diff options
author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-10 10:52:59 +0200 |
---|---|---|
committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-10 10:52:59 +0200 |
commit | b920eb41a8241c54efbbd4f2ed6d074f497b0d9e (patch) | |
tree | 5941091817e932add192f8e58dc88d483322e214 /drivers/mmc/host | |
parent | regulator: Fix build error for mc13783 and mc13892 (diff) | |
parent | Linux 3.4-rc2 (diff) | |
download | linux-b920eb41a8241c54efbbd4f2ed6d074f497b0d9e.tar.xz linux-b920eb41a8241c54efbbd4f2ed6d074f497b0d9e.zip |
Merge tag 'v3.4-rc2' into regulator-drivers
Linux 3.4-rc2 contains some fixes that further patches depend upon.
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r-- | drivers/mmc/host/atmel-mci-regs.h | 1 | ||||
-rw-r--r-- | drivers/mmc/host/atmel-mci.c | 55 | ||||
-rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 181 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci-dove.c | 1 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 6 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci-s3c.c | 159 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci.c | 5 | ||||
-rw-r--r-- | drivers/mmc/host/sh_mmcif.c | 13 |
8 files changed, 250 insertions, 171 deletions
diff --git a/drivers/mmc/host/atmel-mci-regs.h b/drivers/mmc/host/atmel-mci-regs.h index 000b3ad0f5ca..787aba1682bb 100644 --- a/drivers/mmc/host/atmel-mci-regs.h +++ b/drivers/mmc/host/atmel-mci-regs.h @@ -31,6 +31,7 @@ # define ATMCI_MR_PDCFBYTE ( 1 << 13) /* Force Byte Transfer */ # define ATMCI_MR_PDCPADV ( 1 << 14) /* Padding Value */ # define ATMCI_MR_PDCMODE ( 1 << 15) /* PDC-oriented Mode */ +# define ATMCI_MR_CLKODD(x) ((x) << 16) /* LSB of Clock Divider */ #define ATMCI_DTOR 0x0008 /* Data Timeout */ # define ATMCI_DTOCYC(x) ((x) << 0) /* Data Timeout Cycles */ # define ATMCI_DTOMUL(x) ((x) << 4) /* Data Timeout Multiplier */ diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 9819dc09ce08..e94476beca18 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -77,6 +77,7 @@ struct atmel_mci_caps { bool has_cstor_reg; bool has_highspeed; bool has_rwproof; + bool has_odd_clk_div; }; struct atmel_mci_dma { @@ -482,7 +483,14 @@ err: static inline unsigned int atmci_ns_to_clocks(struct atmel_mci *host, unsigned int ns) { - return (ns * (host->bus_hz / 1000000) + 999) / 1000; + /* + * It is easier here to use us instead of ns for the timeout, + * it prevents from overflows during calculation. + */ + unsigned int us = DIV_ROUND_UP(ns, 1000); + + /* Maximum clock frequency is host->bus_hz/2 */ + return us * (DIV_ROUND_UP(host->bus_hz, 2000000)); } static void atmci_set_timeout(struct atmel_mci *host, @@ -1127,16 +1135,27 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) } /* Calculate clock divider */ - clkdiv = DIV_ROUND_UP(host->bus_hz, 2 * clock_min) - 1; - if (clkdiv > 255) { - dev_warn(&mmc->class_dev, - "clock %u too slow; using %lu\n", - clock_min, host->bus_hz / (2 * 256)); - clkdiv = 255; + if (host->caps.has_odd_clk_div) { + clkdiv = DIV_ROUND_UP(host->bus_hz, clock_min) - 2; + if (clkdiv > 511) { + dev_warn(&mmc->class_dev, + "clock %u too slow; using %lu\n", + clock_min, host->bus_hz / (511 + 2)); + clkdiv = 511; + } + host->mode_reg = ATMCI_MR_CLKDIV(clkdiv >> 1) + | ATMCI_MR_CLKODD(clkdiv & 1); + } else { + clkdiv = DIV_ROUND_UP(host->bus_hz, 2 * clock_min) - 1; + if (clkdiv > 255) { + dev_warn(&mmc->class_dev, + "clock %u too slow; using %lu\n", + clock_min, host->bus_hz / (2 * 256)); + clkdiv = 255; + } + host->mode_reg = ATMCI_MR_CLKDIV(clkdiv); } - host->mode_reg = ATMCI_MR_CLKDIV(clkdiv); - /* * WRPROOF and RDPROOF prevent overruns/underruns by * stopping the clock when the FIFO is full/empty. @@ -2007,35 +2026,35 @@ static void __init atmci_get_cap(struct atmel_mci *host) "version: 0x%x\n", version); host->caps.has_dma = 0; - host->caps.has_pdc = 0; + host->caps.has_pdc = 1; host->caps.has_cfg_reg = 0; host->caps.has_cstor_reg = 0; host->caps.has_highspeed = 0; host->caps.has_rwproof = 0; + host->caps.has_odd_clk_div = 0; /* keep only major version number */ switch (version & 0xf00) { - case 0x100: - case 0x200: - host->caps.has_pdc = 1; - host->caps.has_rwproof = 1; - break; - case 0x300: - case 0x400: case 0x500: + host->caps.has_odd_clk_div = 1; + case 0x400: + case 0x300: #ifdef CONFIG_AT_HDMAC host->caps.has_dma = 1; #else - host->caps.has_dma = 0; dev_info(&host->pdev->dev, "has dma capability but dma engine is not selected, then use pio\n"); #endif + host->caps.has_pdc = 0; host->caps.has_cfg_reg = 1; host->caps.has_cstor_reg = 1; host->caps.has_highspeed = 1; + case 0x200: host->caps.has_rwproof = 1; + case 0x100: break; default: + host->caps.has_pdc = 0; dev_warn(&host->pdev->dev, "Unmanaged mci version, set minimum capabilities\n"); break; diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 47adb161d3ad..5c2b1c10af9c 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1785,7 +1785,7 @@ static inline struct omap_mmc_platform_data } #endif -static int __init omap_hsmmc_probe(struct platform_device *pdev) +static int __devinit omap_hsmmc_probe(struct platform_device *pdev) { struct omap_mmc_platform_data *pdata = pdev->dev.platform_data; struct mmc_host *mmc; @@ -1818,8 +1818,6 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) if (res == NULL || irq < 0) return -ENXIO; - res->start += pdata->reg_offset; - res->end += pdata->reg_offset; res = request_mem_region(res->start, resource_size(res), pdev->name); if (res == NULL) return -EBUSY; @@ -1843,7 +1841,7 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) host->dma_ch = -1; host->irq = irq; host->slot_id = 0; - host->mapbase = res->start; + host->mapbase = res->start + pdata->reg_offset; host->base = ioremap(host->mapbase, SZ_4K); host->power_mode = MMC_POWER_OFF; host->next_data.cookie = 1; @@ -1875,8 +1873,6 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) goto err1; } - omap_hsmmc_context_save(host); - if (host->pdata->controller_flags & OMAP_HSMMC_BROKEN_MULTIBLOCK_READ) { dev_info(&pdev->dev, "multiblock reads disabled due to 35xx erratum 2.1.1.128; MMC read performance may suffer\n"); mmc->caps2 |= MMC_CAP2_NO_MULTI_READ; @@ -1887,6 +1883,8 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) pm_runtime_set_autosuspend_delay(host->dev, MMC_AUTOSUSPEND_DELAY); pm_runtime_use_autosuspend(host->dev); + omap_hsmmc_context_save(host); + if (cpu_is_omap2430()) { host->dbclk = clk_get(&pdev->dev, "mmchsdb_fck"); /* @@ -2018,8 +2016,7 @@ err_reg: err_irq_cd_init: free_irq(host->irq, host); err_irq: - pm_runtime_mark_last_busy(host->dev); - pm_runtime_put_autosuspend(host->dev); + pm_runtime_put_sync(host->dev); pm_runtime_disable(host->dev); clk_put(host->fclk); if (host->got_dbclk) { @@ -2037,35 +2034,33 @@ err: return ret; } -static int omap_hsmmc_remove(struct platform_device *pdev) +static int __devexit omap_hsmmc_remove(struct platform_device *pdev) { struct omap_hsmmc_host *host = platform_get_drvdata(pdev); struct resource *res; - if (host) { - pm_runtime_get_sync(host->dev); - mmc_remove_host(host->mmc); - if (host->use_reg) - omap_hsmmc_reg_put(host); - if (host->pdata->cleanup) - host->pdata->cleanup(&pdev->dev); - free_irq(host->irq, host); - if (mmc_slot(host).card_detect_irq) - free_irq(mmc_slot(host).card_detect_irq, host); - - pm_runtime_put_sync(host->dev); - pm_runtime_disable(host->dev); - clk_put(host->fclk); - if (host->got_dbclk) { - clk_disable(host->dbclk); - clk_put(host->dbclk); - } + pm_runtime_get_sync(host->dev); + mmc_remove_host(host->mmc); + if (host->use_reg) + omap_hsmmc_reg_put(host); + if (host->pdata->cleanup) + host->pdata->cleanup(&pdev->dev); + free_irq(host->irq, host); + if (mmc_slot(host).card_detect_irq) + free_irq(mmc_slot(host).card_detect_irq, host); - mmc_free_host(host->mmc); - iounmap(host->base); - omap_hsmmc_gpio_free(pdev->dev.platform_data); + pm_runtime_put_sync(host->dev); + pm_runtime_disable(host->dev); + clk_put(host->fclk); + if (host->got_dbclk) { + clk_disable(host->dbclk); + clk_put(host->dbclk); } + mmc_free_host(host->mmc); + iounmap(host->base); + omap_hsmmc_gpio_free(pdev->dev.platform_data); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res) release_mem_region(res->start, resource_size(res)); @@ -2078,49 +2073,45 @@ static int omap_hsmmc_remove(struct platform_device *pdev) static int omap_hsmmc_suspend(struct device *dev) { int ret = 0; - struct platform_device *pdev = to_platform_device(dev); - struct omap_hsmmc_host *host = platform_get_drvdata(pdev); + struct omap_hsmmc_host *host = dev_get_drvdata(dev); - if (host && host->suspended) + if (!host) return 0; - if (host) { - pm_runtime_get_sync(host->dev); - host->suspended = 1; - if (host->pdata->suspend) { - ret = host->pdata->suspend(&pdev->dev, - host->slot_id); - if (ret) { - dev_dbg(mmc_dev(host->mmc), - "Unable to handle MMC board" - " level suspend\n"); - host->suspended = 0; - return ret; - } - } - ret = mmc_suspend_host(host->mmc); + if (host && host->suspended) + return 0; + pm_runtime_get_sync(host->dev); + host->suspended = 1; + if (host->pdata->suspend) { + ret = host->pdata->suspend(dev, host->slot_id); if (ret) { + dev_dbg(dev, "Unable to handle MMC board" + " level suspend\n"); host->suspended = 0; - if (host->pdata->resume) { - ret = host->pdata->resume(&pdev->dev, - host->slot_id); - if (ret) - dev_dbg(mmc_dev(host->mmc), - "Unmask interrupt failed\n"); - } - goto err; + return ret; } + } + ret = mmc_suspend_host(host->mmc); - if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) { - omap_hsmmc_disable_irq(host); - OMAP_HSMMC_WRITE(host->base, HCTL, - OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP); + if (ret) { + host->suspended = 0; + if (host->pdata->resume) { + ret = host->pdata->resume(dev, host->slot_id); + if (ret) + dev_dbg(dev, "Unmask interrupt failed\n"); } - if (host->got_dbclk) - clk_disable(host->dbclk); + goto err; + } + if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) { + omap_hsmmc_disable_irq(host); + OMAP_HSMMC_WRITE(host->base, HCTL, + OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP); } + + if (host->got_dbclk) + clk_disable(host->dbclk); err: pm_runtime_put_sync(host->dev); return ret; @@ -2130,38 +2121,37 @@ err: static int omap_hsmmc_resume(struct device *dev) { int ret = 0; - struct platform_device *pdev = to_platform_device(dev); - struct omap_hsmmc_host *host = platform_get_drvdata(pdev); + struct omap_hsmmc_host *host = dev_get_drvdata(dev); + + if (!host) + return 0; if (host && !host->suspended) return 0; - if (host) { - pm_runtime_get_sync(host->dev); + pm_runtime_get_sync(host->dev); - if (host->got_dbclk) - clk_enable(host->dbclk); + if (host->got_dbclk) + clk_enable(host->dbclk); - if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) - omap_hsmmc_conf_bus_power(host); + if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) + omap_hsmmc_conf_bus_power(host); - if (host->pdata->resume) { - ret = host->pdata->resume(&pdev->dev, host->slot_id); - if (ret) - dev_dbg(mmc_dev(host->mmc), - "Unmask interrupt failed\n"); - } + if (host->pdata->resume) { + ret = host->pdata->resume(dev, host->slot_id); + if (ret) + dev_dbg(dev, "Unmask interrupt failed\n"); + } - omap_hsmmc_protect_card(host); + omap_hsmmc_protect_card(host); - /* Notify the core to resume the host */ - ret = mmc_resume_host(host->mmc); - if (ret == 0) - host->suspended = 0; + /* Notify the core to resume the host */ + ret = mmc_resume_host(host->mmc); + if (ret == 0) + host->suspended = 0; - pm_runtime_mark_last_busy(host->dev); - pm_runtime_put_autosuspend(host->dev); - } + pm_runtime_mark_last_busy(host->dev); + pm_runtime_put_autosuspend(host->dev); return ret; @@ -2178,7 +2168,7 @@ static int omap_hsmmc_runtime_suspend(struct device *dev) host = platform_get_drvdata(to_platform_device(dev)); omap_hsmmc_context_save(host); - dev_dbg(mmc_dev(host->mmc), "disabled\n"); + dev_dbg(dev, "disabled\n"); return 0; } @@ -2189,7 +2179,7 @@ static int omap_hsmmc_runtime_resume(struct device *dev) host = platform_get_drvdata(to_platform_device(dev)); omap_hsmmc_context_restore(host); - dev_dbg(mmc_dev(host->mmc), "enabled\n"); + dev_dbg(dev, "enabled\n"); return 0; } @@ -2202,7 +2192,8 @@ static struct dev_pm_ops omap_hsmmc_dev_pm_ops = { }; static struct platform_driver omap_hsmmc_driver = { - .remove = omap_hsmmc_remove, + .probe = omap_hsmmc_probe, + .remove = __devexit_p(omap_hsmmc_remove), .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, @@ -2211,21 +2202,7 @@ static struct platform_driver omap_hsmmc_driver = { }, }; -static int __init omap_hsmmc_init(void) -{ - /* Register the MMC driver */ - return platform_driver_probe(&omap_hsmmc_driver, omap_hsmmc_probe); -} - -static void __exit omap_hsmmc_cleanup(void) -{ - /* Unregister MMC driver */ - platform_driver_unregister(&omap_hsmmc_driver); -} - -module_init(omap_hsmmc_init); -module_exit(omap_hsmmc_cleanup); - +module_platform_driver(omap_hsmmc_driver); MODULE_DESCRIPTION("OMAP High Speed Multimedia Card driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c index 46fd1fd1b605..177f697b5835 100644 --- a/drivers/mmc/host/sdhci-dove.c +++ b/drivers/mmc/host/sdhci-dove.c @@ -20,6 +20,7 @@ */ #include <linux/io.h> +#include <linux/module.h> #include <linux/mmc/host.h> #include "sdhci-pltfm.h" diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index fbbebe251e01..69ef0beae104 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -1418,8 +1418,6 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, slots = chip->num_slots; /* Quirk may have changed this */ - pci_enable_msi(pdev); - for (i = 0; i < slots; i++) { slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i); if (IS_ERR(slot)) { @@ -1438,8 +1436,6 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, return 0; free: - pci_disable_msi(pdev); - pci_set_drvdata(pdev, NULL); kfree(chip); @@ -1462,8 +1458,6 @@ static void __devexit sdhci_pci_remove(struct pci_dev *pdev) for (i = 0; i < chip->num_slots; i++) sdhci_pci_remove_slot(chip->slots[i]); - pci_disable_msi(pdev); - pci_set_drvdata(pdev, NULL); kfree(chip); } diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index b19e7d435f8d..55a164fcaa15 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -20,6 +20,10 @@ #include <linux/io.h> #include <linux/gpio.h> #include <linux/module.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/pm.h> +#include <linux/pm_runtime.h> #include <linux/mmc/host.h> @@ -53,6 +57,18 @@ struct sdhci_s3c { struct clk *clk_bus[MAX_BUS_CLK]; }; +/** + * struct sdhci_s3c_driver_data - S3C SDHCI platform specific driver data + * @sdhci_quirks: sdhci host specific quirks. + * + * Specifies platform specific configuration of sdhci controller. + * Note: A structure for driver specific platform data is used for future + * expansion of its usage. + */ +struct sdhci_s3c_drv_data { + unsigned int sdhci_quirks; +}; + static inline struct sdhci_s3c *to_s3c(struct sdhci_host *host) { return sdhci_priv(host); @@ -132,10 +148,10 @@ static unsigned int sdhci_s3c_consider_clock(struct sdhci_s3c *ourhost, return UINT_MAX; /* - * Clock divider's step is different as 1 from that of host controller - * when 'clk_type' is S3C_SDHCI_CLK_DIV_EXTERNAL. + * If controller uses a non-standard clock division, find the best clock + * speed possible with selected clock source and skip the division. */ - if (ourhost->pdata->clk_type) { + if (ourhost->host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) { rate = clk_round_rate(clksrc, wanted); return wanted - rate; } @@ -272,6 +288,8 @@ static unsigned int sdhci_cmu_get_min_clock(struct sdhci_host *host) static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock) { struct sdhci_s3c *ourhost = to_s3c(host); + unsigned long timeout; + u16 clk = 0; /* don't bother if the clock is going off */ if (clock == 0) @@ -282,6 +300,25 @@ static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock) clk_set_rate(ourhost->clk_bus[ourhost->cur_clk], clock); host->clock = clock; + + clk = SDHCI_CLOCK_INT_EN; + sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); + + /* Wait max 20 ms */ + timeout = 20; + while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL)) + & SDHCI_CLOCK_INT_STABLE)) { + if (timeout == 0) { + printk(KERN_ERR "%s: Internal clock never " + "stabilised.\n", mmc_hostname(host->mmc)); + return; + } + timeout--; + mdelay(1); + } + + clk |= SDHCI_CLOCK_CARD_EN; + sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); } /** @@ -382,16 +419,24 @@ static void sdhci_s3c_setup_card_detect_gpio(struct sdhci_s3c *sc) } } +static inline struct sdhci_s3c_drv_data *sdhci_s3c_get_driver_data( + struct platform_device *pdev) +{ + return (struct sdhci_s3c_drv_data *) + platform_get_device_id(pdev)->driver_data; +} + static int __devinit sdhci_s3c_probe(struct platform_device *pdev) { - struct s3c_sdhci_platdata *pdata = pdev->dev.platform_data; + struct s3c_sdhci_platdata *pdata; + struct sdhci_s3c_drv_data *drv_data; struct device *dev = &pdev->dev; struct sdhci_host *host; struct sdhci_s3c *sc; struct resource *res; int ret, irq, ptr, clks; - if (!pdata) { + if (!pdev->dev.platform_data) { dev_err(dev, "no device data specified\n"); return -ENOENT; } @@ -402,18 +447,20 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) return irq; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "no memory specified\n"); - return -ENOENT; - } - host = sdhci_alloc_host(dev, sizeof(struct sdhci_s3c)); if (IS_ERR(host)) { dev_err(dev, "sdhci_alloc_host() failed\n"); return PTR_ERR(host); } + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + ret = -ENOMEM; + goto err_io_clk; + } + memcpy(pdata, pdev->dev.platform_data, sizeof(*pdata)); + + drv_data = sdhci_s3c_get_driver_data(pdev); sc = sdhci_priv(host); sc->host = host; @@ -464,15 +511,8 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) goto err_no_busclks; } - sc->ioarea = request_mem_region(res->start, resource_size(res), - mmc_hostname(host->mmc)); - if (!sc->ioarea) { - dev_err(dev, "failed to reserve register area\n"); - ret = -ENXIO; - goto err_req_regs; - } - - host->ioaddr = ioremap_nocache(res->start, resource_size(res)); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + host->ioaddr = devm_request_and_ioremap(&pdev->dev, res); if (!host->ioaddr) { dev_err(dev, "failed to map registers\n"); ret = -ENXIO; @@ -491,6 +531,8 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) /* Setup quirks for the controller */ host->quirks |= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC; host->quirks |= SDHCI_QUIRK_NO_HISPD_BIT; + if (drv_data) + host->quirks |= drv_data->sdhci_quirks; #ifndef CONFIG_MMC_SDHCI_S3C_DMA @@ -518,6 +560,14 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) if (pdata->cd_type == S3C_SDHCI_CD_PERMANENT) host->mmc->caps = MMC_CAP_NONREMOVABLE; + switch (pdata->max_width) { + case 8: + host->mmc->caps |= MMC_CAP_8_BIT_DATA; + case 4: + host->mmc->caps |= MMC_CAP_4_BIT_DATA; + break; + } + if (pdata->pm_caps) host->mmc->pm_caps |= pdata->pm_caps; @@ -531,7 +581,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) * If controller does not have internal clock divider, * we can use overriding functions instead of default. */ - if (pdata->clk_type) { + if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) { sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock; sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock; sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock; @@ -544,10 +594,17 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) if (pdata->host_caps2) host->mmc->caps2 |= pdata->host_caps2; + pm_runtime_enable(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, 50); + pm_runtime_use_autosuspend(&pdev->dev); + pm_suspend_ignore_children(&pdev->dev, 1); + ret = sdhci_add_host(host); if (ret) { dev_err(dev, "sdhci_add_host() failed\n"); - goto err_add_host; + pm_runtime_forbid(&pdev->dev); + pm_runtime_get_noresume(&pdev->dev); + goto err_req_regs; } /* The following two methods of card detection might call @@ -561,10 +618,6 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) return 0; - err_add_host: - release_resource(sc->ioarea); - kfree(sc->ioarea); - err_req_regs: for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) { if (sc->clk_bus[ptr]) { @@ -601,6 +654,8 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) sdhci_remove_host(host, 1); + pm_runtime_disable(&pdev->dev); + for (ptr = 0; ptr < 3; ptr++) { if (sc->clk_bus[ptr]) { clk_disable(sc->clk_bus[ptr]); @@ -610,18 +665,13 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) clk_disable(sc->clk_io); clk_put(sc->clk_io); - iounmap(host->ioaddr); - release_resource(sc->ioarea); - kfree(sc->ioarea); - sdhci_free_host(host); platform_set_drvdata(pdev, NULL); return 0; } -#ifdef CONFIG_PM - +#ifdef CONFIG_PM_SLEEP static int sdhci_s3c_suspend(struct device *dev) { struct sdhci_host *host = dev_get_drvdata(dev); @@ -635,10 +685,29 @@ static int sdhci_s3c_resume(struct device *dev) return sdhci_resume_host(host); } +#endif + +#ifdef CONFIG_PM_RUNTIME +static int sdhci_s3c_runtime_suspend(struct device *dev) +{ + struct sdhci_host *host = dev_get_drvdata(dev); + + return sdhci_runtime_suspend_host(host); +} +static int sdhci_s3c_runtime_resume(struct device *dev) +{ + struct sdhci_host *host = dev_get_drvdata(dev); + + return sdhci_runtime_resume_host(host); +} +#endif + +#ifdef CONFIG_PM static const struct dev_pm_ops sdhci_s3c_pmops = { - .suspend = sdhci_s3c_suspend, - .resume = sdhci_s3c_resume, + SET_SYSTEM_SLEEP_PM_OPS(sdhci_s3c_suspend, sdhci_s3c_resume) + SET_RUNTIME_PM_OPS(sdhci_s3c_runtime_suspend, sdhci_s3c_runtime_resume, + NULL) }; #define SDHCI_S3C_PMOPS (&sdhci_s3c_pmops) @@ -647,9 +716,31 @@ static const struct dev_pm_ops sdhci_s3c_pmops = { #define SDHCI_S3C_PMOPS NULL #endif +#if defined(CONFIG_CPU_EXYNOS4210) || defined(CONFIG_SOC_EXYNOS4212) +static struct sdhci_s3c_drv_data exynos4_sdhci_drv_data = { + .sdhci_quirks = SDHCI_QUIRK_NONSTANDARD_CLOCK, +}; +#define EXYNOS4_SDHCI_DRV_DATA ((kernel_ulong_t)&exynos4_sdhci_drv_data) +#else +#define EXYNOS4_SDHCI_DRV_DATA ((kernel_ulong_t)NULL) +#endif + +static struct platform_device_id sdhci_s3c_driver_ids[] = { + { + .name = "s3c-sdhci", + .driver_data = (kernel_ulong_t)NULL, + }, { + .name = "exynos4-sdhci", + .driver_data = EXYNOS4_SDHCI_DRV_DATA, + }, + { } +}; +MODULE_DEVICE_TABLE(platform, sdhci_s3c_driver_ids); + static struct platform_driver sdhci_s3c_driver = { .probe = sdhci_s3c_probe, .remove = __devexit_p(sdhci_s3c_remove), + .id_table = sdhci_s3c_driver_ids, .driver = { .owner = THIS_MODULE, .name = "s3c-sdhci", diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 8262cadfdab7..9aa77f3f04a8 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2782,8 +2782,9 @@ int sdhci_add_host(struct sdhci_host *host) mmc_card_is_removable(mmc)) mmc->caps |= MMC_CAP_NEEDS_POLL; - /* UHS-I mode(s) supported by the host controller. */ - if (host->version >= SDHCI_SPEC_300) + /* Any UHS-I mode in caps implies SDR12 and SDR25 support. */ + if (caps[1] & (SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | + SDHCI_SUPPORT_DDR50)) mmc->caps |= MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25; /* SDR104 supports also implies SDR50 support */ diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index aafaf0b6eb1c..724b35e85a26 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -454,7 +454,8 @@ static void sh_mmcif_clock_control(struct sh_mmcif_host *host, unsigned int clk) sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_SUP_PCLK); else sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_CLEAR & - ((fls(host->clk / clk) - 1) << 16)); + ((fls(DIV_ROUND_UP(host->clk, + clk) - 1) - 1) << 16)); sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_ENABLE); } @@ -1297,14 +1298,8 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev) spin_lock_init(&host->lock); mmc->ops = &sh_mmcif_ops; - mmc->f_max = host->clk; - /* close to 400KHz */ - if (mmc->f_max < 51200000) - mmc->f_min = mmc->f_max / 128; - else if (mmc->f_max < 102400000) - mmc->f_min = mmc->f_max / 256; - else - mmc->f_min = mmc->f_max / 512; + mmc->f_max = host->clk / 2; + mmc->f_min = host->clk / 512; if (pd->ocr) mmc->ocr_avail = pd->ocr; mmc->caps = MMC_CAP_MMC_HIGHSPEED; |