Am Donnerstag, 5. Juli 2012, 11:18:14 schrieb Wei Ni:

On Wed, 2012-07-04 at 19:51 +0800, Marc Dietrich wrote:

quoted

Am Mittwoch, 4. Juli 2012, 19:23:33 schrieb Wei Ni:

quoted

On Wed, 2012-07-04 at 18:43 +0800, Marc Dietrich wrote:

quoted

Am Mittwoch, 4. Juli 2012, 17:34:44 schrieb Wei Ni:

quoted

Set up the wlan clock tree for Tegra20 and Tegra30.

Signed-off-by: Wei Ni <redacted>
---

 arch/arm/mach-tegra/board-dt-tegra20.c |    1 +
 arch/arm/mach-tegra/board-dt-tegra30.c |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c

b/arch/arm/mach-tegra/board-dt-tegra20.c index 70a19a9..fbcc7d9
100644

--- a/arch/arm/mach-tegra/board-dt-tegra20.c
+++ b/arch/arm/mach-tegra/board-dt-tegra20.c

@@ -78,6 +78,7 @@ static __initdata struct tegra_clk_init_table

tegra_dt_clk_init_table[] = { { "pll_a",      "pll_p_out1",  
56448000,

  true },
  
 	{ "pll_a_out0", "pll_a",        11289600,       true },
 	{ "cdev1",      NULL,           0,              true },

+	{ "blink",      "clk_32k",      32768,          true },

what's the reason to enable this on all boards? Would it make sense to
set
this to "false" instead?

This clock is used for the wlan device, it need to be enabled, so that
the wlan device can be powered on, and then the mmc driver can enumerate
it.

...

Yes we have thought about this issue.
In here we need to enable this clock before loading wifi driver, so that
the mmc driver can enumerate it.
This likes another thing that the SD controller should be taught how to
provide to clients, such as trigger the power/reset gpios. We had talked
about it in the:
http://www.spinics.net/lists/linux-wireless/msg92093.html

ah, sorry, I didn't followed this discussion.

And we are trying to provide the tegra clk framework support, so at that
time we could set this clock for different boards.

So I suppose we can just dump it into the clk init tables for now.

ok, thanks for explanation. Let's hope there will be a better solution in the 
future.

Thanks!

Marc