Hi Grant,
Could you review my patch ?
With Best Regards,
-----------------------------------------
Tomoya MORINAGA
OKI SEMICONDUCTOR CO., LTD.
> -----Original Message-----
> From: Tomoya MORINAGA [mailto:[email protected]]
> Sent: Wednesday, January 26, 2011 5:07 PM
> To: David Brownell; Grant Likely;
> [email protected]; [email protected]
> Cc: [email protected]; [email protected];
> [email protected]; [email protected]; Tomoya MORINAGA
> Subject: [PATCH v2] spi_topcliff_pch: support new device ML7213 IOH
>
> Support ML7213 device of OKI SEMICONDUCTOR.
> ML7213 is companion chip of Intel Atom E6xx series for
> IVI(In-Vehicle Infotainment).
> ML7213 is completely compatible for Intel EG20T PCH.
>
> Signed-off-by: Tomoya MORINAGA <[email protected]>
> ---
> drivers/spi/Kconfig | 7 +-
> drivers/spi/spi_topcliff_pch.c | 450
> ++++++++++++++++++++++------------------
> 2 files changed, 250 insertions(+), 207 deletions(-)
>
> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index
> bb233a9..f36631c 100644
> --- a/drivers/spi/Kconfig
> +++ b/drivers/spi/Kconfig
> @@ -351,12 +351,17 @@ config SPI_TEGRA
> SPI driver for NVidia Tegra SoCs
>
> config SPI_TOPCLIFF_PCH
> - tristate "Topcliff PCH SPI Controller"
> + tristate "Intel EG20T PCH/OKI SEMICONDUCTOR ML7213 IOH
> SPI controller"
> depends on PCI
> help
> SPI driver for the Topcliff PCH (Platform Controller
> Hub) SPI bus
> used in some x86 embedded processors.
>
> + This driver also can be used for OKI SEMICONDUCTOR's
> ML7213 IOH which
> + is for IVI(In-Vehicle Infotainment) use.
> + ML7213 IOH is companion chip for Intel Atom E6xx series.
> + ML7213 IOH is completely compatible for Intel EG20T PCH.
> +
> config SPI_TXX9
> tristate "Toshiba TXx9 SPI controller"
> depends on GENERIC_GPIO && CPU_TX49XX
> diff --git a/drivers/spi/spi_topcliff_pch.c
> b/drivers/spi/spi_topcliff_pch.c index 79e48d4..81feb11 100644
> --- a/drivers/spi/spi_topcliff_pch.c
> +++ b/drivers/spi/spi_topcliff_pch.c
> @@ -26,6 +26,7 @@
> #include <linux/spi/spidev.h>
> #include <linux/module.h>
> #include <linux/device.h>
> +#include <linux/platform_device.h>
>
> /* Register offsets */
> #define PCH_SPCR 0x00 /* SPI control register */
> @@ -35,6 +36,7 @@
> #define PCH_SPDRR 0x10 /* SPI read data register */
> #define PCH_SSNXCR 0x18 /* SSN Expand Control
> Register */
> #define PCH_SRST 0x1C /* SPI reset register */
> +#define PCH_SPI_ADDRESS_SIZE 0x20
>
> #define PCH_SPSR_TFD 0x000007C0
> #define PCH_SPSR_RFD 0x0000F800
> @@ -88,6 +90,16 @@
> #define PCH_CLOCK_HZ 50000000
> #define PCH_MAX_SPBR 1023
>
> +/* Definition for ML7213 by OKI SEMICONDUCTOR */
> +#define PCI_VENDOR_ID_ROHM 0x10DB
> +#define PCI_DEVICE_ID_ML7213_SPI 0x802c
> +
> +/*
> +Set the number of SPI instance max
> +Intel EG20T PCH : 1ch
> +OKI SEMICONDUCTOR ML7213 IOH : 2ch
> +*/
> +#define PCH_SPI_MAX_DEV 2
>
> /**
> * struct pch_spi_data - Holds the SPI channel specific
> details @@ -121,6 +133,8 @@
> * @cur_trans: The current transfer
> that this SPI driver is
> * handling
> * @board_dat: Reference to the SPI
> device data structure
> + * @plat_dev: platform_device structure
> + * @ch: SPI channel number
> */
> struct pch_spi_data {
> void __iomem *io_remap_addr;
> @@ -144,6 +158,8 @@ struct pch_spi_data {
> struct spi_message *current_msg;
> struct spi_transfer *cur_trans;
> struct pch_spi_board_data *board_dat;
> + struct platform_device plat_dev;
> + int ch;
> };
>
> /**
> @@ -153,18 +169,21 @@ struct pch_spi_data {
> * @pci_req_sts: Status of pci_request_regions
> * @suspend_sts: Status of suspend
> * @data: Pointer to SPI channel data structure
> + * @num: The number of SPI device instance
> */
> struct pch_spi_board_data {
> struct pci_dev *pdev;
> u8 irq_reg_sts;
> u8 pci_req_sts;
> u8 suspend_sts;
> - struct pch_spi_data *data;
> + struct pch_spi_data *data[PCH_SPI_MAX_DEV];
> + int num;
> };
>
> static struct pci_device_id pch_spi_pcidev_id[] = {
> - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_GE_SPI)},
> - {0,}
> + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_GE_SPI), 1, },
> + { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7213_SPI), 2, },
> + { }
> };
>
> /**
> @@ -288,6 +307,7 @@ static irqreturn_t pch_spi_handler(int
> irq, void *dev_id)
> void __iomem *io_remap_addr;
> irqreturn_t ret = IRQ_NONE;
> struct pch_spi_board_data *board_dat = dev_id;
> + int i;
>
> if (board_dat->suspend_sts) {
> dev_dbg(&board_dat->pdev->dev,
> @@ -295,21 +315,21 @@ static irqreturn_t pch_spi_handler(int
> irq, void *dev_id)
> return IRQ_NONE;
> }
>
> - data = board_dat->data;
> - io_remap_addr = data->io_remap_addr;
> - spsr = io_remap_addr + PCH_SPSR;
> + for (i = 0; i < board_dat->num; i++) {
> + data = board_dat->data[i];
> + io_remap_addr = data->io_remap_addr;
> + spsr = io_remap_addr + PCH_SPSR;
> + reg_spsr_val = ioread32(spsr);
>
> - reg_spsr_val = ioread32(spsr);
> + /* Check if the interrupt is for SPI device */
> + if (reg_spsr_val & (SPSR_FI_BIT | SPSR_RFI_BIT)) {
> + pch_spi_handler_sub(data, reg_spsr_val,
> io_remap_addr);
> + ret = IRQ_HANDLED;
> + }
>
> - /* Check if the interrupt is for SPI device */
> - if (reg_spsr_val & (SPSR_FI_BIT | SPSR_RFI_BIT)) {
> - pch_spi_handler_sub(data, reg_spsr_val, io_remap_addr);
> - ret = IRQ_HANDLED;
> + dev_dbg(&board_dat->pdev->dev, "%s EXIT return
> value=%d\n",
> + __func__, ret);
> }
> -
> - dev_dbg(&board_dat->pdev->dev, "%s EXIT return value=%d\n",
> - __func__, ret);
> -
> return ret;
> }
>
> @@ -870,107 +890,63 @@ static void
> pch_spi_process_messages(struct work_struct *pwork)
>
> static void pch_spi_free_resources(struct pch_spi_board_data
> *board_dat) {
> + int i;
> +
> dev_dbg(&board_dat->pdev->dev, "%s ENTRY\n", __func__);
>
> /* free workqueue */
> - if (board_dat->data->wk != NULL) {
> - destroy_workqueue(board_dat->data->wk);
> - board_dat->data->wk = NULL;
> - dev_dbg(&board_dat->pdev->dev,
> - "%s destroy_workqueue invoked successfully\n",
> - __func__);
> + for (i = 0; i < board_dat->num; i++) {
> + if (board_dat->data[i]->wk != NULL) {
> + destroy_workqueue(board_dat->data[i]->wk);
> + board_dat->data[i]->wk = NULL;
> + dev_dbg(&board_dat->pdev->dev,
> + "%s destroy_workqueue invoked
> successfully\n",
> + __func__);
> + }
> }
>
> /* disable interrupts & free IRQ */
> if (board_dat->irq_reg_sts) {
> - /* disable interrupts */
> - pch_spi_setclr_reg(board_dat->data->master, PCH_SPCR, 0,
> - PCH_ALL);
> -
> - /* free IRQ */
> - free_irq(board_dat->pdev->irq, board_dat);
> -
> - dev_dbg(&board_dat->pdev->dev,
> - "%s free_irq invoked successfully\n", __func__);
> -
> - board_dat->irq_reg_sts = false;
> - }
> -
> - /* unmap PCI base address */
> - if (board_dat->data->io_remap_addr != 0) {
> - pci_iounmap(board_dat->pdev,
> board_dat->data->io_remap_addr);
> + for (i = 0; i < board_dat->num; i++) {
> + /* disable interrupts */
> +
> pch_spi_setclr_reg(board_dat->data[i]->master, PCH_SPCR,
> + 0, PCH_ALL);
>
> - board_dat->data->io_remap_addr = 0;
> + if (i == (board_dat->num - 1)) {
> + dev_dbg(&board_dat->pdev->dev,
> + "%s free_irq invoked
> successfully\n",
> + __func__);
>
> - dev_dbg(&board_dat->pdev->dev,
> - "%s pci_iounmap invoked
> successfully\n", __func__);
> - }
> -
> - /* release PCI region */
> - if (board_dat->pci_req_sts) {
> - pci_release_regions(board_dat->pdev);
> - dev_dbg(&board_dat->pdev->dev,
> - "%s pci_release_regions invoked successfully\n",
> - __func__);
> - board_dat->pci_req_sts = false;
> + board_dat->irq_reg_sts = false;
> + }
> + }
> }
> }
>
> -static int pch_spi_get_resources(struct pch_spi_board_data
> *board_dat)
> +static int pch_spi_get_resources(struct pch_spi_board_data
> *board_dat,
> +int num)
> {
> - void __iomem *io_remap_addr;
> - int retval;
> + int retval = 0;
> +
> dev_dbg(&board_dat->pdev->dev, "%s ENTRY\n", __func__);
>
> /* create workqueue */
> - board_dat->data->wk =
> create_singlethread_workqueue(KBUILD_MODNAME);
> - if (!board_dat->data->wk) {
> + board_dat->data[num]->wk =
> +
> create_singlethread_workqueue(KBUILD_MODNAME);
> +
> + if (!board_dat->data[num]->wk) {
> dev_err(&board_dat->pdev->dev,
> "%s create_singlet hread_workqueue
> failed\n", __func__);
> retval = -EBUSY;
> goto err_return;
> }
>
> - dev_dbg(&board_dat->pdev->dev,
> - "%s create_singlethread_workqueue success\n", __func__);
> -
> - retval = pci_request_regions(board_dat->pdev, KBUILD_MODNAME);
> - if (retval != 0) {
> - dev_err(&board_dat->pdev->dev,
> - "%s request_region failed\n", __func__);
> - goto err_return;
> - }
> -
> board_dat->pci_req_sts = true;
>
> - io_remap_addr = pci_iomap(board_dat->pdev, 1, 0);
> - if (io_remap_addr == 0) {
> - dev_err(&board_dat->pdev->dev,
> - "%s pci_iomap failed\n", __func__);
> - retval = -ENOMEM;
> - goto err_return;
> - }
> -
> - /* calculate base address for all channels */
> - board_dat->data->io_remap_addr = io_remap_addr;
> -
> /* reset PCH SPI h/w */
> - pch_spi_reset(board_dat->data->master);
> + pch_spi_reset(board_dat->data[num]->master);
> dev_dbg(&board_dat->pdev->dev,
> "%s pch_spi_reset invoked successfully\n", __func__);
>
> - /* register IRQ */
> - retval = request_irq(board_dat->pdev->irq, pch_spi_handler,
> - IRQF_SHARED, KBUILD_MODNAME, board_dat);
> - if (retval != 0) {
> - dev_err(&board_dat->pdev->dev,
> - "%s request_irq failed\n", __func__);
> - goto err_return;
> - }
> -
> - dev_dbg(&board_dat->pdev->dev, "%s request_irq returned=%d\n",
> - __func__, retval);
> -
> board_dat->irq_reg_sts = true;
> dev_dbg(&board_dat->pdev->dev, "%s
> data->irq_reg_sts=true\n", __func__);
>
> @@ -986,15 +962,105 @@ err_return:
> return retval;
> }
>
> -static int pch_spi_probe(struct pci_dev *pdev, const struct
> pci_device_id *id)
> +static int __devinit pch_spi_pd_probe(struct platform_device
> *plat_dev)
> {
> -
> + int ret;
> struct spi_master *master;
> + struct pch_spi_data *data = platform_get_drvdata(plat_dev);
> +
> + master = data->master;
> +
> + /* initialize members of SPI master */
> + master->bus_num = data->ch;
> + master->num_chipselect = PCH_MAX_CS;
> + master->setup = pch_spi_setup;
> + master->transfer = pch_spi_transfer;
> + data->master = master;
> + data->n_curnt_chip = 255;
> + data->status = STATUS_RUNNING;
> + INIT_LIST_HEAD(&data->queue);
> + spin_lock_init(&data->lock);
> + INIT_WORK(&data->work, pch_spi_process_messages);
> + init_waitqueue_head(&data->wait);
> +
> + ret = pch_spi_get_resources(data->board_dat, data->ch);
> + if (ret) {
> + dev_err(&plat_dev->dev, "%s fail(retval=%d)\n",
> __func__, ret);
> + goto err_spi_get_resources;
> + }
> +
> + pch_spi_set_master_mode(master);
> +
> + ret = spi_register_master(master);
> + if (ret != 0) {
> + dev_err(&plat_dev->dev,
> + "%s spi_register_master FAILED\n", __func__);
> + goto err_spi_reg_master;
> + }
> +
> + return 0;
> +
> +err_spi_reg_master:
> + pch_spi_free_resources(data->board_dat);
> +err_spi_get_resources:
> +
> + return ret;
> +}
> +
> +static int pch_spi_pd_remove(struct platform_device *plat_dev) {
> + struct pch_spi_data *data = platform_get_drvdata(plat_dev);
> +
> + spi_unregister_master(data->master);
> + pch_spi_free_resources(data->board_dat);
> + platform_set_drvdata(plat_dev, NULL);
> +
> + return 0;
> +}
> +
> +static struct platform_driver pch_spi_pd_driver = {
> + .driver = {
> + .name = "pch-spi",
> + .owner = THIS_MODULE,
> + },
> + .probe = pch_spi_pd_probe,
> + .remove = __devexit_p(pch_spi_pd_remove), };
> +
> +static void pch_spi_release_slot(struct device *dev) { } static int
> +pch_spi_register_slot(struct pch_spi_board_data *board_dat,
> + unsigned io_offset, const char
> *name, int ch) {
> + int err;
> +
> + board_dat->data[ch]->ch = ch;
> + board_dat->data[ch]->plat_dev.name = name;
> + board_dat->data[ch]->plat_dev.id = ch;
> + board_dat->data[ch]->board_dat = board_dat;
> + board_dat->data[ch]->plat_dev.dev.parent =
> &board_dat->pdev->dev;
> + board_dat->data[ch]->plat_dev.dev.release =
> pch_spi_release_slot;
> +
> + platform_set_drvdata(&board_dat->data[ch]->plat_dev,
> + board_dat->data[ch]);
> +
> + err = platform_device_register(&board_dat->data[ch]->plat_dev);
> + if (err) {
> + platform_device_put(&board_dat->data[ch]->plat_dev);
> + return err;
> + }
> +
> + return 0;
> +}
>
> +static int pch_spi_probe(struct pci_dev *pdev, const struct
> +pci_device_id *id) {
> + struct spi_master *master[PCH_SPI_MAX_DEV];
> struct pch_spi_board_data *board_dat;
> + void __iomem *io_remap_addr;
> int retval;
> -
> - dev_dbg(&pdev->dev, "%s ENTRY\n", __func__);
> + int i, j;
>
> /* allocate memory for private data */
> board_dat = kzalloc(sizeof(struct pch_spi_board_data),
> GFP_KERNEL); @@ -1002,14 +1068,9 @@ static int
> pch_spi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
> dev_err(&pdev->dev,
> " %s memory allocation for private data
> failed\n",
> __func__);
> - retval = -ENOMEM;
> - goto err_kmalloc;
> + return -ENOMEM;
> }
>
> - dev_dbg(&pdev->dev,
> - "%s memory allocation for private data
> success\n", __func__);
> -
> - /* enable PCI device */
> retval = pci_enable_device(pdev);
> if (retval != 0) {
> dev_err(&pdev->dev, "%s pci_enable_device
> FAILED\n", __func__); @@ -1017,128 +1078,97 @@ static int
> pch_spi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
> goto err_pci_en_device;
> }
>
> - dev_dbg(&pdev->dev, "%s pci_enable_device returned=%d\n",
> - __func__, retval);
> -
> + pci_set_drvdata(pdev, board_dat);
> board_dat->pdev = pdev;
> + board_dat->num = id->driver_data;
> +
> + for (i = 0; i < board_dat->num; i++) {
> + master[i] = spi_alloc_master(&pdev->dev,
> + sizeof(struct
> pch_spi_data));
> + if (master[i] == NULL) {
> + dev_err(&pdev->dev, "%s spi_alloc
> failed.\n", __func__);
> + retval = -ENOMEM;
> + goto err_spi_alloc;
> + }
> + board_dat->data[i] = spi_master_get_devdata(master[i]);
> + board_dat->data[i]->master = master[i];
> + }
>
> - /* alllocate memory for SPI master */
> - master = spi_alloc_master(&pdev->dev, sizeof(struct
> pch_spi_data));
> - if (master == NULL) {
> + io_remap_addr = pci_iomap(board_dat->pdev, 1, 0);
> + if (!io_remap_addr) {
> + dev_err(&board_dat->pdev->dev,
> + "%s pci_iomap failed\n", __func__);
> retval = -ENOMEM;
> - dev_err(&pdev->dev, "%s Fail.\n", __func__);
> - goto err_spi_alloc_master;
> + goto err_pci_iomap;
> }
>
> - dev_dbg(&pdev->dev,
> - "%s spi_alloc_master returned non NULL\n", __func__);
> -
> - /* initialize members of SPI master */
> - master->bus_num = -1;
> - master->num_chipselect = PCH_MAX_CS;
> - master->setup = pch_spi_setup;
> - master->transfer = pch_spi_transfer;
> - dev_dbg(&pdev->dev,
> - "%s transfer member of SPI master
> initialized\n", __func__);
> -
> - board_dat->data = spi_master_get_devdata(master);
> -
> - board_dat->data->master = master;
> - board_dat->data->n_curnt_chip = 255;
> - board_dat->data->board_dat = board_dat;
> - board_dat->data->status = STATUS_RUNNING;
> + retval = pci_request_regions(board_dat->pdev, KBUILD_MODNAME);
> + if (retval != 0) {
> + dev_err(&board_dat->pdev->dev,
> + "%s request_region failed\n", __func__);
> + goto err_req_reg;
> + }
>
> - INIT_LIST_HEAD(&board_dat->data->queue);
> - spin_lock_init(&board_dat->data->lock);
> - INIT_WORK(&board_dat->data->work, pch_spi_process_messages);
> - init_waitqueue_head(&board_dat->data->wait);
> + for (i = 0; i < board_dat->num; i++)
> + board_dat->data[i]->io_remap_addr = io_remap_addr +
> +
> (PCH_SPI_ADDRESS_SIZE * i);
>
> - /* allocate resources for PCH SPI */
> - retval = pch_spi_get_resources(board_dat);
> + retval = request_irq(pdev->irq, pch_spi_handler,
> + IRQF_SHARED, KBUILD_MODNAME, board_dat);
> if (retval) {
> - dev_err(&pdev->dev, "%s fail(retval=%d)\n",
> __func__, retval);
> - goto err_spi_get_resources;
> + dev_err(&board_dat->pdev->dev,
> + "%s request_irq failed\n", __func__);
> + goto err_req_irq;
> }
>
> - dev_dbg(&pdev->dev, "%s pch_spi_get_resources returned=%d\n",
> - __func__, retval);
> -
> - /* save private data in dev */
> - pci_set_drvdata(pdev, board_dat);
> - dev_dbg(&pdev->dev, "%s invoked pci_set_drvdata\n", __func__);
> -
> - /* set master mode */
> - pch_spi_set_master_mode(master);
> - dev_dbg(&pdev->dev,
> - "%s invoked pch_spi_set_master_mode\n", __func__);
> + platform_driver_register(&pch_spi_pd_driver);
>
> - /* Register the controller with the SPI core. */
> - retval = spi_register_master(master);
> - if (retval != 0) {
> - dev_err(&pdev->dev,
> - "%s spi_register_master FAILED\n", __func__);
> - goto err_spi_reg_master;
> + for (i = 0; i < board_dat->num; i++) {
> + retval = pch_spi_register_slot(board_dat,
> PCH_SPI_ADDRESS_SIZE,
> + "pch-spi", i);
> + if (retval)
> + goto err_spi_reg;
> }
>
> - dev_dbg(&pdev->dev, "%s spi_register_master returned=%d\n",
> - __func__, retval);
> -
> -
> return 0;
>
> -err_spi_reg_master:
> - spi_unregister_master(master);
> -err_spi_get_resources:
> -err_spi_alloc_master:
> - spi_master_put(master);
> +err_spi_reg:
> + platform_driver_unregister(&pch_spi_pd_driver);
> + free_irq(pdev->irq, board_dat);
> +err_req_irq:
> + pci_release_regions(board_dat->pdev);
> + board_dat->pci_req_sts = false;
> +err_req_reg:
> + pci_iounmap(board_dat->pdev, board_dat->data[0]->io_remap_addr);
> +err_pci_iomap:
> +err_spi_alloc:
> + for (j = 0; j < i; j++)
> + spi_master_put(master[j]);
> pci_disable_device(pdev);
> err_pci_en_device:
> kfree(board_dat);
> -err_kmalloc:
> +
> return retval;
> }
>
> static void pch_spi_remove(struct pci_dev *pdev) {
> struct pch_spi_board_data *board_dat = pci_get_drvdata(pdev);
> - int count;
> + int i;
>
> - dev_dbg(&pdev->dev, "%s ENTRY\n", __func__);
> -
> - if (!board_dat) {
> - dev_err(&pdev->dev,
> - "%s pci_get_drvdata returned NULL\n", __func__);
> - return;
> - }
> -
> - /* check for any pending messages; no action is taken
> if the queue
> - * is still full; but at least we tried. Unload anyway */
> - count = 500;
> - spin_lock(&board_dat->data->lock);
> - board_dat->data->status = STATUS_EXITING;
> - while ((list_empty(&board_dat->data->queue) == 0) && --count) {
> - dev_dbg(&board_dat->pdev->dev, "%s :queue not empty\n",
> - __func__);
> - spin_unlock(&board_dat->data->lock);
> - msleep(PCH_SLEEP_TIME);
> - spin_lock(&board_dat->data->lock);
> - }
> - spin_unlock(&board_dat->data->lock);
> + for (i = 0; i < board_dat->num; i++)
> +
> platform_device_unregister(&board_dat->data[i]->plat_dev);
>
> - /* Free resources allocated for PCH SPI */
> - pch_spi_free_resources(board_dat);
> + platform_driver_unregister(&pch_spi_pd_driver);
> + free_irq(pdev->irq, board_dat);
> + pci_release_regions(board_dat->pdev);
> + pci_iounmap(board_dat->pdev, board_dat->data[0]->io_remap_addr);
>
> - spi_unregister_master(board_dat->data->master);
> + for (i = 0; i < board_dat->num; i++)
> + spi_master_put(board_dat->data[i]->master);
>
> - /* free memory for private data */
> - kfree(board_dat);
> -
> - pci_set_drvdata(pdev, NULL);
> -
> - /* disable PCI device */
> pci_disable_device(pdev);
> -
> - dev_dbg(&pdev->dev, "%s invoked pci_disable_device\n",
> __func__);
> + kfree(board_dat);
> }
>
> #ifdef CONFIG_PM
> @@ -1146,6 +1176,7 @@ static int pch_spi_suspend(struct
> pci_dev *pdev, pm_message_t state) {
> u8 count;
> int retval;
> + int i;
>
> struct pch_spi_board_data *board_dat = pci_get_drvdata(pdev);
>
> @@ -1162,25 +1193,29 @@ static int pch_spi_suspend(struct
> pci_dev *pdev, pm_message_t state)
>
> /* check if the current message is processed:
> Only after thats done the transfer will be suspended */
> - count = 255;
> - while ((--count) > 0) {
> - if (!(board_dat->data->bcurrent_msg_processing)) {
> - dev_dbg(&pdev->dev, "%s
> board_dat->data->bCurrent_"
> - "msg_processing = false\n", __func__);
> - break;
> - } else {
> - dev_dbg(&pdev->dev, "%s
> board_dat->data->bCurrent_msg_"
> - "processing = true\n", __func__);
> + for (i = 0; i < board_dat->num; i++) {
> + count = 255;
> + while ((--count) > 0) {
> + if
> (!(board_dat->data[i]->bcurrent_msg_processing)) {
> + dev_dbg(&pdev->dev, "%s
> board_dat->data->bCurre"
> +
> "nt_msg_processing=false\n", __func__);
> + break;
> + } else {
> + dev_dbg(&pdev->dev, "%s
> board_dat->data->bCurre"
> +
> "nt_msg_processing=true\n", __func__);
> + }
> + msleep(PCH_SLEEP_TIME);
> }
> - msleep(PCH_SLEEP_TIME);
> }
>
> /* Free IRQ */
> if (board_dat->irq_reg_sts) {
> /* disable all interrupts */
> - pch_spi_setclr_reg(board_dat->data->master, PCH_SPCR, 0,
> - PCH_ALL);
> - pch_spi_reset(board_dat->data->master);
> + for (i = 0; i < board_dat->num; i++) {
> +
> pch_spi_setclr_reg(board_dat->data[i]->master, PCH_SPCR,
> + 0, PCH_ALL);
> + pch_spi_reset(board_dat->data[i]->master);
> + }
>
> free_irq(board_dat->pdev->irq, board_dat);
>
> @@ -1221,6 +1256,7 @@ static int pch_spi_suspend(struct
> pci_dev *pdev, pm_message_t state) static int
> pch_spi_resume(struct pci_dev *pdev) {
> int retval;
> + int i;
>
> struct pch_spi_board_data *board = pci_get_drvdata(pdev);
> dev_dbg(&pdev->dev, "%s ENTRY\n", __func__); @@ -1259,8
> +1295,10 @@ static int pch_spi_resume(struct pci_dev *pdev)
> board->irq_reg_sts = true;
>
> /* reset PCH SPI h/w */
> - pch_spi_reset(board->data->master);
> - pch_spi_set_master_mode(board->data->master);
> + for (i = 0; i < board->num; i++) {
> + pch_spi_reset(board->data[i]->master);
> +
> pch_spi_set_master_mode(board->data[i]->master);
> + }
>
> /* set suspend status to false */
> board->suspend_sts = false;
> --
> 1.7.3.4
>