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[AUTOSEL,for,3.18,35/53] ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP

Message ID 20180308050230.8876-35-alexander.levin@microsoft.com
State New
Headers show
Series None | expand

Commit Message

Sasha Levin March 8, 2018, 5:03 a.m. UTC 
From: Kishon Vijay Abraham I <kishon@ti.com>


[ Upstream commit 2c949ce38f4e81d7487f165fa3b8f77d74a2a6c4 ]

The PCIe programming sequence in TRM suggests CLKSTCTRL of PCIe should be
set to SW_WKUP. There are no issues when CLKSTCTRL is set to HW_AUTO in RC
mode. However in EP mode, the host system is not able to access the
MEMSPACE and setting the CLKSTCTRL to SW_WKUP fixes it.

Acked-by: Tony Lindgren <tony@atomide.com>

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>

---
 arch/arm/mach-omap2/clockdomains7xx_data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.14.1
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Patch

diff --git a/arch/arm/mach-omap2/clockdomains7xx_data.c b/arch/arm/mach-omap2/clockdomains7xx_data.c
index 7581e036bda6..70e3b711e79c 100644
--- a/arch/arm/mach-omap2/clockdomains7xx_data.c
+++ b/arch/arm/mach-omap2/clockdomains7xx_data.c
@@ -524,7 +524,7 @@  static struct clockdomain pcie_7xx_clkdm = {
 	.dep_bit	  = DRA7XX_PCIE_STATDEP_SHIFT,
 	.wkdep_srcs	  = pcie_wkup_sleep_deps,
 	.sleepdep_srcs	  = pcie_wkup_sleep_deps,
-	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.flags		  = CLKDM_CAN_SWSUP,
 };
 
 static struct clockdomain atl_7xx_clkdm = {