linux-kernel - [PATCH v1 11/13] mfd: intel-lpss: Pass HSUART configuration via properties

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Date:	Tue, 24 Nov 2015 12:22:57 +0200
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
	linux-i2c@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, Lee Jones <lee.jones@...aro.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Kevin Fenzi <kevin@...ye.com>, Arnd Bergmann <arnd@...db.de>,
	Wolfram Sang <wsa@...-dreams.de>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 11/13] mfd: intel-lpss: Pass HSUART configuration via properties

From: Mika Westerberg <mika.westerberg@...ux.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.westerberg@...ux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.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 5bfdfcc..74f0d6d 100644
--- a/drivers/mfd/intel-lpss-pci.c
+++ b/drivers/mfd/intel-lpss-pci.c
@@ -65,9 +65,21 @@ static const struct intel_lpss_platform_info spt_info = {
 	.clk_rate = 120000000,
 };
 
+static struct property_entry uart_properties[] = {
+	PROPERTY_ENTRY_U32("reg-io-width", 4),
+	PROPERTY_ENTRY_U32("reg-shift", 2),
+	PROPERTY_ENTRY_U8("snps,uart-16550-compatible", 1),
+	{ },
+};
+
+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 = {
@@ -77,6 +89,7 @@ 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 = {
-- 
2.6.2

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