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openwrt/target/linux/bcm27xx/patches-6.6/950-1242-spi-rp2040-gpio-bridge-Add-debugfs-progress-indicato.patch
Álvaro Fernández Rojas 538a1d740c bcm27xx: update to latest RPi patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.58..rpi-6.6.y

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-10-31 13:44:23 +01:00

90 lines
2.4 KiB
Diff

From 4d219b15a7a01a14c1be1eeee9a939732130d30a Mon Sep 17 00:00:00 2001
From: Naushir Patuck <naush@raspberrypi.com>
Date: Tue, 13 Aug 2024 13:45:54 +0100
Subject: [PATCH 1242/1350] spi: rp2040-gpio-bridge: Add debugfs progress
indicator
Useful for tracking upload progress via userspace.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
---
drivers/spi/spi-rp2040-gpio-bridge.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
--- a/drivers/spi/spi-rp2040-gpio-bridge.c
+++ b/drivers/spi/spi-rp2040-gpio-bridge.c
@@ -6,6 +6,7 @@
*/
#include <crypto/hash.h>
+#include <linux/debugfs.h>
#include <linux/crypto.h>
#include <linux/delay.h>
#include <linux/firmware.h>
@@ -91,6 +92,9 @@ enum rp2040_gbdg_fixed_size_commands {
struct rp2040_gbdg {
struct spi_controller *controller;
+ struct dentry *debugfs;
+ size_t transfer_progress;
+
struct i2c_client *client;
struct crypto_shash *shash;
struct shash_desc *shash_desc;
@@ -702,6 +706,7 @@ static int rp2040_gbdg_transfer_cached(s
return 0;
}
+ priv_data->transfer_progress = 0;
while (length) {
unsigned int xfer = min(length, RP2040_GBDG_BLOCK_SIZE);
@@ -710,7 +715,9 @@ static int rp2040_gbdg_transfer_cached(s
return ret;
length -= xfer;
data += xfer;
+ priv_data->transfer_progress += xfer;
}
+ priv_data->transfer_progress = 0;
return 0;
}
@@ -1016,6 +1023,16 @@ static int rp2040_gbdg_power_on(struct r
return 0;
}
+static int transfer_progress_show(struct seq_file *s, void *data)
+{
+ struct rp2040_gbdg *rp2040_gbdg = s->private;
+
+ seq_printf(s, "%zu\n", rp2040_gbdg->transfer_progress);
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(transfer_progress);
+
static int rp2040_gbdg_probe(struct i2c_client *client)
{
struct rp2040_gbdg_device_info info;
@@ -1023,6 +1040,7 @@ static int rp2040_gbdg_probe(struct i2c_
struct device *dev = &client->dev;
struct rp2040_gbdg *rp2040_gbdg;
struct device_node *np;
+ char debugfs_name[128];
int ret;
np = dev->of_node;
@@ -1136,6 +1154,12 @@ static int rp2040_gbdg_probe(struct i2c_
rp2040_gbdg_parse_dt(rp2040_gbdg);
+ snprintf(debugfs_name, sizeof(debugfs_name), "rp2040-spi:%s",
+ dev_name(dev));
+ rp2040_gbdg->debugfs = debugfs_create_dir(debugfs_name, NULL);
+ debugfs_create_file("transfer_progress", 0444, rp2040_gbdg->debugfs,
+ rp2040_gbdg, &transfer_progress_fops);
+
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);