(host->clk)) { + ret = PTR_ERR(host->clk); + goto out; + } + clk_enable(host->clk); + imx_gpio_mode(PB8_PF_SD_DAT0); imx_gpio_mode(PB9_PF_SD_DAT1); imx_gpio_mode(PB10_PF_SD_DAT2); @@ -1017,8 +1027,8 @@ static int imxmci_probe(struct platform_device *pdev) host->imask = IMXMCI_INT_MASK_DEFAULT; MMC_INT_MASK = host->imask; - - if(imx_dma_request_by_prio(&host->dma, DRIVER_NAME, DMA_PRIO_LOW)<0){ + host->dma = imx_dma_request_by_prio(DRIVER_NAME, DMA_PRIO_LOW); + if(host->dma < 0) { dev_err(mmc_dev(host->mmc), "imx_dma_request_by_prio failed\n"); ret = -EBUSY; goto out; @@ -1053,6 +1063,10 @@ out: imx_dma_free(host->dma); host->dma_allocated=0; } + if (host->clk) { + clk_disable(host->clk); + clk_put(host->clk); + } } if (mmc) mmc_free_host(mmc); @@ -1082,6 +1096,9 @@ static int imxmci_remove(struct platform_device *pdev) tasklet_kill(&host->tasklet); + clk_disable(host->clk); + clk_put(host->clk); + release_resource(host->res); mmc_free_host(mmc); |