[PATCH v4 2/4] firmware: mediatek: Use meaningful names for mbox

From: Tinghan Shen
Date: Wed Jun 22 2022 - 02:23:57 EST


Rename mbox according to actions instead of 'mbox0' and 'mbox1'

Signed-off-by: Tinghan Shen <tinghan.shen@xxxxxxxxxxxx>
---
drivers/firmware/mtk-adsp-ipc.c | 36 +++++++++++----------------------
1 file changed, 12 insertions(+), 24 deletions(-)

diff --git a/drivers/firmware/mtk-adsp-ipc.c b/drivers/firmware/mtk-adsp-ipc.c
index cb255a99170c..3c071f814455 100644
--- a/drivers/firmware/mtk-adsp-ipc.c
+++ b/drivers/firmware/mtk-adsp-ipc.c
@@ -12,6 +12,8 @@
#include <linux/platform_device.h>
#include <linux/slab.h>

+static const char * const adsp_mbox_ch_names[MTK_ADSP_MBOX_NUM] = { "rx", "tx" };
+
/*
* mtk_adsp_ipc_send - send ipc cmd to MTK ADSP
*
@@ -72,7 +74,6 @@ static int mtk_adsp_ipc_probe(struct platform_device *pdev)
struct mtk_adsp_ipc *adsp_ipc;
struct mtk_adsp_chan *adsp_chan;
struct mbox_client *cl;
- char *chan_name;
int ret;
int i, j;

@@ -83,12 +84,6 @@ static int mtk_adsp_ipc_probe(struct platform_device *pdev)
return -ENOMEM;

for (i = 0; i < MTK_ADSP_MBOX_NUM; i++) {
- chan_name = kasprintf(GFP_KERNEL, "mbox%d", i);
- if (!chan_name) {
- ret = -ENOMEM;
- goto out;
- }
-
adsp_chan = &adsp_ipc->chans[i];
cl = &adsp_chan->cl;
cl->dev = dev->parent;
@@ -99,17 +94,20 @@ static int mtk_adsp_ipc_probe(struct platform_device *pdev)

adsp_chan->ipc = adsp_ipc;
adsp_chan->idx = i;
- adsp_chan->ch = mbox_request_channel_byname(cl, chan_name);
+ adsp_chan->ch = mbox_request_channel_byname(cl, adsp_mbox_ch_names[i]);
if (IS_ERR(adsp_chan->ch)) {
ret = PTR_ERR(adsp_chan->ch);
if (ret != -EPROBE_DEFER)
- dev_err(dev, "Failed to request mbox chan %d ret %d\n",
- i, ret);
- goto out_free;
- }
+ dev_err(dev, "Failed to request mbox chan %s ret %d\n",
+ adsp_mbox_ch_names[i], ret);
+
+ for (j = 0; j < i; j++) {
+ adsp_chan = &adsp_ipc->chans[j];
+ mbox_free_channel(adsp_chan->ch);
+ }

- dev_dbg(dev, "request mbox chan %s\n", chan_name);
- kfree(chan_name);
+ return ret;
+ }
}

adsp_ipc->dev = dev;
@@ -117,16 +115,6 @@ static int mtk_adsp_ipc_probe(struct platform_device *pdev)
dev_dbg(dev, "MTK ADSP IPC initialized\n");

return 0;
-
-out_free:
- kfree(chan_name);
-out:
- for (j = 0; j < i; j++) {
- adsp_chan = &adsp_ipc->chans[j];
- mbox_free_channel(adsp_chan->ch);
- }
-
- return ret;
}

static int mtk_adsp_ipc_remove(struct platform_device *pdev)
--
2.18.0