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Subject[PATCH] ARM: qcom: Disable i2c device on gsbi4 for ipq806x
Date
Disable the i2c device on gsbi4 and mark gsbi4_h and gsbi4_qup clks as
unused. If they are enabled, clock framework will turn them off at end
of probe. On ipq806x by design gsbi4_qup, gsbi4_h clks and i2c on gsbi4
are meant for RPM usage. So turning them off in kernel is incorrect.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
arch/arm/boot/dts/qcom-ipq8064-ap148.dts | 9 ---------
drivers/clk/qcom/gcc-ipq806x.c | 5 +++--
2 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
index 554c65e7aa0e..580aec63030d 100644
--- a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
+++ b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
@@ -21,14 +21,5 @@ mux {
};
};
};
-
- gsbi@16300000 {
- i2c@16380000 {
- status = "ok";
- clock-frequency = <200000>;
- pinctrl-0 = <&i2c4_pins>;
- pinctrl-names = "default";
- };
- };
};
};
diff --git a/drivers/clk/qcom/gcc-ipq806x.c b/drivers/clk/qcom/gcc-ipq806x.c
index b0eee0903807..75706807e6cf 100644
--- a/drivers/clk/qcom/gcc-ipq806x.c
+++ b/drivers/clk/qcom/gcc-ipq806x.c
@@ -782,7 +782,7 @@ static struct clk_rcg gsbi4_qup_src = {
.parent_names = gcc_pxo_pll8,
.num_parents = 2,
.ops = &clk_rcg_ops,
- .flags = CLK_SET_PARENT_GATE,
+ .flags = CLK_SET_PARENT_GATE | CLK_IGNORE_UNUSED,
},
},
};
@@ -798,7 +798,7 @@ static struct clk_branch gsbi4_qup_clk = {
.parent_names = (const char *[]){ "gsbi4_qup_src" },
.num_parents = 1,
.ops = &clk_branch_ops,
- .flags = CLK_SET_RATE_PARENT,
+ .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED,
},
},
};
@@ -991,6 +991,7 @@ static struct clk_branch gsbi4_h_clk = {
.hw.init = &(struct clk_init_data){
.name = "gsbi4_h_clk",
.ops = &clk_branch_ops,
+ .flags = CLK_IGNORE_UNUSED,
},
},
};
--
2.25.0
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