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Message-Id: <20201106022726.19831-27-takahiro.akashi@linaro.org>
Date:   Fri,  6 Nov 2020 11:27:25 +0900
From:   AKASHI Takahiro <takahiro.akashi@...aro.org>
To:     ulf.hansson@...aro.org, adrian.hunter@...el.com
Cc:     linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        ben.chuang@...esyslogic.com.tw, greg.tu@...esyslogic.com.tw,
        AKASHI Takahiro <takahiro.akashi@...aro.org>
Subject: [RFC PATCH v3.1 26/27] mmc: sdhci-pci: add UHS-II support framework

This patch prepares for adding UHS-II support at a specific UHS-II
capable sdhci-pci controller, GL9755 for now.

Signed-off-by: Ben Chuang <ben.chuang@...esyslogic.com.tw>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@...aro.org>
---
 drivers/mmc/host/sdhci-pci-core.c | 16 +++++++++++++++-
 drivers/mmc/host/sdhci-pci.h      |  3 +++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index 23da7f7fe093..a896c7b325d0 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -39,6 +39,7 @@
 
 #include "sdhci.h"
 #include "sdhci-pci.h"
+#include "sdhci-uhs2.h"
 
 static void sdhci_pci_hw_reset(struct sdhci_host *host);
 
@@ -2215,7 +2216,10 @@ static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
 	if (scratch == (u32)-1)
 		dead = 1;
 
-	sdhci_remove_host(slot->host, dead);
+	if (slot->chip->fixes && slot->chip->fixes->remove_host)
+		slot->chip->fixes->remove_host(slot, dead);
+	else
+		sdhci_remove_host(slot->host, dead);
 
 	if (slot->chip->fixes && slot->chip->fixes->remove_slot)
 		slot->chip->fixes->remove_slot(slot, dead);
@@ -2226,6 +2230,16 @@ static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
 	sdhci_free_host(slot->host);
 }
 
+int sdhci_pci_uhs2_add_host(struct sdhci_pci_slot *slot)
+{
+	return sdhci_uhs2_add_host(slot->host);
+}
+
+void sdhci_pci_uhs2_remove_host(struct sdhci_pci_slot *slot, int dead)
+{
+	sdhci_uhs2_remove_host(slot->host, dead);
+}
+
 static void sdhci_pci_runtime_pm_allow(struct device *dev)
 {
 	pm_suspend_ignore_children(dev, 1);
diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h
index d0ed232af0eb..c961ec3cec26 100644
--- a/drivers/mmc/host/sdhci-pci.h
+++ b/drivers/mmc/host/sdhci-pci.h
@@ -137,6 +137,7 @@ struct sdhci_pci_fixes {
 	int			(*probe_slot) (struct sdhci_pci_slot *);
 	int			(*add_host) (struct sdhci_pci_slot *);
 	void			(*remove_slot) (struct sdhci_pci_slot *, int);
+	void			(*remove_host) (struct sdhci_pci_slot *, int);
 
 #ifdef CONFIG_PM_SLEEP
 	int			(*suspend) (struct sdhci_pci_chip *);
@@ -186,6 +187,8 @@ static inline void *sdhci_pci_priv(struct sdhci_pci_slot *slot)
 	return (void *)slot->private;
 }
 
+int sdhci_pci_uhs2_add_host(struct sdhci_pci_slot *slot);
+void sdhci_pci_uhs2_remove_host(struct sdhci_pci_slot *slot, int dead);
 #ifdef CONFIG_PM_SLEEP
 int sdhci_pci_resume_host(struct sdhci_pci_chip *chip);
 #endif
-- 
2.28.0

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