diff options
| author | Martin Blumenstingl | 2021-07-14 01:25:06 +0200 |
|---|---|---|
| committer | Jerome Brunet | 2021-09-23 11:46:37 +0200 |
| commit | 9e544b75b20f7e9e7767acc11b46fd38b4989eb4 (patch) | |
| tree | b296b744bbefc2ad52ab12e7fcf3a7a48156aba9 | |
| parent | 1792bdac34a7bc79c2086508b3a1644db2088fbc (diff) | |
clk: meson: meson8b: Add the vid_pll_lvds_en gate clock
HHI_VID_DIVIDER_CNTL[11] must be enabled for the video clock tree to
work. This bit is described as "LVDS_CLK_EN". It is not 100% clear where
this bit has to be placed in the hierarchy. But since the "LVDS_OUT" of
the HDMI PLL uses it's own set of registers it's more likely that this
"LVDS_CLK_EN" bit actually enables the input of the "hdmi_pll_lvds_out"
clock to the "vid_pll_in_sel" tree.
Add a gate definition for this bit (which will not be exported) so that
the kernel can manage all required bits to enable and disable the video
clocks.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20210713232510.3057750-3-martin.blumenstingl@googlemail.com
| -rw-r--r-- | drivers/clk/meson/meson8b.c | 23 | ||||
| -rw-r--r-- | drivers/clk/meson/meson8b.h | 3 |
2 files changed, 24 insertions, 2 deletions
diff --git a/drivers/clk/meson/meson8b.c b/drivers/clk/meson/meson8b.c index 0f8bd707217a..9ccffbfe44e5 100644 --- a/drivers/clk/meson/meson8b.c +++ b/drivers/clk/meson/meson8b.c @@ -1045,6 +1045,23 @@ static struct clk_regmap meson8b_l2_dram_clk_gate = { }, }; +/* also called LVDS_CLK_EN */ +static struct clk_regmap meson8b_vid_pll_lvds_en = { + .data = &(struct clk_regmap_gate_data){ + .offset = HHI_VID_DIVIDER_CNTL, + .bit_idx = 11, + }, + .hw.init = &(struct clk_init_data){ + .name = "vid_pll_lvds_en", + .ops = &clk_regmap_gate_ro_ops, + .parent_hws = (const struct clk_hw *[]) { + &meson8b_hdmi_pll_lvds_out.hw + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + static struct clk_regmap meson8b_vid_pll_in_sel = { .data = &(struct clk_regmap_mux_data){ .offset = HHI_VID_DIVIDER_CNTL, @@ -1061,7 +1078,7 @@ static struct clk_regmap meson8b_vid_pll_in_sel = { * Meson8m2: vid2_pll */ .parent_hws = (const struct clk_hw *[]) { - &meson8b_hdmi_pll_lvds_out.hw + &meson8b_vid_pll_lvds_en.hw }, .num_parents = 1, .flags = CLK_SET_RATE_PARENT, @@ -2905,6 +2922,7 @@ static struct clk_hw_onecell_data meson8_hw_onecell_data = { [CLKID_CTS_MCLK_I958_DIV] = &meson8b_cts_mclk_i958_div.hw, [CLKID_CTS_MCLK_I958] = &meson8b_cts_mclk_i958.hw, [CLKID_CTS_I958] = &meson8b_cts_i958.hw, + [CLKID_VID_PLL_LVDS_EN] = &meson8b_vid_pll_lvds_en.hw, [CLK_NR_CLKS] = NULL, }, .num = CLK_NR_CLKS, @@ -3122,6 +3140,7 @@ static struct clk_hw_onecell_data meson8b_hw_onecell_data = { [CLKID_CTS_MCLK_I958_DIV] = &meson8b_cts_mclk_i958_div.hw, [CLKID_CTS_MCLK_I958] = &meson8b_cts_mclk_i958.hw, [CLKID_CTS_I958] = &meson8b_cts_i958.hw, + [CLKID_VID_PLL_LVDS_EN] = &meson8b_vid_pll_lvds_en.hw, [CLK_NR_CLKS] = NULL, }, .num = CLK_NR_CLKS, @@ -3341,6 +3360,7 @@ static struct clk_hw_onecell_data meson8m2_hw_onecell_data = { [CLKID_CTS_MCLK_I958_DIV] = &meson8b_cts_mclk_i958_div.hw, [CLKID_CTS_MCLK_I958] = &meson8b_cts_mclk_i958.hw, [CLKID_CTS_I958] = &meson8b_cts_i958.hw, + [CLKID_VID_PLL_LVDS_EN] = &meson8b_vid_pll_lvds_en.hw, [CLK_NR_CLKS] = NULL, }, .num = CLK_NR_CLKS, @@ -3539,6 +3559,7 @@ static struct clk_regmap *const meson8b_clk_regmaps[] = { &meson8b_cts_mclk_i958_div, &meson8b_cts_mclk_i958, &meson8b_cts_i958, + &meson8b_vid_pll_lvds_en, }; static const struct meson8b_clk_reset_line { diff --git a/drivers/clk/meson/meson8b.h b/drivers/clk/meson/meson8b.h index c764143e2617..b90c21bbd907 100644 --- a/drivers/clk/meson/meson8b.h +++ b/drivers/clk/meson/meson8b.h @@ -172,8 +172,9 @@ #define CLKID_CTS_MCLK_I958_DIV 211 #define CLKID_VCLK_EN 214 #define CLKID_VCLK2_EN 215 +#define CLKID_VID_PLL_LVDS_EN 216 -#define CLK_NR_CLKS 216 +#define CLK_NR_CLKS 217 /* * include the CLKID and RESETID that have |