diff mbox series

[4/7] serial: 8250_dw: Provide the RZN1 CPR register value

Message ID 20220310161650.289387-5-miquel.raynal@bootlin.com
State New
Headers show
Series RZN1 UART DMA support | expand

Commit Message

Miquel Raynal March 10, 2022, 4:16 p.m. UTC 
On the RZN1 SoC, the DW serial IP has been synthesized without CPR
support. In order to continue being able to parse the hardware
capabilities, provide the equivalent register value as platform data.

Suggested-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 drivers/tty/serial/8250/8250_dw.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index ee7562a9ec76..1f7a423d6ef2 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -677,11 +677,15 @@  static const struct dev_pm_ops dw8250_pm_ops = {
 	SET_RUNTIME_PM_OPS(dw8250_runtime_suspend, dw8250_runtime_resume, NULL)
 };
 
+static const struct dw8250_platform_data rzn1_pdata = {
+	.cpr = 0x00012f32,
+};
+
 static const struct of_device_id dw8250_of_match[] = {
 	{ .compatible = "snps,dw-apb-uart" },
 	{ .compatible = "cavium,octeon-3860-uart" },
 	{ .compatible = "marvell,armada-38x-uart" },
-	{ .compatible = "renesas,rzn1-uart" },
+	{ .compatible = "renesas,rzn1-uart", .data = &rzn1_pdata },
 	{ .compatible = "starfive,jh7100-uart" },
 	{ /* Sentinel */ }
 };