2013-08-28 15:18:57

by Tuomas Tynkkynen

Subject: [PATCH 2nd RESEND] Clock changes for Tegra30 USB Host support

Hi all,

This patch is required for USB support on Tegra30 due to a hardware
quirk in the PLL_U oscillator which clocks the USB complex.

The other USB patches for Tegra30 and Tegra114 are already on their way
to 3.12, so it would be nice to have this one as well in 3.12.

Diff from previous: Added swarren's Tested-by & Acked-by.

Tuomas Tynkkynen (1):
clk: tegra30: Don't wait for PLL_U lock bit

drivers/clk/tegra/clk-tegra30.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--
1.8.1.5

2013-08-28 15:18:59

by Tuomas Tynkkynen

Subject: [PATCH 2nd RESEND] clk: tegra30: Don't wait for PLL_U lock bit

The lock bit on PLL_U does not seem to be working correctly and
sometimes never gets set when waiting for the PLL to come up.
Remove the TEGRA_PLL_USE_LOCK flag to use a constant delay.

Signed-off-by: Tuomas Tynkkynen <[email protected]>
Tested-by: Stephen Warren <[email protected]>
Acked-by: Stephen Warren <[email protected]>

---
drivers/clk/tegra/clk-tegra30.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c
index e2c6ca0..9103fc8 100644
--- a/drivers/clk/tegra/clk-tegra30.c
+++ b/drivers/clk/tegra/clk-tegra30.c
@@ -971,7 +971,7 @@ static void __init tegra30_pll_init(void)
/* PLLU */
clk = tegra_clk_register_pll("pll_u", "pll_ref", clk_base, pmc_base, 0,
0, &pll_u_params, TEGRA_PLLU | TEGRA_PLL_HAS_CPCON |
- TEGRA_PLL_SET_LFCON | TEGRA_PLL_USE_LOCK,
+ TEGRA_PLL_SET_LFCON,
pll_u_freq_table,
NULL);
clk_register_clkdev(clk, "pll_u", NULL);
--
1.8.1.5