ipq806x: Add support for IPQ806x chip family

Patches are generated using the "format-patch" command from the
following location:
*https://www.codeaurora.org/cgit/quic/kernel/galak-msm/log/?h=apq_ipq_base
*rev=0771849495b4128cac2faf7d49c85c729fc48b20
Patches numbered 76/77/102/103 have already been integrated in 3.14.12,
so they're not in this list.

All these patches are either integrated are pending integration into
kernel.org, therefore these patches should go away once the kernel
gets upgraded to 3.16.

Support is currently limited to AP148 board but can be extended to other
platforms in the future.

These changes do not cover ethernet connectivity.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 42334

1 files changed, 86 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches/0118-ata-ahci_platform-runtime-resume-the-device-before-u.patch b/target/linux/ipq806x/patches/0118-ata-ahci_platform-runtime-resume-the-device-before-u.patch
new file mode 100644
index 0000000000..2f3e707c31
--- /dev/null
+++ b/target/linux/ipq806x/patches/0118-ata-ahci_platform-runtime-resume-the-device-before-u.patch
@@ -0,0 +1,86 @@
+From abe309ab531f22b9b89329bd825606f6b68a95a1 Mon Sep 17 00:00:00 2001
+From: Roger Quadros <rogerq@ti.com>
+Date: Sat, 22 Feb 2014 16:53:41 +0100
+Subject: [PATCH 118/182] ata: ahci_platform: runtime resume the device before
+ use
+
+On OMAP platforms the device needs to be runtime resumed before it can
+be accessed. The OMAP HWMOD framework takes care of enabling the
+module and its resources based on the device's runtime PM state.
+
+In this patch we runtime resume during .probe() and runtime suspend
+after .remove().
+
+We also update the runtime PM state during .resume().
+
+CC: Balaji T K <balajitk@ti.com>
+Signed-off-by: Roger Quadros <rogerq@ti.com>
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+Signed-off-by: Tejun Heo <tj@kernel.org>
+---
+ drivers/ata/ahci.h          |    1 +
+ drivers/ata/ahci_platform.c |   15 +++++++++++++++
+ 2 files changed, 16 insertions(+)
+
+diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
+index 3ab7ac9..51af275 100644
+--- a/drivers/ata/ahci.h
++++ b/drivers/ata/ahci.h
+@@ -324,6 +324,7 @@ struct ahci_host_priv {
+ 	u32 			em_loc; /* enclosure management location */
+ 	u32			em_buf_sz;	/* EM buffer size in byte */
+ 	u32			em_msg_type;	/* EM message type */
++	bool			got_runtime_pm; /* Did we do pm_runtime_get? */
+ 	struct clk		*clks[AHCI_MAX_CLKS]; /* Optional */
+ 	struct regulator	*target_pwr;	/* Optional */
+ 	struct phy		*phy;		/* If platform uses phy */
+diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
+index 243dde3..fc32863 100644
+--- a/drivers/ata/ahci_platform.c
++++ b/drivers/ata/ahci_platform.c
+@@ -23,6 +23,7 @@
+ #include <linux/libata.h>
+ #include <linux/ahci_platform.h>
+ #include <linux/phy/phy.h>
++#include <linux/pm_runtime.h>
+ #include "ahci.h"
+ 
+ static void ahci_host_stop(struct ata_host *host);
+@@ -216,6 +217,11 @@ static void ahci_platform_put_resources(struct device *dev, void *res)
+ 	struct ahci_host_priv *hpriv = res;
+ 	int c;
+ 
++	if (hpriv->got_runtime_pm) {
++		pm_runtime_put_sync(dev);
++		pm_runtime_disable(dev);
++	}
++
+ 	for (c = 0; c < AHCI_MAX_CLKS && hpriv->clks[c]; c++)
+ 		clk_put(hpriv->clks[c]);
+ }
+@@ -309,6 +315,10 @@ struct ahci_host_priv *ahci_platform_get_resources(
+ 		}
+ 	}
+ 
++	pm_runtime_enable(dev);
++	pm_runtime_get_sync(dev);
++	hpriv->got_runtime_pm = true;
++
+ 	devres_remove_group(dev, NULL);
+ 	return hpriv;
+ 
+@@ -603,6 +613,11 @@ int ahci_platform_resume(struct device *dev)
+ 	if (rc)
+ 		goto disable_resources;
+ 
++	/* We resumed so update PM runtime state */
++	pm_runtime_disable(dev);
++	pm_runtime_set_active(dev);
++	pm_runtime_enable(dev);
++
+ 	return 0;
+ 
+ disable_resources:
+-- 
+1.7.10.4
+