[GIT PULL] Broadcom STB GISB bus driver for 3.19 (v2)

[Florian Fainelli]

Le 04/12/2014 07:44, Arnd Bergmann a écrit :
> On Friday 28 November 2014 16:19:30 Florian Fainelli wrote:
>> This pull request contains the following changes to the Broadcom GISB bus
>> arbiter from Kevin Cernekee:
>>
>> - Extend brcmstb GISB bus driver to work on MIPS (currently ARM-only) and support
>>   65nm and 40nm MIPS-based chips such as: BCM7038, BCM7400 and BCM7435
> 
> Pulled into next/drivers, thanks!

Thanks! You may have to resolve a conflict when you merge
brcm/stb-smp-uart with next/drivers for this file, especially with the
commit below:

203bb85ed605e43eadca62afb3a8cd128a8ec10a ("bus: brcmstb_gisb: save and
restore GISB timeout")

for brcmstb_gisb_arb_suspend() and
brcmstb_gisb_arb_resume_noirq() which still use the ioread32/iowrite32
accessors instead of those introduced later on by Kevin: gisb_read() and
gisb_write. The merge resolution looks like this:


#ifdef CONFIG_PM_SLEEP
static int brcmstb_gisb_arb_suspend(struct device *dev)
{
        struct platform_device *pdev = to_platform_device(dev);
        struct brcmstb_gisb_arb_device *gdev = platform_get_drvdata(pdev);

        gdev->saved_timeout = gisb_read(gdev, ARB_TIMER);

        return 0;
}

/* Make sure we provide the same timeout value that was configured
before, and
 * do this before the GISB timeout interrupt handler has any chance to run.
 */
static int brcmstb_gisb_arb_resume_noirq(struct device *dev)
{
        struct platform_device *pdev = to_platform_device(dev);
        struct brcmstb_gisb_arb_device *gdev = platform_get_drvdata(pdev);

        gisb_write(gdev, gdev->saved_timeout, ARB_TIMER);

        return 0;
}

--
Florian