All of lore.kernel.org
 help / color / mirror / Atom feed
From: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com>
To: gregkh@linuxfoundation.org,
	paulo.miguel.almeida.rodenas@gmail.com, realwakka@gmail.com
Cc: linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] staging: pi433: fix validation for min bit rate supported by the device
Date: Sun, 16 Jan 2022 13:21:26 +1300	[thread overview]
Message-ID: <20220116002126.GA23135@mail.google.com> (raw)
In-Reply-To: <20220116001726.GA22699@mail.google.com>

rf69 datasheets establishes that the minimum supported bit rate is
1.2 kbps regardless of modulation.

this patch replaces the errouneous validation with the correct value

Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com>
---
 drivers/staging/pi433/rf69.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/pi433/rf69.c b/drivers/staging/pi433/rf69.c
index ee8c81d164e1..f4ac17adcd83 100644
--- a/drivers/staging/pi433/rf69.c
+++ b/drivers/staging/pi433/rf69.c
@@ -226,14 +226,12 @@ int rf69_set_modulation_shaping(struct spi_device *spi,
 int rf69_set_bit_rate(struct spi_device *spi, u16 bit_rate)
 {
 	int retval;
-	u32 bit_rate_min;
 	u32 bit_rate_reg;
 	u8 msb;
 	u8 lsb;
 
 	// check input value
-	bit_rate_min = F_OSC / 8388608; // 8388608 = 2^23;
-	if (bit_rate < bit_rate_min) {
+	if (bit_rate < 1200) {
 		dev_dbg(&spi->dev, "setBitRate: illegal input param");
 		return -EINVAL;
 	}
-- 
2.25.4


  reply	other threads:[~2022-01-16  0:21 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-16  0:17 [PATCH 0/3] staging: pi433: validate min/max bit rate settings Paulo Miguel Almeida
2022-01-16  0:21 ` Paulo Miguel Almeida [this message]
2022-01-16  0:22 ` [PATCH 2/3] staging: pi433: change order in which driver config the rf69 chip Paulo Miguel Almeida
2022-01-16  0:23 ` [PATCH 3/3] staging: pi433: validate max bit_rate based on modulation used Paulo Miguel Almeida
2022-01-16 14:06   ` kernel test robot
2022-01-16 14:06     ` kernel test robot
2022-01-17  5:58     ` [PATCH v2 0/3] staging: pi433: validate min/max bit rate settings Paulo Miguel Almeida
2022-01-17  6:00       ` [PATCH v2 1/3] staging: pi433: fix validation for min bit rate supported by the device Paulo Miguel Almeida
2022-01-17  6:01       ` [PATCH v2 2/3] staging: pi433: change order in which driver config the rf69 chip Paulo Miguel Almeida
2022-01-17  6:02       ` [PATCH v2 3/3] staging: pi433: validate max bit_rate based on modulation used Paulo Miguel Almeida
2022-01-18 13:59         ` Dan Carpenter
2022-01-18 19:34           ` Paulo Miguel Almeida
2022-01-18 23:03             ` [PATCH v3 0/3] staging: pi433: validate min/max bit rate settings Paulo Miguel Almeida
2022-01-18 23:04               ` [PATCH v3 1/3] staging: pi433: fix validation for min bit rate supported by the device Paulo Miguel Almeida
2022-01-18 23:05               ` [PATCH v3 2/3] staging: pi433: change order in which driver config the rf69 chip Paulo Miguel Almeida
2022-01-18 23:05               ` [PATCH v3 3/3] staging: pi433: validate max bit_rate based on modulation used Paulo Miguel Almeida
2022-01-19  6:04               ` [PATCH v3 0/3] staging: pi433: validate min/max bit rate settings Dan Carpenter
2022-01-23  7:43                 ` Paulo Miguel Almeida
2022-01-24  8:53                   ` Dan Carpenter
2022-01-19  5:34             ` [PATCH v2 3/3] staging: pi433: validate max bit_rate based on modulation used Dan Carpenter

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220116002126.GA23135@mail.google.com \
    --to=paulo.miguel.almeida.rodenas@gmail.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-staging@lists.linux.dev \
    --cc=realwakka@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.