UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ARM: OMAP2+: Enable ti-sysc to use device tree data for smartreflex 

Let's enable ti-sysc probing of child devices. So far we have only used
ti-sysc to probe interconnect target modules to idle them for cases where
the SoC does not have any child devices configured for the module, such
as smartreflex on dra7.

As we have smartreflex driver configured in the device tree for some SoCs,
we need to flip things on with a single patch to prevent both omap_device
and ti-sysc to probe smartreflex. So let's stop probing smartreflex with
omap_device and probe it with ti-sysc by enabling passing the auxdata.

Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2018-02-22 14:05:31 -08:00
parent 2ad1ec0d2f
commit 695eea3d2c
3 changed files with 20 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arm/mach-omap2/omap_device.c
View File

@ -140,6 +140,7 @@ static int omap_device_build_from_dt(struct platform_device *pdev)
struct omap_device *od;
struct omap_hwmod *oh;
struct device_node *node = pdev->dev.of_node;
struct resource res;
const char *oh_name;
int oh_cnt, i, ret = 0;
bool device_active = false;
@ -150,6 +151,10 @@ static int omap_device_build_from_dt(struct platform_device *pdev)
return -ENODEV;
}
/* Use ti-sysc driver instead of omap_device? */
if (!omap_hwmod_parse_module_range(NULL, node, &res))
return -ENODEV;
hwmods = kzalloc(sizeof(struct omap_hwmod *) * oh_cnt, GFP_KERNEL);
if (!hwmods) {
ret = -ENOMEM;

1
arch/arm/mach-omap2/pdata-quirks.c
View File

@ -487,6 +487,7 @@ static struct of_dev_auxdata omap_auxdata_lookup[];
static struct ti_sysc_platform_data ti_sysc_pdata = {
.auxdata = omap_auxdata_lookup,
.init_module = omap_hwmod_init_module,
.enable_module = ti_sysc_enable_module,
.idle_module = ti_sysc_idle_module,
.shutdown_module = ti_sysc_shutdown_module,

25
arch/arm/mach-omap2/sr_device.c
View File

@ -93,16 +93,23 @@ extern struct omap_sr_data omap_sr_pdata[];
static int __init sr_dev_init(struct omap_hwmod *oh, void *user)
{
struct omap_sr_data *sr_data;
struct platform_device *pdev;
struct omap_sr_data *sr_data = NULL;
struct omap_volt_data *volt_data;
struct omap_smartreflex_dev_attr *sr_dev_attr;
char *name = "smartreflex";
static int i;
sr_data = kzalloc(sizeof(*sr_data), GFP_KERNEL);
if (!sr_data)
return -ENOMEM;
if (!strncmp(oh->name, "smartreflex_mpu_iva", 20) ||
!strncmp(oh->name, "smartreflex_mpu", 16))
sr_data = &omap_sr_pdata[OMAP_SR_MPU];
else if (!strncmp(oh->name, "smartreflex_core", 17))
sr_data = &omap_sr_pdata[OMAP_SR_CORE];
else if (!strncmp(oh->name, "smartreflex_iva", 16))
sr_data = &omap_sr_pdata[OMAP_SR_IVA];
if (!sr_data) {
pr_err("%s: Unknown instance %s\n", __func__, oh->name);
return -EINVAL;
}
sr_dev_attr = (struct omap_smartreflex_dev_attr *)oh->dev_attr;
if (!sr_dev_attr || !sr_dev_attr->sensor_voltdm_name) {
@ -147,13 +154,9 @@ static int __init sr_dev_init(struct omap_hwmod *oh, void *user)
sr_data->enable_on_init = sr_enable_on_init;
pdev = omap_device_build(name, i, oh, sr_data, sizeof(*sr_data));
if (IS_ERR(pdev))
pr_warn("%s: Could not build omap_device for %s: %s\n",
__func__, name, oh->name);
exit:
i++;
kfree(sr_data);
return 0;
}