Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d8cb70d10a2d4e6b083b89044a68d860d0bf1eec Commit: d8cb70d10a2d4e6b083b89044a68d860d0bf1eec Parent: 5984a2fc7e7c9ab118e78ae9799e98fc4ade40f9 Author: Russell King <[EMAIL PROTECTED]> AuthorDate: Fri Oct 26 17:56:40 2007 +0100 Committer: Russell King <[EMAIL PROTECTED]> CommitDate: Wed Oct 31 15:21:39 2007 +0000
[ARM] Fix pxamci regression Fix: WARNING: at arch/arm/mach-pxa/clock.c:69 clk_disable() [<c002d7c8>] (dump_stack+0x0/0x14) from [<c00334f4>] (clk_disable+0x34/0xa0) [<c00334c0>] (clk_disable+0x0/0xa0) from [<c028a43c>] (pxamci_set_ios+0x74/0xf0) [<c028a3c8>] (pxamci_set_ios+0x0/0xf0) from [<c0281548>] (mmc_power_off+0x90/0x9c) [<c02814b8>] (mmc_power_off+0x0/0x9c) from [<c0281a30>] (mmc_start_host+0x18/0x28) [<c0281a18>] (mmc_start_host+0x0/0x28) from [<c02825a0>] (mmc_add_host+0xe8/0x104) [<c02824b8>] (mmc_add_host+0x0/0x104) from [<c028a7d0>] (pxamci_probe+0x24c/0x2f4) [<c028a584>] (pxamci_probe+0x0/0x2f4) from [<c01e5948>] (platform_drv_probe+0x20/0x24) ... Signed-off-by: Russell King <[EMAIL PROTECTED]> --- drivers/mmc/host/pxamci.c | 11 +++++++++-- 1 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index a25ee71..1654a33 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -39,6 +39,7 @@ #define DRIVER_NAME "pxa2xx-mci" #define NR_SG 1 +#define CLKRT_OFF (~0) struct pxamci_host { struct mmc_host *mmc; @@ -371,6 +372,9 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) unsigned long rate = host->clkrate; unsigned int clk = rate / ios->clock; + if (host->clkrt == CLKRT_OFF) + clk_enable(host->clk); + /* * clk might result in a lower divisor than we * desire. check for that condition and adjust @@ -379,14 +383,16 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) if (rate / clk > ios->clock) clk <<= 1; host->clkrt = fls(clk) - 1; - clk_enable(host->clk); /* * we write clkrt on the next command */ } else { pxamci_stop_clock(host); - clk_disable(host->clk); + if (host->clkrt != CLKRT_OFF) { + host->clkrt = CLKRT_OFF; + clk_disable(host->clk); + } } if (host->power_mode != ios->power_mode) { @@ -498,6 +504,7 @@ static int pxamci_probe(struct platform_device *pdev) host->mmc = mmc; host->dma = -1; host->pdata = pdev->dev.platform_data; + host->clkrt = CLKRT_OFF; host->clk = clk_get(&pdev->dev, "MMCCLK"); if (IS_ERR(host->clk)) { - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html