Jaehoon Chung <jh80.chung@xxxxxxxxxxx> wrote:
> On 03/02/2012 11:15 AM, Seungwon Jeon wrote:
>
> > Jaehoon Chung <jh80.chung@xxxxxxxxxxx> wrote:
> >> On 02/29/2012 03:33 PM, Seungwon Jeon wrote:
> >>
> >>> Hi Jaehoon,
> >>>
> >>> Thank you for the patch.
> >>> Could you check comments below?
> >>>
> >>> Jaehoon Chung <jh80.chung@xxxxxxxxxxx> wrote:
> >>>> This patch is change to use the sdhci-pltfm.c
> >>>>
> >>>> Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
> >>>> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> >>>> ---
> >>>> drivers/mmc/host/Kconfig | 20 ++--
> >>>> drivers/mmc/host/sdhci-s3c.c | 254 ++++++++++++++----------------------------
> >>>> 2 files changed, 95 insertions(+), 179 deletions(-)
> >>>>
> >>>> diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> >>>> index 0c9b3b1..21ea0ba 100644
> >>>> --- a/drivers/mmc/host/Kconfig
> >>>> +++ b/drivers/mmc/host/Kconfig
> >>>> @@ -169,6 +169,8 @@ config MMC_SDHCI_TEGRA
> >>>> config MMC_SDHCI_S3C
> >>>> tristate "SDHCI support on Samsung S3C SoC"
> >>>> depends on MMC_SDHCI && PLAT_SAMSUNG
> >>>> + depends on MMC_SDHCI_PLTFM
> >>>> + select MMC_SDHCI_IO_ACCESSORS
> >>>> help
> >>>> This selects the Secure Digital Host Controller Interface (SDHCI)
> >>>> often referrered to as the HSMMC block in some of the Samsung S3C
> >>>> @@ -181,6 +183,14 @@ config MMC_SDHCI_S3C
> >>>>
> >>>> If unsure, say N.
> >>>>
> >>>> +config MMC_SDHCI_S3C_DMA
> >>>> + bool "DMA support on S3C SDHCI"
> >>>> + depends on MMC_SDHCI_S3C && EXPERIMENTAL
> >>>> + help
> >>>> + Enable DMA support on the Samsung S3C SDHCI glue. The DMA
> >>>> + has proved to be problematic if the controller encounters
> >>>> + certain errors, and thus should be treated with care.
> >>>> +
> >>>> config MMC_SDHCI_PXAV3
> >>>> tristate "Marvell MMP2 SD Host Controller support (PXAV3)"
> >>>> depends on CLKDEV_LOOKUP
> >>>> @@ -219,16 +229,6 @@ config MMC_SDHCI_SPEAR
> >>>>
> >>>> If unsure, say N.
> >>>>
> >>>> -config MMC_SDHCI_S3C_DMA
> >>>> - bool "DMA support on S3C SDHCI"
> >>>> - depends on MMC_SDHCI_S3C && EXPERIMENTAL
> >>>> - help
> >>>> - Enable DMA support on the Samsung S3C SDHCI glue. The DMA
> >>>> - has proved to be problematic if the controller encounters
> >>>> - certain errors, and thus should be treated with care.
> >>>> -
> >>>> - YMMV.
> >>>> -
> >>>> config MMC_OMAP
> >>>> tristate "TI OMAP Multimedia Card Interface support"
> >>>> depends on ARCH_OMAP
> >>>> diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
> >>>> index 3bf509b..0778c38 100644
> >>>> --- a/drivers/mmc/host/sdhci-s3c.c
> >>>> +++ b/drivers/mmc/host/sdhci-s3c.c
> >>>> @@ -28,6 +28,7 @@
> >>>> #include <plat/sdhci.h>
> >>>> #include <plat/regs-sdhci.h>
> >>>>
> >>>> +#include "sdhci-pltfm.h"
> >>>> #include "sdhci.h"
> >>>>
> >>>> #define MAX_BUS_CLK (4)
> >>>> @@ -46,9 +47,7 @@
> >>>> * @clk_bus: The clocks that are available for the SD/MMC bus clock.
> >>>> */
> >>>> struct sdhci_s3c {
> >>>> - struct sdhci_host *host;
> >>>> struct platform_device *pdev;
> >>>> - struct resource *ioarea;
> >>>> struct s3c_sdhci_platdata *pdata;
> >>>> unsigned int cur_clk;
> >>>> int ext_cd_irq;
> >>>> @@ -71,11 +70,6 @@ struct sdhci_s3c_drv_data {
> >>>> unsigned int sdhci_quirks;
> >>>> };
> >>>>
> >>>> -static inline struct sdhci_s3c *to_s3c(struct sdhci_host *host)
> >>>> -{
> >>>> - return sdhci_priv(host);
> >>>> -}
> >>>> -
> >>>> /**
> >>>> * get_curclk - convert ctrl2 register to clock source number
> >>>> * @ctrl2: Control2 register value.
> >>>> @@ -90,7 +84,8 @@ static u32 get_curclk(u32 ctrl2)
> >>>>
> >>>> static void sdhci_s3c_check_sclk(struct sdhci_host *host)
> >>>> {
> >>>> - struct sdhci_s3c *ourhost = to_s3c(host);
> >>>> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> >>>> + struct sdhci_s3c *ourhost = pltfm_host->priv;
> >>>> u32 tmp = readl(host->ioaddr + S3C_SDHCI_CONTROL2);
> >>>>
> >>>> if (get_curclk(tmp) != ourhost->cur_clk) {
> >>>> @@ -110,7 +105,8 @@ static void sdhci_s3c_check_sclk(struct sdhci_host *host)
> >>>> */
> >>>> static unsigned int sdhci_s3c_get_max_clk(struct sdhci_host *host)
> >>>> {
> >>>> - struct sdhci_s3c *ourhost = to_s3c(host);
> >>>> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> >>>> + struct sdhci_s3c *ourhost = pltfm_host->priv;
> >>>> struct clk *busclk;
> >>>> unsigned int rate, max;
> >>>> int clk;
> >>>> @@ -138,11 +134,13 @@ static unsigned int sdhci_s3c_get_max_clk(struct sdhci_host *host)
> >>>> * @src: The source clock index.
> >>>> * @wanted: The clock frequency wanted.
> >>>> */
> >>>> -static unsigned int sdhci_s3c_consider_clock(struct sdhci_s3c *ourhost,
> >>>> +static unsigned int sdhci_s3c_consider_clock(struct sdhci_host *host,
> >>>> unsigned int src,
> >>>> unsigned int wanted)
> >>>> {
> >>>> unsigned long rate;
> >>>> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> >>>> + struct sdhci_s3c *ourhost = pltfm_host->priv;
> >>>> struct clk *clksrc = ourhost->clk_bus[src];
> >>>> int div;
> >>>>
> >>>> @@ -153,7 +151,7 @@ static unsigned int sdhci_s3c_consider_clock(struct sdhci_s3c *ourhost,
> >>>> * If controller uses a non-standard clock division, find the best clock
> >>>> * speed possible with selected clock source and skip the division.
> >>>> */
> >>>> - if (ourhost->host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) {
> >>>> + if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) {
> >>>> rate = clk_round_rate(clksrc, wanted);
> >>>> return wanted - rate;
> >>>> }
> >>>> @@ -181,7 +179,8 @@ static unsigned int sdhci_s3c_consider_clock(struct sdhci_s3c *ourhost,
> >>>> */
> >>>> static void sdhci_s3c_set_clock(struct sdhci_host *host, unsigned int clock)
> >>>> {
> >>>> - struct sdhci_s3c *ourhost = to_s3c(host);
> >>>> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> >>>> + struct sdhci_s3c *ourhost = pltfm_host->priv;
> >>>> unsigned int best = UINT_MAX;
> >>>> unsigned int delta;
> >>>> int best_src = 0;
> >>>> @@ -193,7 +192,7 @@ static void sdhci_s3c_set_clock(struct sdhci_host *host, unsigned int clock)
> >>>> return;
> >>>>
> >>>> for (src = 0; src < MAX_BUS_CLK; src++) {
> >>>> - delta = sdhci_s3c_consider_clock(ourhost, src, clock);
> >>>> + delta = sdhci_s3c_consider_clock(host, src, clock);
> >>>> if (delta < best) {
> >>>> best = delta;
> >>>> best_src = src;
> >>>> @@ -251,12 +250,11 @@ static void sdhci_s3c_set_clock(struct sdhci_host *host, unsigned int clock)
> >>>> */
> >>>> static unsigned int sdhci_s3c_get_min_clock(struct sdhci_host *host)
> >>>> {
> >>>> - struct sdhci_s3c *ourhost = to_s3c(host);
> >>>> unsigned int delta, min = UINT_MAX;
> >>>> int src;
> >>>>
> >>>> for (src = 0; src < MAX_BUS_CLK; src++) {
> >>>> - delta = sdhci_s3c_consider_clock(ourhost, src, 0);
> >>>> + delta = sdhci_s3c_consider_clock(host, src, 0);
> >>>> if (delta == UINT_MAX)
> >>>> continue;
> >>>> /* delta is a negative value in this case */
> >>>> @@ -269,27 +267,26 @@ static unsigned int sdhci_s3c_get_min_clock(struct sdhci_host *host)
> >>>> /* sdhci_cmu_get_max_clk - callback to get maximum clock frequency.*/
> >>>> static unsigned int sdhci_cmu_get_max_clock(struct sdhci_host *host)
> >>>> {
> >>>> - struct sdhci_s3c *ourhost = to_s3c(host);
> >>>> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> >>>>
> >>>> - return clk_round_rate(ourhost->clk_bus[ourhost->cur_clk], UINT_MAX);
> >>>> + return clk_round_rate(pltfm_host->clk, UINT_MAX);
> >>>> }
> >>>>
> >>>> /* sdhci_cmu_get_min_clock - callback to get minimal supported clock value. */
> >>>> static unsigned int sdhci_cmu_get_min_clock(struct sdhci_host *host)
> >>>> {
> >>>> - struct sdhci_s3c *ourhost = to_s3c(host);
> >>>> -
> >>>> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> >>>> /*
> >>>> * initial clock can be in the frequency range of
> >>>> * 100KHz-400KHz, so we set it as max value.
> >>>> */
> >>>> - return clk_round_rate(ourhost->clk_bus[ourhost->cur_clk], 400000);
> >>>> + return clk_round_rate(pltfm_host->clk, 400000);
> >>>> }
> >>>>
> >>>> /* sdhci_cmu_set_clock - callback on clock change.*/
> >>>> static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock)
> >>>> {
> >>>> - struct sdhci_s3c *ourhost = to_s3c(host);
> >>>> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> >>>> unsigned long timeout;
> >>>> u16 clk = 0;
> >>>>
> >>>> @@ -299,7 +296,7 @@ static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock)
> >>>>
> >>>> sdhci_s3c_set_clock(host, clock);
> >>>>
> >>>> - clk_set_rate(ourhost->clk_bus[ourhost->cur_clk], clock);
> >>>> + clk_set_rate(pltfm_host->clk, clock);
> >>>>
> >>>> host->clock = clock;
> >>>>
> >>>> @@ -426,7 +423,8 @@ static int __devinit sdhci_s3c_parse_dt(struct device *dev,
> >>>> struct sdhci_host *host, struct s3c_sdhci_platdata *pdata)
> >>>> {
> >>>> struct device_node *node = dev->of_node;
> >>>> - struct sdhci_s3c *ourhost = to_s3c(host);
> >>>> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> >>>> + struct sdhci_s3c *ourhost = pltfm_host->priv;
> >>>> u32 max_width;
> >>>> int gpio, cnt, ret;
> >>>>
> >>>> @@ -484,6 +482,7 @@ static int __devinit sdhci_s3c_parse_dt(struct device *dev,
> >>>> dev_err(dev, "invalid gpio[%d]\n", cnt);
> >>>> goto err_free_dt_cd_gpio;
> >>>> }
> >>>> + p
> >>> Typo?
> >>
> >> It's typo. i will remove it.
> >>
> >>>
> >>>> ourhost->gpios[cnt] = gpio;
> >>>> }
> >>>>
> >>>> @@ -529,62 +528,60 @@ static inline struct sdhci_s3c_drv_data *sdhci_s3c_get_driver_data(
> >>>> platform_get_device_id(pdev)->driver_data;
> >>>> }
> >>>>
> >>>> +static struct sdhci_pltfm_data sdhci_s3c_pdata = {
> >>>> + .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
> >>>> + SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_NO_BUSY_IRQ |
> >>>> + SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 |
> >>>> + SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC |
> >>>> + SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
> >>>> + SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_32BIT_DMA_SIZE,
> >>>> + .ops = &sdhci_s3c_ops,
> >>>> +};
> >>>> +
> >>>> static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
> >>>> {
> >>>> - struct s3c_sdhci_platdata *pdata;
> >>>> struct sdhci_s3c_drv_data *drv_data;
> >>>> struct device *dev = &pdev->dev;
> >>>> + struct sdhci_pltfm_host *pltfm_host;
> >>>> + struct sdhci_pltfm_data *pltfm_pdata = &sdhci_s3c_pdata;
> >>>> struct sdhci_host *host;
> >>>> struct sdhci_s3c *sc;
> >>>> - struct resource *res;
> >>>> - int ret, irq, ptr, clks;
> >>>> + int ret, ptr, clks;
> >>>>
> >>>> if (!pdev->dev.platform_data && !pdev->dev.of_node) {
> >>>> dev_err(dev, "no device data specified\n");
> >>>> return -ENOENT;
> >>>> }
> >>>>
> >>>> - irq = platform_get_irq(pdev, 0);
> >>>> - if (irq < 0) {
> >>>> - dev_err(dev, "no irq specified\n");
> >>>> - 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));
> >>>> + host = sdhci_pltfm_init(pdev, pltfm_pdata);
> >>>> if (IS_ERR(host)) {
> >>>> dev_err(dev, "sdhci_alloc_host() failed\n");
> >>>> return PTR_ERR(host);
> >>>> }
> >>>> - sc = sdhci_priv(host);
> >>>>
> >>>> - pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
> >>>> - if (!pdata) {
> >>>> + sc = devm_kzalloc(dev, sizeof(struct sdhci_s3c), GFP_KERNEL);
> >>>> + if (!sc) {
> >>>> ret = -ENOMEM;
> >>>> - goto err_pdata;
> >>>> + goto err_alloc_host;
> >>>> }
> >>>>
> >>>> + pltfm_host = sdhci_priv(host);
> >>>> + pltfm_host->priv = sc;
> >>>> +
> >>>> if (pdev->dev.of_node) {
> >>>> - ret = sdhci_s3c_parse_dt(&pdev->dev, host, pdata);
> >>>> + ret = sdhci_s3c_parse_dt(&pdev->dev, host, sc->pdata);
> >>>> if (ret)
> >>>> - goto err_pdata;
> >>>> + goto err_alloc_host;
> >>>> } else {
> >>>> - memcpy(pdata, pdev->dev.platform_data, sizeof(*pdata));
> >>>> + memcpy(&sc->pdata, &pdev->dev.platform_data, sizeof(sc->pdata));
> >>>> sc->ext_cd_gpio = -1; /* invalid gpio number */
> >>>> }
> >>>>
> >>>> drv_data = sdhci_s3c_get_driver_data(pdev);
> >>>> + if (drv_data)
> >>>> + host->quirks |= drv_data->sdhci_quirks;
> >>>>
> >>>> - sc->host = host;
> >>>> sc->pdev = pdev;
> >>>> - sc->pdata = pdata;
> >>>> -
> >>>> - platform_set_drvdata(pdev, host);
> >>>>
> >>>> sc->clk_io = clk_get(dev, "hsmmc");
> >>>> if (IS_ERR(sc->clk_io)) {
> >>>> @@ -602,9 +599,8 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
> >>>>
> >>>> snprintf(name, 14, "mmc_busclk.%d", ptr);
> >>>> clk = clk_get(dev, name);
> >>>> - if (IS_ERR(clk)) {
> >>>> + if (IS_ERR(clk))
> >>>> continue;
> >>>> - }
> >>>>
> >>>> clks++;
> >>>> sc->clk_bus[ptr] = clk;
> >>>> @@ -613,7 +609,10 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
> >>>> * save current clock index to know which clock bus
> >>>> * is used later in overriding functions.
> >>>> */
> >>>> - sc->cur_clk = ptr;
> >>>> + if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK)
> >>>> + pltfm_host->clk = clk;
> >>>> + else
> >>> We need to keep below?
> >>> According to two commits, this seems to be relevant to SDHCI_QUIRK_NONSTANDARD_CLOCK.
> >>> mmc: sdhci-s3c: Support controllers with no internal clock divider(253e0a7c3dc4b)
> >>> mmc: sdhci-s3c: Remove usage of clk_type member in platform data(b77d777eeb0a086)
> >>
> >> Right, it's related with them.
> >> I want to remove the sc->cur_clk.But in c110 case, it seems to need them.
> >> In c110, clk_src is used the one of four.
> >> If you want to remove the quirks, i will use only sc->cur_clk.
> >> How about this?
> > I mean "sc->cur_clk = ptr" can be removed here.
>
> I think that can remove "sc->cur_clk = ptr" at first time.
> But in sdhci_s3c_set_clock(), it's used for selecting the new clock sources.
> (If my understanding is wrong, i will also check this.)
As we know, ptr indicates the index of clock candidates if not SDHCI_QUIRK_NONSTANDARD_CLOCK.
cur_clk is just updated during loop and finally it will be finished by last ptr.
I wonder if this is a selected index.
Thanks,
Seungwon Jeon.
>
> Best Regards,
> Jaehoon Chung
>
> > And about quirks..., I think compatibility should be considered.
> >
> > Thanks,
> > Seungwon Jeon.
> >>
> >> And any comment?
> >>
> >> Best Regards,
> >> Jaehoon Chung
> >>
> >>>
> >>> Thanks,
> >>> Seungwon Jeon.
> >>>
> >>>> + sc->cur_clk = ptr;
> >>>>
> >>>> clk_enable(clk);
> >>>>
> >>>> @@ -627,63 +626,25 @@ 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));
> >>>> - if (!host->ioaddr) {
> >>>> - dev_err(dev, "failed to map registers\n");
> >>>> - ret = -ENXIO;
> >>>> - goto err_req_regs;
> >>>> - }
> >>>> -
> >>>> /* Ensure we have minimal gpio selected CMD/CLK/Detect */
> >>>> - if (pdata->cfg_gpio)
> >>>> - pdata->cfg_gpio(pdev, pdata->max_width);
> >>>> -
> >>>> - host->hw_name = "samsung-hsmmc";
> >>>> - host->ops = &sdhci_s3c_ops;
> >>>> - host->quirks = 0;
> >>>> - host->irq = irq;
> >>>> -
> >>>> - /* 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;
> >>>> + if (sc->pdata->cfg_gpio)
> >>>> + sc->pdata->cfg_gpio(pdev, sc->pdata->max_width);
> >>>>
> >>>> #ifndef CONFIG_MMC_SDHCI_S3C_DMA
> >>>> -
> >>>> /* we currently see overruns on errors, so disable the SDMA
> >>>> * support as well. */
> >>>> host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
> >>>>
> >>>> #endif /* CONFIG_MMC_SDHCI_S3C_DMA */
> >>>>
> >>>> - /* It seems we do not get an DATA transfer complete on non-busy
> >>>> - * transfers, not sure if this is a problem with this specific
> >>>> - * SDHCI block, or a missing configuration that needs to be set. */
> >>>> - host->quirks |= SDHCI_QUIRK_NO_BUSY_IRQ;
> >>>> -
> >>>> - /* This host supports the Auto CMD12 */
> >>>> - host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;
> >>>> -
> >>>> - /* Samsung SoCs need BROKEN_ADMA_ZEROLEN_DESC */
> >>>> - host->quirks |= SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC;
> >>>> -
> >>>> - if (pdata->cd_type == S3C_SDHCI_CD_NONE ||
> >>>> - pdata->cd_type == S3C_SDHCI_CD_PERMANENT)
> >>>> + if (sc->pdata->cd_type == S3C_SDHCI_CD_NONE ||
> >>>> + sc->pdata->cd_type == S3C_SDHCI_CD_PERMANENT)
> >>>> host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;
> >>>>
> >>>> - if (pdata->cd_type == S3C_SDHCI_CD_PERMANENT)
> >>>> + if (sc->pdata->cd_type == S3C_SDHCI_CD_PERMANENT)
> >>>> host->mmc->caps = MMC_CAP_NONREMOVABLE;
> >>>>
> >>>> - switch (pdata->max_width) {
> >>>> + switch (sc->pdata->max_width) {
> >>>> case 8:
> >>>> host->mmc->caps |= MMC_CAP_8_BIT_DATA;
> >>>> case 4:
> >>>> @@ -691,17 +652,12 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
> >>>> break;
> >>>> }
> >>>>
> >>>> - if (pdata->host_caps)
> >>>> - host->mmc->caps |= pdata->host_caps;
> >>>> -
> >>>> - if (pdata->pm_caps)
> >>>> - host->mmc->pm_caps |= pdata->pm_caps;
> >>>> -
> >>>> - host->quirks |= (SDHCI_QUIRK_32BIT_DMA_ADDR |
> >>>> - SDHCI_QUIRK_32BIT_DMA_SIZE);
> >>>> + /* It supports additional host capabilities if needed */
> >>>> + if (sc->pdata->host_caps)
> >>>> + host->mmc->caps |= sc->pdata->host_caps;
> >>>>
> >>>> - /* HSMMC on Samsung SoCs uses SDCLK as timeout clock */
> >>>> - host->quirks |= SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK;
> >>>> + if (sc->pdata->pm_caps)
> >>>> + host->mmc->pm_caps |= sc->pdata->pm_caps;
> >>>>
> >>>> /*
> >>>> * If controller does not have internal clock divider,
> >>>> @@ -713,10 +669,6 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
> >>>> sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
> >>>> }
> >>>>
> >>>> - /* It supports additional host capabilities if needed */
> >>>> - if (pdata->host_caps)
> >>>> - host->mmc->caps |= pdata->host_caps;
> >>>> -
> >>>> ret = sdhci_add_host(host);
> >>>> if (ret) {
> >>>> dev_err(dev, "sdhci_add_host() failed\n");
> >>>> @@ -726,38 +678,35 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
> >>>> /* The following two methods of card detection might call
> >>>> sdhci_s3c_notify_change() immediately, so they can be called
> >>>> only after sdhci_add_host(). Setup errors are ignored. */
> >>>> - if (pdata->cd_type == S3C_SDHCI_CD_EXTERNAL && pdata->ext_cd_init)
> >>>> - pdata->ext_cd_init(&sdhci_s3c_notify_change);
> >>>> - if (pdata->cd_type == S3C_SDHCI_CD_GPIO &&
> >>>> - gpio_is_valid(pdata->ext_cd_gpio))
> >>>> + if (sc->pdata->cd_type == S3C_SDHCI_CD_EXTERNAL &&
> >>>> + sc->pdata->ext_cd_init)
> >>>> + sc->pdata->ext_cd_init(&sdhci_s3c_notify_change);
> >>>> + if (sc->pdata->cd_type == S3C_SDHCI_CD_GPIO &&
> >>>> + gpio_is_valid(sc->pdata->ext_cd_gpio))
> >>>> sdhci_s3c_setup_card_detect_gpio(sc);
> >>>>
> >>>> return 0;
> >>>>
> >>>> - err_add_host:
> >>>> - release_resource(sc->ioarea);
> >>>> - kfree(sc->ioarea);
> >>>> -
> >>>> - err_req_regs:
> >>>> +err_add_host:
> >>>> for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
> >>>> if (sc->clk_bus[ptr]) {
> >>>> clk_disable(sc->clk_bus[ptr]);
> >>>> clk_put(sc->clk_bus[ptr]);
> >>>> }
> >>>> }
> >>>> -
> >>>> - err_no_busclks:
> >>>> +err_no_busclks:
> >>>> clk_disable(sc->clk_io);
> >>>> clk_put(sc->clk_io);
> >>>>
> >>>> - err_io_clk:
> >>>> +err_io_clk:
> >>>> for (ptr = 0; ptr < NUM_GPIOS(sc->pdata->max_width); ptr++)
> >>>> gpio_free(sc->gpios[ptr]);
> >>>> - if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL)
> >>>> + if (sc->pdata->cd_type == S3C_SDHCI_CD_INTERNAL)
> >>>> gpio_free(sc->ext_cd_gpio);
> >>>>
> >>>> - err_pdata:
> >>>> - sdhci_free_host(host);
> >>>> +err_alloc_host:
> >>>> + sdhci_pltfm_free(pdev);
> >>>> + dev_err(&pdev->dev, "%s failed %d\n", __func__, ret);
> >>>>
> >>>> return ret;
> >>>> }
> >>>> @@ -765,12 +714,13 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
> >>>> static int __devexit sdhci_s3c_remove(struct platform_device *pdev)
> >>>> {
> >>>> struct sdhci_host *host = platform_get_drvdata(pdev);
> >>>> - struct sdhci_s3c *sc = sdhci_priv(host);
> >>>> - struct s3c_sdhci_platdata *pdata = sc->pdata;
> >>>> - int ptr;
> >>>> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> >>>> + struct sdhci_s3c *sc = pltfm_host->priv;
> >>>> + int ptr, ret;
> >>>>
> >>>> - if (pdata->cd_type == S3C_SDHCI_CD_EXTERNAL && pdata->ext_cd_cleanup)
> >>>> - pdata->ext_cd_cleanup(&sdhci_s3c_notify_change);
> >>>> + if (sc->pdata->cd_type == S3C_SDHCI_CD_EXTERNAL &&
> >>>> + sc->pdata->ext_cd_cleanup)
> >>>> + sc->pdata->ext_cd_cleanup(&sdhci_s3c_notify_change);
> >>>>
> >>>> if (sc->ext_cd_irq)
> >>>> free_irq(sc->ext_cd_irq, sc);
> >>>> @@ -778,9 +728,9 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev)
> >>>> if (gpio_is_valid(sc->ext_cd_gpio))
> >>>> gpio_free(sc->ext_cd_gpio);
> >>>>
> >>>> - sdhci_remove_host(host, 1);
> >>>> + ret = sdhci_pltfm_unregister(pdev);
> >>>>
> >>>> - for (ptr = 0; ptr < 3; ptr++) {
> >>>> + for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
> >>>> if (sc->clk_bus[ptr]) {
> >>>> clk_disable(sc->clk_bus[ptr]);
> >>>> clk_put(sc->clk_bus[ptr]);
> >>>> @@ -789,48 +739,14 @@ 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);
> >>>> -
> >>>> if (pdev->dev.of_node) {
> >>>> for (ptr = 0; ptr < NUM_GPIOS(sc->pdata->max_width); ptr++)
> >>>> gpio_free(sc->gpios[ptr]);
> >>>> }
> >>>>
> >>>> - sdhci_free_host(host);
> >>>> - platform_set_drvdata(pdev, NULL);
> >>>> -
> >>>> - return 0;
> >>>> -}
> >>>> -
> >>>> -#ifdef CONFIG_PM
> >>>> -
> >>>> -static int sdhci_s3c_suspend(struct device *dev)
> >>>> -{
> >>>> - struct sdhci_host *host = dev_get_drvdata(dev);
> >>>> -
> >>>> - return sdhci_suspend_host(host);
> >>>> -}
> >>>> -
> >>>> -static int sdhci_s3c_resume(struct device *dev)
> >>>> -{
> >>>> - struct sdhci_host *host = dev_get_drvdata(dev);
> >>>> -
> >>>> - return sdhci_resume_host(host);
> >>>> + return ret;
> >>>> }
> >>>>
> >>>> -static const struct dev_pm_ops sdhci_s3c_pmops = {
> >>>> - .suspend = sdhci_s3c_suspend,
> >>>> - .resume = sdhci_s3c_resume,
> >>>> -};
> >>>> -
> >>>> -#define SDHCI_S3C_PMOPS (&sdhci_s3c_pmops)
> >>>> -
> >>>> -#else
> >>>> -#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,
> >>>> @@ -870,7 +786,7 @@ static struct platform_driver sdhci_s3c_driver = {
> >>>> .owner = THIS_MODULE,
> >>>> .name = "s3c-sdhci",
> >>>> .of_match_table = of_match_ptr(sdhci_s3c_dt_match),
> >>>> - .pm = SDHCI_S3C_PMOPS,
> >>>> + .pm = SDHCI_PLTFM_PMOPS,
> >>>> },
> >>>> };
> >>>>
> >>>> --
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