diff options
author | Cyril Chemparathy <cyril@ti.com> | 2010-10-20 17:49:57 -0400 |
---|---|---|
committer | Kevin Hilman <khilman@deeprootsystems.com> | 2010-12-10 07:33:50 -0800 |
commit | ced98628bf6ca7705b2d06df9c71a80cd1cd49bb (patch) | |
tree | fd97d94ee86d1967cc63a3ef83fcfb03d272a179 /arch/arm/mach-davinci/devices-tnetv107x.c | |
parent | b1d05be61f5d29118c2934e684628a5034186825 (diff) | |
download | linux-ced98628bf6ca7705b2d06df9c71a80cd1cd49bb.tar.bz2 |
davinci: minor tnetv107x clock tree fixes
This patch applies the following modifications to the tnetv107x clock tree:
- reparent tnetv107x usb clocks to usbss
- mark timer1 as always enabled
- enable set_rate on pll divider output clocks
- adjust tnetv107x tsc sysclk rate lower to fix invalid reset defaults
Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-davinci/devices-tnetv107x.c')
-rw-r--r-- | arch/arm/mach-davinci/devices-tnetv107x.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c index c9a86d8130d1..85503debda51 100644 --- a/arch/arm/mach-davinci/devices-tnetv107x.c +++ b/arch/arm/mach-davinci/devices-tnetv107x.c @@ -344,7 +344,20 @@ static struct platform_device tsc_device = { void __init tnetv107x_devices_init(struct tnetv107x_device_info *info) { - int i; + int i, error; + struct clk *tsc_clk; + + /* + * The reset defaults for tnetv107x tsc clock divider is set too high. + * This forces the clock down to a range that allows the ADC to + * complete sample conversion in time. + */ + tsc_clk = clk_get(NULL, "sys_tsc_clk"); + if (tsc_clk) { + error = clk_set_rate(tsc_clk, 5000000); + WARN_ON(error < 0); + clk_put(tsc_clk); + } platform_device_register(&edma_device); platform_device_register(&tnetv107x_wdt_device); |