From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/drivers/staging/iio/frequency/ad9832.c | 63 +++++++++++++++++++------------
1 files changed, 38 insertions(+), 25 deletions(-)
diff --git a/kernel/drivers/staging/iio/frequency/ad9832.c b/kernel/drivers/staging/iio/frequency/ad9832.c
index c73eff1..447937e 100644
--- a/kernel/drivers/staging/iio/frequency/ad9832.c
+++ b/kernel/drivers/staging/iio/frequency/ad9832.c
@@ -1,26 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* AD9832 SPI DDS driver
*
* Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
*/
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/spi/spi.h>
-#include <linux/regulator/consumer.h>
-#include <linux/err.h>
-#include <linux/module.h>
#include <asm/div64.h>
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/sysfs.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
-#include "dds.h"
#include "ad9832.h"
+
+#include "dds.h"
/* Registers */
@@ -94,7 +96,7 @@
struct spi_device *spi;
struct regulator *avdd;
struct regulator *dvdd;
- unsigned long mclk;
+ struct clk *mclk;
unsigned short ctrl_fp;
unsigned short ctrl_ss;
unsigned short ctrl_src;
@@ -129,10 +131,10 @@
{
unsigned long regval;
- if (fout > (st->mclk / 2))
+ if (fout > (clk_get_rate(st->mclk) / 2))
return -EINVAL;
- regval = ad9832_calc_freqreg(st->mclk, fout);
+ regval = ad9832_calc_freqreg(clk_get_rate(st->mclk), fout);
st->freq_data[0] = cpu_to_be16((AD9832_CMD_FRE8BITSW << CMD_SHIFT) |
(addr << ADD_SHIFT) |
@@ -333,11 +335,19 @@
goto error_disable_avdd;
}
- st->mclk = pdata->mclk;
+ st->mclk = devm_clk_get(&spi->dev, "mclk");
+ if (IS_ERR(st->mclk)) {
+ ret = PTR_ERR(st->mclk);
+ goto error_disable_dvdd;
+ }
+
+ ret = clk_prepare_enable(st->mclk);
+ if (ret < 0)
+ goto error_disable_dvdd;
+
st->spi = spi;
mutex_init(&st->lock);
- indio_dev->dev.parent = &spi->dev;
indio_dev->name = spi_get_device_id(spi)->name;
indio_dev->info = &ad9832_info;
indio_dev->modes = INDIO_DIRECT_MODE;
@@ -384,39 +394,41 @@
ret = spi_sync(st->spi, &st->msg);
if (ret) {
dev_err(&spi->dev, "device init failed\n");
- goto error_disable_dvdd;
+ goto error_unprepare_mclk;
}
ret = ad9832_write_frequency(st, AD9832_FREQ0HM, pdata->freq0);
if (ret)
- goto error_disable_dvdd;
+ goto error_unprepare_mclk;
ret = ad9832_write_frequency(st, AD9832_FREQ1HM, pdata->freq1);
if (ret)
- goto error_disable_dvdd;
+ goto error_unprepare_mclk;
ret = ad9832_write_phase(st, AD9832_PHASE0H, pdata->phase0);
if (ret)
- goto error_disable_dvdd;
+ goto error_unprepare_mclk;
ret = ad9832_write_phase(st, AD9832_PHASE1H, pdata->phase1);
if (ret)
- goto error_disable_dvdd;
+ goto error_unprepare_mclk;
ret = ad9832_write_phase(st, AD9832_PHASE2H, pdata->phase2);
if (ret)
- goto error_disable_dvdd;
+ goto error_unprepare_mclk;
ret = ad9832_write_phase(st, AD9832_PHASE3H, pdata->phase3);
if (ret)
- goto error_disable_dvdd;
+ goto error_unprepare_mclk;
ret = iio_device_register(indio_dev);
if (ret)
- goto error_disable_dvdd;
+ goto error_unprepare_mclk;
return 0;
+error_unprepare_mclk:
+ clk_disable_unprepare(st->mclk);
error_disable_dvdd:
regulator_disable(st->dvdd);
error_disable_avdd:
@@ -431,6 +443,7 @@
struct ad9832_state *st = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
+ clk_disable_unprepare(st->mclk);
regulator_disable(st->dvdd);
regulator_disable(st->avdd);
@@ -454,6 +467,6 @@
};
module_spi_driver(ad9832_driver);
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD9832/AD9835 DDS");
MODULE_LICENSE("GPL v2");
--
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