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7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
65 lines
2.1 KiB
Diff
65 lines
2.1 KiB
Diff
From 3280ce5f5483a351f49e84b48ad98df87989346a Mon Sep 17 00:00:00 2001
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From: Mariusz Bialonczyk <manio@skyboo.net>
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Date: Mon, 20 May 2019 09:05:55 +0200
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Subject: [PATCH] w1: ds2413: output_write() cosmetic fixes / simplify
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commit ae2ee27aa985232f66421d7cd1c7f4b87c7dba7d upstream.
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Make the output_write simpler.
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Based on Jean-Francois Dagenais code from:
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49695ac46861 ("w1: ds2408: reset on output_write retry with readback")
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Signed-off-by: Mariusz Bialonczyk <manio@skyboo.net>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/w1/slaves/w1_ds2413.c | 19 +++++++++++--------
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1 file changed, 11 insertions(+), 8 deletions(-)
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--- a/drivers/w1/slaves/w1_ds2413.c
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+++ b/drivers/w1/slaves/w1_ds2413.c
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@@ -69,6 +69,7 @@ static ssize_t output_write(struct file
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struct w1_slave *sl = kobj_to_w1_slave(kobj);
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u8 w1_buf[3];
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unsigned int retries = W1_F3A_RETRIES;
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+ ssize_t bytes_written = -EIO;
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if (count != 1 || off != 0)
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return -EFAULT;
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@@ -78,7 +79,7 @@ static ssize_t output_write(struct file
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dev_dbg(&sl->dev, "mutex locked");
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if (w1_reset_select_slave(sl))
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- goto error;
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+ goto out;
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/* according to the DS2413 datasheet the most significant 6 bits
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should be set to "1"s, so do it now */
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@@ -91,18 +92,20 @@ static ssize_t output_write(struct file
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w1_write_block(sl->master, w1_buf, 3);
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if (w1_read_8(sl->master) == W1_F3A_SUCCESS_CONFIRM_BYTE) {
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- mutex_unlock(&sl->master->bus_mutex);
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- dev_dbg(&sl->dev, "mutex unlocked, retries:%d", retries);
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- return 1;
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+ bytes_written = 1;
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+ goto out;
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}
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if (w1_reset_resume_command(sl->master))
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- goto error;
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+ goto out; /* unrecoverable error */
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+
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+ dev_warn(&sl->dev, "PIO_ACCESS_WRITE error, retries left: %d\n", retries);
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}
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-error:
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+out:
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mutex_unlock(&sl->master->bus_mutex);
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- dev_dbg(&sl->dev, "mutex unlocked in error, retries:%d", retries);
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- return -EIO;
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+ dev_dbg(&sl->dev, "%s, mutex unlocked, retries: %d\n",
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+ (bytes_written > 0) ? "succeeded" : "error", retries);
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+ return bytes_written;
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}
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static BIN_ATTR(output, S_IRUGO | S_IWUSR | S_IWGRP, NULL, output_write, 1);
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