[RFC 3/4] ARM: dts: Add dss_deshdcp clock node under dra7-ctrl-core

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The DESHDCP clock is required only by the DES-HDCP block within HDMI in DSS.
However, if the clock isn't set before DSS clock domian is enabled, the clock
domain never comes out of idle state.

The DESHDCP clock is enabled/disabled at the DSS boundary by the bit
DSS_DESHDCP_CLKEN in CTRL_CORE_CONTROL_IO_2.

Add dss_deshdcp gate-clock node under dra7-ctrl-core. There are separate bit
fields for enabling and disabling the clock. We just map the enable bit since
this clock doesn't cause any impact if left enabled.

Signed-off-by: Archit Taneja <archit@xxxxxx>
---
 arch/arm/boot/dts/dra7xx-clocks.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index e96da9a..78d309c 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -2007,6 +2007,16 @@
 	};
 };
 
+&ctrl_core_clocks {
+	dss_deshdcp_clk: dss_deshdcp_clk {
+		#clock-cells = <0>;
+		compatible = "ti,gate-clock";
+		clocks = <&l3_iclk_div>;
+		ti,bit-shift = <0>;
+		reg = <0x0558>;
+	};
+};
+
 &cm_core_clockdomains {
 	coreaon_clkdm: coreaon_clkdm {
 		compatible = "ti,clockdomain";
-- 
1.8.3.2

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux