From: Dileep Kumar Nagavarapu <dileepkumar.nagavarapu@amd.com>
To: "Jonathan Cameron" <jic23@kernel.org>,
"David Lechner" <dlechner@baylibre.com>,
"Nuno Sá" <nuno.sa@analog.com>,
"Andy Shevchenko" <andy@kernel.org>,
"Michal Simek" <michal.simek@amd.com>,
"Conall O'Griofa" <conall.ogriofa@amd.com>
Cc: <linux-iio@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <git@amd.com>,
Dileep Kumar Nagavarapu <dileepkumar.nagavarapu@amd.com>,
Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Subject: [PATCH v5 04/16] iio: adc: xilinx-xadc: Drop unnecessary masking and dead code
Date: Tue, 10 Nov 2026 10:31:49 +0530 [thread overview]
Message-ID: <20261110050201.1850399-5-dileepkumar.nagavarapu@amd.com> (raw)
In-Reply-To: <20261110050201.1850399-1-dileepkumar.nagavarapu@amd.com>
Remove a no-operation bitwise-OR with zero (dead code) and the redundant
16-bit masking when storing values into u16 destinations, where the
mask has no effect.
No functional change intended.
Co-developed-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Signed-off-by: Dileep Kumar Nagavarapu <dileepkumar.nagavarapu@amd.com>
---
drivers/iio/adc/xilinx-xadc-core.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c
index e9d5b7ebdccf..66c6f3319ca0 100644
--- a/drivers/iio/adc/xilinx-xadc-core.c
+++ b/drivers/iio/adc/xilinx-xadc-core.c
@@ -182,7 +182,6 @@ static int xadc_zynq_write_adc_reg(struct xadc *xadc, unsigned int reg, u16 val)
xadc_zynq_write_fifo(xadc, cmd, ARRAY_SIZE(cmd));
xadc_read_reg(xadc, XADC_ZYNQ_REG_CFG, &tmp);
tmp &= ~XADC_ZYNQ_CFG_DFIFOTH_MASK;
- tmp |= 0 << XADC_ZYNQ_CFG_DFIFOTH_OFFSET;
xadc_write_reg(xadc, XADC_ZYNQ_REG_CFG, tmp);
xadc_zynq_update_intmsk(xadc, XADC_ZYNQ_INT_DFIFO_GTH, 0);
@@ -230,7 +229,7 @@ static int xadc_zynq_read_adc_reg(struct xadc *xadc, unsigned int reg, u16 *val)
xadc_read_reg(xadc, XADC_ZYNQ_REG_DFIFO, &resp);
xadc_read_reg(xadc, XADC_ZYNQ_REG_DFIFO, &resp);
- *val = resp & 0xffff;
+ *val = resp;
return 0;
}
@@ -452,7 +451,7 @@ static int xadc_axi_read_adc_reg(struct xadc *xadc, unsigned int reg, u16 *val)
u32 val32;
xadc_read_reg(xadc, xadc_axi_reg_offsets[xadc->ops->type] + reg * 4, &val32);
- *val = val32 & 0xffff;
+ *val = val32;
return 0;
}
--
2.34.1
next prev parent reply other threads:[~2026-11-10 5:08 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-10 5:01 [PATCH v5 00/16] iio: adc: xilinx-xadc: Add I2C interface support for System Management Wizard Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 01/16] iio: adc: xilinx-xadc: Correct write edge in CFG Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 02/16] iio: adc: xilinx-xadc: Fix coding style issues Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 03/16] iio: adc: xilinx-xadc: Use kernel integer types Dileep Kumar Nagavarapu
2026-11-10 5:01 ` Dileep Kumar Nagavarapu [this message]
2026-11-10 5:01 ` [PATCH v5 05/16] iio: adc: xilinx-xadc: Use bitfield helpers and bit macros Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 06/16] iio: adc: xilinx-xadc: Use guard()/scoped_guard() for spinlock locking Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 07/16] iio: adc: xilinx-xadc: Use guard() for mutex locking Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 08/16] iio: adc: xilinx-xadc: Simplify common coding patterns Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 09/16] iio: adc: xilinx-xadc: Add unit suffixes to macro names Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 10/16] iio: adc: xilinx-xadc: Include appropriate header files Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 11/16] iio: adc: xilinx-xadc: Add clarifying comments Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 12/16] iio: adc: xilinx-xadc: Refine Zynq read/write error handling on timeout/interrupt Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 13/16] iio: adc: xilinx-xadc: Add helper functions for the device setup Dileep Kumar Nagavarapu
2026-11-10 5:01 ` [PATCH v5 14/16] iio: adc: xilinx-xadc: Split driver into core and platform files Dileep Kumar Nagavarapu
2026-11-10 5:02 ` [PATCH v5 15/16] iio: adc: xilinx-xadc: Add .setup_channels() to struct xadc_ops Dileep Kumar Nagavarapu
2026-11-10 5:02 ` [PATCH v5 16/16] iio: adc: xilinx-xadc: Add I2C interface support Dileep Kumar Nagavarapu
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