libata: remove no longer needed pata_winbond driver (6d981b9a) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/ata/Kconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -828,6 +828,7 @@ config PATA_SAMSUNG_CF
		config PATA_WINBOND_VLB
		tristate "Winbond W83759A VLB PATA support (Experimental)"
		depends on ISA && EXPERIMENTAL
		select PATA_LEGACY
		help
		Support for the Winbond W83759A controller on Vesa Local Bus
		systems.

drivers/ata/Makefile

+0 −1

Original line number	Diff line number	Diff line
		@@ -89,7 +89,6 @@ obj-$(CONFIG_PATA_QDI) += pata_qdi.o
		obj-$(CONFIG_PATA_RB532) += pata_rb532_cf.o
		obj-$(CONFIG_PATA_RZ1000) += pata_rz1000.o
		obj-$(CONFIG_PATA_SAMSUNG_CF) += pata_samsung_cf.o
		obj-$(CONFIG_PATA_WINBOND_VLB) += pata_winbond.o

		obj-$(CONFIG_PATA_PXA) += pata_pxa.o

drivers/ata/pata_legacy.c

+13 −2

Original line number	Diff line number	Diff line
		@@ -44,6 +44,9 @@
		* Specific support is included for the ht6560a/ht6560b/opti82c611a/
		* opti82c465mv/promise 20230c/20630/qdi65x0/winbond83759A
		*
		* Support for the Winbond 83759A when operating in advanced mode.
		* Multichip mode is not currently supported.
		*
		* Use the autospeed and pio_mask options with:
		* Appian ADI/2 aka CLPD7220 or AIC25VL01.
		* Use the jumpers, autospeed and set pio_mask to the mode on the jumpers with
		@@ -135,12 +138,18 @@ static int ht6560b; /* HT 6560A on primary 1, second 2, both 3 */
		static int opti82c611a; /* Opti82c611A on primary 1, sec 2, both 3 */
		static int opti82c46x; /* Opti 82c465MV present(pri/sec autodetect) */
		static int qdi; /* Set to probe QDI controllers */
		static int winbond; /* Set to probe Winbond controllers,
		give I/O port if non standard */
		static int autospeed; /* Chip present which snoops speed changes */
		static int pio_mask = ATA_PIO4; /* PIO range for autospeed devices */
		static int iordy_mask = 0xFFFFFFFF; /* Use iordy if available */

		#ifdef PATA_WINBOND_VLB_MODULE
		static int winbond = 1; /* Set to probe Winbond controllers,
		give I/O port if non standard */
		#else
		static int winbond; /* Set to probe Winbond controllers,
		give I/O port if non standard */
		#endif

		/**
		* legacy_probe_add - Add interface to probe list
		* @port: Controller port
		@@ -1297,6 +1306,7 @@ MODULE_AUTHOR("Alan Cox");
		MODULE_DESCRIPTION("low-level driver for legacy ATA");
		MODULE_LICENSE("GPL");
		MODULE_VERSION(DRV_VERSION);
		MODULE_ALIAS("pata_winbond");

		module_param(probe_all, int, 0);
		module_param(autospeed, int, 0);
		@@ -1305,6 +1315,7 @@ module_param(ht6560b, int, 0);
		module_param(opti82c611a, int, 0);
		module_param(opti82c46x, int, 0);
		module_param(qdi, int, 0);
		module_param(winbond, int, 0);
		module_param(pio_mask, int, 0);
		module_param(iordy_mask, int, 0);

drivers/ata/pata_winbond.c

deleted100644 → 0

+0 −282

Original line number	Diff line number	Diff line
		/*
		* pata_winbond.c - Winbond VLB ATA controllers
		* (C) 2006 Red Hat
		*
		* Support for the Winbond 83759A when operating in advanced mode.
		* Multichip mode is not currently supported.
		*/

		#include <linux/kernel.h>
		#include <linux/module.h>
		#include <linux/init.h>
		#include <linux/blkdev.h>
		#include <linux/delay.h>
		#include <scsi/scsi_host.h>
		#include <linux/libata.h>
		#include <linux/platform_device.h>

		#define DRV_NAME "pata_winbond"
		#define DRV_VERSION "0.0.3"

		#define NR_HOST 4 /* Two winbond controllers, two channels each */

		struct winbond_data {
		unsigned long config;
		struct platform_device *platform_dev;
		};

		static struct ata_host *winbond_host[NR_HOST];
		static struct winbond_data winbond_data[NR_HOST];
		static int nr_winbond_host;

		#ifdef MODULE
		static int probe_winbond = 1;
		#else
		static int probe_winbond;
		#endif

		static DEFINE_SPINLOCK(winbond_lock);

		static void winbond_writecfg(unsigned long port, u8 reg, u8 val)
		{
		unsigned long flags;
		spin_lock_irqsave(&winbond_lock, flags);
		outb(reg, port + 0x01);
		outb(val, port + 0x02);
		spin_unlock_irqrestore(&winbond_lock, flags);
		}

		static u8 winbond_readcfg(unsigned long port, u8 reg)
		{
		u8 val;

		unsigned long flags;
		spin_lock_irqsave(&winbond_lock, flags);
		outb(reg, port + 0x01);
		val = inb(port + 0x02);
		spin_unlock_irqrestore(&winbond_lock, flags);

		return val;
		}

		static void winbond_set_piomode(struct ata_port ap, struct ata_device adev)
		{
		struct ata_timing t;
		struct winbond_data *winbond = ap->host->private_data;
		int active, recovery;
		u8 reg;
		int timing = 0x88 + (ap->port_no * 4) + (adev->devno * 2);

		reg = winbond_readcfg(winbond->config, 0x81);

		/* Get the timing data in cycles */
		if (reg & 0x40) /* Fast VLB bus, assume 50MHz */
		ata_timing_compute(adev, adev->pio_mode, &t, 20000, 1000);
		else
		ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000);

		active = (clamp_val(t.active, 3, 17) - 1) & 0x0F;
		recovery = (clamp_val(t.recover, 1, 15) + 1) & 0x0F;
		timing = (active << 4) \| recovery;
		winbond_writecfg(winbond->config, timing, reg);

		/* Load the setup timing */

		reg = 0x35;
		if (adev->class != ATA_DEV_ATA)
		reg \|= 0x08; /* FIFO off */
		if (!ata_pio_need_iordy(adev))
		reg \|= 0x02; /* IORDY off */
		reg \|= (clamp_val(t.setup, 0, 3) << 6);
		winbond_writecfg(winbond->config, timing + 1, reg);
		}


		static unsigned int winbond_data_xfer(struct ata_device *dev,
		unsigned char *buf, unsigned int buflen, int rw)
		{
		struct ata_port *ap = dev->link->ap;
		int slop = buflen & 3;

		if (ata_id_has_dword_io(dev->id)) {
		if (rw == READ)
		ioread32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
		else
		iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);

		if (unlikely(slop)) {
		__le32 pad;
		if (rw == READ) {
		pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr));
		memcpy(buf + buflen - slop, &pad, slop);
		} else {
		memcpy(&pad, buf + buflen - slop, slop);
		iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr);
		}
		buflen += 4 - slop;
		}
		} else
		buflen = ata_sff_data_xfer(dev, buf, buflen, rw);

		return buflen;
		}

		static struct scsi_host_template winbond_sht = {
		ATA_PIO_SHT(DRV_NAME),
		};

		static struct ata_port_operations winbond_port_ops = {
		.inherits = &ata_sff_port_ops,
		.sff_data_xfer = winbond_data_xfer,
		.cable_detect = ata_cable_40wire,
		.set_piomode = winbond_set_piomode,
		};

		/**
		* winbond_init_one - attach a winbond interface
		* @type: Type to display
		* @io: I/O port start
		* @irq: interrupt line
		* @fast: True if on a > 33Mhz VLB
		*
		* Register a VLB bus IDE interface. Such interfaces are PIO and we
		* assume do not support IRQ sharing.
		*/

		static __init int winbond_init_one(unsigned long port)
		{
		struct platform_device *pdev;
		u8 reg;
		int i, rc;

		reg = winbond_readcfg(port, 0x81);
		reg \|= 0x80; /* jumpered mode off */
		winbond_writecfg(port, 0x81, reg);
		reg = winbond_readcfg(port, 0x83);
		reg \|= 0xF0; /* local control */
		winbond_writecfg(port, 0x83, reg);
		reg = winbond_readcfg(port, 0x85);
		reg \|= 0xF0; /* programmable timing */
		winbond_writecfg(port, 0x85, reg);

		reg = winbond_readcfg(port, 0x81);

		if (!(reg & 0x03)) /* Disabled */
		return -ENODEV;

		for (i = 0; i < 2 ; i ++) {
		unsigned long cmd_port = 0x1F0 - (0x80 * i);
		unsigned long ctl_port = cmd_port + 0x206;
		struct ata_host *host;
		struct ata_port *ap;
		void __iomem cmd_addr, ctl_addr;

		if (!(reg & (1 << i)))
		continue;

		pdev = platform_device_register_simple(DRV_NAME, nr_winbond_host, NULL, 0);
		if (IS_ERR(pdev))
		return PTR_ERR(pdev);

		rc = -ENOMEM;
		host = ata_host_alloc(&pdev->dev, 1);
		if (!host)
		goto err_unregister;
		ap = host->ports[0];

		rc = -ENOMEM;
		cmd_addr = devm_ioport_map(&pdev->dev, cmd_port, 8);
		ctl_addr = devm_ioport_map(&pdev->dev, ctl_port, 1);
		if (!cmd_addr \|\| !ctl_addr)
		goto err_unregister;

		ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", cmd_port, ctl_port);

		ap->ops = &winbond_port_ops;
		ap->pio_mask = ATA_PIO4;
		ap->flags \|= ATA_FLAG_SLAVE_POSS;
		ap->ioaddr.cmd_addr = cmd_addr;
		ap->ioaddr.altstatus_addr = ctl_addr;
		ap->ioaddr.ctl_addr = ctl_addr;
		ata_sff_std_ports(&ap->ioaddr);

		/* hook in a private data structure per channel */
		host->private_data = &winbond_data[nr_winbond_host];
		winbond_data[nr_winbond_host].config = port;
		winbond_data[nr_winbond_host].platform_dev = pdev;

		/* activate */
		rc = ata_host_activate(host, 14 + i, ata_sff_interrupt, 0,
		&winbond_sht);
		if (rc)
		goto err_unregister;

		winbond_host[nr_winbond_host++] = dev_get_drvdata(&pdev->dev);
		}

		return 0;

		err_unregister:
		platform_device_unregister(pdev);
		return rc;
		}

		/**
		* winbond_init - attach winbond interfaces
		*
		* Attach winbond IDE interfaces by scanning the ports it may occupy.
		*/

		static __init int winbond_init(void)
		{
		static const unsigned long config[2] = { 0x130, 0x1B0 };

		int ct = 0;
		int i;

		if (probe_winbond == 0)
		return -ENODEV;

		/*
		* Check both base addresses
		*/

		for (i = 0; i < 2; i++) {
		if (probe_winbond & (1<<i)) {
		int ret = 0;
		unsigned long port = config[i];

		if (request_region(port, 2, "pata_winbond")) {
		ret = winbond_init_one(port);
		if (ret <= 0)
		release_region(port, 2);
		else ct+= ret;
		}
		}
		}
		if (ct != 0)
		return 0;
		return -ENODEV;
		}

		static __exit void winbond_exit(void)
		{
		int i;

		for (i = 0; i < nr_winbond_host; i++) {
		ata_host_detach(winbond_host[i]);
		release_region(winbond_data[i].config, 2);
		platform_device_unregister(winbond_data[i].platform_dev);
		}
		}

		MODULE_AUTHOR("Alan Cox");
		MODULE_DESCRIPTION("low-level driver for Winbond VL ATA");
		MODULE_LICENSE("GPL");
		MODULE_VERSION(DRV_VERSION);

		module_init(winbond_init);
		module_exit(winbond_exit);

		module_param(probe_winbond, int, 0);