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Date: Mon, 2 Dec 2013 16:20:00 -0800
From: David Cohen <david.a.cohen@...ux.intel.com>
To: matthew.garrett@...ula.com
Cc: platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
David Cohen <david.a.cohen@...ux.intel.com>
Subject: [PATCH 1/2] ipc: simplify platform data approach
This patch removes the unnecessary enum for platform type to handle the
array of pdatas. We can set pdata directly to pci_device_id struct
instead.
Signed-off-by: David Cohen <david.a.cohen@...ux.intel.com>
---
drivers/platform/x86/intel_scu_ipc.c | 84 +++++++++++++++++-------------------
1 file changed, 40 insertions(+), 44 deletions(-)
diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 60ea476a9130..259969d31055 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -62,13 +62,6 @@
#define IPC_RWBUF_SIZE 20 /* IPC Read buffer Size */
#define IPC_IOC 0x100 /* IPC command register IOC bit */
-enum {
- SCU_IPC_LINCROFT,
- SCU_IPC_PENWELL,
- SCU_IPC_CLOVERVIEW,
- SCU_IPC_TANGIER,
-};
-
/* intel scu ipc driver data*/
struct intel_scu_ipc_pdata_t {
u32 ipc_base;
@@ -78,35 +71,29 @@ struct intel_scu_ipc_pdata_t {
u8 irq_mode;
};
-static struct intel_scu_ipc_pdata_t intel_scu_ipc_pdata[] = {
- [SCU_IPC_LINCROFT] = {
- .ipc_base = 0xff11c000,
- .i2c_base = 0xff12b000,
- .ipc_len = 0x100,
- .i2c_len = 0x10,
- .irq_mode = 0,
- },
- [SCU_IPC_PENWELL] = {
- .ipc_base = 0xff11c000,
- .i2c_base = 0xff12b000,
- .ipc_len = 0x100,
- .i2c_len = 0x10,
- .irq_mode = 1,
- },
- [SCU_IPC_CLOVERVIEW] = {
- .ipc_base = 0xff11c000,
- .i2c_base = 0xff12b000,
- .ipc_len = 0x100,
- .i2c_len = 0x10,
- .irq_mode = 1,
- },
- [SCU_IPC_TANGIER] = {
- .ipc_base = 0xff009000,
- .i2c_base = 0xff00d000,
- .ipc_len = 0x100,
- .i2c_len = 0x10,
- .irq_mode = 0,
- },
+static struct intel_scu_ipc_pdata_t intel_scu_ipc_lincroft_pdata = {
+ .ipc_base = 0xff11c000,
+ .i2c_base = 0xff12b000,
+ .ipc_len = 0x100,
+ .i2c_len = 0x10,
+ .irq_mode = 0,
+};
+
+/* Penwell and Cloverview */
+static struct intel_scu_ipc_pdata_t intel_scu_ipc_penwell_pdata = {
+ .ipc_base = 0xff11c000,
+ .i2c_base = 0xff12b000,
+ .ipc_len = 0x100,
+ .i2c_len = 0x10,
+ .irq_mode = 1,
+};
+
+static struct intel_scu_ipc_pdata_t intel_scu_ipc_tangier_pdata = {
+ .ipc_base = 0xff009000,
+ .i2c_base = 0xff00d000,
+ .ipc_len = 0x100,
+ .i2c_len = 0x10,
+ .irq_mode = 0,
};
static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id);
@@ -583,15 +570,14 @@ static irqreturn_t ioc(int irq, void *dev_id)
*/
static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
- int err, pid;
+ int err;
struct intel_scu_ipc_pdata_t *pdata;
resource_size_t pci_resource;
if (ipcdev.pdev) /* We support only one SCU */
return -EBUSY;
- pid = id->driver_data;
- pdata = &intel_scu_ipc_pdata[pid];
+ pdata = (struct intel_scu_ipc_pdata_t *)id->driver_data;
ipcdev.pdev = pci_dev_get(dev);
ipcdev.irq_mode = pdata->irq_mode;
@@ -650,11 +636,21 @@ static void ipc_remove(struct pci_dev *pdev)
}
static DEFINE_PCI_DEVICE_TABLE(pci_ids) = {
- {PCI_VDEVICE(INTEL, 0x082a), SCU_IPC_LINCROFT},
- {PCI_VDEVICE(INTEL, 0x080e), SCU_IPC_PENWELL},
- {PCI_VDEVICE(INTEL, 0x08ea), SCU_IPC_CLOVERVIEW},
- {PCI_VDEVICE(INTEL, 0x11a0), SCU_IPC_TANGIER},
- { 0,}
+ {
+ PCI_VDEVICE(INTEL, 0x082a),
+ (kernel_ulong_t)&intel_scu_ipc_lincroft_pdata,
+ }, {
+ PCI_VDEVICE(INTEL, 0x080e),
+ (kernel_ulong_t)&intel_scu_ipc_penwell_pdata,
+ }, {
+ PCI_VDEVICE(INTEL, 0x08ea),
+ (kernel_ulong_t)&intel_scu_ipc_penwell_pdata,
+ }, {
+ PCI_VDEVICE(INTEL, 0x11a0),
+ (kernel_ulong_t)&intel_scu_ipc_tangier_pdata,
+ }, {
+ 0,
+ }
};
MODULE_DEVICE_TABLE(pci, pci_ids);
--
1.8.4.2
--
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