diff options
| author | Nicolin Chen <Guangyu.Chen@freescale.com> | 2014-04-23 12:42:45 +0800 |
|---|---|---|
| committer | Nicolin Chen <Guangyu.Chen@freescale.com> | 2014-04-23 17:00:16 +0800 |
| commit | f802466e492c478b433dd84dd0c16b8cf11e987a (patch) | |
| tree | b894f2cf7cfa03678318baff6a0e89e2de0b2e74 /arch | |
| parent | 670c44be3abdb5174059b51b62b90ff9ea021c0e (diff) | |
ENGR00309977-2 ARM: imx6q/sl: Set SPDIF clock to 22736841Hz
Since we no longer use clk_set_rate() in spdif driver, the rate we provide
to it on imx6q/sl platforms is no more contented for its supporting sample
rates.
By setting the clock to 22736841Hz, we can get the sample rates:
48008Hz for 48000Hz
32005Hz for 32000Hz
43859Hz for 44100Hz
The results for 48KHz and 32KHz has changed comparing to the previous
release, but the one for 44100Hz has a bit lose even though it should
be the best we can get based on the current clock rate. If user want
to playback a perfect 44100Hz, they need to change the parent clock
rate.
Acked-by: Wang Shengjiu <b02247@freescale.com>
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit f12e2ea9c6c5557adb3bbe26c51021978f2c8d99)
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-imx/clk-imx6q.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/clk-imx6sl.c | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index 6efe6f2316f5..77d425c4a3a5 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -691,6 +691,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) clk_set_parent(clk[ssi3_sel], clk[pll4_audio_div]); clk_set_parent(clk[esai_sel], clk[pll4_audio_div]); clk_set_parent(clk[spdif_sel], clk[pll3_pfd3_454m]); + clk_set_rate(clk[spdif_podf], 227368421); clk_set_parent(clk[spdif1_sel], clk[pll3_usb_otg]); clk_set_rate(clk[spdif1_sel], 7500000); diff --git a/arch/arm/mach-imx/clk-imx6sl.c b/arch/arm/mach-imx/clk-imx6sl.c index 95f8b0b8d029..c9eb48a09159 100644 --- a/arch/arm/mach-imx/clk-imx6sl.c +++ b/arch/arm/mach-imx/clk-imx6sl.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2013 Freescale Semiconductor, Inc. + * Copyright (C) 2013-2014 Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -458,6 +458,7 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node) /* Audio clocks */ clk_set_parent(clks[IMX6SL_CLK_SPDIF0_SEL], clks[IMX6SL_CLK_PLL3_PFD3]); + clk_set_rate(clks[IMX6SL_CLK_SPDIF0_PODF], 227368421); /* set extern_audio to be sourced from PLL4/audio PLL */ clk_set_parent(clks[IMX6SL_CLK_EXTERN_AUDIO_SEL], clks[IMX6SL_CLK_PLL4_AUDIO_DIV]); |