diff options
Diffstat (limited to 'target/linux/ipq807x/patches-5.15/0039-v6.1-clk-qcom-apss-ipq6018-fix-apcs_alias0_clk_src.patch')
| -rw-r--r-- | target/linux/ipq807x/patches-5.15/0039-v6.1-clk-qcom-apss-ipq6018-fix-apcs_alias0_clk_src.patch | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/target/linux/ipq807x/patches-5.15/0039-v6.1-clk-qcom-apss-ipq6018-fix-apcs_alias0_clk_src.patch b/target/linux/ipq807x/patches-5.15/0039-v6.1-clk-qcom-apss-ipq6018-fix-apcs_alias0_clk_src.patch new file mode 100644 index 0000000000..c279e2804e --- /dev/null +++ b/target/linux/ipq807x/patches-5.15/0039-v6.1-clk-qcom-apss-ipq6018-fix-apcs_alias0_clk_src.patch @@ -0,0 +1,63 @@ +From 6b9d5ecd2913758780a0529f9b95392f330b721b Mon Sep 17 00:00:00 2001 +From: Robert Marko <robimarko@gmail.com> +Date: Fri, 19 Aug 2022 00:06:21 +0200 +Subject: [PATCH] clk: qcom: apss-ipq6018: fix apcs_alias0_clk_src + +While working on IPQ8074 APSS driver it was discovered that IPQ6018 and +IPQ8074 use almost the same PLL and APSS clocks, however APSS driver is +currently broken. + +More precisely apcs_alias0_clk_src is broken, it was added as regmap_mux +clock. +However after debugging why it was always stuck at 800Mhz, it was figured +out that its not regmap_mux compatible at all. +It is a simple mux but it uses RCG2 register layout and control bits, so +utilize the new clk_rcg2_mux_closest_ops to correctly drive it while not +having to provide a dummy frequency table. + +While we are here, use ARRAY_SIZE for number of parents. + +Tested on IPQ6018-CP01-C1 reference board and multiple IPQ8074 boards. + +Fixes: 5e77b4ef1b19 ("clk: qcom: Add ipq6018 apss clock controller") +Signed-off-by: Robert Marko <robimarko@gmail.com> +Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> +Signed-off-by: Bjorn Andersson <andersson@kernel.org> +Link: https://lore.kernel.org/r/20220818220628.339366-2-robimarko@gmail.com +--- + drivers/clk/qcom/apss-ipq6018.c | 13 ++++++------- + 1 file changed, 6 insertions(+), 7 deletions(-) + +--- a/drivers/clk/qcom/apss-ipq6018.c ++++ b/drivers/clk/qcom/apss-ipq6018.c +@@ -16,7 +16,7 @@ + #include "clk-regmap.h" + #include "clk-branch.h" + #include "clk-alpha-pll.h" +-#include "clk-regmap-mux.h" ++#include "clk-rcg.h" + + enum { + P_XO, +@@ -33,16 +33,15 @@ static const struct parent_map parents_a + { P_APSS_PLL_EARLY, 5 }, + }; + +-static struct clk_regmap_mux apcs_alias0_clk_src = { +- .reg = 0x0050, +- .width = 3, +- .shift = 7, ++static struct clk_rcg2 apcs_alias0_clk_src = { ++ .cmd_rcgr = 0x0050, ++ .hid_width = 5, + .parent_map = parents_apcs_alias0_clk_src_map, + .clkr.hw.init = &(struct clk_init_data){ + .name = "apcs_alias0_clk_src", + .parent_data = parents_apcs_alias0_clk_src, +- .num_parents = 2, +- .ops = &clk_regmap_mux_closest_ops, ++ .num_parents = ARRAY_SIZE(parents_apcs_alias0_clk_src), ++ .ops = &clk_rcg2_mux_closest_ops, + .flags = CLK_SET_RATE_PARENT, + }, + }; |