diff mbox

[v3,1/2] ARM: dts: imx6qdl-sabresd: Allow HDMI and LVDS to work simultaneously

Message ID 1435338654-9098-1-git-send-email-fabio.estevam@freescale.com (mailing list archive)
State New, archived
Headers show

Commit Message

Fabio Estevam June 26, 2015, 5:10 p.m. UTC 
Currently it is not possible to have HDMI and LVDS working simultaneously,
because both ports try to use PLL5.

Move the LVDS clock parent to PLL3_USB_OTG, so that HDMI and LVDS can be
driven from independent sources.

With this change the LDB pixel clock goes to 68.57 MHz, which is still
within the valid range for the HSD100PXN1 LVDS panel.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
---
Changes since v2:
- None
Changes since v1:
- Move the clock assignment inside &clks as suggested by Philipp

 arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Shawn Guo July 13, 2015, 8:39 a.m. UTC | #1 
On Fri, Jun 26, 2015 at 02:10:53PM -0300, Fabio Estevam wrote:
> Currently it is not possible to have HDMI and LVDS working simultaneously,
> because both ports try to use PLL5.
> 
> Move the LVDS clock parent to PLL3_USB_OTG, so that HDMI and LVDS can be
> driven from independent sources.
> 
> With this change the LDB pixel clock goes to 68.57 MHz, which is still
> within the valid range for the HSD100PXN1 LVDS panel.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
> Acked-by: Philipp Zabel <p.zabel@pengutronix.de>

Applied both, thanks.
diff mbox

Patch

diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index a626e6d..cca847e 100644
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
@@ -141,6 +141,13 @@ 
 	status = "okay";
 };
 
+&clks {
+	assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
+			  <&clks IMX6QDL_CLK_LDB_DI1_SEL>;
+	assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>,
+				 <&clks IMX6QDL_CLK_PLL3_USB_OTG>;
+};
+
 &ecspi1 {
 	fsl,spi-num-chipselects = <1>;
 	cs-gpios = <&gpio4 9 0>;