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clk: tegra: Initialize PLL_C to sane rate on Tegra30

If the bootloader does not touch PLL_C it will stay in its reset state,
failing to lock when enabled. This leads to consumers of this clock to
fail probing. Fix this by always programming the PLL with a sane rate,
which allows it to lock, at startup.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Lucas Stach 9 năm trước cách đây
mục cha
commit
a02cc84a31
1 tập tin đã thay đổi với 1 bổ sung0 xóa
  1. 1 0
      drivers/clk/tegra/clk-tegra30.c

+ 1 - 0
drivers/clk/tegra/clk-tegra30.c

@@ -1372,6 +1372,7 @@ static struct tegra_clk_init_table init_table[] __initdata = {
 	{ TEGRA30_CLK_SBC4, TEGRA30_CLK_PLL_P, 100000000, 0 },
 	{ TEGRA30_CLK_SBC5, TEGRA30_CLK_PLL_P, 100000000, 0 },
 	{ TEGRA30_CLK_SBC6, TEGRA30_CLK_PLL_P, 100000000, 0 },
+	{ TEGRA30_CLK_PLL_C, TEGRA30_CLK_CLK_MAX, 600000000, 0 },
 	{ TEGRA30_CLK_HOST1X, TEGRA30_CLK_PLL_C, 150000000, 0 },
 	{ TEGRA30_CLK_DISP1, TEGRA30_CLK_PLL_P, 600000000, 0 },
 	{ TEGRA30_CLK_DISP2, TEGRA30_CLK_PLL_P, 600000000, 0 },