[PATCH v7 3/3] ARM: mx28evk: set a initial clock rate for saif
From: Dong Aisheng <hidden>
Date: 2011-11-22 15:54:25
Also in:
alsa-devel
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Signed-off-by: Dong Aisheng <redacted> Acked-by: Marek Vasut <redacted> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Wolfram Sang <redacted> Cc: Uwe Kleine-K?nig <redacted> Cc: Mark Brown <redacted> Cc: Liam Girdwood <redacted> --- Changes since v1: * make comments a little better. It's originally suggested by Uwe. --- arch/arm/mach-mxs/clock-mx28.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c
index c51fe85..b0c248d 100644
--- a/arch/arm/mach-mxs/clock-mx28.c
+++ b/arch/arm/mach-mxs/clock-mx28.c@@ -808,6 +808,15 @@ int __init mx28_clocks_init(void) clk_set_parent(&saif0_clk, &pll0_clk); clk_set_parent(&saif1_clk, &pll0_clk); + /* + * Set an initial clock rate for the saif internal logic to work + * properly. This is important when working in EXTMASTER mode that + * uses the other saif's BITCLK&LRCLK but it still needs a basic + * clock which should be fast enough for the internal logic. + */ + clk_set_rate(&saif0_clk, 24000000); + clk_set_rate(&saif1_clk, 24000000); + clkdev_add_table(lookups, ARRAY_SIZE(lookups)); mxs_timer_init(&clk32k_clk, MX28_INT_TIMER0);
--
1.7.0.4