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authorChew, Chiau Ee <chiau.ee.chew@intel.com>2014-02-18 22:24:29 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-02-19 04:00:33 +0400
commite1c7481797542f4d2039d5a458ef80603298ad78 (patch)
tree51c61fcc9697bb03b180acd5c094831f758177f4 /drivers/acpi
parent6d0abeca3242a88cab8232e4acd7e2bf088f3bc2 (diff)
downloadlinux-e1c7481797542f4d2039d5a458ef80603298ad78.tar.xz
ACPI / LPSS: Add Intel BayTrail ACPI mode PWM
Intel BayTrail LPSS consists of two PWM controllers which can be enumerated from ACPI namespace. This change will cause platform device objects to be created for Intel BayTrail PWM controllers which will allow the pwm-lpss driver to bind to them and handle those devices. Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/acpi_lpss.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 6745fe137b9e..8c2bae980faf 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -102,6 +102,16 @@ static struct lpss_device_desc lpt_sdio_dev_desc = {
.ltr_required = true,
};
+static struct lpss_shared_clock pwm_clock = {
+ .name = "pwm_clk",
+ .rate = 25000000,
+};
+
+static struct lpss_device_desc byt_pwm_dev_desc = {
+ .clk_required = true,
+ .shared_clock = &pwm_clock,
+};
+
static struct lpss_shared_clock uart_clock = {
.name = "uart_clk",
.rate = 44236800,
@@ -157,6 +167,7 @@ static const struct acpi_device_id acpi_lpss_device_ids[] = {
{ "INT33C7", },
/* BayTrail LPSS devices */
+ { "80860F09", (unsigned long)&byt_pwm_dev_desc },
{ "80860F0A", (unsigned long)&byt_uart_dev_desc },
{ "80860F0E", (unsigned long)&byt_spi_dev_desc },
{ "80860F14", (unsigned long)&byt_sdio_dev_desc },