diff options
Diffstat (limited to 'target/linux/mediatek/patches-4.4/0075-clk-mediatek-enable-critical-clocks.patch')
| -rw-r--r-- | target/linux/mediatek/patches-4.4/0075-clk-mediatek-enable-critical-clocks.patch | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.4/0075-clk-mediatek-enable-critical-clocks.patch b/target/linux/mediatek/patches-4.4/0075-clk-mediatek-enable-critical-clocks.patch new file mode 100644 index 0000000000..fe0c366c85 --- /dev/null +++ b/target/linux/mediatek/patches-4.4/0075-clk-mediatek-enable-critical-clocks.patch @@ -0,0 +1,74 @@ +From b7a101f53b7cb0e05658e04accf9fd12512b5735 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Thu, 31 Mar 2016 06:46:51 +0200 +Subject: [PATCH 75/78] clk: mediatek: enable critical clocks + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + drivers/clk/mediatek/clk-mt2701.c | 22 ++++++++++++++++++++-- + 1 file changed, 20 insertions(+), 2 deletions(-) + +diff --git a/drivers/clk/mediatek/clk-mt2701.c b/drivers/clk/mediatek/clk-mt2701.c +index 812b347..1634288 100644 +--- a/drivers/clk/mediatek/clk-mt2701.c ++++ b/drivers/clk/mediatek/clk-mt2701.c +@@ -573,6 +573,20 @@ static const struct mtk_gate top_clks[] __initconst = { + GATE_TOP_AUD(CLK_TOP_AUD_I2S6_MCLK, "aud_i2s6_mclk", "aud_k6_src_div", 28), + }; + ++static struct clk_onecell_data *mt7623_top_clk_data __initdata; ++static struct clk_onecell_data *mt7623_pll_clk_data __initdata; ++ ++static void __init mtk_clk_enable_critical(void) ++{ ++ if (!mt7623_top_clk_data || !mt7623_pll_clk_data) ++ return; ++ ++ clk_prepare_enable(mt7623_pll_clk_data->clks[CLK_APMIXED_ARMPLL]); ++ clk_prepare_enable(mt7623_top_clk_data->clks[CLK_TOP_MEM_SEL]); ++ clk_prepare_enable(mt7623_top_clk_data->clks[CLK_TOP_DDRPHYCFG_SEL]); ++ clk_prepare_enable(mt7623_top_clk_data->clks[CLK_TOP_RTC_SEL]); ++} ++ + static void __init mtk_topckgen_init(struct device_node *node) + { + struct clk_onecell_data *clk_data; +@@ -585,7 +599,7 @@ static void __init mtk_topckgen_init(struct device_node *node) + return; + } + +- clk_data = mtk_alloc_clk_data(CLK_TOP_NR); ++ mt7623_top_clk_data = clk_data = mtk_alloc_clk_data(CLK_TOP_NR); + + mtk_clk_register_fixed_clks(top_fixed_clks, ARRAY_SIZE(top_fixed_clks), + clk_data); +@@ -606,6 +620,8 @@ static void __init mtk_topckgen_init(struct device_node *node) + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); ++ ++ mtk_clk_enable_critical(); + } + CLK_OF_DECLARE(mtk_topckgen, "mediatek,mt2701-topckgen", mtk_topckgen_init); + +@@ -1202,7 +1218,7 @@ static void __init mtk_apmixedsys_init(struct device_node *node) + struct clk_onecell_data *clk_data; + int r; + +- clk_data = mtk_alloc_clk_data(ARRAY_SIZE(apmixed_plls)); ++ mt7623_pll_clk_data = clk_data = mtk_alloc_clk_data(ARRAY_SIZE(apmixed_plls)); + if (!clk_data) + return; + +@@ -1213,6 +1229,8 @@ static void __init mtk_apmixedsys_init(struct device_node *node) + if (r) + pr_err("%s(): could not register clock provider: %d\n", + __func__, r); ++ ++ mtk_clk_enable_critical(); + } + CLK_OF_DECLARE(mtk_apmixedsys, "mediatek,mt2701-apmixedsys", + mtk_apmixedsys_init); +-- +1.7.10.4 + |