From: Biju Das <biju.das.jz@bp.renesas.com>
Date: Tue, 19 Mar 2024 10:53:54 +0000 (+0000)
Subject: usb: renesas_usbhs: Update usbhs pipe configuration for RZ/G2L family
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=caf8fa1120c2fd9206cc1dfd58b8b55e0817238e;p=linux.git

usb: renesas_usbhs: Update usbhs pipe configuration for RZ/G2L family

The RZ/G2L family SoCs has 10 pipe buffers compared to 16 pipe buffers on
RZ/A2M. Update the pipe configuration for RZ/G2L family SoCs and use
family SoC specific compatible to handle this difference.

The pipe configuration of RZ/G2L is same as usbhsc_rzg2l_default_pipe[],
so select the default pipe configuration for RZ/G2L SoCs by setting
.has_new_pipe_configs to zero.

Add SoC specific compatible to OF table to avoid ABI breakage with old
DTB. To optimize memory usage the SoC specific compatible will be removed
later.

Based on the patch in BSP by Huy Nguyen <huy.nguyen.wh@renesas.com>

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240319105356.87287-5-biju.das.jz@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 177fa3144a476..b436927c27117 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -363,7 +363,7 @@ static void usbhsc_clk_disable_unprepare(struct usbhs_priv *priv)
  *		platform default param
  */
 
-/* commonly used on old SH-Mobile SoCs */
+/* commonly used on old SH-Mobile and RZ/G2L family SoCs */
 static struct renesas_usbhs_driver_pipe_config usbhsc_default_pipe[] = {
 	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_CONTROL, 64, 0x00, false),
 	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_ISOC, 1024, 0x08, true),
@@ -565,6 +565,18 @@ static const struct of_device_id usbhs_of_match[] = {
 		.compatible = "renesas,usbhs-r8a77995",
 		.data = &usbhs_rcar_gen3_with_pll_plat_info,
 	},
+	{
+		.compatible = "renesas,usbhs-r9a07g043",
+		.data = &usbhs_rzg2l_plat_info,
+	},
+	{
+		.compatible = "renesas,usbhs-r9a07g044",
+		.data = &usbhs_rzg2l_plat_info,
+	},
+	{
+		.compatible = "renesas,usbhs-r9a07g054",
+		.data = &usbhs_rzg2l_plat_info,
+	},
 	{
 		.compatible = "renesas,rcar-gen2-usbhs",
 		.data = &usbhs_rcar_gen2_plat_info,
@@ -581,6 +593,10 @@ static const struct of_device_id usbhs_of_match[] = {
 		.compatible = "renesas,rza2-usbhs",
 		.data = &usbhs_rza2_plat_info,
 	},
+	{
+		.compatible = "renesas,rzg2l-usbhs",
+		.data = &usbhs_rzg2l_plat_info,
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, usbhs_of_match);
diff --git a/drivers/usb/renesas_usbhs/rza.h b/drivers/usb/renesas_usbhs/rza.h
index a29b75fef057c..8b879aa34a203 100644
--- a/drivers/usb/renesas_usbhs/rza.h
+++ b/drivers/usb/renesas_usbhs/rza.h
@@ -3,3 +3,4 @@
 
 extern const struct renesas_usbhs_platform_info usbhs_rza1_plat_info;
 extern const struct renesas_usbhs_platform_info usbhs_rza2_plat_info;
+extern const struct renesas_usbhs_platform_info usbhs_rzg2l_plat_info;
diff --git a/drivers/usb/renesas_usbhs/rza2.c b/drivers/usb/renesas_usbhs/rza2.c
index f079817250bbf..b83699eab3738 100644
--- a/drivers/usb/renesas_usbhs/rza2.c
+++ b/drivers/usb/renesas_usbhs/rza2.c
@@ -71,3 +71,16 @@ const struct renesas_usbhs_platform_info usbhs_rza2_plat_info = {
 		.has_new_pipe_configs = 1,
 	},
 };
+
+const struct renesas_usbhs_platform_info usbhs_rzg2l_plat_info = {
+	.platform_callback = {
+		.hardware_init = usbhs_rza2_hardware_init,
+		.hardware_exit = usbhs_rza2_hardware_exit,
+		.power_ctrl = usbhs_rza2_power_ctrl,
+		.get_id = usbhs_get_id_as_gadget,
+	},
+	.driver_param = {
+		.has_cnen = 1,
+		.cfifo_byte_addr = 1,
+	},
+};