On Thu, 03 Sep 2015, Aaron Sierra wrote:
> The lpc_ich_cells array gives the wrong impression about the
> relationship between the watchdog and GPIO devices. They are
> completely distinct devices, so this patch separates the
> array into distinct mfd_cell structs per device.
>
> A side effect of removing the array, is that the lpc_cells enum
> is no longer needed.
>
> Signed-off-by: Aaron Sierra <asie...@xes-inc.com>
> ---
> drivers/mfd/lpc_ich.c | 42 ++++++++++++++++++------------------------
> 1 file changed, 18 insertions(+), 24 deletions(-)
You need to rebase this. It doesn't apply.
> diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
> index 8de3439..7a01d430 100644
> --- a/drivers/mfd/lpc_ich.c
> +++ b/drivers/mfd/lpc_ich.c
> @@ -131,24 +131,18 @@ static struct resource gpio_ich_res[] = {
> },
> };
>
> -enum lpc_cells {
> - LPC_WDT = 0,
> - LPC_GPIO,
> +static struct mfd_cell lpc_ich_wdt_cell = {
> + .name = "iTCO_wdt",
> + .num_resources = ARRAY_SIZE(wdt_ich_res),
> + .resources = wdt_ich_res,
> + .ignore_resource_conflicts = true,
> };
>
> -static struct mfd_cell lpc_ich_cells[] = {
> - [LPC_WDT] = {
> - .name = "iTCO_wdt",
> - .num_resources = ARRAY_SIZE(wdt_ich_res),
> - .resources = wdt_ich_res,
> - .ignore_resource_conflicts = true,
> - },
> - [LPC_GPIO] = {
> - .name = "gpio_ich",
> - .num_resources = ARRAY_SIZE(gpio_ich_res),
> - .resources = gpio_ich_res,
> - .ignore_resource_conflicts = true,
> - },
> +static struct mfd_cell lpc_ich_gpio_cell = {
> + .name = "gpio_ich",
> + .num_resources = ARRAY_SIZE(gpio_ich_res),
> + .resources = gpio_ich_res,
> + .ignore_resource_conflicts = true,
> };
>
> /* chipset related info */
> @@ -881,7 +875,7 @@ static int lpc_ich_init_gpio(struct pci_dev *dev)
> base_addr = base_addr_cfg & 0x0000ff80;
> if (!base_addr) {
> dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n");
> - lpc_ich_cells[LPC_GPIO].num_resources--;
> + lpc_ich_gpio_cell.num_resources--;
> goto gpe0_done;
> }
>
> @@ -895,7 +889,7 @@ static int lpc_ich_init_gpio(struct pci_dev *dev)
> * the platform_device subsystem doesn't see this resource
> * or it will register an invalid region.
> */
> - lpc_ich_cells[LPC_GPIO].num_resources--;
> + lpc_ich_gpio_cell.num_resources--;
> acpi_conflict = true;
> } else {
> lpc_ich_enable_acpi_space(dev);
> @@ -933,14 +927,14 @@ gpe0_done:
> lpc_chipset_info[priv->chipset].use_gpio = ret;
> lpc_ich_enable_gpio_space(dev);
>
> - lpc_ich_finalize_cell(dev, &lpc_ich_cells[LPC_GPIO]);
> + lpc_ich_finalize_cell(dev, &lpc_ich_gpio_cell);
> ret = mfd_add_devices(&dev->dev, PLATFORM_DEVID_AUTO,
> - &lpc_ich_cells[LPC_GPIO], 1, NULL, 0, NULL);
> + &lpc_ich_gpio_cell, 1, NULL, 0, NULL);
>
> gpio_done:
> if (acpi_conflict)
> pr_warn("Resource conflict(s) found affecting %s\n",
> - lpc_ich_cells[LPC_GPIO].name);
> + lpc_ich_gpio_cell.name);
> return ret;
> }
>
> @@ -984,7 +978,7 @@ static int lpc_ich_init_wdt(struct pci_dev *dev)
> */
> if (lpc_chipset_info[priv->chipset].iTCO_version == 1) {
> /* Don't register iomem for TCO ver 1 */
> - lpc_ich_cells[LPC_WDT].num_resources--;
> + lpc_ich_wdt_cell.num_resources--;
> } else if (lpc_chipset_info[priv->chipset].iTCO_version == 2) {
> pci_read_config_dword(dev, RCBABASE, &base_addr_cfg);
> base_addr = base_addr_cfg & 0xffffc000;
> @@ -1007,9 +1001,9 @@ static int lpc_ich_init_wdt(struct pci_dev *dev)
> res->end = base_addr + ACPIBASE_PMC_END;
> }
>
> - lpc_ich_finalize_cell(dev, &lpc_ich_cells[LPC_WDT]);
> + lpc_ich_finalize_cell(dev, &lpc_ich_wdt_cell);
> ret = mfd_add_devices(&dev->dev, PLATFORM_DEVID_AUTO,
> - &lpc_ich_cells[LPC_WDT], 1, NULL, 0, NULL);
> + &lpc_ich_wdt_cell, 1, NULL, 0, NULL);
>
> wdt_done:
> return ret;
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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