Using the new early device registration functionality it is now possible
to register devices much earlier in the boot process. Move the call to
of_platform_populate() from tegra_dt_init() to tegra_dt_init_irq() and
allow drivers that require to be run early to access the struct device
associated with a device node.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
arch/arm/mach-tegra/common.c | 33 +++++++++++++++++++++++++++++++++
arch/arm/mach-tegra/tegra.c | 32 --------------------------------
2 files changed, 33 insertions(+), 32 deletions(-)
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 94a119a..24dc09b 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -25,6 +25,9 @@
#include <linux/reboot.h>
#include <linux/irqchip.h>
#include <linux/clk-provider.h>
+#include <linux/sys_soc.h>
+#include <linux/slab.h>
+#include <linux/of_platform.h>
#include <asm/hardware/cache-l2x0.h>
@@ -61,6 +64,36 @@ u32 tegra_uart_config[4] = {
#ifdef CONFIG_OF
void __init tegra_dt_init_irq(void)
{
+ struct soc_device_attribute *soc_dev_attr;
+ struct soc_device *soc_dev;
+ struct device *parent = NULL;
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ goto out;
+
+ soc_dev_attr->family = kasprintf(GFP_KERNEL, "Tegra");
+ soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%d", tegra_revision);
+ soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%d", tegra_chip_id);
+
+ soc_dev = soc_device_register(soc_dev_attr);
+ if (IS_ERR(soc_dev)) {
+ kfree(soc_dev_attr->family);
+ kfree(soc_dev_attr->revision);
+ kfree(soc_dev_attr->soc_id);
+ kfree(soc_dev_attr);
+ goto out;
+ }
+
+ parent = soc_device_to_device(soc_dev);
+
+ /*
+ * Finished with the static registrations now; fill in the missing
+ * devices
+ */
+out:
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
+
of_clk_init(NULL);
tegra_pmc_init();
tegra_init_irq();
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index 5b86055..9abb71e 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -27,11 +27,9 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_fdt.h>
-#include <linux/of_platform.h>
#include <linux/pda_power.h>
#include <linux/io.h>
#include <linux/slab.h>
-#include <linux/sys_soc.h>
#include <linux/usb/tegra_usb_phy.h>
#include <linux/clk/tegra.h>
@@ -47,37 +45,7 @@
static void __init tegra_dt_init(void)
{
- struct soc_device_attribute *soc_dev_attr;
- struct soc_device *soc_dev;
- struct device *parent = NULL;
-
tegra_clocks_apply_init_table();
-
- soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
- if (!soc_dev_attr)
- goto out;
-
- soc_dev_attr->family = kasprintf(GFP_KERNEL, "Tegra");
- soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%d", tegra_revision);
- soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%d", tegra_chip_id);
-
- soc_dev = soc_device_register(soc_dev_attr);
- if (IS_ERR(soc_dev)) {
- kfree(soc_dev_attr->family);
- kfree(soc_dev_attr->revision);
- kfree(soc_dev_attr->soc_id);
- kfree(soc_dev_attr);
- goto out;
- }
-
- parent = soc_device_to_device(soc_dev);
-
- /*
- * Finished with the static registrations now; fill in the missing
- * devices
- */
-out:
- of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
}
static void __init paz00_init(void)
--
1.8.3.4
--
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