On 26 March 2015 at 02:18, NeilBrown <neilb@xxxxxxx> wrote:
> On Thu, 26 Mar 2015 08:43:37 +1100 NeilBrown <neil@xxxxxxxxxx> wrote:
>
>> enable and disable are only used to get and put
>> runtime pm references. .set_ios already does this
>> itself, and other drivers just do it in set_ios
>> and .request without using enable/disable.
>>
>> So add pm_runtime get/put to omap_hsmmc_request(),
>> and discard the enable/disable methods.
>>
>> Signed-off-by: NeilBrown <neil@xxxxxxxxxx>
>
> Sorry, that patch wasn't much good. This one I have really tested properly
> and checked that the 'put' match the 'get's and that the device to regularly
> go to sleep as expected.
>
> NeilBrown
>
>
> From: NeilBrown <neil@xxxxxxxxxx>
> Date: Thu, 26 Mar 2015 08:28:43 +1100
> Subject: [PATCH] mmc: omap_hsmmc: stop using .enable and .disable method.
>
> enable and disable are only used to get and put
> runtime pm references. .set_ios already does this
> itself, and other drivers just do it in set_ios
> and .request without using enable/disable.
>
> So add pm_runtime get/put to omap_hsmmc_request(),
> and discard the enable/disable methods.
>
> Signed-off-by: NeilBrown <neil@xxxxxxxxxx>
>
> diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
> index f84cfb01716d..2cb81538a612 100644
> --- a/drivers/mmc/host/omap_hsmmc.c
> +++ b/drivers/mmc/host/omap_hsmmc.c
> @@ -882,6 +882,8 @@ static void omap_hsmmc_request_done(struct omap_hsmmc_host *host, struct mmc_req
> return;
> host->mrq = NULL;
> mmc_request_done(host->mmc, mrq);
> + pm_runtime_mark_last_busy(host->dev);
> + pm_runtime_put_autosuspend(host->dev);
> }
How about adding a function like this:
_omap_hsmmc_request_done(struct omap_hsmmc_host *host, struct mmc_req)
{
mmc_request_done(host->mmc, mrq);
pm_runtime_mark_last_busy(host->dev);
pm_runtime_put_autosuspend(host->dev);
}
Then just invoke it from those places were needed?
>
> /*
> @@ -1305,6 +1307,8 @@ static void omap_hsmmc_dma_callback(void *param)
>
> host->mrq = NULL;
> mmc_request_done(host->mmc, mrq);
> + pm_runtime_mark_last_busy(host->dev);
> + pm_runtime_put_autosuspend(host->dev);
> }
> }
>
> @@ -1537,6 +1541,7 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
>
> BUG_ON(host->req_in_progress);
> BUG_ON(host->dma_ch != -1);
> + pm_runtime_get_sync(host->dev);
> if (host->protect_card) {
> if (host->reqs_blocked < 3) {
> /*
> @@ -1553,6 +1558,8 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
> req->data->error = -EBADF;
> req->cmd->retries = 0;
> mmc_request_done(mmc, req);
> + pm_runtime_mark_last_busy(host->dev);
> + pm_runtime_put_autosuspend(host->dev);
> return;
> } else if (host->reqs_blocked)
> host->reqs_blocked = 0;
> @@ -1566,6 +1573,8 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
> req->data->error = err;
> host->mrq = NULL;
> mmc_request_done(mmc, req);
> + pm_runtime_mark_last_busy(host->dev);
> + pm_runtime_put_autosuspend(host->dev);
> return;
> }
> if (req->sbc && !(host->flags & AUTO_CMD23)) {
> @@ -1778,25 +1787,6 @@ static void omap_hsmmc_conf_bus_power(struct omap_hsmmc_host *host)
> set_sd_bus_power(host);
> }
>
> -static int omap_hsmmc_enable_fclk(struct mmc_host *mmc)
> -{
> - struct omap_hsmmc_host *host = mmc_priv(mmc);
> -
> - pm_runtime_get_sync(host->dev);
> -
> - return 0;
> -}
> -
> -static int omap_hsmmc_disable_fclk(struct mmc_host *mmc)
> -{
> - struct omap_hsmmc_host *host = mmc_priv(mmc);
> -
> - pm_runtime_mark_last_busy(host->dev);
> - pm_runtime_put_autosuspend(host->dev);
> -
> - return 0;
> -}
> -
> static int omap_hsmmc_multi_io_quirk(struct mmc_card *card,
> unsigned int direction, int blk_size)
> {
> @@ -1808,8 +1798,6 @@ static int omap_hsmmc_multi_io_quirk(struct mmc_card *card,
> }
>
> static struct mmc_host_ops omap_hsmmc_ops = {
> - .enable = omap_hsmmc_enable_fclk,
> - .disable = omap_hsmmc_disable_fclk,
> .post_req = omap_hsmmc_post_req,
> .pre_req = omap_hsmmc_pre_req,
> .request = omap_hsmmc_request,
Finally, I think you have forgotten to deal with pm_runtime_get|put*()
in omap_hsmmc_enable_sdio_irq().
Kind regards
Uffe
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