Merge tag 'imx-soc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc

The i.MX SoC changes for 4.8:
 - A patch series including both cpuidle and FEC driver changes to
   disable deeper idle states when FEC is active while board level
   workaround for ERR006687 is not available
 - A number patches to fix sparse warnings and spell errors
 - A fix for TZIC FIQ translation from VIRQ to HWIRQ
 - Support compatible of i.MX7 Solo SoC which has a subset of i.MX7 Dual

* tag 'imx-soc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx: add support for i.MX 7Solo
  ARM: i.MX: Disable supervisor protect for i.MX51
  ARM: imx6: fix missing <soc/imx/cpuidle.h> in cpuidle-imx6q.c
  ARM: i.MX: Fix FIQ interrupt handling for TZIC
  ARM: imx6: fix static declaration in include/soc/imx/cpuidle.h
  ARM: imx6q: export cpuidle functions needed by fec driver
  ARM: imx: fix missing include of common.h
  ARM: imx: fix missing includes
  ARM: imx6: disable deeper idle states when FEC is active w/o HW workaround
  ARM: mach-imx6q: fix spelling mistake in error message

Signed-off-by: Olof Johansson <olof@lixom.net>

2 files changed, 14 insertions, 0 deletions

diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index f58f9ea51639..dc71a88e9c55 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -442,6 +442,8 @@ struct bufdesc_ex {
 #define FEC_QUIRK_SINGLE_MDIO		(1 << 11)
 /* Controller supports RACC register */
 #define FEC_QUIRK_HAS_RACC		(1 << 12)
+/* Interrupt doesn't wake CPU from deep idle */
+#define FEC_QUIRK_ERR006687		(1 << 13)
 
 struct bufdesc_prop {
 	int qid;
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index fea0f330ddbd..d9ecc30ebc8b 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -60,6 +60,7 @@
 #include <linux/if_vlan.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/prefetch.h>
+#include <soc/imx/cpuidle.h>
 
 #include <asm/cacheflush.h>
 
@@ -2818,6 +2819,9 @@ fec_enet_open(struct net_device *ndev)
 	if (ret)
 		goto err_enet_mii_probe;
 
+	if (fep->quirks & FEC_QUIRK_ERR006687)
+		imx6q_cpuidle_fec_irqs_used();
+
 	napi_enable(&fep->napi);
 	phy_start(ndev->phydev);
 	netif_tx_start_all_queues(ndev);
@@ -2853,6 +2857,9 @@ fec_enet_close(struct net_device *ndev)
 
 	phy_disconnect(ndev->phydev);
 
+	if (fep->quirks & FEC_QUIRK_ERR006687)
+		imx6q_cpuidle_fec_irqs_unused();
+
 	fec_enet_clk_enable(ndev, false);
 	pinctrl_pm_select_sleep_state(&fep->pdev->dev);
 	pm_runtime_mark_last_busy(&fep->pdev->dev);
@@ -3292,6 +3299,11 @@ fec_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, ndev);
 
+	if ((of_machine_is_compatible("fsl,imx6q") ||
+	     of_machine_is_compatible("fsl,imx6dl")) &&
+	    !of_property_read_bool(np, "fsl,err006687-workaround-present"))
+		fep->quirks |= FEC_QUIRK_ERR006687;
+
 	if (of_get_property(np, "fsl,magic-packet", NULL))
 		fep->wol_flag |= FEC_WOL_HAS_MAGIC_PACKET;