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4dba406fac
Storing the maximum clock speed in module parameter qcaspi_clkspeed
has the unintended side effect that the first probed instance
defines the value for all other instances. Fix this issue by storing
it in max_speed_hz of the relevant SPI device.
This fix keeps the priority of the speed parameter (module parameter,
device tree property, driver default). Btw this uses the opportunity
to get the rid of the unused member clkspeed.
Fixes: 291ab06ecf ("net: qualcomm: new Ethernet over SPI driver for QCA7000")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://patch.msgid.link/20241206184643.123399-2-wahrenst@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
96 lines
1.8 KiB
C
96 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
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/*
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* Copyright (c) 2011, 2012, Qualcomm Atheros Communications Inc.
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* Copyright (c) 2014, I2SE GmbH
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*/
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/* Qualcomm Atheros SPI register definition.
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*
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* This module is designed to define the Qualcomm Atheros SPI register
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* placeholders;
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*/
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#ifndef _QCA_SPI_H
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#define _QCA_SPI_H
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#include <linux/netdevice.h>
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#include <linux/sched.h>
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#include <linux/skbuff.h>
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#include <linux/spi/spi.h>
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#include <linux/types.h>
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#include "qca_7k_common.h"
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#define QCASPI_DRV_VERSION "0.2.7-i"
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#define QCASPI_DRV_NAME "qcaspi"
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#define QCASPI_GOOD_SIGNATURE 0xAA55
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#define QCASPI_TX_RING_MAX_LEN 10
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#define QCASPI_TX_RING_MIN_LEN 2
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#define QCASPI_RX_MAX_FRAMES 4
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/* sync related constants */
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#define QCASPI_SYNC_UNKNOWN 0
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#define QCASPI_SYNC_RESET 1
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#define QCASPI_SYNC_READY 2
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#define QCASPI_RESET_TIMEOUT 10
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/* sync events */
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#define QCASPI_EVENT_UPDATE 0
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#define QCASPI_EVENT_CPUON 1
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struct tx_ring {
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struct sk_buff *skb[QCASPI_TX_RING_MAX_LEN];
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u16 head;
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u16 tail;
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u16 size;
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u16 count;
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};
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struct qcaspi_stats {
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u64 trig_reset;
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u64 device_reset;
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u64 reset_timeout;
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u64 read_err;
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u64 write_err;
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u64 read_buf_err;
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u64 write_buf_err;
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u64 out_of_mem;
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u64 write_buf_miss;
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u64 ring_full;
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u64 spi_err;
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u64 write_verify_failed;
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u64 buf_avail_err;
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u64 bad_signature;
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};
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struct qcaspi {
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struct net_device *net_dev;
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struct spi_device *spi_dev;
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struct task_struct *spi_thread;
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struct tx_ring txr;
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struct qcaspi_stats stats;
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u8 *rx_buffer;
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u32 buffer_size;
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u8 sync;
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struct qcafrm_handle frm_handle;
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struct sk_buff *rx_skb;
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unsigned long flags;
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u16 reset_count;
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#ifdef CONFIG_DEBUG_FS
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struct dentry *device_root;
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#endif
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/* user configurable options */
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u8 legacy_mode;
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u16 burst_len;
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};
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#endif /* _QCA_SPI_H */
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