[PATCH v6 4/4] mailbox: imx: support i.MX95 ELE/V2X MU

From: Peng Fan (OSS)
Date: Wed Jan 31 2024 - 18:47:17 EST


From: Peng Fan <peng.fan@xxxxxxx>

Add i.MX95 ELE/V2X MU support, its register layout is same as
i.MX8ULP, but the Parameter registers would show different
TR/RR. Since the driver already supports get TR/RR from Parameter
registers, not hardcoding the number, this patch just add
the compatible entry to reuse i.MX8ULP S4 cfg data.

To use the internal SRAM, need populate its sub-nodes.

Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---
drivers/mailbox/imx-mailbox.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c
index 9e89f773d2f9..5c1d09cad761 100644
--- a/drivers/mailbox/imx-mailbox.c
+++ b/drivers/mailbox/imx-mailbox.c
@@ -4,6 +4,7 @@
* Copyright 2022 NXP, Peng Fan <peng.fan@xxxxxxx>
*/

+#include <linux/bitfield.h>
#include <linux/clk.h>
#include <linux/firmware/imx/ipc.h>
#include <linux/firmware/imx/s4.h>
@@ -15,6 +16,7 @@
#include <linux/mailbox_controller.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/suspend.h>
@@ -919,6 +921,8 @@ static int imx_mu_probe(struct platform_device *pdev)
if (ret)
goto disable_clk;

+ of_platform_populate(dev->of_node, NULL, NULL, dev);
+
pm_runtime_enable(dev);

ret = pm_runtime_resume_and_get(dev);
@@ -1031,6 +1035,9 @@ static const struct of_device_id imx_mu_dt_ids[] = {
{ .compatible = "fsl,imx8ulp-mu", .data = &imx_mu_cfg_imx8ulp },
{ .compatible = "fsl,imx8ulp-mu-s4", .data = &imx_mu_cfg_imx8ulp_s4 },
{ .compatible = "fsl,imx93-mu-s4", .data = &imx_mu_cfg_imx93_s4 },
+ { .compatible = "fsl,imx95-mu", .data = &imx_mu_cfg_imx8ulp },
+ { .compatible = "fsl,imx95-mu-ele", .data = &imx_mu_cfg_imx8ulp_s4 },
+ { .compatible = "fsl,imx95-mu-v2x", .data = &imx_mu_cfg_imx8ulp_s4 },
{ .compatible = "fsl,imx8-mu-scu", .data = &imx_mu_cfg_imx8_scu },
{ .compatible = "fsl,imx8-mu-seco", .data = &imx_mu_cfg_imx8_seco },
{ },

--
2.37.1