>>>>>> 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.
You're right. i have considered too much about this.
It can be removed. Then it needs not to use SDHCI_QUIRK_NONSTANDARD_CLOCK.
Best Regards,
Jaehoon Chung
>
> 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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>>>>>
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>>>>
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