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Message-Id: <1339376279-16753-2-git-send-email-dciminaghi@mail.gnudd.com>
Date: Mon, 11 Jun 2012 02:57:46 +0200
From: Davide Ciminaghi <dciminaghi@...l.gnudd.com>
To: linux-kernel@...r.kernel.org
Cc: sameo@...ux.intel.com, rubini@...dd.com,
Davide Ciminaghi <ciminaghi@...dd.com>
Subject: [PATCH 01/14] sta2x11 mfd : also deal with PCI_DEVICE_ID_STMICRO_VIC.
From: Davide Ciminaghi <ciminaghi@...dd.com>
Such device includes the apb-soc registers (bar #1), access to
which will be needed by the common clk framework implementation.
Signed-off-by: Davide Ciminaghi <ciminaghi@...dd.com>
---
drivers/mfd/sta2x11-mfd.c | 120 ++++++++++++++++++++++++++++++++++++++-------
1 files changed, 102 insertions(+), 18 deletions(-)
diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c
index d31fed0..5c950e8 100644
--- a/drivers/mfd/sta2x11-mfd.c
+++ b/drivers/mfd/sta2x11-mfd.c
@@ -281,12 +281,14 @@ static int __init sta2x11_apbreg_init(void)
}
/*
- * What follows is the PCI device that hosts the above two pdevs.
+ * What follows are the PCI devices that host the above pdevs.
* Each logic block is 4kB and they are all consecutive: we use this info.
*/
-/* Bar 0 */
-enum bar0_cells {
+/* Mfd 0 device */
+
+/* Mfd 0, Bar 0 */
+enum mfd0_bar0_cells {
STA2X11_GPIO_0 = 0,
STA2X11_GPIO_1,
STA2X11_GPIO_2,
@@ -295,8 +297,8 @@ enum bar0_cells {
STA2X11_SCR,
STA2X11_TIME,
};
-/* Bar 1 */
-enum bar1_cells {
+/* Mfd 0 , Bar 1 */
+enum mfd0_bar1_cells {
STA2X11_APBREG = 0,
};
#define CELL_4K(_name, _cell) { \
@@ -330,17 +332,46 @@ static const __devinitconst struct resource apbreg_resources[] = {
#define DEV(_name, _r) \
{ .name = _name, .num_resources = ARRAY_SIZE(_r), .resources = _r, }
-static __devinitdata struct mfd_cell sta2x11_mfd_bar0[] = {
+static __devinitdata struct mfd_cell sta2x11_mfd0_bar0[] = {
DEV("sta2x11-gpio", gpio_resources), /* offset 0: we add pdata later */
DEV("sta2x11-sctl", sctl_resources),
DEV("sta2x11-scr", scr_resources),
DEV("sta2x11-time", time_resources),
};
-static __devinitdata struct mfd_cell sta2x11_mfd_bar1[] = {
+static __devinitdata struct mfd_cell sta2x11_mfd0_bar1[] = {
DEV("sta2x11-apbreg", apbreg_resources),
};
+/* Mfd 1 devices */
+
+/* Mfd 1, Bar 0 */
+enum mfd1_bar0_cells {
+ STA2X11_VIC = 0,
+};
+
+/* Mfd 1, Bar 1 */
+enum mfd1_bar1_cells {
+ STA2X11_APB_SOC_REGS = 0,
+};
+
+static const __devinitconst struct resource vic_resources[] = {
+ CELL_4K("sta2x11-vic", STA2X11_VIC),
+};
+
+static const __devinitconst struct resource apb_soc_regs_resources[] = {
+ CELL_4K("sta2x11-apb-soc-regs", STA2X11_APB_SOC_REGS),
+};
+
+static __devinitdata struct mfd_cell sta2x11_mfd1_bar0[] = {
+ DEV("sta2x11-vic", vic_resources),
+};
+
+static __devinitdata struct mfd_cell sta2x11_mfd1_bar1[] = {
+ DEV("sta2x11-apb-soc-regs", apb_soc_regs_resources),
+};
+
+
static int sta2x11_mfd_suspend(struct pci_dev *pdev, pm_message_t state)
{
pci_save_state(pdev);
@@ -363,10 +394,63 @@ static int sta2x11_mfd_resume(struct pci_dev *pdev)
return 0;
}
+struct sta2x11_mfd_bar_setup_data {
+ struct mfd_cell *cells;
+ int ncells;
+};
+
+struct sta2x11_mfd_setup_data {
+ struct sta2x11_mfd_bar_setup_data bars[2];
+};
+
+#define STA2X11_MFD0 0
+#define STA2X11_MFD1 1
+
+static struct sta2x11_mfd_setup_data mfd_setup_data[] = {
+ /* Mfd 0: gpio, sctl, scr, timers / apbregs */
+ [STA2X11_MFD0] = {
+ .bars = {
+ [0] = {
+ .cells = sta2x11_mfd0_bar0,
+ .ncells = ARRAY_SIZE(sta2x11_mfd0_bar0),
+ },
+ [1] = {
+ .cells = sta2x11_mfd0_bar1,
+ .ncells = ARRAY_SIZE(sta2x11_mfd0_bar1),
+ },
+ },
+ },
+ /* Mfd 1: vic / apb-soc-regs */
+ [STA2X11_MFD1] = {
+ .bars = {
+ [0] = {
+ .cells = sta2x11_mfd1_bar0,
+ .ncells = ARRAY_SIZE(sta2x11_mfd1_bar0),
+ },
+ [1] = {
+ .cells = sta2x11_mfd1_bar1,
+ .ncells = ARRAY_SIZE(sta2x11_mfd1_bar1),
+ },
+ },
+ },
+};
+
+static void __devinit sta2x11_mfd_setup(struct pci_dev *pdev,
+ struct sta2x11_mfd_setup_data *sd)
+{
+ int i, j;
+ for (i = 0; i < ARRAY_SIZE(sd->bars); i++)
+ for (j = 0; j < sd->bars[i].ncells; j++) {
+ sd->bars[i].cells[j].pdata_size = sizeof(pdev);
+ sd->bars[i].cells[j].platform_data = &pdev;
+ }
+}
+
static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev,
const struct pci_device_id *pci_id)
{
- int err, i;
+ int err;
+ struct sta2x11_mfd_setup_data *setup_data;
struct sta2x11_gpio_pdata *gpio_data;
dev_info(&pdev->dev, "%s\n", __func__);
@@ -381,6 +465,10 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev,
if (err)
dev_info(&pdev->dev, "Enable msi failed\n");
+ setup_data = pci_id->device == PCI_DEVICE_ID_STMICRO_GPIO ?
+ &mfd_setup_data[STA2X11_MFD0] :
+ &mfd_setup_data[STA2X11_MFD1];
+
/* Read gpio config data as pci device's platform data */
gpio_data = dev_get_platdata(&pdev->dev);
if (!gpio_data)
@@ -392,20 +480,15 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev,
pdev, &pdev);
/* platform data is the pci device for all of them */
- for (i = 0; i < ARRAY_SIZE(sta2x11_mfd_bar0); i++) {
- sta2x11_mfd_bar0[i].pdata_size = sizeof(pdev);
- sta2x11_mfd_bar0[i].platform_data = &pdev;
- }
- sta2x11_mfd_bar1[0].pdata_size = sizeof(pdev);
- sta2x11_mfd_bar1[0].platform_data = &pdev;
+ sta2x11_mfd_setup(pdev, setup_data);
/* Record this pdev before mfd_add_devices: their probe looks for it */
sta2x11_mfd_add(pdev, GFP_ATOMIC);
err = mfd_add_devices(&pdev->dev, -1,
- sta2x11_mfd_bar0,
- ARRAY_SIZE(sta2x11_mfd_bar0),
+ setup_data->bars[0].cells,
+ setup_data->bars[0].ncells,
&pdev->resource[0],
0);
if (err) {
@@ -414,8 +497,8 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev,
}
err = mfd_add_devices(&pdev->dev, -1,
- sta2x11_mfd_bar1,
- ARRAY_SIZE(sta2x11_mfd_bar1),
+ setup_data->bars[1].cells,
+ setup_data->bars[1].ncells,
&pdev->resource[1],
0);
if (err) {
@@ -434,6 +517,7 @@ err_disable:
static DEFINE_PCI_DEVICE_TABLE(sta2x11_mfd_tbl) = {
{PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_GPIO)},
+ {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_VIC)},
{0,},
};
--
1.7.9.1
--
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