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author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-12-14 09:43:25 +0100 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-12-14 10:24:28 +0100 |
commit | 99b03ca651f1c409d296d6c6e9440d9b005c722f (patch) | |
tree | 8773b8cbab631258b561ddb3d9b219072095bee4 /drivers/clk/qcom/clk-alpha-pll.c | |
parent | 211b4dbc070090b4183d6f9db7dd3bd4e6170447 (diff) | |
parent | 2585cf9dfaaddf00b069673f27bb3f8530e2039c (diff) | |
download | linux-99b03ca651f1c409d296d6c6e9440d9b005c722f.tar.bz2 |
Merge v5.16-rc5 into drm-next
Thomas Zimmermann requested a fixes backmerge, specifically also for
96c5f82ef0a1 ("drm/vc4: fix error code in vc4_create_object()")
Just a bunch of adjacent changes conflicts, even the big pile of them
in vc4.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/clk/qcom/clk-alpha-pll.c')
-rw-r--r-- | drivers/clk/qcom/clk-alpha-pll.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c index eaedcceb766f..8f65b9bdafce 100644 --- a/drivers/clk/qcom/clk-alpha-pll.c +++ b/drivers/clk/qcom/clk-alpha-pll.c @@ -1429,6 +1429,15 @@ EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_fabia_ops); void clk_trion_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, const struct alpha_pll_config *config) { + /* + * If the bootloader left the PLL enabled it's likely that there are + * RCGs that will lock up if we disable the PLL below. + */ + if (trion_pll_is_enabled(pll, regmap)) { + pr_debug("Trion PLL is already enabled, skipping configuration\n"); + return; + } + clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l); regmap_write(regmap, PLL_CAL_L_VAL(pll), TRION_PLL_CAL_VAL); clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha); |