ARM: tegra210: set initial io dpd state from DT

Set initial IO pad DPD state from DT instead of setting
it from board files. IO PAD DPD configuration is supported from
DT.

bug 1648039

Change-Id: I89b553f9edcf42e24c4ac2e3b4896bafec52d593
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
(cherry picked from commit 92873ee4a3e1f24a9c9765c87d1243058ca22a46)
Reviewed-on: http://git-master/r/754577

diff --git a/arch/arm64/boot/dts/tegra210-common.dtsi b/arch/arm64/boot/dts/tegra210-common.dtsi
index dd4177207f091d51ec5c781e9ad9c893bf22982e..9328ec67051a0297c46ea2282e72fde07faf8e95 100644 (file)
--- a/arch/arm64/boot/dts/tegra210-common.dtsi
+++ b/arch/arm64/boot/dts/tegra210-common.dtsi
@@ -44,6 +44,22 @@
                status = "okay";
        };
 
+       pmc@7000e400 {
+               io-pad-defaults {
+                       pex-bias {
+                               nvidia,deep-power-down-enable;
+                       };
+
+                       pex-clk1 {
+                               nvidia,deep-power-down-enable;
+                       };
+
+                       pex-clk2 {
+                               nvidia,deep-power-down-enable;
+                       };
+               };
+       };
+
        extcon {
                id_gpio_extcon: extcon@0 {
                        compatible = "extcon-gpio";

diff --git a/arch/arm64/boot/dts/tegra210-hawkeye-p2290-common.dtsi b/arch/arm64/boot/dts/tegra210-hawkeye-p2290-common.dtsi
index 2afcda4dc98dbc8ac7573ae208f641dac91d7d56..cadabd5563482ca567b848634646234837160831 100644 (file)
--- a/arch/arm64/boot/dts/tegra210-hawkeye-p2290-common.dtsi
+++ b/arch/arm64/boot/dts/tegra210-hawkeye-p2290-common.dtsi
@@ -678,6 +678,17 @@
        pmc@7000e400 {
                nvidia,invert-interrupt;
                io-pad-defaults {
+                       pex-bias {
+                               nvidia,deep-power-down-enable;
+                       };
+
+                       pex-clk1 {
+                               nvidia,deep-power-down-enable;
+                       };
+
+                       pex-clk2 {
+                               nvidia,deep-power-down-enable;
+                       };
                        audio-hv {
                                nvidia,io-pad-init-voltage = <IO_PAD_VOLTAGE_1_8V>;
                        };

diff --git a/arch/arm64/mach-tegra/board-t210ref.c b/arch/arm64/mach-tegra/board-t210ref.c
index af9eed7b1373b103c1e0e0d0e128f5b0333c4c61..a212865c86941fa2a5d09822b26eb58f8e9da694 100644 (file)
--- a/arch/arm64/mach-tegra/board-t210ref.c
+++ b/arch/arm64/mach-tegra/board-t210ref.c
@@ -227,22 +227,6 @@ static void __init tegra_t210ref_early_init(void)
                tegra_soc_device_init("odin");
 }
 
-static struct tegra_io_dpd pexbias_io = {
-       .name                   = "PEX_BIAS",
-       .io_dpd_reg_index       = 0,
-       .io_dpd_bit             = 4,
-};
-static struct tegra_io_dpd pexclk1_io = {
-       .name                   = "PEX_CLK1",
-       .io_dpd_reg_index       = 0,
-       .io_dpd_bit             = 5,
-};
-static struct tegra_io_dpd pexclk2_io = {
-       .name                   = "PEX_CLK2",
-       .io_dpd_reg_index       = 0,
-       .io_dpd_bit             = 6,
-};
-
 static struct tegra_suspend_platform_data t210ref_suspend_data = {
        .cpu_timer      = 1700,
        .cpu_off_timer  = 300,
@@ -279,10 +263,6 @@ static void __init tegra_t210ref_late_init(void)
        tegra_fb_copy_or_clear();
 
        /* put PEX pads into DPD mode to save additional power */
-       tegra_io_dpd_enable(&pexbias_io);
-       tegra_io_dpd_enable(&pexclk1_io);
-       tegra_io_dpd_enable(&pexclk2_io);
-
        t210ref_camera_init();
 }