Hi Guennadi,
On Wed, Jun 13, 2012 at 03:37:31PM +0200, Guennadi Liakhovetski wrote:
> Add regulator support to the sh_mmcif driver, but also preserve the current
> power-callback.
>
> Signed-off-by: Guennadi Liakhovetski <[email protected]>
> ---
>
> v4: update to the new mmc_regulator_get_supply() function
>
> drivers/mmc/host/sh_mmcif.c | 38 +++++++++++++++++++++++++++++++-------
> 1 files changed, 31 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
> index 4680276..204bced 100644
> --- a/drivers/mmc/host/sh_mmcif.c
> +++ b/drivers/mmc/host/sh_mmcif.c
> @@ -923,10 +923,22 @@ static int sh_mmcif_clk_update(struct sh_mmcif_host
> *host)
> return ret;
> }
>
> +static void sh_mmcif_set_power(struct sh_mmcif_host *host, struct mmc_ios
> *ios)
> +{
> + struct sh_mmcif_plat_data *pd = host->pd->dev.platform_data;
> + struct mmc_host *mmc = host->mmc;
> +
> + if (pd->set_pwr)
> + pd->set_pwr(host->pd, ios->power_mode != MMC_POWER_OFF);
> + if (!IS_ERR(mmc->supply.vmmc))
> + /* Errors ignored... */
> + mmc_regulator_set_ocr(mmc, mmc->supply.vmmc,
> + ios->power_mode ? ios->vdd : 0);
> +}
> +
> static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
> {
> struct sh_mmcif_host *host = mmc_priv(mmc);
> - struct sh_mmcif_plat_data *p = host->pd->dev.platform_data;
> unsigned long flags;
>
> spin_lock_irqsave(&host->lock, flags);
> @@ -944,6 +956,7 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct
> mmc_ios *ios)
> sh_mmcif_request_dma(host, host->pd->dev.platform_data);
> host->card_present = true;
> }
> + sh_mmcif_set_power(host, ios);
> } else if (ios->power_mode == MMC_POWER_OFF || !ios->clock) {
> /* clock stop */
> sh_mmcif_clock_control(host, 0);
> @@ -957,8 +970,8 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct
> mmc_ios *ios)
> pm_runtime_put(&host->pd->dev);
> clk_disable(host->hclk);
> host->power = false;
> - if (p->set_pwr && ios->power_mode == MMC_POWER_OFF)
> - p->set_pwr(host->pd, 0);
> + if (ios->power_mode == MMC_POWER_OFF)
> + sh_mmcif_set_power(host, ios);
> }
> host->state = STATE_IDLE;
> return;
> @@ -966,8 +979,6 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct
> mmc_ios *ios)
>
> if (ios->clock) {
> if (!host->power) {
> - if (p->set_pwr)
> - p->set_pwr(host->pd, ios->power_mode);
> sh_mmcif_clk_update(host);
> pm_runtime_get_sync(&host->pd->dev);
> host->power = true;
It is unclear to me how this hunk relates to the description of the
change in the changelog.
> @@ -1251,6 +1262,19 @@ static void mmcif_timeout_work(struct work_struct
> *work)
> mmc_request_done(host->mmc, mrq);
> }
>
> +static void sh_mmcif_init_ocr(struct sh_mmcif_host *host)
> +{
> + struct sh_mmcif_plat_data *pd = host->pd->dev.platform_data;
> + struct mmc_host *mmc = host->mmc;
> +
> + mmc_regulator_get_supply(mmc);
> +
> + if (!mmc->ocr_avail)
> + mmc->ocr_avail = pd->ocr;
> + else if (pd->ocr)
> + dev_warn(mmc_dev(mmc), "Platform OCR mask is ignored\n");
> +}
> +
> static int __devinit sh_mmcif_probe(struct platform_device *pdev)
> {
> int ret = 0, irq[2];
> @@ -1298,8 +1322,8 @@ static int __devinit sh_mmcif_probe(struct
> platform_device *pdev)
> spin_lock_init(&host->lock);
>
> mmc->ops = &sh_mmcif_ops;
> - if (pd->ocr)
> - mmc->ocr_avail = pd->ocr;
> + sh_mmcif_init_ocr(host);
> +
> mmc->caps = MMC_CAP_MMC_HIGHSPEED;
> if (pd->caps)
> mmc->caps |= pd->caps;
> --
> 1.7.2.5
>
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