From: Andy Shevchenko <andriy.shevche...@linux.intel.com>
The HS-UART host controller driver needs to know certain properties like
width of the register set if it cannot get that information from ACPI or
DT. In order to support non-ACPI systems we pass this information to the
driver via device properties.
Signed-off-by: Mika Westerberg <mika.westerb...@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
(cherry picked from commit ec14c5395dfbc1d40a49c9f19d2bfde6739d89d5)
Signed-off-by: Voon, Weifeng <weifeng.v...@intel.com>
---
drivers/mfd/intel-lpss-pci.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/mfd/intel-lpss-pci.c b/drivers/mfd/intel-lpss-pci.c
index a677480..a7136c7 100644
--- a/drivers/mfd/intel-lpss-pci.c
+++ b/drivers/mfd/intel-lpss-pci.c
@@ -80,9 +80,21 @@ static const struct intel_lpss_platform_info spt_i2c_info = {
.pset = &spt_i2c_pset,
};
+static struct property_entry uart_properties[] = {
+ PROPERTY_ENTRY_U32("reg-io-width", 4),
+ PROPERTY_ENTRY_U32("reg-shift", 2),
+ PROPERTY_ENTRY_BOOL("snps,uart-16550-compatible"),
+ { },
+};
+
+static struct property_set uart_pset = {
+ .properties = uart_properties,
+};
+
static const struct intel_lpss_platform_info spt_uart_info = {
.clk_rate = 120000000,
.clk_con_id = "baudclk",
+ .pset = &uart_pset,
};
static const struct intel_lpss_platform_info bxt_info = {
@@ -92,6 +104,7 @@ static const struct intel_lpss_platform_info bxt_info = {
static const struct intel_lpss_platform_info bxt_uart_info = {
.clk_rate = 100000000,
.clk_con_id = "baudclk",
+ .pset = &uart_pset,
};
static const struct intel_lpss_platform_info bxt_i2c_info = {
--
1.9.1
--
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