diff options
| author | Jerome Brunet <jbrunet@baylibre.com> | 2018-01-19 16:42:36 +0100 |
|---|---|---|
| committer | Jerome Brunet <jbrunet@baylibre.com> | 2018-02-12 09:49:23 +0100 |
| commit | 6c00e7b76021fcf4ddb64191ccdf62c722adf0d1 (patch) | |
| tree | 783c5d881ed9d73acbf63fb44eebc6bca9bd4b97 /drivers/clk/meson/axg.c | |
| parent | 2fa9b361e500a0e092a9525afbd6a3a363ffa5f0 (diff) | |
| download | linux-6c00e7b76021fcf4ddb64191ccdf62c722adf0d1.tar.bz2 | |
clk: meson: add axg misc bit to the mpll driver
On axg, the rate of the mpll is stuck as if sdm value was 4 and could not
change (expect for mpll2 strangely). Looking at the vendor kernel, it
turns out a new magic bit from the undocumented HHI_PLL_TOP_MISC register
is required.
Setting this bit solves the problem and the mpll rates are back to normal
Fixes: 78b4af312f91 ("clk: meson-axg: add clock controller drivers")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Diffstat (limited to 'drivers/clk/meson/axg.c')
| -rw-r--r-- | drivers/clk/meson/axg.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/clk/meson/axg.c b/drivers/clk/meson/axg.c index 455d4d8962bb..2dc70e0e925c 100644 --- a/drivers/clk/meson/axg.c +++ b/drivers/clk/meson/axg.c @@ -292,6 +292,11 @@ static struct meson_clk_mpll axg_mpll0 = { .shift = 25, .width = 1, }, + .misc = { + .reg_off = HHI_PLL_TOP_MISC, + .shift = 0, + .width = 1, + }, .lock = &meson_clk_lock, .hw.init = &(struct clk_init_data){ .name = "mpll0", @@ -322,6 +327,11 @@ static struct meson_clk_mpll axg_mpll1 = { .shift = 14, .width = 1, }, + .misc = { + .reg_off = HHI_PLL_TOP_MISC, + .shift = 1, + .width = 1, + }, .lock = &meson_clk_lock, .hw.init = &(struct clk_init_data){ .name = "mpll1", @@ -352,6 +362,11 @@ static struct meson_clk_mpll axg_mpll2 = { .shift = 14, .width = 1, }, + .misc = { + .reg_off = HHI_PLL_TOP_MISC, + .shift = 2, + .width = 1, + }, .lock = &meson_clk_lock, .hw.init = &(struct clk_init_data){ .name = "mpll2", @@ -382,6 +397,11 @@ static struct meson_clk_mpll axg_mpll3 = { .shift = 0, .width = 1, }, + .misc = { + .reg_off = HHI_PLL_TOP_MISC, + .shift = 3, + .width = 1, + }, .lock = &meson_clk_lock, .hw.init = &(struct clk_init_data){ .name = "mpll3", |