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ARM: imx6: Derive spdif clock from pll3_pfd3_454m 

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 <Guangyu.Chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This commit is contained in:
Nicolin Chen 2013-12-13 23:37:52 +08:00 committed by Shawn Guo
parent df79bc9c27
commit 4390e62260
2 changed files with 6 additions and 0 deletions
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3
arch/arm/mach-imx/clk-imx6q.c
View File

@ -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]);

3
arch/arm/mach-imx/clk-imx6sl.c
View File

@ -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);