On Thu, 2016-11-10 at 17:00 +0800, Tan Jui Nee wrote:
> This driver uses the P2SB hide/unhide mechanism cooperatively
> to pass the PCI BAR address to the gpio platform driver.
@@ -161,6 +161,10 @@ obj-$(CONFIG_MFD_INTEL_QUARK_I2C_GPIO) +=
> intel_quark_i2c_gpio.o
> obj-$(CONFIG_LPC_SCH)
> += lpc_sch.o
> lpc_ich-objs := lpc_ich_core.o
> obj-$(CONFIG_LPC_ICH) += lpc_ich.o
> +lpc_ich-objs := lpc_ich_core.o
Once I pointed out on this.
> @@ -0,0 +1,120 @@
> +/*
> + * Intel Apollo Lake In-Vehicle Infotainment (IVI) systems used in
> cars support
> + *
> + * Copyright (C) 2016 Intel Corporation
> + *
> + * Author: Tan, Jui Nee <jui.nee.tan@xxxxxxxxx>
> + *
> + * This program is free software; you can redistribute it and/or
> modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include <asm/p2sb.h>
> +#include <linux/pci.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/lpc_ich.h>
> +#include <linux/pinctrl/pinctrl.h>
Perhaps some order like
#include <linux/mfd/core.h>
#include <linux/mfd/lpc_ich.h>
#include <linux/pci.h>
#include <linux/pinctrl/pinctrl.h>
#include <asm/p2sb.h>
> +
> +#include "lpc_ich_apl.h"
> +int lpc_ich_add_gpio(struct pci_dev *dev, enum lpc_chipsets chipset)
> +{
> + unsigned int i;
> + int ret;
> + struct resource base;
Reversed tree, please:
struct resource base;
unsigned int i;
int ret;
> +
> + if (chipset != LPC_APL)
> + return -ENODEV;
> + /*
> + * Apollo lake, has not 1, but 4 gpio controllers,
> + * handle it a bit differently.
> + */
> +
> + ret = p2sb_bar(dev, PCI_DEVFN(PCI_IDSEL_P2SB, 0), &base);
> + if (ret)
> + goto warn_continue;
> +
> + for (i = 0; i < APL_GPIO_COMMUNITY_MAX; i++) {
> + struct resource *res = &apl_gpio_io_res[i];
> +
> + /* Fill MEM resource */
> + res->start += base.start;
> + res->end += base.start;
> + res->flags = base.flags;
> +
> + res++;
> + }
> +
> + ret = mfd_add_devices(&dev->dev, 0,
> + apl_gpio_devices, ARRAY_SIZE(apl_gpio_devices),
> + NULL, 0, NULL);
> +
>
> + if (ret)
> +warn_continue:
Better if you put label before if for sake of readability. I pointed
once to this.
> + dev_warn(&dev->dev,
> + "Failed to add Apollo Lake GPIO: %d\n",
> + ret);
> +
> + return ret;
> +}
--
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy
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