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>
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
index c9a86d8..85503deb 100644
--- a/arch/arm/mach-davinci/devices-tnetv107x.c
+++ b/arch/arm/mach-davinci/devices-tnetv107x.c
@@ -344,7 +344,20 @@
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);