ACPI / LPSS: constify device descriptors

The device descriptors are never written to -- even pointed to as
'const' from struct lpss_private_data. Make them r/o for real.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 37fb190..569ee09 100644 (file)
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -129,50 +129,50 @@ static void byt_i2c_setup(struct lpss_private_data *pdata)
        writel(0, pdata->mmio_base + LPSS_I2C_ENABLE);
 }
 
-static struct lpss_device_desc lpt_dev_desc = {
+static const struct lpss_device_desc lpt_dev_desc = {
        .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR,
        .prv_offset = 0x800,
 };
 
-static struct lpss_device_desc lpt_i2c_dev_desc = {
+static const struct lpss_device_desc lpt_i2c_dev_desc = {
        .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_LTR,
        .prv_offset = 0x800,
 };
 
-static struct lpss_device_desc lpt_uart_dev_desc = {
+static const struct lpss_device_desc lpt_uart_dev_desc = {
        .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR,
        .clk_con_id = "baudclk",
        .prv_offset = 0x800,
        .setup = lpss_uart_setup,
 };
 
-static struct lpss_device_desc lpt_sdio_dev_desc = {
+static const struct lpss_device_desc lpt_sdio_dev_desc = {
        .flags = LPSS_LTR,
        .prv_offset = 0x1000,
        .prv_size_override = 0x1018,
 };
 
-static struct lpss_device_desc byt_pwm_dev_desc = {
+static const struct lpss_device_desc byt_pwm_dev_desc = {
        .flags = LPSS_SAVE_CTX,
 };
 
-static struct lpss_device_desc byt_uart_dev_desc = {
+static const struct lpss_device_desc byt_uart_dev_desc = {
        .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX,
        .clk_con_id = "baudclk",
        .prv_offset = 0x800,
        .setup = lpss_uart_setup,
 };
 
-static struct lpss_device_desc byt_spi_dev_desc = {
+static const struct lpss_device_desc byt_spi_dev_desc = {
        .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX,
        .prv_offset = 0x400,
 };
 
-static struct lpss_device_desc byt_sdio_dev_desc = {
+static const struct lpss_device_desc byt_sdio_dev_desc = {
        .flags = LPSS_CLK,
 };
 
-static struct lpss_device_desc byt_i2c_dev_desc = {
+static const struct lpss_device_desc byt_i2c_dev_desc = {
        .flags = LPSS_CLK | LPSS_SAVE_CTX,
        .prv_offset = 0x800,
        .setup = byt_i2c_setup,
@@ -323,14 +323,14 @@ out:
 static int acpi_lpss_create_device(struct acpi_device *adev,
                                   const struct acpi_device_id *id)
 {
-       struct lpss_device_desc *dev_desc;
+       const struct lpss_device_desc *dev_desc;
        struct lpss_private_data *pdata;
        struct resource_entry *rentry;
        struct list_head resource_list;
        struct platform_device *pdev;
        int ret;
 
-       dev_desc = (struct lpss_device_desc *)id->driver_data;
+       dev_desc = (const struct lpss_device_desc *)id->driver_data;
        if (!dev_desc) {
                pdev = acpi_create_platform_device(adev);
                return IS_ERR_OR_NULL(pdev) ? PTR_ERR(pdev) : 1;