SPDIF can derive a TX clock for playback from one of its clock sources -- spdif root clock to match its supporting sample rates. So this patch set the spdif root clock's parent to pll3_pfd3_454m since the pll3_pfd3_454m can approximately meet its sample rate requirement.
Signed-off-by: Nicolin Chen <[email protected]> --- arch/arm/mach-imx/clk-imx6q.c | 3 +++ arch/arm/mach-imx/clk-imx6sl.c | 3 +++ 2 files changed, 6 insertions(+) diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index 74ecceb..af2e582 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -475,6 +475,9 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) if (ret) pr_warn("failed to set up CLKO: %d\n", ret); + /* Audio-related clocks configuration */ + clk_set_parent(clk[spdif_sel], clk[pll3_pfd3_454m]); + /* All existing boards with PCIe use LVDS1 */ if (IS_ENABLED(CONFIG_PCI_IMX6)) clk_set_parent(clk[lvds1_sel], clk[sata_ref]); diff --git a/arch/arm/mach-imx/clk-imx6sl.c b/arch/arm/mach-imx/clk-imx6sl.c index a747a7d..a222280 100644 --- a/arch/arm/mach-imx/clk-imx6sl.c +++ b/arch/arm/mach-imx/clk-imx6sl.c @@ -261,6 +261,9 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node) clk_prepare_enable(clks[IMX6SL_CLK_USBPHY2_GATE]); } + /* Audio-related clocks configuration */ + clk_set_parent(clks[IMX6SL_CLK_SPDIF0_SEL], clks[IMX6SL_CLK_PLL3_PFD3]); + np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-gpt"); base = of_iomap(np, 0); WARN_ON(!base); -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
