Hi,
I would like to adjust the display refresh rate in my custom iMX6UL board based on EVK board.
Device tree entry for lcdif:
&lcdif { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_lcdif_dat &pinctrl_lcdif_ctrl>; display = <&display0>; status = "okay"; display0: display { bits-per-pixel = <16>; bus-width = <24>; display-timings { native-mode = <&timing0>; timing0: timing0 { clock-frequency = <33300000>; hactive = <800>; vactive = <480>; hfront-porch = <8>; hback-porch = <4>; hsync-len = <41>; vback-porch = <2>; vfront-porch = <4>; vsync-len = <10>; }; }; }; };
For imx6qdl, there is a mode_str parameter in mxcfb entries where we can adjust refresh rate like mode_str ="800x480M@60";
I don't see any fb entry for imx6ul where I can specify mode_str. I don't even know what refresh rate I'm using now. Maybe 60Hz by default?
How can I change this value?
Thanks.
Solved! Go to Solution.
Hi
you are right, linux/Documentation/devicetree/bindings/fb/mxsfb.txt
linux-2.6-imx.git - Freescale i.MX Linux Tree
do not have mode_str parameter, so seems refresh rate could be
adjusted by clock-frequency parameter.
Best regards
igor
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Hi
you are right, linux/Documentation/devicetree/bindings/fb/mxsfb.txt
linux-2.6-imx.git - Freescale i.MX Linux Tree
do not have mode_str parameter, so seems refresh rate could be
adjusted by clock-frequency parameter.
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------