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    SubjectRe: [RFC PATCH 2/11] input: RMI4 core bus and sensor drivers.
    Hi Christopher,

    On Thursday 22 December 2011 07:39 AM, Christopher Heiny wrote:
    > Signed-off-by: Christopher Heiny <cheiny@synaptics.com>
    >
    > Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
    > Cc: Linus Walleij <linus.walleij@stericsson.com>
    > Cc: Naveen Kumar Gaddipati <naveen.gaddipati@stericsson.com>
    > Cc: Joeri de Gram <j.de.gram@gmail.com>
    >
    > ---
    >
    > drivers/input/rmi4/rmi_bus.c | 436 ++++++++++++
    > drivers/input/rmi4/rmi_driver.c | 1488 +++++++++++++++++++++++++++++++++++++++
    > drivers/input/rmi4/rmi_driver.h | 97 +++
    > 3 files changed, 2021 insertions(+), 0 deletions(-)
    >
    > diff --git a/drivers/input/rmi4/rmi_bus.c b/drivers/input/rmi4/rmi_bus.c
    > new file mode 100644
    > index 0000000..e32d4ad
    > --- /dev/null
    > +++ b/drivers/input/rmi4/rmi_bus.c
    > @@ -0,0 +1,436 @@
    > +/*
    > + * Copyright (c) 2011 Synaptics Incorporated
    > + * Copyright (c) 2011 Unixphere
    > + *
    > + * This program is free software; you can redistribute it and/or modify
    > + * it under the terms of the GNU General Public License as published by
    > + * the Free Software Foundation; either version 2 of the License, or
    > + * (at your option) any later version.
    > + *
    > + * This program is distributed in the hope that it will be useful,
    > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    > + * GNU General Public License for more details.
    > + *
    > + * You should have received a copy of the GNU General Public License
    > + * along with this program; if not, write to the Free Software
    > + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    > + */
    > +#include <linux/kernel.h>
    > +#include <linux/device.h>
    > +#include <linux/pm.h>
    > +#include <linux/slab.h>
    > +#include <linux/list.h>
    > +#include <linux/rmi.h>
    > +
    > +DEFINE_MUTEX(rmi_bus_mutex);
    > +
    > +static struct rmi_function_list {
    > + struct list_head list;
    > + struct rmi_function_handler *fh;
    > +} rmi_supported_functions;
    > +
    > +static struct rmi_character_driver_list {
    > + struct list_head list;
    > + struct rmi_char_driver *cd;
    > +} rmi_character_drivers;
    > +
    > +static int physical_device_count;
    > +
    > +static int rmi_bus_match(struct device *dev, struct device_driver *driver)
    > +{
    > + struct rmi_driver *rmi_driver;
    > + struct rmi_device *rmi_dev;
    > + struct rmi_device_platform_data *pdata;
    > +
    > + rmi_driver = to_rmi_driver(driver);
    > + rmi_dev = to_rmi_device(dev);
    > + pdata = to_rmi_platform_data(rmi_dev);
    > + dev_dbg(dev, "Matching %s.\n", pdata->sensor_name);
    > +
    > + if (!strcmp(pdata->driver_name, rmi_driver->driver.name)) {
    > + rmi_dev->driver = rmi_driver;
    > + dev_dbg(dev, "%s: Match %s to %s succeeded.\n", __func__,
    > + pdata->driver_name, rmi_driver->driver.name);
    > + return 1;
    > + }
    > +
    > + dev_err(dev, "%s: Match %s to %s failed.\n", __func__,
    > + pdata->driver_name, rmi_driver->driver.name);
    > + return 0;
    > +}
    > +
    > +#ifdef CONFIG_PM
    > +static int rmi_bus_suspend(struct device *dev)
    > +{
    > +#ifdef GENERIC_SUBSYS_PM_OPS
    > + const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
    > +
    > + if (pm && pm->suspend)
    > + return pm->suspend(dev);
    If driver-pm- suspend is not there should you not fall back to . suspend ?

    > +#endif
    > +
    > + return 0;
    > +}
    > +
    > +static int rmi_bus_resume(struct device *dev)
    > +{
    > +#ifdef GENERIC_SUBSYS_PM_OPS
    > + const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
    > +
    > + if (pm && pm->resume)
    > + return pm->resume(dev);
    same here?
    > +#endif
    > +
    > + return 0;
    > +}
    > +#endif
    > +
    > +static int rmi_bus_probe(struct device *dev)




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