Erik, Can you say how much testing drivers/video/tegra/dc/hdmi.c has had re: audio-over-HDMI and in what context? I assume some, due to commits such as e47469d3fd "video: tegra: fix HDMI audio programming". I ask because of the following code: tegra_hdmi_writel(hdmi, SPARE_HW_CTS | SPARE_FORCE_SW_CTS | SPARE_CTS_RESET_VAL(1), HDMI_NV_PDISP_HDMI_SPARE); I had to remove SPARE_FORCE_SW_CTS from this register write to get audio-over-HDMI working correctly. As I read the specs, HW_CTS tells the HW to calculate the CTS value itself. Adding SW_CTS into the mix overrides this request, and requires SW to both program the selected CTS value into a register *and* program register HDMI_NV_PDISP_HDMI_ACR_CTRL to tell the HW how to determine the current audio sample rate, and the latter is not currently done. Can you comment any further? Thanks. -- nvpublic -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html