[PATCH 1/2] clk: tegra: remove USB from clk init table

Stephen Warren swarren at wwwdotorg.org
Mon May 6 17:11:10 EDT 2013


From: Lucas Stach <dev at lynxeye.de>

The USB clocks are just clock gates, so no need to set a specific clock.
In fact trying to set a specific clock is just a NOP if the requested
clockrate is the same as those of the parent (clk_m) or will trigger a
WARN_ON() if rates don't match up.

As we are not setting a specific rate, nor activating the clocks at
init, there is no point in keeping the the usb entries in the clock init
table.

Signed-off-by: Lucas Stach <dev at lynxeye.de>
Acked-by: Peter De Schrijver <pdeschrijver at nvidia.com>
Reviewed-by: Prashant Gaikwad <pgaikwad at nvidia.com>
Acked-by: Mike Turquette <mturquette at linaro.org>
Tested-by: Stephen Warren <swarren at nvidia.com>
Signed-off-by: Stephen Warren <swarren at nvidia.com>
---
 drivers/clk/tegra/clk-tegra20.c |    3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c
index b0405b6..ecfe532 100644
--- a/drivers/clk/tegra/clk-tegra20.c
+++ b/drivers/clk/tegra/clk-tegra20.c
@@ -1234,9 +1234,6 @@ static __initdata struct tegra_clk_init_table init_table[] = {
 	{uartc, pll_p, 0, 0},
 	{uartd, pll_p, 0, 0},
 	{uarte, pll_p, 0, 0},
-	{usbd, clk_max, 12000000, 0},
-	{usb2, clk_max, 12000000, 0},
-	{usb3, clk_max, 12000000, 0},
 	{pll_a, clk_max, 56448000, 1},
 	{pll_a_out0, clk_max, 11289600, 1},
 	{cdev1, clk_max, 0, 1},
-- 
1.7.10.4




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