mmc: cqhci: add new cqhci_host_ops pre_enable() and post_disable()

Add pre_enable() and post_disable() for cqhci_host_ops.
Add hook functions before cqhci enable and
after cqhci disable for platforms need them.

Signed-off-by: Chun-Hung Wu <chun-hung.wu@mediatek.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/1598520783-25250-2-git-send-email-chun-hung.wu@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/cqhci.c b/drivers/mmc/host/cqhci.c
index cfa87df..697fe40 100644 (file)
--- a/drivers/mmc/host/cqhci.c
+++ b/drivers/mmc/host/cqhci.c
@@ -376,6 +376,9 @@ static void cqhci_off(struct mmc_host *mmc)
        else
                pr_debug("%s: cqhci: CQE off\n", mmc_hostname(mmc));
 
+       if (cq_host->ops->post_disable)
+               cq_host->ops->post_disable(mmc);
+
        mmc->cqe_on = false;
 }
 
@@ -580,6 +583,9 @@ static int cqhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
                __cqhci_enable(cq_host);
 
        if (!mmc->cqe_on) {
+               if (cq_host->ops->pre_enable)
+                       cq_host->ops->pre_enable(mmc);
+
                cqhci_writel(cq_host, 0, CQHCI_CTL);
                mmc->cqe_on = true;
                pr_debug("%s: cqhci: CQE on\n", mmc_hostname(mmc));

diff --git a/drivers/mmc/host/cqhci.h b/drivers/mmc/host/cqhci.h
index 4377001..89bf6ad 100644 (file)
--- a/drivers/mmc/host/cqhci.h
+++ b/drivers/mmc/host/cqhci.h
@@ -206,6 +206,8 @@ struct cqhci_host_ops {
        void (*disable)(struct mmc_host *mmc, bool recovery);
        void (*update_dcmd_desc)(struct mmc_host *mmc, struct mmc_request *mrq,
                                 u64 *data);
+       void (*pre_enable)(struct mmc_host *mmc);
+       void (*post_disable)(struct mmc_host *mmc);
 };
 
 static inline void cqhci_writel(struct cqhci_host *host, u32 val, int reg)