diff mbox series

[RFC,v3,5/7] i2c: aspeed: switch to generic fw properties.

Message ID 20230531100600.13543-6-Jonathan.Cameron@huawei.com
State New
Headers show
Series i2c: Enabling use of aspeed-i2c with ACPI | expand

Commit Message

Jonathan Cameron May 31, 2023, 10:05 a.m. UTC
Moving over to generic firmware properties allows this driver to
get closer to working out of the box with both device tree and
other firmware options, such as ACPI via PRP0001.

Tested only via QEMU emulation.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

---
v3:
- Use a typedef for the function pointer type as introduced in precusor
  patch
---
 drivers/i2c/busses/i2c-aspeed.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
index be93de56f7e4..992d64acd38d 100644
--- a/drivers/i2c/busses/i2c-aspeed.c
+++ b/drivers/i2c/busses/i2c-aspeed.c
@@ -18,9 +18,8 @@ 
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/reset.h>
 #include <linux/slab.h>
 
@@ -976,7 +975,6 @@  MODULE_DEVICE_TABLE(of, aspeed_i2c_bus_of_table);
 
 static int aspeed_i2c_probe_bus(struct platform_device *pdev)
 {
-	const struct of_device_id *match;
 	struct aspeed_i2c_bus *bus;
 	struct clk *parent_clk;
 	int irq, ret;
@@ -1005,14 +1003,13 @@  static int aspeed_i2c_probe_bus(struct platform_device *pdev)
 	reset_control_deassert(bus->rst);
 
 	bus->bus_frequency = I2C_MAX_STANDARD_MODE_FREQ;
-	of_property_read_u32(pdev->dev.of_node,
-			     "bus-frequency", &bus->bus_frequency);
+	device_property_read_u32(&pdev->dev,
+				 "bus-frequency", &bus->bus_frequency);
 
-	match = of_match_node(aspeed_i2c_bus_of_table, pdev->dev.of_node);
-	if (!match)
+	bus->get_clk_reg_val =
+		(aspeed_get_clk_reg_val_cb)device_get_match_data(&pdev->dev);
+	if (!bus->get_clk_reg_val)
 		bus->get_clk_reg_val = aspeed_i2c_24xx_get_clk_reg_val;
-	else
-		bus->get_clk_reg_val = (aspeed_get_clk_reg_val_cb)(match->data);
 
 	/* Initialize the I2C adapter */
 	spin_lock_init(&bus->lock);