[linux-yocto] [PATCH 21/29] ACPI / LPSS: Add BYT ACPI mode PWM
rebecca.swee.fun.chang at intel.com
rebecca.swee.fun.chang at intel.com
Mon Apr 7 08:18:12 PDT 2014
From: "Chew, Chiau Ee" <chiau.ee.chew at intel.com>
Intel BayTrail LPSS includes two PWM controllers which can
be enumerated from ACPI namespace.
Signed-off-by: Chew, Chiau Ee <chiau.ee.chew at intel.com>
Signed-off-by: Maurice Petallo <mauricex.r.petallo at intel.com>
---
drivers/acpi/acpi_lpss.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 6745fe1..8c2bae9 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 },
--
1.7.10.4
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