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| author | John Crispin <john@openwrt.org> | 2015-05-23 15:27:45 +0000 |
|---|---|---|
| committer | John Crispin <john@openwrt.org> | 2015-05-23 15:27:45 +0000 |
| commit | f74477de486705612bc4d2eaf80dfd92c9015a24 (patch) | |
| tree | 462b2c056f556868ac06563311ff59a6a8830a55 /target/linux/ipq806x/patches-4.0 | |
| parent | 1c6d332d8ff292e4d8de21c339ce001020c2ed27 (diff) | |
| download | upstream-f74477de486705612bc4d2eaf80dfd92c9015a24.tar.gz upstream-f74477de486705612bc4d2eaf80dfd92c9015a24.tar.bz2 upstream-f74477de486705612bc4d2eaf80dfd92c9015a24.zip | |
ipq806x: disable i2c device on gsbi4
Patch cherry-picked from the following location:
https://chromium-review.googlesource.com/#/c/269931/
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>
SVN-Revision: 45728
Diffstat (limited to 'target/linux/ipq806x/patches-4.0')
3 files changed, 56 insertions, 3 deletions
diff --git a/target/linux/ipq806x/patches-4.0/023-ARM-dts-ipq806x-Disable-i2c-device-on-gsbi4.patch b/target/linux/ipq806x/patches-4.0/023-ARM-dts-ipq806x-Disable-i2c-device-on-gsbi4.patch new file mode 100644 index 0000000000..75595cacf6 --- /dev/null +++ b/target/linux/ipq806x/patches-4.0/023-ARM-dts-ipq806x-Disable-i2c-device-on-gsbi4.patch @@ -0,0 +1,53 @@ +--- a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts ++++ b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts +@@ -46,15 +46,12 @@ + serial@16340000 { + status = "ok"; + }; +- +- i2c4: i2c@16380000 { +- status = "ok"; +- +- clock-frequency = <200000>; +- +- pinctrl-0 = <&i2c4_pins>; +- pinctrl-names = "default"; +- }; ++ /* ++ * The i2c device on gsbi4 should not be enabled. ++ * On ipq806x designs gsbi4 i2c is meant for exclusive ++ * RPM usage. Turning this on in kernel manifests as ++ * i2c failure for the RPM. ++ */ + }; + + gsbi5: gsbi@1a200000 { +--- a/drivers/clk/qcom/gcc-ipq806x.c ++++ b/drivers/clk/qcom/gcc-ipq806x.c +@@ -805,7 +805,7 @@ static struct clk_rcg gsbi7_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, + }, + }, + }; +@@ -821,7 +821,7 @@ static struct clk_branch gsbi7_qup_clk = + .parent_names = (const char *[]){ "gsbi7_qup_src" }, + .num_parents = 1, + .ops = &clk_branch_ops, +- .flags = CLK_SET_RATE_PARENT, ++ .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + }, + }, + }; +@@ -869,7 +869,7 @@ static struct clk_branch gsbi4_h_clk = { + .hw.init = &(struct clk_init_data){ + .name = "gsbi4_h_clk", + .ops = &clk_branch_ops, +- .flags = CLK_IS_ROOT, ++ .flags = CLK_IS_ROOT | CLK_IGNORE_UNUSED, + }, + }, + }; diff --git a/target/linux/ipq806x/patches-4.0/112-ARM-dts-qcom-add-pcie-nodes-to-ipq806x-platforms.patch b/target/linux/ipq806x/patches-4.0/112-ARM-dts-qcom-add-pcie-nodes-to-ipq806x-platforms.patch index 593bc32790..90095758f2 100644 --- a/target/linux/ipq806x/patches-4.0/112-ARM-dts-qcom-add-pcie-nodes-to-ipq806x-platforms.patch +++ b/target/linux/ipq806x/patches-4.0/112-ARM-dts-qcom-add-pcie-nodes-to-ipq806x-platforms.patch @@ -38,7 +38,7 @@ Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> spi_pins: spi_pins { mux { pins = "gpio18", "gpio19", "gpio21"; -@@ -112,5 +128,19 @@ +@@ -109,5 +125,19 @@ sata@29000000 { status = "ok"; }; diff --git a/target/linux/ipq806x/patches-4.0/700-add-gmac-dts-suport.patch b/target/linux/ipq806x/patches-4.0/700-add-gmac-dts-suport.patch index 16defd135d..b5643dfd17 100644 --- a/target/linux/ipq806x/patches-4.0/700-add-gmac-dts-suport.patch +++ b/target/linux/ipq806x/patches-4.0/700-add-gmac-dts-suport.patch @@ -42,7 +42,7 @@ }; gsbi@16300000 { -@@ -92,6 +118,7 @@ +@@ -89,6 +115,7 @@ #size-cells = <1>; spi-max-frequency = <50000000>; reg = <0>; @@ -50,7 +50,7 @@ partition@0 { label = "lowlevel_init"; -@@ -142,5 +169,66 @@ +@@ -139,5 +166,66 @@ pinctrl-0 = <&pcie2_pins>; pinctrl-names = "default"; }; |