linux-kernel - [PATCH] drivers/staging/pi433: Change data type of bit

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Message-Id: <20221020181815.31245-1-gautammenghani201@gmail.com>
Date:   Thu, 20 Oct 2022 23:48:15 +0530
From:   Gautam Menghani <gautammenghani201@...il.com>
To:     gregkh@...uxfoundation.org, paulo.miguel.almeida.rodenas@...il.com
Cc:     Gautam Menghani <gautammenghani201@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH] drivers/staging/pi433: Change data type of bit_rate to be u32

A TODO asks to convert the bit_rate variable to be a u32 so that bit 
rates up to 300kbps can be supported as per the spec.

Signed-off-by: Gautam Menghani <gautammenghani201@...il.com>
---
Please note that this patch is only compile tested.

 drivers/staging/pi433/TODO       | 2 --
 drivers/staging/pi433/pi433_if.h | 4 ++--
 drivers/staging/pi433/rf69.c     | 2 +-
 drivers/staging/pi433/rf69.h     | 2 +-
 4 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/pi433/TODO b/drivers/staging/pi433/TODO
index 5cf3fd99d521..8530bbe61d70 100644
--- a/drivers/staging/pi433/TODO
+++ b/drivers/staging/pi433/TODO
@@ -1,5 +1,3 @@
 * currently the code introduces new IOCTLs. I'm afraid this is a bad idea.
   -> Replace this with another interface, hints are welcome!
 * Some missing data (marked with ###) needs to be added in the documentation
-* Change (struct pi433_tx_cfg)->bit_rate to be a u32 so that we can support
-    bit rates up to 300kbps per the spec.
diff --git a/drivers/staging/pi433/pi433_if.h b/drivers/staging/pi433/pi433_if.h
index 25ee0b77a32c..c958dcfa9f96 100644
--- a/drivers/staging/pi433/pi433_if.h
+++ b/drivers/staging/pi433/pi433_if.h
@@ -51,7 +51,7 @@ enum option_on_off {
 #define PI433_TX_CFG_IOCTL_NR	0
 struct pi433_tx_cfg {
 	__u32			frequency;
-	__u16			bit_rate;
+	__u32			bit_rate;
 	__u32			dev_frequency;
 	enum modulation		modulation;
 	enum mod_shaping	mod_shaping;
@@ -99,7 +99,7 @@ struct pi433_tx_cfg {
 #define PI433_RX_CFG_IOCTL_NR	1
 struct pi433_rx_cfg {
 	__u32			frequency;
-	__u16			bit_rate;
+	__u32			bit_rate;
 	__u32			dev_frequency;
 
 	enum modulation		modulation;
diff --git a/drivers/staging/pi433/rf69.c b/drivers/staging/pi433/rf69.c
index 8c7fab6a46bb..7e754a3aef5f 100644
--- a/drivers/staging/pi433/rf69.c
+++ b/drivers/staging/pi433/rf69.c
@@ -185,7 +185,7 @@ int rf69_set_modulation_shaping(struct spi_device *spi,
 	}
 }
 
-int rf69_set_bit_rate(struct spi_device *spi, u16 bit_rate)
+int rf69_set_bit_rate(struct spi_device *spi, u32 bit_rate)
 {
 	int retval;
 	u32 bit_rate_reg;
diff --git a/drivers/staging/pi433/rf69.h b/drivers/staging/pi433/rf69.h
index 78fa0b8bab8b..46a1fb2d5329 100644
--- a/drivers/staging/pi433/rf69.h
+++ b/drivers/staging/pi433/rf69.h
@@ -24,7 +24,7 @@ int rf69_set_data_mode(struct spi_device *spi, u8 data_mode);
 int rf69_set_modulation(struct spi_device *spi, enum modulation modulation);
 int rf69_set_modulation_shaping(struct spi_device *spi,
 				enum mod_shaping mod_shaping);
-int rf69_set_bit_rate(struct spi_device *spi, u16 bit_rate);
+int rf69_set_bit_rate(struct spi_device *spi, u32 bit_rate);
 int rf69_set_deviation(struct spi_device *spi, u32 deviation);
 int rf69_set_frequency(struct spi_device *spi, u32 frequency);
 int rf69_enable_amplifier(struct spi_device *spi, u8 amplifier_mask);
-- 
2.34.1